General Synthesis of Secondary Alkylamines by Reductive Alkylation of Nitriles by Aldehydes and Ketones
作者:Timon Schönauer、Sabrina L. J. Thomä、Leah Kaiser、Mirijam Zobel、Rhett Kempe
DOI:10.1002/chem.202004755
日期:2021.1.21
may permit solving challenges of chemical synthesis. We report here on a catalytic C−N bond formation reaction—the reductivealkylation of nitriles. Aldehydes or ketones and nitriles, all abundantly available and low‐cost starting materials, undergo a reductive coupling to form secondary alkylamines and inexpensive hydrogen is used as the reducing agent. The reaction has a very broad scope and many functional
Tropylium tetrafluoroborate promoted hydroboration of nitriles, imines and amides
作者:Son Hoai Doan、Thanh Vinh Nguyen
DOI:10.1039/d2gc01905a
日期:——
The conversions of nitriles, readily available synthetic precursors, into amines, imines or amides are important chemical transformations in both synthetic laboratories and industrial chemistry. There have been a diverse range of methods to promote this type of chemistry; however, a number of limitations still exist. In pursuit of a practical and environmentally benign nitrile hydroboration reaction
Amines are a very important class of compounds and the selective synthesis of differently substituted primary, secondary and tertiary alkyl amines is challenging. Here we present the synthesis of primary, secondary, and tertiary alkyl aminesfrom ammonia and alcohols, aldehydes, ketones and hydrogen by combining borrowing hydrogen or hydrogen autotransfer and reductive amination with hydrogen. The