85810-81-7Relevant articles and documents
Highly enantioselective aza-henry reaction of ketimines catalyzed by a chiral bifunctional thiourea-tertiary amine derived from quinine
Fang, Yanhong,Lu, Ning,Wei, Zhonglin,Cao, Jungang,Liang, Dapeng,Lin, Yingjie,Duan, Haifeng
supporting information, p. 4371 - 4375 (2018/11/25)
We have developed a highly enantioselective aza-Henry reaction of aryl α-ketoester-derived N-Ts ketimines with a wide range of substrate scope by a simpler bifunctional thiourea-tertiary amine catalyst derived from quinine. A variety of ketimines were investigated and corresponding products were obtained in excellent yields (up to 99% yield) with excellent enatioselectivities (up to 99% ee).
Facile preparation of the methyl acetal of methyl phenylglyoxylate
Bovonsombat,McNelis
, p. 2361 - 2365 (2007/10/02)
The methyl acetal of methyl phenylglyoxylate has been prepared from halophenylethynes, N-iodosuccinimide and catalytic amounts of (hydroxy(p-tosyloxy)iodo)benzene or p-toluenesulfonic acid in methanol at room temperature.
Diphenylsilane Reduction of C=O and C=N Bearing Electron-Withdrawing Group in the Presence of Aluminium(III) Chloride
Hojo, Makoto,Hojo, Masahiro,Inoue, Yoshihiko,Tanimoto, Shigeo
, p. 2588 - 2592 (2007/10/02)
Several α-keto esters and methyl N-p-tolylsulfonyl-2-aryl-2-iminoacetates were reduced to the corresponding α-hydroxy esters and methyl N-p-tolylsulfonyl-2-arylglycinates in high yields by a combination of aluminium(III) chloride and diphenylsilane under operating conditions in which diphenylsilane was added to the pre-formed substrate-aluminium(III) chloride complex in dichloromethane and the mixture stirred.The case of an exactly equivalent amount of aluminium(III) chloride as the substrate resulted in good results.