3-Cyclic Ethylene Acetal of 17a-Hydroxy-3, 11-dioxo-4-etio-cholenohydroxamic Acid (1Vj.-A stock solution of hydroxylamine was prepared: to a solution of 13.90 g. of hydroxylamine hydrochloride in 140 ml. of methanol was added portionwise a solution of sodium methoxide prepared from 4.6 g. of sodium and 100 ml. of methanol. The resulting mixture was cooled briefly and filtered from the precipitated sodium chloride. The ketal I (29.0 g.) was ...
