Unsaturated steroids. Part 10. The mechanism of the anthrasteroid rearrangement: the conformation of anthrasteroids
Abstract
The mechanism previously suggested for the conversion of the adducts of steroidal 5,7-dienes with 4-phenyl-1,2,4-triazoline-3,5-dione into anthrasteroids has been substantiated. The conformation of the anthrasteroids has been clarified using c.d. and n.m.r. studies.