Enolates of 17,20:20,21-bismethylenedioxyprednisone

Journal of the Chemical Society D: Chemical Communications Pub Date: DOI: 10.1039/C29690001497

Abstract

The factors governing enol anion formation from 17,20:20,21-bismethylenedioxyprednisone (prednisone BMD) at C-6 and C-9 have been investigated by quenching with benzoic anhydride; kinetically controlled enolisation occurs at C-6 followed by rearrangement, catalysed by unenolised ketone, to the C-9 anion.

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