๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

An efficient synthesis of cholanic acids from 20-ketopregnanes

โœ Scribed by Keiichiro Fukumoto; Koji Suzuki; Hideo Nemoto; Tetsuji Kametani; Hiroko Furuyama


Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
330 KB
Volume
38
Category
Article
ISSN
0040-4020

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


An efficient, stereoselective synthesis
โœ Susanna Fehn; Klaus Burger ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 299 KB

A stereoselective synthesis of (2S,4S,5R)-4-hydroxy-5-hydroxymethylproline 1 starting from (S)-aspartic acid 2 is described. The key step of the synthesis is the [Rh(OAc)2]2 catalyzed stereospecific transformation (de >98%) of the hexafluoroacetone protected diazoketone 5 into the 4-oxoproline deriv