A Facile Synthesis of Indolizines by 1,3-Dipolar Cycloaddition of Pyridinium and Related Heteroaromatic Ylides with Alkenes in the Presence of TPCD, Py4Co(HCrO4)2

ZHU Chang-cheng, WEI Xu-dong, HU Jia-xin, WANG De-fen, HU Hong-wen

Chemical Research in Chinese Universities . 1994, (2): 93 -101 .