Reaction of 2-Benzoyl-1,2-Dihydroisoquinoline-1-Carbonitrile Tetrafluoroborate Salt with 2-Arylmethylene-1,3-Indanediones. Regio- and Stereochemistry of the Reaction. Formation of Spiro Compounds

Abstract

The regio- and stereochemistry of spiro-adducts derived from [4+2] cycloaddition between the title compounds were deduced by 1H NMR data and the elucidated structure of the tetrasubstituted pyrroles obtained by acidic hydrolysis.