Stereoselective syntheses of unnatural steroidal C(20R) aldehydes by ionic hydrogenation of C-20 tertiary alcohols

TitleStereoselective syntheses of unnatural steroidal C(20R) aldehydes by ionic hydrogenation of C-20 tertiary alcohols
Publication TypeJournal Article
Year of Publication2006
AuthorsShingate, BB, Hazra, BG, Pore, VS, Gonnade, RG, Bhadbhade, MM
JournalTetrahedron Letters
Volume47
Issue52
Pagination9343-9347
Date PublishedDEC
Type of ArticleArticle
ISSN0040-4039
Keywords1, 3-dithiane, ionic hydrogenation, oxidative hydrolysis, stereoselective synthesis, unnatural C-20 aldehydes
Abstract

Syntheses of three unnatural steroidal C(20R) aldehydes have been realised from 16-dehydropregnenol one acetate. The salient feature of the synthesis is the ionic hydrogenation of C-20 tertiary alcohols leading to the formation of the C(20R) unnatural isomer with complete stereoselectivity. Oxidative hydrolysis of the dithiane moiety furnished the C(20R) aldehydes. (c) 2006 Elsevier Ltd. All rights reserved.

DOI10.1016/j.tetlet.2006.10.116
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)2.347
Divison category: 
Center for Material Characterization (CMC)
Organic Chemistry
Physical and Materials Chemistry