Asymmetric synthesis of vicinal amino alcohols via organocatalytic sequential α-amination/Grignard addition reactions of aldehydes
摘要:
An organocatalytic sequential alpha-amination/Grignard addition reaction of aliphatic aldehydes is reported. The synthetically useful anti-vicinal amino alcohol derivatives were obtained in high yields and with high stereoselectivities. These derivatives could be easily transformed into oxazolidinones. (C) 2016 Elsevier Ltd. All rights reserved.
Polymer-immobilized α,α-bis[bis-3,5-(trifluoromethyl)phenyl]prolinol silyl ether: synthesis and application in the asymmetric α-amination of aldehydes
作者:Anton A. Guryev、Maksim V. Anokhin、Alexei D. Averin、Irina P. Beletskaya
DOI:10.1016/j.mencom.2015.11.002
日期:2015.11
alpha,alpha-Bis[bis-3,5-(trifluoromethyl)phenyl]prolinol silyl ether anchored onto polystyrene was synthesized and tested in asymmetric alpha-amination of aldehydes. The catalytic activity and enantioselectivity of the immobilized catalyst persist for 3 cycles.
Enantioselective Organocatalysis in Ionic Liquids: Addition of Aliphatic Aldehydes and Ketones to Diethyl Azodicarboxylate
The enantioselectiveaddition of aldehydes to diethylazodicarboxylate in ionicliquids in the presence of chiralorganocatalysts has been investigated. Of seven differentorganocatalysts tested, L-proline and L-thiazoline-2-carboxylic acid gave the highest enantioselectivities (up to 94 % ee). The best results were obtained by using [bmim]PF6 and [hmim]BF4 as ionicliquids. The scope of the methodology
Asymmetric synthesis of vicinal amino alcohols via organocatalytic sequential α-amination/Grignard addition reactions of aldehydes
作者:Can Liu、Jiang Weng、Zi-Hui Lin、Wei-Jie Huang、Jing Guo、Lin-Jie Huang、Gui Lu
DOI:10.1016/j.tetasy.2016.12.004
日期:2017.1
An organocatalytic sequential alpha-amination/Grignard addition reaction of aliphatic aldehydes is reported. The synthetically useful anti-vicinal amino alcohol derivatives were obtained in high yields and with high stereoselectivities. These derivatives could be easily transformed into oxazolidinones. (C) 2016 Elsevier Ltd. All rights reserved.