Palladium-Catalyzed Site-Selective Benzocyclization of Naphthoic Acids with Diaryliodonium Salts: Efficient Access to Benzanthrones
作者:Chenwei Xue、Limin Wang、Jianwei Han
DOI:10.1021/acs.joc.0c02192
日期:2020.12.4
Dual activation of both C–I and vicinal C–H bonds of diaryliodonium salts allowing for diarylation is a subject of rapid construction of π-extended frameworks. Here, we report palladium-catalyzed cascade of C8-arylation/intramolecular Friedel–Crafts acylation of α-naphthoic acids in the synthesis of benzanthrone derivatives. The step-economical protocol tolerates various substrates, which resulted
“Highly Destabilized Carbocations,” Generation and Rearrangements in the Reaction of 8,9,10,11-Tetrahydrocyclohepta[a]phenalen-6(12H)-one-12-ol and -7(12H)-one-12-ol with Sulfuric Acid
The reaction of 8,9,10,11-Tetrahydrocyclohepta[a]phenalen-6(12H)-one-12-ol and -7(12H)-one-12-ol with H2SO4 gave skeletally rearranged 9- and 10-methylbenz[de]anthracen-6-one and -7-one via destabilized vicinal dications.