申请人:DIXON Darren J.
公开号:US20150298109A1
公开(公告)日:2015-10-22
The present invention provides a bifunctional catalyst of the formula (1): wherein: each R
1
is independently selected from an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, an optionally substituted heteroaryl group, an optionally substituted aralkyl group and an optionally substituted alkaryl group; Z represents a divalent organic linking moiety optionally containing one or more stereocentres; and EWG represents an electron-withdrawing group.
(R
1
)
3
P═N—Z—NH-EWG (1)
本发明提供了一种双功能催化剂,其化学式为(1):其中:每个R1独立地选择自可选取代的烷基、可选取代的环烷基、可选取代的芳基、可选取代的杂环芳基、可选取代的芳基烷基和可选取代的烷基芳基;Z代表一个二价有机连接基,可选含一个或多个立体中心;EWG代表一个电子吸引基团。(R1)3P═N—Z—NH-EWG (1)