He Jinmei, Zheng Jiyue, Liu Jian, She Xuegong, Pan Xinfu
Department of Chemistry, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
Org Lett. 2006 Sep 28;8(20):4637-40. doi: 10.1021/ol061924f.
N-Heterocyclic carbene as an efficient organic catalyst was employed to catalyze an intramolecular nucleophilic substitution reaction. When R(2) was a phenyl group, the cyclization process underwent isomerization, leading to generation of benzofuranone.
