Estradiol → Estradiol-dinicate

Participants

Reaction Steps

Estradiol (2 g, 0.0073 mol) was added to nicotinoyl chloride hydrochloride (5.3 g, 0.029 mol) in dry pyridine (30 ml) at 0° C. The mixture was refluxed for 1 hour and then poured over 100 ml of ice water, filtered and dried over P2O5 under vacuum. Yield 90% (3.18 g), m.p. 148°-150° C. Anal. calculated for C30H31N2O4 : C, 74.50; H, 6.47; N, 5.79. Found: C, 74.40; H, 6.32; N, 5.75. The product has the formula: ##STR91##

Provenance & Evidence