Sonogashira coupling reactions in biodegradable ionic liquids derived from nicotinic acid
作者:Jitendra R. Harjani、Theodore J. Abraham、Alwyn T. Gomez、M. Teresa Garcia、Robert D. Singer、Peter J. Scammells
DOI:10.1039/b919394d
日期:——
The biodegradable ionic liquids, 3-butoxycarbonyl-1-methylpyridinium bis(trifluoromethanesulfonyl)imides (1a–d), have been evaluated as solvents for copper- and phosphine-free Sonogashiracoupling reactions. The stability of these ionic liquids toward basic conditions was analysed in order to further probe their utility for transition metal catalyzed reactions which require the presence of a base.