Tosyl isocyanide and ethyl chloroformate react with nitrostyrenes to afford nitro-substituted pyrroles in good yield when a catch-and-release protocol was employed as a purification strategy.
Base-mediated ynone-isocyanide [3+2] cycloaddition: a general method to 2,3,4-tri-substituted 1-<i>H</i>-pyrroles and bis-pyrroles
作者:Ankit Kumar、Pawan K. Mishra、Akhilesh K. Verma
DOI:10.1039/d3cc01586f
日期:——
A general method for the synthesis of functionalized pyrroles and bis-pyrroles from ynones under transition-metal-free conditions in good to excellent yields has been developed.