Synthese und IR.-spektroskopische Identifizierung epimerer 3-Äthinyl-5 α-cholestan-3-ole

✍ Scribed by Hans Berbalk; Karl Eichinger; Rudolf Schuster

• Publisher: John Wiley and Sons
• Year: 1977
• Tongue: German
• Weight: 302 KB
• Volume: 60
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.19770600802

✦ Synopsis

Synthesis and IR. Spectroscopic Identification of Epimeric 3‐Ethinyl‐5α‐cholestan‐3‐ols

The syntheses of the 3β‐ethinyl‐5α‐cholestan‐3α‐ols 2a, 2b, 2c and of the corresponding epimeric 3α‐ethinyl‐5 α‐cholestan‐3 β‐ols 3a, 3b, 3c are described. Bands at 1000 cm^−1^ for the α‐alcohols and at 1030 cm^−1^ for the β‐alcohols are found to be useful for the IR. spectroscopic identification of epimeric 3‐ethinyl‐5α‐cholestan‐3‐ols.