Asymmetric synthese of de-ABC-cholestan-14-one and de-AB-cholest-8-en-9-one by an extracyclic methodology
摘要:
Efficient asymmetric syntheses of the title compounds have been performed starting from a cyclopentanone derivative which was obtained both diastereo- and enantio-selectively by the addition reaction of (S)-2-(8-phenylmenthoxycarbonyl)-2-cyclopentenone with E-methyldiphenylcrotylsilane.
Asymmetric synthese of de-ABC-cholestan-14-one and de-AB-cholest-8-en-9-one by an extracyclic methodology
摘要:
Efficient asymmetric syntheses of the title compounds have been performed starting from a cyclopentanone derivative which was obtained both diastereo- and enantio-selectively by the addition reaction of (S)-2-(8-phenylmenthoxycarbonyl)-2-cyclopentenone with E-methyldiphenylcrotylsilane.