Sodium Triethylborohydride-Catalyzed Controlled Reduction of Unactivated Amides to Secondary or Tertiary Amines
作者:Wubing Yao、Lili He、Deman Han、Aiguo Zhong
DOI:10.1021/acs.joc.9b02211
日期:2019.11.15
The first transition-metal-free catalytic protocol for controlled reduction of amide functions using cheap and bench-stable hydrosilanes as reducing agents has been established. By altering the hydrosilane and solvent, the new method enables the selective cleavage of unactivated C-O bonds in amides and allows the C-N bonds to selectively break via the deacylated cleavage. Overall, this novel process
建立了第一个无过渡金属的催化方案,该方案使用廉价且稳定的氢化硅烷作为还原剂,可控制地还原酰胺功能。通过改变氢硅烷和溶剂,该新方法能够选择性裂解酰胺中未活化的CO键,并使CN键通过脱酰裂解选择性地断裂。总体而言,这种新颖的方法可以为使用化学计量金属系统控制羧酰胺还原的当前方法提供一种通用的替代方法。