Regio‐ and Enantioselective Iridium‐Catalyzed N‐Allylation of Indoles and Related Azoles with Racemic Branched Alkyl‐Substituted Allylic Acetates
作者:Seung Wook Kim、Tabitha T. Schempp、Jason R. Zbieg、Craig E. Stivala、Michael J. Krische
DOI:10.1002/anie.201902799
日期:2019.6.3
Cyclometallated π‐allyliridium C,O‐benzoates modified with (S)‐tol‐BINAP, which are stable to air, water, and SiO2, catalyze highly enantioselective N‐allylations of indoles and related azoles. This reaction complements previously reported metal‐catalyzed indole allylations in that complete levels of N versus C3 and branched versus linear regioselectivity are observed.
(S)-tol-BINAP改性的环金属化π-烯丙基铱C,O-苯甲酸酯对空气,水和SiO 2稳定,可催化吲哚和相关唑类的高度对映选择性N-烯丙基化。该反应是对先前报道的金属催化的吲哚烯丙基化反应的补充,可以观察到N相对于C3的完全水平以及支链相对于线性区域选择性的完整水平。