Catalytic Desymmetrizing Dehydrogenation of 4-Substituted Cyclohexanones through Enamine Oxidation
作者:Lihui Zhu、Long Zhang、Sanzhong Luo
DOI:10.1002/anie.201713327
日期:2018.2.19
A desymmetrizing dehydrogenation process catalyzed by a chiral primary amine is described herein. The reaction proceeds through the oxidation of a ketone enamine by IBX and enables the highly enantioselective desymmetrization of 4‐substituted cyclohexanones with the generation of chiral 4‐substituted cyclohexenones containing a remote γ‐stereocenter.
Lithium N-trityl-N-(R)-1-phenethylamide, a readily available and useful base for the enantioselective formation of chiral enolates from achiral ketones
作者:Jakub Busch-Petersen、E.J Corey
DOI:10.1016/s0040-4039(00)01185-0
日期:2000.9
Lithium N-trityl-N-(R)-1-phenylethylamide (6) is a readily available and useful reagent for the enantioselective (20:1) conversion of 4-t-butylcyclohexanone to the corresponding (S)-enolate. This reaction provides access to numerous useful chiral compounds. (C) 2000 Elsevier Science Ltd. All rights reserved.
Enantioselective Enolborination
作者:Dale E. Ward、Wan-Li Lu
DOI:10.1021/ja973686c
日期:1998.2.1
Aoki Kazumasa, Nakajima Makoto, Tomioka Kiyoshi, Koga Kenji, Chem. and Pharm. Bull., 41 (1993) N 5, S 994-996
作者:Aoki Kazumasa, Nakajima Makoto, Tomioka Kiyoshi, Koga Kenji