Syntheses of armed-macrocycles by reductive amination using NaBH(OAc)<sub>3</sub>under 1 MPa
作者:Yoichi Habata、Futoshi Osaka、Sachiko Yamada
DOI:10.1002/jhet.5570430123
日期:2006.1
monoaza-15-crown-5, diaza-12-crown-4, diaza-18-crown-6 ethers, and 1,4,7,10-tetraazacyclododecane having aromatic pendants were prepared by the reductive amination of the corresponding macrocycles with aromatic carboxyaldehydes in the presence of NaBH(OAc)3. Reductive amination under 1 MPa conditions provided significant shortening of the reaction time and yield enhancements.
制备了具有芳香族侧基的武装单氮杂12-冠-4,单氮杂15-冠-5,二氮杂12-冠-4,二氮杂18-冠-6醚和1,4,7,10-四氮杂环十二烷通过在NaBH(OAc)3存在下用芳族羧醛对相应的大环化合物进行还原胺化来实现。在1 MPa条件下进行还原胺化可显着缩短反应时间并提高收率。