13-03691. α-Ergostenol [Archived]
Nomenclature
CAS number: 632-32-6
(3β,5α)-Ergost-8(14)-en-3-ol. C28H48O; mol wt 400.68.
C 83.93%, H 12.07%, O 3.99%.
Description and references
Prepd by hydrogenation of ergosterol acetate in acetic acid soln: Hart et al., J. Am. Chem. Soc. 52, 2016 (1930); from 22-dihydroergosterol: Windaus, Langer, Ann. 508, 105 (1934).
Properties
Plates from methanol, mp 130-131°. [α]D16 +11° (c = 0.9 in methanol). [α]546 10.2° (c = 1 in methanol). Precipitated by digitonin.Derivative
Acetate.C30H50O2; mol wt 442.72.
C 81.39%, H 11.38%, O 7.23%.
Properties
mp 110°.Derivative
Benzoate.C35H52O2; mol wt 504.79.
C 83.28%, H 10.38%, O 6.34%.
Properties
mp 118-120°.Derivative
Methyl ether.C29H50O; mol wt 414.71.
C 83.99%, H 12.15%, O 3.86%.
Properties
mp 56°. [α]D20 +6.3° (in chloroform).Status
This monograph has been retired and is no longer subject to revision or update.