Alkene Difunctionalization Directed by Free Amines: Diamine Synthesis via Nickel-Catalyzed 1,2-Carboamination
作者:Taeho Kang、José Manuel González、Zi-Qi Li、Klement Foo、Peter T. W. Cheng、Keary M. Engle
DOI:10.1021/acscatal.2c00373
日期:2022.4.1
alkenyl amines with aryl/alkenylboronic ester nucleophiles and N–O electrophiles is reported. The reaction proceeds efficiently with free primary and secondary amines without needing a directing auxiliary or protecting group and is enabled by fine-tuning the leaving group on the N–O reagent. The transformation is highly regioselective and compatible with a wide range of coupling partners and alkenyl
报道了一种通过镍催化的烯基胺与芳基/烯基硼酸酯亲核试剂和 N-O 亲核试剂的三组分 1,2-碳氨基化来获得差异取代的 1,3- 和 1,4-二胺的通用方法。该反应在游离伯胺和仲胺的情况下有效进行,无需定向助剂或保护基团,并且可以通过微调 N-O 试剂上的离去基团来实现。该转化具有高度区域选择性,并且与多种偶联配偶体和烯基胺底物兼容,所有这些都在室温下进行。一系列动力学研究支持烯烃与镍催化剂配位限制周转的机制。