我们报告了催化亚胺催化的一般策略,这是由前所未有的1,2-硼基碳到氮的迁移实现的。基于通过硼基从碳到氮的1,2-迁移以及铜从氮到碳的迁移将α-硼烷基烷基酰胺基铜中间体重排为α-硼烷基氨基烷基铜物种的发现,我们开发了一种铜催化的在存在B 2(pin)2和LiO t Bu的情况下,将多种醛胺和酮亚胺与烯丙基亲电试剂选择性烯丙基化。我们期望这种催化的亚胺-苯丙氨酸催化策略可能会衍生出用于合成各种功能化胺的有用方法。
Novel and Efficient Method for the Allylation of Carbonyl Compounds and Imines Using Triallylaluminum
作者:Kao-Hsien Shen、Ching-Fa Yao
DOI:10.1021/jo052385f
日期:2006.5.1
triallylaluminum as a reagent for the allylation of carbonyl compounds and imines. The allylation of ketimines without additional metal catalyst is known so far only in the case of the Grignardreagent. Triallylaluminum is a useful alternative to provide the homoallylic amines in excellent yield upon addition to aldimines and ketimines. The significant reactivity of this reagent was confirmed by its
Indium-catalyzed allylation of imines with electrochemically assisted catalyst regeneration
作者:Gerhard Hilt、Konstantin I. Smolko、Christoph Waloch
DOI:10.1016/s0040-4039(02)00044-8
日期:2002.2
The chemo-electrochemical regeneration of low valent indium(I) reagents for Barbier-type carbon carbon bond formation processes is described for several C N double bond systems. The homoallylic amines are obtained in good yields from aniline-derived aldimines. However, with ketimines and electron-poor aldimines. direct electrochemical or chemical reduction becomes a competing side reaction. Thus, hydrazones and sulfonimines gave almost exclusively the reduced products with only minor amounts of the allylated products being formed. (C) 2002 Elsevier Science Ltd. All rights reserved.