Electrochemical reduction of .alpha.,.beta.-unsaturated keto ste

Details Electrochemical reduction of .alpha.,.beta.-unsaturated keto ste Electrochemical reduction of .alpha.,.beta.-unsaturated keto ste

1975-01-14

1976-11-09

Edmundson, F.C.

Chemistry: electrical and wave energy

Processes and products

204 73R, C25B 304

Patent

active

039909565

ABSTRACT:
A process for the preparation of keto steroids by electrochemical reduction, comprising electrolyzing a .alpha.,.beta.-unsaturated keto steroid in a nonaqueous nitrogen-containing solvent containing an electrolyte which is at least one of:
A. a quaternary ammonium salt of the general formula NR.sub.1 R.sub.2 R.sub.3 R.sub.4 X, wherein R.sub.1.sub.+4 represent an alkyl, aryl, or aralkyl residue, or
B. an alkali or alkaline earth salt of X, wherein X is sufficient anion for charge equalization and represents halogen, tetrafluoborate, sulfate, perchlorate, alcoholate, arylsulfonate or alkylsulfonate.

REFERENCES:
patent: 3444057 (1969-05-01), Throop
patent: 3876514 (1975-04-01), Baiger

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