Metal-Catalyzed Cotrimerization of Arynes and Alkenes
作者:Iago Quintana、Arnold J. Boersma、Diego Peña、Dolores Pérez、Enrique Guitián
DOI:10.1021/ol0611954
日期:2006.7.1
Cotrimerization of arynes and electron-deficient alkenes selectively affords dihydrophenanthrenes or ortho-olefinated biaryls, depending on the catalytic system employed. Our findings support a mechanism involving benzyne and a metallacycloheptadiene as key intermediates.
Stereoselective protonation of stable carbanions derived from 9,10-dihydrophenanthrenes