TANDEM CARBOCATIONIC CYCLIZATION OF BIS(METHYLTHIO)METHYLENE ARYLCYCLOPROPYL KETONES - A PROMISING SEQUENCE FOR ASSEMBLING FUNCTIONALIZED CYCLOPENT[A]INDENE FRAMEWORK
Pk. Patra et al., TANDEM CARBOCATIONIC CYCLIZATION OF BIS(METHYLTHIO)METHYLENE ARYLCYCLOPROPYL KETONES - A PROMISING SEQUENCE FOR ASSEMBLING FUNCTIONALIZED CYCLOPENT[A]INDENE FRAMEWORK, Tetrahedron letters, 34(24), 1993, pp. 3951-3954
A novel route for assembling cyclopent[a]indene framework bearing usef
ul functionalities has been developed through bis(methylthio) carbeniu
m ion mediated Lewis acid induced tandem cyclization of bis(methylthio
)methylene aryl cyclopropyl ketones 1b - d and the corresponding carbi
nols 11b-d.