5-exo versus 6-endo intramolecular carbolithiation of N-allyl-N-(2-lithioallyl)amines
摘要:
N-Allyl-N-(2-lithioallyl)amines undergo intramolecular carbometallation via 5-exo or 6-endo addition. The course of the reaction depends on the nitrogen electron density. 3-Functionalized-4-methylenepyrrolidines can be synthesized. (C) 1997 Published by Elsevier Science Ltd.