Rearrangement of ammonium ylides produced by intramolecular reaction of catalytically generated metal carbenoids. Part 2. Stereoselective synthesis of bicyclic amines
作者:Clark、Hodgson、Goldsmith、Blake、Cooke、Street
DOI:10.1039/b108182a
日期:2001.12.11
a cyclic N-allylamine in which the diazo group is tethered adjacent to nitrogen, or a vinyl-substituted cyclic amine in which the diazo group is N-tethered to the ring. In the former type of reaction, stereoselective ylide formation and rearrangement usually delivers high levels of diastereocontrol. In the latter case, efficient ‘chirality transfer’ can be accomplished when the reaction is performed
由束缚在环状烯丙基胺上的铜类胡萝卜素的分子内反应产生的铵化铵经过[2,3]重排以传递双环胺。该反应可以使用其中重氮基团与氮相邻地连接的环状N-烯丙胺或其中重氮基团为N的乙烯基取代的环状胺来进行。-拴在戒指上。在前一类反应中,立体选择性叶立德的形成和重排通常可实现高水平的非对映控制。在后一种情况下,当使用对映体纯的底物进行反应时,可以实现有效的“手性转移”。该反应已用于构建吡咯烷,吲哚并咪唑和喹唑烷系统,并在甘露糖胺和兽用生物碱中发现了CE亚基。