手性C 2 -对称 3,3'-二氨基甲基-联萘酚 ( AMB ) 是一种用于三取代丙烯腈不对称环氧化的有机催化剂。使用氢过氧化枯烯 (CHP) 作为氧化剂,3,3'-双(( R , R )-2-苯乙基氨基甲基)-( R )-联萘酚( AMB2 )在 - 30 °C 得到手性环氧化物作为单一非对映异构体,对映选择性范围为 15% ee 至 97% ee。
Organocatalytic Stereoselective Epoxidation of Trisubstituted Acrylonitriles
作者:Claudia De Fusco、Consiglia Tedesco、Alessandra Lattanzi
DOI:10.1021/jo102020a
日期:2011.1.21
The first diastereospecific and enantioselective epoxidation of trans-2-aroyl-3-arylacrylonitriles by means of the commercially available diaryl L-prolinol/tert-butyl hydroperoxide system has been developed. These diversely functionalized epoxides were obtained in excellent yield (up to 99%), complete diastereoselectivity for the transisomer, and good enantioselectivity (up to 84% ee). Highly enantioenriched epoxides can be easily obtained after a single crystallization (ee > 90%).
Chiral Aminomethylbinaphthol‐Catalyzed Diastereo‐ and Enantioselective Epoxidation of Trisubstituted Acrylonitriles
作者:Eri Ogino、Satoru Kuwano、Takayoshi Arai
DOI:10.1002/adsc.202200036
日期:2022.4.12
3′-bisaminomethyl-binaphthol (AMB) is an organocatalyst for the asymmetric epoxidation of trisubstituted acrylonitriles. Using cumene hydroperoxide (CHP) as an oxidant, 3,3′-bis((R,R)-2-phenylethylaminomethyl)-(R)-binaphthol (AMB2) catalyzed epoxidation of trans-2-aroyl-3-arylacrylonitriles at −30 °C to give the chiral epoxides as a single diastereomer with enantioselective manner ranging from 15% ee to 97%
手性C 2 -对称 3,3'-二氨基甲基-联萘酚 ( AMB ) 是一种用于三取代丙烯腈不对称环氧化的有机催化剂。使用氢过氧化枯烯 (CHP) 作为氧化剂,3,3'-双(( R , R )-2-苯乙基氨基甲基)-( R )-联萘酚( AMB2 )在 - 30 °C 得到手性环氧化物作为单一非对映异构体,对映选择性范围为 15% ee 至 97% ee。