Share a compound : 141556-45-8

141556-45-8 is used more and more widely, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

1,3-Dimesityl-1H-imidazol-3-ium chloride, cas is 141556-45-8, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,141556-45-8

General procedure: A mixture of pyrazine ligand 1 or 2 (1mmol), Li2PdCl4 (1mmol) and NaOAc (1mmol) in 20mL of dry methanol was stirred for 24hat rt. The yellow solids (yield: 92%) were collected by filtration and washed several times with methanol, which can be assigned to be palladacyclic dimers. Then, a Schlenk tube was charged with the above chloride-bridged palladacyclic dimers (0.5mmol), the corresponding imidazolium salt (1.25mmol) and tBuOK (2.5mmol) under nitrogen. Dry THF was added by a cannula and stirred at room temperature for 3h. The product was separated by passing through a short silica gel column with CH2Cl2 as eluent, the third band was collected and afforded the corresponding carbene adducts 3-10 as yellow solids. The characterization data for 3: Yield: 78%.

141556-45-8 is used more and more widely, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Short Survey; Xu, Chen; Wang, Zhi-Qiang; Yuan, Xiao-Er; Han, Xin; Xiao, Zhi-Qiang; Fu, Wei-Jun; Ji, Bao-Ming; Hao, Xin-Qi; Song, Mao-Ping; Journal of Organometallic Chemistry; vol. 777; (2015); p. 1 – 5;,
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Share a compound : 141556-45-8

141556-45-8 is used more and more widely, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

1,3-Dimesityl-1H-imidazol-3-ium chloride, cas is 141556-45-8, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,141556-45-8

General procedure: A mixture of pyrazine ligand 1 or 2 (1mmol), Li2PdCl4 (1mmol) and NaOAc (1mmol) in 20mL of dry methanol was stirred for 24hat rt. The yellow solids (yield: 92%) were collected by filtration and washed several times with methanol, which can be assigned to be palladacyclic dimers. Then, a Schlenk tube was charged with the above chloride-bridged palladacyclic dimers (0.5mmol), the corresponding imidazolium salt (1.25mmol) and tBuOK (2.5mmol) under nitrogen. Dry THF was added by a cannula and stirred at room temperature for 3h. The product was separated by passing through a short silica gel column with CH2Cl2 as eluent, the third band was collected and afforded the corresponding carbene adducts 3-10 as yellow solids. The characterization data for 3: Yield: 78%.

141556-45-8 is used more and more widely, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Short Survey; Xu, Chen; Wang, Zhi-Qiang; Yuan, Xiao-Er; Han, Xin; Xiao, Zhi-Qiang; Fu, Wei-Jun; Ji, Bao-Ming; Hao, Xin-Qi; Song, Mao-Ping; Journal of Organometallic Chemistry; vol. 777; (2015); p. 1 – 5;,
Chiral Catalysts
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Some tips on 141556-45-8

With the complex challenges of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

As a common heterocyclic compound, it belongs to chiral-catalyst compound, name is 1,3-Dimesityl-1H-imidazol-3-ium chloride, and cas is 141556-45-8, its synthesis route is as follows.,141556-45-8

General procedure: A 20 mL vial was charged with the NHC¡¤HCl (300 mg, 1 equiv.) and the zinc salt (1 equiv.). Tetrahydrofuran (5 mL) was added, the vial was sealed with a screw-cap and the reaction was stirred at 60C for two hours. The mixture was allowed to reach room temperature and the solvent was removed under reduced pressure toafford the desired product.

With the complex challenges of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Article; Santoro, Orlando; Nahra, Fady; Cordes, David B.; Slawin, Alexandra M.Z.; Nolan, Steven P.; Cazin, Catherine S.J.; Journal of Molecular Catalysis A: Chemical; vol. 423; (2016); p. 85 – 91;,
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New learning discoveries about 141556-45-8

With the rapid development of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

1,3-Dimesityl-1H-imidazol-3-ium chloride, cas is 141556-45-8, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,141556-45-8

In a Schlenk flask under argon, to a THF suspension (20 mL) of 1,3-bis(2,4,6-trimethylphenyl)imidazolium chloride (1 g, 2.93 mmol), solid potassium tert-butoxide (0.35 g, 3.12 mmol) was added in a single portion. The mixture was stirred for 45 min at room temperature, and volatiles were removed under vacuum. After addition of THF (20 mL) and stirring for 5 min, the reaction mixture was filtered under argon, and carbon tetrabromide (2.42 g, 5.86 mmol) in THF (10 mL) was added dropwise to solution, over a period of ca. 30 min. The resulting brown solution was stirred for 4 h. Subsequent removal of volatiles in vacuo gave a dark brown residue that was extracted into toluene (10 mL) and then a solution of HCl in dioxane (4 mol/L) was added, and the resulting white precipitate was collected. Yield 351 mg (29%). 1H NMR (500 MHz, DMSO-d6): delta 2.13 (s, 12H, o-CH3), 2.39 (s, 6H, p-CH3), 7.27 (s, 4H, Ar-H), 10.13 (s, 1H, HNCN); 1H NMR (500 MHz, CDCl3): delta 2.20 (s, 6H, p-CH3), 2.54 (s, 12H, o-CH3), 6.82 (s, 4H, Ar-H), 10.16 (s, 1H, HNCN); 13C NMR (125 MHz, DMSO-d6): delta 16.9, 20.7, 113.1, 129.3, 129.6, 135.1, 140.5, 141.7; Elemental analysis calcd. for C21H23Br2ClN2: C 50.58, H 4.65, N 5.62; found C 50.55, H 4.59, N 5.67; ESI-MS (C21H23Br2Cl1N2) (m/z): 497.4 [M]+.

With the rapid development of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Article; Amini, Mojtaba; Bagherzadeh, Mojtaba; Rostamnia, Sadegh; Chinese Chemical Letters; vol. 24; 5; (2013); p. 433 – 436;,
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Simple exploration of 141556-45-8

141556-45-8, As the paragraph descriping shows that 141556-45-8 is playing an increasingly important role.

141556-45-8, 1,3-Dimesityl-1H-imidazol-3-ium chloride is a chiral-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Under N2 atmosphere, a mixture of imidazolium salts 1 (0.22mmol), PdCl2 (0.2 mmol), K2CO3 (0.44 mmol) and benzo[h]quinoline 2 (0.22 mmol) was stirred in anhydrous THF (2.0 mL) at 50 or 90 C for 18 h. Then the solvent was removed under reduced pressure, and the residue was purified by flash chromatography on silica gel (CH2Cl2) to give complexes 3 as yellow solids.

141556-45-8, As the paragraph descriping shows that 141556-45-8 is playing an increasingly important role.

Reference£º
Article; Liu, Feng; Hu, Yuan-Yuan; Li, Di; Zhou, Quan; Lu, Jian-Mei; Tetrahedron; vol. 74; 39; (2018); p. 5683 – 5690;,
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Analyzing the synthesis route of 141556-45-8

With the synthetic route has been constantly updated, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride,belong chiral-catalyst compound

As a common heterocyclic compound, it belong chiral-catalyst compound,1,3-Dimesityl-1H-imidazol-3-ium chloride,141556-45-8,Molecular formula: C21H25ClN2,mainly used in chemical industry, its synthesis route is as follows.,141556-45-8

General procedure: Under N2 atmosphere, a mixture of imidazolium salts 1 (0.22mmol), PdCl2 (0.2 mmol), K2CO3 (0.44 mmol) and benzo[h]quinoline 2 (0.22 mmol) was stirred in anhydrous THF (2.0 mL) at 50 or 90 C for 18 h. Then the solvent was removed under reduced pressure, and the residue was purified by flash chromatography on silica gel (CH2Cl2) to give complexes 3 as yellow solids.

With the synthetic route has been constantly updated, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride,belong chiral-catalyst compound

Reference£º
Article; Liu, Feng; Hu, Yuan-Yuan; Li, Di; Zhou, Quan; Lu, Jian-Mei; Tetrahedron; vol. 74; 39; (2018); p. 5683 – 5690;,
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Some tips on 141556-45-8

With the complex challenges of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

As a common heterocyclic compound, it belongs to chiral-catalyst compound, name is 1,3-Dimesityl-1H-imidazol-3-ium chloride, and cas is 141556-45-8, its synthesis route is as follows.,141556-45-8

taken the imidazole chlorine salt [(R 1 NCHCHNR 1) CH]Cl (0.34 g, 1.0 mmol), ferrous bromide (0.22 g, 1.0 mmol) and sodium bromide (0.33 g, 3.2 mmol), in thf as the solvent, the 60 C reaction under 16 hours. Centrifugal, supernatant fluid transfer, remove precipitation, is added to the supernatant liquid of the three ring hexyl phosphine (0.28 g, 1.0 mmol), in 30 C reaction under 6 hours. Vacuum to remove the solvent, hexane washing, drying, in a mixed solvent of toluene and tetrahydrofuran extraction, centrifugal supernatant fluid transfer, after concentrating the serum to obtain a target product, yield 84%.

With the complex challenges of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Patent; Suzhou University; sun, hongmei; li, zhuang; liu, ling; chen, qi; (17 pag.)CN105541922; (2016); A;,
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Some tips on 1,3-Dimesityl-1H-imidazol-3-ium chloride

With the complex challenges of chemical substances, we look forward to future research findings about 141556-45-8,belong chiral-catalyst compound

As a common heterocyclic compound, it belongs to chiral-catalyst compound, name is 1,3-Dimesityl-1H-imidazol-3-ium chloride, and cas is 141556-45-8, its synthesis route is as follows.,141556-45-8

General procedure: The silver(I) N-heterocyclic carbene complexes Ag(I)-NHCs were synthesized according to the Lin?s Ag2O method. To a solution of 1 mmol of NHC precursors (1,3-disubstituted imidazolinium chloride salts) in 5 mL of DCM, 0.5 mmol of Ag2O was added and the mixture was stirred at room temperature for 18 h. Later the reaction mixture was filtered through a celite and concentrated under vacuo to obtain the desired Ag(I)-NHC catalysts as a white crystalline solids.

With the complex challenges of chemical substances, we look forward to future research findings about 141556-45-8,belong chiral-catalyst compound

Reference£º
Article; Thirukovela, Narasimha Swamy; Balaboina, Ramesh; Kankala, Shravankumar; Vadde, Ravindhar; Vasam, Chandra Sekhar; Tetrahedron; vol. 75; 18; (2019); p. 2637 – 2641;,
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New learning discoveries about 141556-45-8

With the rapid development of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

1,3-Dimesityl-1H-imidazol-3-ium chloride, cas is 141556-45-8, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,141556-45-8

General procedure: Under an N2 atmosphere, the mixture of imidazolium salts 1 (1.1 mmol), benzoxazole or benzothiazole (2.0 mmol), PdCl2 (1.0 mmol) and K2CO3 (1.1 mmol) was stirred in anhydrous THF (10 mL) under reflux for 16 h. After cooling, filtration and evaporation,the residue was purified by preparative TLC on silica gelplates eluting with CH2Cl2 to afford the corresponding N-heterocyclic carbene-palladium(II) complexes 3a-d.

With the rapid development of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Article; Wang, Tao; Xie, Huanping; Liu, Lantao; Zhao, Wen-Xian; Journal of Organometallic Chemistry; vol. 804; (2016); p. 73 – 79;,
Chiral Catalysts
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New learning discoveries about 141556-45-8

With the rapid development of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

1,3-Dimesityl-1H-imidazol-3-ium chloride, cas is 141556-45-8, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,141556-45-8

General procedure: General Method: To a 20 mL solution of 1.1 equivalents of nickelocene (41 mg, 0.22 mmol) in anhydrous THF, the respective imidazolium NHC precursor (0.2 mmol) was added as a solid. The resulting suspension was then refluxed for 4 h. The general method was modified for 4, 5 and 6. The reactions involving the formation of more electron-deficient 4 and 5 required 10 h at reflux with 2 equivalents of nickelocene (75 mg, 0.4 mmol). Synthesis of 6 was achieved after 16 h of reflux in the presence of 2.6 equivalents of nickelocene (98 mg, 0.52 mmol). The compounds were then purified by column chromatography. Details available in the Supporting information.

With the rapid development of chemical substances, we look forward to future research findings about 1,3-Dimesityl-1H-imidazol-3-ium chloride

Reference£º
Conference Paper; Luca, Oana R.; Thompson, Bennett A.; Takase, Michael K.; Crabtree, Robert H.; Journal of Organometallic Chemistry; vol. 730; (2013); p. 79 – 83;,
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