Tag: M.W:400-500

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.250285-32-6,1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride,as a common compound, the synthetic route is as follows.

Tris [4- (pyridin-4-yl) phenyl] amine compound (47.6 mg, 0.10 mmol)1,3-bis (2,6-diisopropylphenyl) imidazolium chloride (IPr.HCl) (127.5 mg, 0.30 mmol),PdCl2 (53.2 mg, 0.30 mmol)And potassium carbonate (41.5 mg, 0.30 mmol) were added to a 25 mL single neck flask,Tetrahydrofuran (5 mL) was then added,The reaction was stirred at 65 C for 16 h under argon atmosphere.Stop the reaction,Cool to room temperature,concentrate,Thin layer chromatography to give compound I,Yield 57%.

250285-32-6, As the paragraph descriping shows that 250285-32-6 is playing an increasingly important role.

Reference£º
Patent; Shangqiu Normal University; Wang Tao; Xu Kai; Liu Lantao; Zhao Wenxian; Liu Shuang; Li Feng; Meng Tuanjie; Xie Huanping; (12 pag.)CN105131044; (2017); B;,
Chiral Catalysts
Chiral catalysts – SlideShare

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, cas is 250285-32-6, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,250285-32-6

General procedure: 4.23.1. [1,3-Bis(2,6-di-iso-propylphenyl)imidazol-2-ylidene] copper(I) chloride, (IPr)CuCl [23] An oven-dried Schlenk flask containing 1,3-bis(2,6-di-iso-propylphenyl) imidazolium chloride (849.0 mg, 2.00 mmol), CuCl (198.0 mg, 2.00 mmol), NaOt-Bu (192.0 mg, 2.00 mmol) was evacuated and refilled with argon three times. THF (10 mL) were added to this Schlenk flask. The resulting suspension was stirred at room temperature for 4 h. Then, it was filtered through Celite in glovebox. Yield: 81%; white powder; IR (KBr): 3160, 3137, 3070, 2968, 2926, 2869, 1963, 1577, 1469, 1456, 1405, 1383, 1327, 1114, 1104, 1212, 1058, 937, 946, 809, 765, 742, 699 cm 1; 1H NMR (400 MHz, CDCl3): d = 7.48 (t, J = 8.0 Hz, 2H), 7.29 (d, J = 7.6 Hz, 4H), 7.11 (s, 2H), 2.53-2.60 (m, 4H), 1.30 (d, J = 12 Hz, 12H), 1.22 (d, J = 6.8 Hz, 12H); 13C NMR (100 MHz, CDCl3): d = 180.6, 145.6, 134.4, 130.6, 124.2, 123.2, 28.8, 24.9, 23.9.

As the rapid development of chemical substances, we look forward to future research findings about 250285-32-6

Reference£º
Article; Wu, Shaoxiang; Guo, Jiyi; Sohail, Muhammad; Cao, Chengyao; Chen, Fu-Xue; Journal of Fluorine Chemistry; vol. 148; (2013); p. 19 – 29;,
Chiral Catalysts
Chiral catalysts – SlideShare

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.250285-32-6,1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride,as a common compound, the synthetic route is as follows.

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%., 250285-32-6

As the paragraph descriping shows that 250285-32-6 is playing an increasingly important role.

Reference£º
Article; Xu, Chen; Wang, Zhi-Qiang; Fu, Wei-Jun; Ji, Bao-Ming; Yuan, Xiao-Er; Han, Xin; Xiao, Zhi-Qiang; Hao, Xin-Qi; Song, Mao-Ping; Journal of Organometallic Chemistry; vol. 777; (2015); p. 1 – 5;,
Chiral Catalysts
Chiral catalysts – SlideShare

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.250285-32-6,1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride,as a common compound, the synthetic route is as follows.

taken the imidazole chlorine salt [(R 1 NCHCHNR 1) CH]Cl (0.42 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, in the supernatant by adding triphenylphosphine (0.26 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 85%., 250285-32-6

250285-32-6 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride 2734913, achiral-catalyst compound, is more and more widely used in various.

Reference£º
Patent; Suzhou University; sun, hongmei; li, zhuang; liu, ling; chen, qi; (17 pag.)CN105541922; (2016); A;,
Chiral Catalysts
Chiral catalysts – SlideShare