A silver-initiated free-radical intermolecular hydrophosphinylation of unactivated alkenes
作者:Zejiang Li、Fenghua Fan、Zengyan Zhang、Yingxia Xiao、Dong Liu、Zhong-Quan Liu
DOI:10.1039/c5ra04136h
日期:——
A scalable, operationally easy intermolecular hydrophosphinylation of various unactivated alkenes with H–P(O) compoundsviaan Ag(i)-initiated free radical process was developed. Mechanistic studies suggest that atom transfer processes were involved in this system.
Iodotrifluoromethylation of Alkenes and Alkynes with Sodium Trifluoromethanesulfinate and Iodine Pentoxide
作者:Zhaojia Hang、Zejiang Li、Zhong-Quan Liu
DOI:10.1021/ol501380e
日期:2014.7.18
A scalable, selective, and operationally easy iodotrifluoromethylation of a wide range of alkenes and alkynes by using two simple and safe solids, sodiumtrifluoromethanesulfinate and iodine pentoxide, in aqueous medium has been developed. Mechanistic studies confirm that free-radical processes are involved in this system since the key radical intermediates such as CF3 and β-CF3 alkyl radicals have
A facile direct conversion of aldehydes to esters and amides using acetone cyanohydrin
作者:I. Victor Paul Raj、A. Sudalai
DOI:10.1016/j.tetlet.2005.09.173
日期:2005.11
electron-withdrawing groups undergo rapid reactions with a variety of alcohols and secondary amines to afford the corresponding esters and amides, respectively, in high yields, when treated with NaCN or acetonecyanohydrin and base under ambient reaction conditions. In case of α,β-unsaturated aldehydes, simultaneous reduction of the CC bond along with esterification occurred to produce the saturated esters in high
Free-radical anti-Markovnikov hydroalkylation of unactivated alkenes with simple alkanes
作者:Yunfei Tian、Anbo Ling、Ren Fang、Ren Xiang Tan、Zhong-Quan Liu
DOI:10.1039/c8gc01394b
日期:——
A Cu(II)-mediated radical anti-Markovnikov hydroalkylation of unactivated alkenes with simple alkanes via selective C(sp3)–Hbond cleavage was achieved. This reaction features high site-selectivity diverse functional group tolerance, and scalability.
reaction via the palladium-catalyzed insertion of isocyanide has been established. Isocyanides were inserted into C−O bond under mild conditions, using the readily available allylester as the starting materials. In addition, the intramolecular acyl transfer from the ester group oxygen atom to the isocyanide nitrogen atom afforded imide derivatives in moderate to excellent yields. Additionally, this