Exploring the nucleophilicity of<i>N</i>,<i>N</i>′-diamidocarbenes: Heteroallenes and related compounds as coupling reagents
作者:Young-Gi Lee、Jonathan P. Moerdyk、Christopher W. Bielawski
DOI:10.1002/poc.3004
日期:2012.11
The propensity of a stableN,N′‐diamidocarbene (DAC) to react with various heteroallenes was explored. The DAC condensed with 4‐nitrophenyl azide as well as 4‐nitrophenyl isothiocyanate to afford the respective acyclic triazene or zwitterionic dihydropyrimidinium imidothiolate products. Treating the DAC with two equivalents of 3‐nitrophenyl isocyanate afforded an iminooxazolidinone rather than the