Claisen Condensation of<i>N</i>‐Methylpyrrolidinone and α‐Chloronicotinic esters
作者:Thomas Kaminski、Gilbert Kirsch
DOI:10.1002/jhet.5570450128
日期:2008.1
Reaction between α-halo-nicotinic esters and a nucleophilic source such as the N-methylpyrrolidin-2-one (NMP) gave unexpected results. The presence of the halide on the pyridine gave a very interesting migration reaction. Extension to 6-methylnicotinic ester derivatives lead to an unexpected carbanion condensation.