Lewis Base Directed Cycloaddition Reactions of 2-Pyrones and Alkynylaluminum Reagents
作者:Damien F. Crépin、Joseph P. A. Harrity
DOI:10.1021/ol401952k
日期:2013.8.16
In situ generated alkynylaluminum reagents have been utilized in a [4 + 2] cycloaddition with 2-pyrones bearing a Lewis basic donor. The reactions proceed at or below room temperature and with complete regiocontrol. This one-pot method affords diversely substituted aromatic compounds under very mild conditions.
原位生成的炔基铝试剂已用于与带有路易斯碱性供体的 2-吡喃酮进行 [4 + 2] 环加成反应。反应在室温或低于室温下进行,并具有完全的区域控制。这种一锅法可在非常温和的条件下提供多种取代的芳香族化合物。