作者:Michinori Suginome、Yusuke Tanaka、Tomoaki Hasui
DOI:10.1055/s-2006-939070
日期:——
2-Dialkylamino-4H-1,3,2-benzodioxaborins, salicyl alcohol derived aminoboranes, serve as efficient and mild iminium ion generators in the reductive amination of aldehydes with NaBH4. Using a diisopropylamino derivative, a variety of amines including secondary and primary amines, and ammonia can participate to the reductive amination in aprotic organic solvents without the use of acidic promoters.
2-二烷基氨基-4H-1,3,2-苯并二氧硼烷和基于水杨醇的氨基硼烷在与NaBH4的还原胺化反应中,作为高效且温和的亚胺离子生成剂。使用二异丙基氨基衍生物,二级和初级胺以及氨可以在无质子有机溶剂中参与还原胺化,而无需使用酸性促进剂。