Anthracene Capped Isobenzofuran: A Synthon for the Preparations of Iptycenes and Iptycene Quinones
作者:Bao-Jian Pei、Wing-Hong Chan、Albert W. M. Lee
DOI:10.1021/ol200309v
日期:2011.4.1
Anthracene capped isobenzofuran 5 (5,6-(9,10-dihydroanthracen-9,10-yl)isobenzofuran) was synthesized for the first time. It is a highly reactive and versatile synthon for the synthesis of iptycene derivatives via Diels−Alder reactions. Cycloadducts 10 could be readily deoxygenated to iptycenes 11. Two new reactions of PhI(OAc)2/TfOH have been explored. Endoxides 10 were directly oxidized to iptycene