Catalytic Enantioselective Alkene Aminohalogenation/Cyclization Involving Atom Transfer
作者:Michael T. Bovino、Sherry R. Chemler
DOI:10.1002/anie.201109044
日期:2012.4.16
the synthesis of chiral 2‐bromo, chloro, and iodomethyl indolines and 2‐iodomethyl pyrrolidines (see scheme). Stereocenter formation is believed to occur by enantioselective cis aminocupration and CX bond formation is believed to occur by atom transfer. The ultility of the products as versatile synthetic intermediates was demonstrated, as was a radical cascade cyclization sequence.
已解决的问题:标题反应用于合成手性 2-溴、氯和碘甲基二氢吲哚和 2-碘甲基吡咯烷(参见方案)。立体中心的形成被认为是通过对映选择性顺式 氨基氧化发生的,C X 键的形成被认为是通过原子转移发生的。证明了产品作为多功能合成中间体的实用性,以及自由基级联环化序列。