Day: April 13, 2022

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Ethyl 5-chloro-3-formyl-1H-indole-2-carboxylate, is researched, Molecular C12H10ClNO3, CAS is 43142-76-3, about Synthesis of 11H-1,2,4-triazolo[4,3-b]pyridazino[4,5-b]indoles.Computed Properties of C12H10ClNO3.

4-Oxo-5H-pyridazino[4,5-b]indoles, obtained from the corresponding 3-formylindole-2-carboxylates, were subjected to chlorination to obtain the corresponding 4-chloro-5H-pyridazino[4,5-b]indoles which on reaction with hydrazine hydrate in the presence of K2CO3 give 4-hydrazino-5H-pyridazino[4,5-b]indole. The latter were treated with acetic acid/benzoyl chloride to yield the desired title compounds I (R = Me, OMe, Br, OEt, Cl; R1 = Me, Ph). These compounds were screened for their antimicrobial activity.

In some applications, this compound(43142-76-3)Computed Properties of C12H10ClNO3 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Chiral Catalysts,
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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called The role of sodium chloride in the sensory and physico-chemical properties of sweet biscuits, published in 2021-03-30, which mentions a compound: 13925-00-3, mainly applied to sweet biscuit sodium chloride sensory physicochem property; Biscuit structure; Biscuits; Physicochemical properties; Porosity; Sensory properties; Sodium reduction, Name: 2-Ethylpyrazine.

Salt is included in many foods which consumers do not regard as salty. This ”hidden-salt” may offer functional benefits but is often overlooked in sodium reduction strategies. This study investigated its role in shortbread-like sweet biscuits (1.05 g NaCl/100 g). Sensory tests revealed significant flavor and texture differences after a salt reduction of 33% (0.86 g/ 100 g). This was explained by differences in the partitioning of hydrophobic aroma compounds into the headspace and a significant impact on structure. Texture anal. and X-ray-μCT measurements revealed a reduced hardness with larger and more air cells in salt-reduced biscuits. It is suggested that salt impacts on cereal proteins by altering their aggregation around flour particles and at bubble walls and that slower water loss occurs in salted matrixes during baking. Hence, this study revealed the key properties significantly affected by salt reduction and proposes an explanation which will help to develop a targeted ”hidden-salt” reduction strategy.

In some applications, this compound(13925-00-3)Name: 2-Ethylpyrazine is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Recommanded Product: 2-Ethylpyrazine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Ethylpyrazine, is researched, Molecular C6H8N2, CAS is 13925-00-3, about Characterization of aroma-active compounds in four yeast extracts using instrumental and sensory techniques. Author is Wang, Zhuolin; Xiao, Qing; Zhuang, Jinda; Feng, Tao; Ho, Chi-Tang; Song, Shiqing.

Gas chromatog.-olfactometry coupled with sensory anal. and partial least-squares regression (PLSR) anal. led to the identification of the odorants responsible for the different flavors of four yeast extracts Sensory anal. showed that LA00L had an intense sulfurous attribute, and LA00 was characterized by fatty and green notes, FA31 exhibited the floral odor, while KA02 had strong phenolic, animal, fermented, roasted, and caramellic notes. A total of 37 key aroma compounds with odor activity values greater than 1 were determined 2,4-Di-tert-butylphenol and methional were the most potent aroma compounds In addition, the key aroma compounds in LA00L were nonanal, di-Me disulfide, and γ-decalactone. Octanal, di-Me disulfide, and benzeneacetaldehyde were the key aroma compounds in LA00. In FA31, styrene, benzeneacetaldehyde, and acetophenone were the key aroma compounds, while indole, 2-methoxyphenol, benzeneacetaldehyde, and p-cresol contributed significantly to the aroma of KA02. PLSR showed that p-cresol and indole were significantly responsible for the phenolic and animal notes inducing the off-flavor (yeasty odor) of yeasty extracts More significantly, indole was first reported to have an important effect on yeasty odor.

In some applications, this compound(13925-00-3)Recommanded Product: 2-Ethylpyrazine is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Chiral Catalysts,
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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about ONO pincer type ligand complexes of Al(III) as efficient catalyst for chemical fixation of CO2 to epoxides at atmospheric pressure.Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one.

A series of ONO pincer hydrazone based most active mono-nuclear Al(III) complexes was successfully synthesized and characterized with the help of NMR, IR and mass spectrometry and only one complex with thiophen-2-yl group was confirmed by single-crystal anal. The synthesized Al(III) complexes were then employed as capable catalysts for the solvent-free chem. fixation of CO2 with epoxides I (R1 = CH3, CH2Cl, Ph, CH2=CH, etc.) at atm. pressure and could be reused five times without loss of any catalytic activity. In addition, the catalytic mechanism was investigated by analyzing intermediates via 1H NMR, 13C NMR, and mass MALDI-TOF. The excellent catalytic performance could be due to simultaneous attack and the opening of the epoxide by metal centers to form an alkoxide ion which activates the CO2 the same time.

In some applications, this compound(931-40-8)Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Recommanded Product: H-Leu-NH2.HCl. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: H-Leu-NH2.HCl, is researched, Molecular C6H15ClN2O, CAS is 10466-61-2, about Prediction of chiral separation of ketoprofen using experimental design. Author is Valliappan, K.; Kannan, K.; Manavalan, R.; Muralidharan, C..

The paper demonstrates how exptl. design could be applied to predict chiral resolution and run time for indirect chiral HPLC anal. of ketoprofen. An attempt is made to establish quant. relation between chromatog. variables and the response factors (resolution and retention time). The effects of important chromatog. variables on chiral resolution and retention time were highlighted by way of interaction studies. This technique enables optimal use of resources by avoiding trial and error approach. The study advocates that exptl. design is a prospective tool to predict and optimize chromatog. conditions for chiral HPLC anal.

In some applications, this compound(10466-61-2)Recommanded Product: H-Leu-NH2.HCl is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 13925-00-3, is researched, Molecular C6H8N2, about Impacts of quaker beans over sensory characteristics and volatile composition of specialty natural coffees, the main research direction is furfural furfuryl formate quaker bean sensory roasted Coffea beverage; Coffee Arabica; Quaker; Roasted coffee.Category: chiral-catalyst.

The objective of this study was to evaluate the volatile composition and the sensory effect of the presence of Quaker beans in natural specialty coffee beverage and, consequently, to confront the requirement of the Specialty Coffee Association regarding the total absence of Quaker beans in a natural specialty coffee batch. Sensory anal. and volatile composition were performed for three different colorations of Quaker beans, added sep. to natural specialty coffee samples at seven different concentrations Beans with color equal to or above Agtron 82.8 neg. affected the sensory characteristics of natural specialty coffee only from the presence of 7 Quaker beans in one cup (65 beans). Through the anal. of volatile composition, volatile compounds formed during roasting were identified in Quaker beans from precursors present in raw immature beans. Therefore, the color and sensory characteristics of Quaker are a consequence of the chem. composition of an immature bean.

In some applications, this compound(13925-00-3)Category: chiral-catalyst is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Dynamic changes of volatile and phenolic components during the whole manufacturing process of Wuyi Rock tea (Rougui)》. Authors are Liu, Zhibin; Chen, Fuchen; Sun, Jinyuan; Ni, Li.The article about the compound:2-Ethylpyrazinecas:13925-00-3,SMILESS:CCC1=NC=CN=C1).Electric Literature of C6H8N2. Through the article, more information about this compound (cas:13925-00-3) is conveyed.

Wuyi Rock tea (WRT), a top-ranking oolong tea, possesses characteristic woody, floral, nutty flavor. WRT flavor is mainly formed during the manufacturing process. However, details regarding its formation process are not fully understood yet. In this study, the dynamics of volatile and phenolic components over the whole manufacturing process of WRT were investigated. During withering, despite minor changes in volatile and phenolic components, the central vacuole shrunk remarkably, which reduced the cell mech. performance and facilitated the subsequent enzymic fermentation During fermentation, approx. 78% of flavan-3-ols in fresh tea leaves were oxidized and converted to a diverse mixture of highly heterogeneous oxidation products, such as theaflavins, whereas flavonols, phenolic acids, and xanthine alkaloids remained stable throughout the manufacturing process. Aldehydes, ketones, and heterocyclic compounds, imparting woody, floral, and nutty scent, were mainly formed during the roasting steps. This detailed information can expand our understanding on the formation of WRT flavor.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《4-Hydroxypipecolic acid from Acacia species, and its stereoisomers》. Authors are Clark-Lewis, J. W.; Mortimer, P. I..The article about the compound:4-Hydroxypicolinic acidcas:22468-26-4,SMILESS:O=C(O)C1=NC=CC(O)=C1).Safety of 4-Hydroxypicolinic acid. Through the article, more information about this compound (cas:22468-26-4) is conveyed.

The title compound was isolated on a preparative scale from Acacia oswaldii leaves and separated from the accompanying acids through the Et2O soluble N-nitroso derivative (I). Hydrolysis of I and separation on an ion exchange column gave (-)-pipecolic acid (II) and the hydroxy acid, which was shown by unequivocal degradations to be (-)-trans-4-hydroxy-L-pipecolic acid (III). III was converted by stereospecific transformations into cis-4-hydroxy-L- (IV) and -D-pipecolic acid (V), so that 3 of the 4 optically active forms of 4-hydroxypipecolic acid were now available. A. oswaldii leaves (5.5 g.) extracted with alc. and chromatographed on sulfonated polystyrene gave 95 g. amino acids. The imino acids were extracted into Et2O as the N-nitroso derivatives The imino acids (46 g.) dissolved in 58 cc. refluxing H2O, the solution diluted with alc., and cooled gave 4-hydroxypipecolic acid. Purification gave 23 g. III, m. 285-6° (decomposition); II was obtained as the HCl salt, m. 256-8° (6.5 g. from 17.3 kg. leaves), [α]18D -10.5° (c 8, H2O). Separation of II and III was also achieved by selective elution from Zeo-Karb 225; III was eluted with 0.02-0.4N HCl, and II (and proline) with 0.4-0.8N acid. The mother liquors from III from 20 kg. leaves treated this way, and the column finally washed with 1.6N HCl gave 1.66 g. compound, m. 231-4° (decomposition), [α]24D 15° (c 1, H2O). Milled heartwood of A. excelsa (2094 g.) similarly worked up gave 4 g. III and 0.35 g. II. Similar extractions of other samples of A. excelsa heartwood gave 0.017-0.08% III and 0.001-0.01% II. III (0.01-0.03%) was also obtained from A. mollissima heartwood and sapwood. III isolated as described above was obtained as prisms, m. 294° (decomposition) (alc.), [α]20D -13° (c 1, H2O). III did not react with HIO4; the 1-(2,4-dinitrophenyl) derivative formed prisms, m. 183°; Cu salt, blue prisms, m. 229° (decomposition). III on paper chromatograms sprayed with ninhydrin and heated 5-10 min. at 100-10° gave a greyish green to brownish purple color. III 1-benzoyl derivative obtained in 60-70% yield m. 174°, [α]15D -54° (c 1, alc.). Benzoylation of III with excess BzCl did not yield the dibenzoate. Heating the 1-benzoyl derivative of III caused epimerization at the 2-C atom. p-MeC6H4SO2Cl (0.95 g.) in Me2CO with 0.58 g. III gave 0.7 g. (-)-trans-4-hydroxy-1-p-toluenesulfonyl-L-pipecolic acid, m. 162° (EtOAc-C6H6), [α]19D -16° (c 1, alc.). PhNCO (0.6 g.) was added slowly during 10 min. to 0.58 g. III in 4 cc. N NaOH, diphenylurea precipitated, and the solution acidified to give 0.48 g. (-)-trans-4-hydroxy-1-phenylcarbamoyl-L-pipecolic acid (VI), m. 181-97°, [α]26D -24.5° (c 1, alc.). VI (1.49 g.) in refluxing H2O gave 1.05 g. (-)-trans-4′-hydroxy-3-phenylpiperidino[1′,2′:1,5] hydantoin (VII), prisms, m. 204-5°, [α]23D -53° (c 1, alc.). VII (0.61 g.) dissolved in 4.63 cc. N NaOH and the solution diluted gave [α]D -17°, [α]D -40° (after 3 hrs.) and [α]D -45.4° after 24 hrs. III (0.725 g.) in 25 cc. 50% aqueous C5H5N adjusted to pH 10 with 1.4 cc. N NaOH, 1.2 cc. phenylisothiocyanate added, the mixture shaken, extracted with C6H6, the aqueous layer acidified, and the solid collected gave 0.56 g. (-)-trans-3-phenyl-4′-phenylthiocarbamoyloxypiperidino[1′,2′:1,5]-2-thiohydantoin, m. 213-14°(alc.), [α]22D -74° (c 0.2, alc.). III (0.051 g.), 0.023 g. red P, and 1 cc. HI heated 6 hrs. at 145° in a sealed tube gave 0.0076 g. II. III (2 g.), 0.32 g. red P, and 20 cc. HI heated 12 hrs. at 150° in 4 sealed tubes and the solutions combined contained II and other components. The materials separated on Zeo-Karb gave 0.22 g. II.HCl. III (0.02 g.), 0.007 g. red P, and 0.2 HI was heated 12 hrs. at 145°, evaporated, the residue dissolved in H2O, and examined by paper chromatography; III was absent and the chromatogram showed II and compounds that were apparently 4-iodopipecolic acids. In the 2nd experiment the reduction mixture treated with Ag2CO3, the solids removed, and the aqueous phase chromatographed showed the presence of 2-amino-4-pentenoic acid (VIII) and baikiain (IX). VIII gave a purple color with ninhydrin at 110-15° and IX gave a gray-green color with ninhydrin and a pink color with isatin. III (0.02 g.) was heated 9 hrs. at 145° with 0.0035 g. red P, and 0.2 cc. HI, evaporated, the residue treated in H2O with Ag2CO3 and the Ag salts separated Half the supernatant solution was hydrogenated over PtO2 3 hrs. and chromatograms showed the presence of 2-aminopentanoic acid (norvaline), II, and a minor component. III (2 g.) in 8 cc. PhAc heated 1.5 hrs. at 190°, diluted with Et2O, and extracted with 2N HCl gave 0.52 g. 4-hydroxypiperidine, m. 55-65°; dimorphic 1-p-toluenesulfonate, m. 114-15° or 123-4°. CrO3 (8N) in 7.5 cc. aqueous H2SO4 added to 2.18 g. III in 150 cc. AcOH, left 1.5 hrs. at 20°, MeOH added, the next day the solution decanted, the solutions from 4 such reactions evaporated, diluted, and the components separated on Zeo-Karb gave β-alanine and II. The oxo acid fractions were combined and evaporated to give 1.28 g. 4-oxo-L-pipecolic acid-HCl-H2O (X), decomposing 203°, [α]21D 3.8° (c 2, H2O). The HCl salt (0.4 g.) eluted from a Zeo-Karb 225 column with N NH4OH gave 0.19 g. (-)-4-oxo-L-pipecolic acid, prisms, decomposing 240°, [α]23D -14.8° (c 1, H2O). β-Alanine fractions collected and evaporated gave 0.59 g. containing II, converted into 0.27 g. of the phenylcarbamoyl derivatives Authentic N-phenylcarbamoyl-β-alanine was obtained as blades, m. 173-4° (H2O). PhNCO (0.3 g.) added during 15 min. to 0.4 g. X in 8 cc. 0.5N NaOH, and the filtrate acidified gave 4′-oxo-3-phenylpiperidino(1′,2′:1,5)hydantoin (XI), m. 187°. XI (0.1 g.) in alc. showed mutarotation after 23 hrs. XI exhibited [α]23D -87° (c 0.366, alc.). X (2 g.) in 20 cc. H2O at pH 9 treated 1 hr. at room temperature with 0.112 g. NaBH4 and the product treated on Zeo-Karb 225 gave IV.H2O, plates, m. 265° (decomposition), [α]23D -17° (c 1.1, H2O). IV.2H2O m. 265° (decomposition); Cu salt, blue plates, m. 245° (decomposition); N-(2,4-dinitrophenyl) derivative (62%), prisms, m. 134° (aqueous alc.). BzCl (0.15 g.) added portionwise to 0.163 g. IV.H2O in 3.2 cc. 0.7N NaOH, and the filtrate acidified gave, after 14 hrs. at 0°, 0.119 g. N-benzoyl derivative, blades, m. 104°, [α]23D -39.5° (c 1, alc.). The same product was obtained when 2.2 equivalents BzCl were used. Me 4-chloropicolinate (3.43 g.) in PhCH2OH treated portionwise with 1 g. Na in 30 cc. PhCH2OH, the mixture refluxed 45 min., 50 cc. H2O, 100 cc. Et2O, and 50 cc. 2N HCl added, the mixture shaken, the Et2O washed with dilute HCl, the acidic extracts combined, washed, and 50 cc. 5N NaOH added, and the mixture stored at 0° gave 3.65 g. Na 4-benzyloxypicolinate. Acidification gave 2.4 g. 4-benzyloxypicolinic acid (XII), prisms, m. 172° (alc.); 83% HCl.H2O salt, m. 162°. The HCl salt heated at 200° gave a liquid distillate consisting of PhCH2Cl and 0.15 g. 4-hydroxypicolinic acid (XIII), prisms, m. 258° (decomposition). Hydrogenation of 1 g. XII in 20 cc. 5N HCl at room temperature over PtO2 during 29 hrs. gave 0.52 g. XIII, m. 255-8°. Hydrogenation was inhibited in 1.5N NH3 but in AcOH at 65° hydrogenation gave II and III. XII (6.46 g.) in 50 cc. H2O hydrogenated 24 hrs. at 105°/70 atm. over 0.285 g. PtO2 and the acids isolated from the soluble mixture of 1.91 g. by paper chromatography gave after 24 hrs. bands of II and 4-hydroxypipecolic acids. The product (0.29 g.) in dilute HCl was concentrated to give 0.075 g. (±)-cis-4-hydroxypipecolic acid-HCl, prisms, m. 253-5° (decomposition). III (6 mg.) heated 9 hrs. at 145° in a sealed tube with 0.1 cc. N NaOH gave a mixture of cis and trans isomers; a trace of the epimer was similarly formed by heating in H2O alone, but not in N HCl. The epimeric mixture of imino acids formed by heating 5 mg. III in 0.3 cc. saturated aqueous Ba(OH)3 12 hrs. at 155° in a sealed tube was compared with a number of compounds III 1-benzoyl derivative (2.49 g.) heated 5 min. at 200°, refluxed 6.5 hrs. with 100 cc. 6N HCl, BzOH removed, and the aqueous layer paper chromatographed showed the presence of cis and trans-4-hydroxy acids in equal amounts III (2.9 g.) refluxed 4 hrs. with 30 cc. AcOH and 10.2 cc. Ac2O gave 1.1 g. (±)-1-acetyl-4-hydroxy-D-pipecolic lactone (XIV), plates, m. 148-9° (EtOAc), [α]24D 181° (c 1, alc.). XIV (1 g.) refluxed 3 hrs. with 50 cc. 2N HCl gave 0.74 g. V.2H2O, m. 266-9° (decomposition), [α]24D 17° (c 1, H2O). II was obtained from A. excelsa heartwood in prisms, m. 273-5° (decomposition); HCl salt, [α]22D -10.5° (c 6, H2O). N-Benzoyl-L-pipecolic acid crystallized as prisms, m. 133°, [α]22D -72° (c 1, alc.). 1-Phenylcarbamoyl-L-pipecolic acid (80%) formed prisms, m. 178°, [α]20D -39°. Recrystallization from refluxing H2O gave the optically inactive phenylhydantoin (XV), m. 159-60°. (±)-Pipecolic acid-HCl (m. 258-60°) was obtained in 91% yield by hydrogenation of 5 g. picolinic acid in 20 cc. 5N HCl over 0.2 g. PtO2 24 hrs. at 25 atm./60°. This salt (0.66 g.) in 8 cc. N NaOH treated with 0.59 g. PhNCO gave 0.81 g. (±)-1-phenylcarbamoylpipecolic acid, m. 138° and 156-8°. Recrystallization after refluxing 1 hr. with H2O gave XV. Et β-ethoxycarbonylaminopropionate (38.1 g.) and 34.4 g. Et fumarate were added successively to 350 cc. C6H6 and 4.6 g. Na (the temperature rose to b.p. during 45 min.) the mixture finally refluxed 0.5 hr., diluted with Et2O, extracted with Et2O, washed, the strongly acidic solution saturated with NaCl, extracted with EtOAc, washed, dried, and the solvent evaporated gave 53.5 g. oil. The oil dissolved in 10N HCl, evaporated, and the residue refluxed 4.5 hrs. with 150 cc. alc. saturated with HCl gave 24.2 g. Et 1-ethoxycarbonyl-3-oxopyrrolidine-2-ylacetate (XVI), b0.3 122-8°; semicarbazone, m. 124°; dimorphic 2,4-dinitrophenylhydrazone, orange plates, m. 112-13°, or prisms, m. 135°. NaBH4 (0.38 g.) in 1 cc. H2O added during 10 min. at 15° to 4.86 g. XVI gave after chromatography 0.51 g. 3-hydroxypyrrolidin-2-ylacetic acid-H2O, prisms, m. 215-16° (decomposition); N-(2,4-dinitrophenyl) derivative, prisms, m. 205° (aqueous alc.). The imino acid was recovered after treatment with HNO2. The phenylcarbamoyl derivative lost the elements of H2O to give the lactone, prisms, m. 168°. The lactone was recovered after heating 8 hrs. on a steam bath with 3N HCl.

In some applications, this compound(22468-26-4)Safety of 4-Hydroxypicolinic acid is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Chiral Catalysts,
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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Zhurnal Obshchei Khimii called Reactions of etherates of tin and titanium tetrachlorides. III. Reactions of dioxane and tetrahydrofuran with organic acid chlorides in the presence of tin and titanium tetrachlorides, Author is Gol’dfarb, Ya. L.; Smorgonskii, L. M., which mentions a compound: 542-58-5, SMILESS is CC(OCCCl)=O, Molecular C4H7ClO2, Quality Control of 2-Chloroethyl acetate.

cf. C. A. 31, 6613.1. Condensation of dioxane (I) and tetrahydrofuran (II) and an organic acid chloride with SnCl4 and TiCl4 leads to ring rupture of I and II and the formation of β- and δ-chloroalkyl esters, resp., as the chief products. The reaction of 1 mol. each of I and BzCl with 2 mols. TiCl4 at 150-80° for 10 hrs., decomposition with ice and HCl, extraction with Et2O, washing of the extract with cold dilute NH4OH and H2O, removal of the Et2O and distillation of the residue afforded 70% BzOCH2CH2Cl (III), b751 263°, b10 134°. If SnCl4 is used, 68% III and 4.7 g. BzOCH2CH2OBz (IV) are formed. Heating III alone or with SnCl4 at 180-200° for 25 hrs. gave IV. While I and AcCl do not react in the presence of TiCl4, the reaction with SnCl4 and heating 30 hrs. give 16% AcOCH2CH2Cl, b. 145-7°, and a considerable amount of a high-boiling nonisolatable Cl product. Refluxing I and BzCl with TiCl4 or SnCl4 in C6H6 on a water bath for 16 hrs. yielded 79.5% BzO(CH2)3CH2Cl, b5.5 144-5°, dD20 1.159, nD20 1.5218, M. R.D 55.89, and a little BzO(CH2)4OBz (V), m. 80-1°. Under the same conditions 5 g. I, 5.6 g. AcCl and 9.4 g. SnCl4 in 25 ml. C6H6 gave AcO(CH2)3CH2Cl, b. 187-90°. The possible scheme of the formation of IV and V is: 2 BzO(CH2)nCl = BzO(CH2)nOBz + Cl(CH2)nCl.

In some applications, this compound(542-58-5)Quality Control of 2-Chloroethyl acetate is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Eisenhart, Andrew E.; Beck, Thomas L. published the article 《Specific Ion Solvation and Pairing Effects in Glycerol Carbonate》. Keywords: solvation ion pairing glycerol carbonate solvent DFT MD simulation; halide alkali ion solvation glycerol carbonate solvent DFT MD.They researched the compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one( cas:931-40-8 ).Computed Properties of C4H6O4. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:931-40-8) here.

Identifying the driving forces behind the solvation of inorganic salts by nonaqueous solvents is an important step in the development of green solvents. Here we focus on one promising solvent: glycerol carbonate (GC). Using ab initio mol. dynamics simulations, we build upon our previous work by detailing glycerol carbonate’s interactions with a series of anions, a lithium ion, and the LiF ion pair. Through these investigations, we highlight the changes in solvation behavior as the anion size increases, the competition of binding shown by lithium for the oxygens of GC, and the behavior of the LiF ion pair in a GC solution These results indicate the importance of the cation’s identity in ion-pairing structure and dynamics and lend insight into the key factors behind the specific ion effects seen in GC.

In some applications, this compound(931-40-8)Computed Properties of C4H6O4 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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