Hj. Liu et al., Polyene cyclization promoted by the cross conjugated alpha-carbalkoxy enone system. An efficient approach to highly functionalized decalins, J CHIN CHEM, 46(3), 1999, pp. 453-462
The cross conjugated alpha-carbalkoxy enone system was found to be an excel
lent promoter for polyene cyclization. Under mild conditions, the reaction
occurred readily with a high degree of regio- and stereoselectivity. Based
on this facile process, an efficient method for the construction of highly
functionalized decalin derivatives has been developed.