Oxidative Alkynylation of Imines with Alkynylcopper Reagents: A Straightforward and Practical Entry to Ynimines
作者:Gwilherm Evano、Anouar Laouiti、Kévin Jouvin、Flavien Bourdreux、Mohamed Rammah、Mohamed Rammah
DOI:10.1055/s-0031-1289760
日期:2012.5
We have developed an efficient and general synthesis of ynimines based on an oxidative cross-coupling between imines and alkynylcopper reagents. Upon simple addition of 1,2-dimethylimidazole in the presence of oxygen, these bench-stable, crystalline, and readily available polymeric compounds were found to be especially suitable reagents for the introduction of an alkynyl group into a wide range of ketimines at room temperature and under especially mild conditions.