Process for preparing 25-hydroxycholecalciferol intermediates

Details Process for preparing 25-hydroxycholecalciferol intermediates Process for preparing 25-hydroxycholecalciferol intermediates

1975-02-21

1977-01-04

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204159, B01J 110, C07G 1300, C07J 900

Patent

active

040010961

ABSTRACT:
A method for preparing 9.beta., 10.alpha.-cholesta-5,7-diene-3.beta.,25 diol and 25-hydroxyprevitamin D.sub.3 by irradiation.

REFERENCES:
patent: 3661939 (1972-05-01), Toyoda et al.
Campbell et al., Steroids, vol. 13(1969) pp. 567-577.

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