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
Chiral catalysts – SlideShare