Heilmittelchemische Studien In Der Heterocyclischen Reihe 35. Mitteilung. Über Sydnonimine. I. Herstellung und Eigenschaften von Sydnonimin-Salzen
作者:H. U. Daeniker、J. Druey
DOI:10.1002/hlca.19620450713
日期:——
The synthesis and properties of different types of sydnonimine salts have been investigated. The stability of these salts containing different types of acid components has been examined, and their behaviour towards bases and acids and on catalytic hydrogenation is described. The UV.- and NMR.-spectra of a number of these compounds are given and discussed.
作者:Fachao Yan、Zijun Huang、Chen-Xia Du、Jian-Fei Bai、Yuehui Li
DOI:10.1016/j.jcat.2021.01.003
日期:2021.3
Streckerreaction is widely applied for the synthesis of amino acids from aldehydes, amines and cyanides. Herein, we report the FeI2-catalyzed reductive Strecker type reaction of formamides instead of aldehydes to produce amino acetonitriles. The challenging capture of carbinolamine intermediates by CN− was achieved via Fe catalysis. This approach afforded better yields than the use of Ir- or Rh-catalysts