Zur Kenntnis der Gallensäuren. 69. Mitteilung

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Abstract
1 g. dehydrocholic acid trioxime was treated with 50 cc. glacial acetic acid and 50 cc. 23% NaNO2 soln. After 17 hrs. at room temp., the mixture was filtered, 300 cc. H2O added to the filtrate, and the new, pale yellow nitrimine, C24H34N2O6, was precipitated. 1.3 g. of this perni-troso compound were dissolved in 47 cc. 96% alcohol, 2.6 g. hydroxylamine HC1 dissolved in 9 cc. H2O and 13 cc. 10% NaOH added and the mixture heated on the steam bath. After the addition of more hydroxylamine HC1 and further heating, the trioxime, C24H37N3O5, crystallized from the soln. 1 g. of the pernitroso compound was dissolved in 10. cc. 10% NaOH, and, after 1/2 hr., the mixture was acidified with HC1, and a brownish, yellow precipitate obtained. The product was treated with hydroxylamine as above, and dehydrocholic acid obtained. 1 g. of bilianic acid dioxime was treated with 50 cc. glacial acetic acid and 50 cc. 23% NaNO2 soln. After about 2 hrs., at room temp., the new nitrimine, C23H34N2O9, crystallized from the soln.

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