Hydrochloric Acid → HCID 86733143, compound

Participants

Reaction Steps

3β-Hydroxy-17β-methoxycarbonyl-5α-androstan-11-one (4.75 g.) and toluene-p-sulphonyl chloride (5 g.) in pyridine (50 ml.) were allowed to stand at room temperature for four days. Water (10 ml.) was added, the resulting solution was stirred for an hour and was then poured into stirred water (1.1). The mixture was acidified with hydrochloric acid and the product collected, washed well with water and dried over sodium hydroxide in vacuo. Recrystallisation from chloroform/hexane containing a trace of ether afforded pure title compound (3.4 g.) as needles; m.p. 158°-160°; [α]D + 42.5°, (c 1.09).

Provenance & Evidence