Access to
N
−CF
3
Formamides by Reduction of
N
−CF
3
Carbamoyl Fluorides
摘要:
AbstractThe departure into unknown chemical space is essential for the discovery of new properties and function. We herein report the first synthetic access to N‐trifluoromethylated formamides. The method involves the reduction of bench‐stable NCF3 carbamoyl fluorides and is characterized by operational simplicity and mildness, tolerating a broad range of functional groups as well as stereocenters. The newly made N−CF3 formamide motif proved to be highly robust and compatible with diverse chemical transformations, underscoring its potential as building block in complex functional molecules.
Unexpected Zirconium-Mediated Multicomponent Reactions of Conjugated 1,3-Butadiynes and Monoynes with Acyl Cyanide Derivatives
作者:Shasha Yu、Xu You、Yuanhong Liu
DOI:10.1002/chem.201202607
日期:2012.10.29
Going ber(zirc): Zirconium–butadiyne complexes react with acylcyanidederivatives through diverse reaction pathways. The complexes react with two molecules of carbamoyl cyanide to form 1,4‐benzodiazepin‐2‐one‐derivatives containing azazirconacycles. Reactions with either aroyl cyanides or alkyl cyanoformates lead to azazirconacyclopentenes containing a quaternary carbon center.