A Boron-Nitrogen Double Transborylation Strategy for Borane-Catalyzed Hydroboration of Nitriles
作者:Subham Pradhan、Raman Vijaya Sankar、Chidambaram Gunanathan
DOI:10.1021/acs.joc.2c01655
日期:2022.9.16
Organoborane-catalyzed hydroboration of nitriles provides N,N-diborylamines, which act as efficient synthons for the synthesis of primary amines and secondary amides. Known nitrile hydroboration methods are dominated by metal catalysis. Simple and metal-free hydroboration of nitriles using diborane [H-B-9-BBN]2 as a catalyst and pinacolborane as a turnover reagent is reported. The reaction of monomeric
腈的有机硼烷催化硼氢化提供了N , N-二硼胺,它们作为合成伯胺和仲酰胺的有效合成子。已知的腈硼氢化方法以金属催化为主。报道了使用乙硼烷 [HB-9-BBN] 2作为催化剂和频哪醇硼烷作为周转试剂对腈进行简单且无金属的硼氢化反应。单体 HB-9-BBN 与腈反应生成氢化桥联二硼亚胺中间体;提出了随后的涉及BN / BH σ键复分解的顺序双硼氢化-转硼化途径。