Synthesis and Diels-Alder reactions of 1,3-dimethyl-4-(phenylsulfonyl)-4H-furo[3,4-b]indole. A new annulation strategy for the construction of ellipticine and isoellipticine
4-(phenylsulfonyl)-4H-furo[3,4-b]indole - A stable synthetic analogue of indole-2,3-quinodimethane
作者:Mark G. Saulnier、Gordon W. Gribble
DOI:10.1016/s0040-4039(00)94105-4
日期:1983.1
The N-phenylsulfonyl derivative () of the previously unknown fused heterocycle 4H-furo[3,4-b]indole is synthesized from indole-3-carboxaldehyde () in 28% yield and undergoes a Diels-Alder reaction with benzyne to give 5H-benzo[b]carbazole () in 33% yield after deoxygenation and deprotection.
Synthesis and Diels-Alder reactions of 1,3-dimethyl-4-(phenylsulfonyl)-4H-furo[3,4-b]indole. A new annulation strategy for the construction of ellipticine and isoellipticine
作者:Gordon W. Gribble、Mark G. Saulnier、Mukund P. Sibi、Judy A. Obaza-Nutaitis