Stereoselective Synthesis of Angularly Methylated Trans Fused Hydrindanone by Conjugate Reduction

Abstract
The reducing reagent consisting of methylcopper, diiso-butylaluminum hydride and hexamethylphosphoric triamide causes the stereoselective trans conjugate reduction of the hydrindenone 1 to produce predominantly the angularly methylated trans fused hydrindanone 3.