Ss. Korde et al., OXIDATION, OF STEROIDAL 5-EN-3-BETA-OL WITH PYRIDINIUM CHLOROCHROMATE- ISOLATION OF KEY INTERMEDIATE, STEROIDAL 6-BETA-HYDROXY-4-EN-3-ONE, Synthetic communications, 27(19), 1997, pp. 3419-3430
The PCC oxidation of 5-en-3 beta-ol steroids proceeds to 4-en-3,6-dion
e through the intermediate 5-en-3-one. The isolation of another key in
termediate, steroidal 6 beta-hydroxy-4-en-3-one guides an understandin
g of the mechanism involved.