I. Coudanne et G. Balme, DIRECTED PALLADIUM-CATALYZED CASCADE CYCLIZATION AS AN APPROACH TO TRANS-HEXAHYDRO-1H-BENZ[F]INDENE AND CIS-HEXAHYDRO-1H-BENZ[F]INDENE, Synlett, (9), 1998, pp. 998
The hydrogenation of the acetylenic substrate 6 followed by a palladiu
m-catalyzed cascade bis-cyclization process led to a trans-hexahydro-1
H-benz[f]indene. By changing the order of the two preceding steps, onl
y the cis-hexahydro-1H-benz[f]indene structure was obtained.