(±)-3,4,4a,5,6,7-Hexahydro-4a-Methyl-7,7-Diphenyl-1(2H)-Naphthtlenone

Abstract

The title compound was prepared in 48% overall yield using a seven-step sequence. The synthesis involves stepwise construction of a 3-formyl-3,3-diphenypropyl side chain from the double bond of 3-ethenyl-3-methylcyclohexanone followed by aldol ring closure. The approach represents a general strategy for the synthesis of a number of (±)-7,7-diary1–3,4,4a,5,6,7-hexahydro-1(2H)-naphthalenones.