Efficient Co‐Catalyzed Double Hydroboration of Nitriles: Application to One‐Pot Conversion of Nitriles to Aldimines
作者:Kristina A. Gudun、Ainur Slamova、Davit Hayrapetyan、Andrey Y. Khalimon
DOI:10.1002/chem.202000753
日期:2020.4.16
being unaffected by various common functional groups, such as alkenes, alkynes, secondary amines, ketones, esters, amides, carboxylic acids, pyridines, nitriles, and nitro compounds. The overall transformation represents a synthetically valuable approach to aldimines from nitriles and can be performed in a sequential one-pot manner, tolerating ester, lactone, carboxamide and unactivated alkene functionalities
商用稳定的Co(acac)2 / dpephos体系用作HBPin对有机腈进行选择性和有效的室温氢硼化以生产一系列N,N-二硼烷基胺(RN(BPin)2)的预催化剂),它与醛原位反应生成醛亚胺。由N,N-二硼烷基胺形成醛亚胺不需要脱水剂,适用于各种N,N-二硼烷基胺和醛底物,并且具有高度的化学选择性,不受各种常见官能团的影响,例如烯烃,炔烃,仲胺,酮,酯,酰胺,羧酸,吡啶,腈和硝基化合物。整个转化过程代表了从腈中合成有价值的亚胺的方法,可以按顺序一锅法进行,耐受酯,内酯,