A platinum-catalyzed annulation reaction leading to medium-sized rings
作者:Dirk Hildebrandt、Wiebke Hüggenberg、Matthias Kanthak、Tobias Plöger、Iris M. Müller、Gerald Dyker
DOI:10.1039/b602498j
日期:——
A platinum-catalyzed dominoprocess with intermediate benzopyrylium cations reaches its optimum utility in the formation of 7- and 8-membered rings. With iron(III) chloride, a tetracyclic product is isolated, derived from an oxidative transformation of a metal-carbene intermediate.