Catalytic Asymmetric Allylic Substitution/Isomerization with Central Chirality Transposition
作者:Zhengyu Han、Han Zhuang、Luning Tang、Yu Zang、Wengang Guo、Hai Huang、Jianwei Sun
DOI:10.1021/acs.orglett.2c01559
日期:2022.6.17
asymmetric allylic substitution/isomerization process with central chirality transposition. This process takes advantage of the ambident reactivity of the 2-indole imine methide generated in situ from racemic tertiary indolylmethanols. The use of a suitable chiral phosphoric acid catalyst and an ortho-directing group allowed regioselective formation a C–C bond at the 3 position but enantiocontrolled construction
我们开发了一种具有中心手性转座的催化不对称烯丙基取代/异构化过程。该方法利用了由外消旋叔吲哚甲醇原位生成的 2-吲哚亚胺甲基化物的环境反应性。使用合适的手性磷酸催化剂和邻位定向基团允许在 3 位区域选择性地形成 C-C 键,但在 2-苄基位置上形成对映体控制的立体中心。