๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Amine-catalyzed preparation of oxygenated derivatives of symmetric trisulfides

โœ Scribed by Mahbubeh Pourshahbaz; Mohammad Joshaghani; Ezzat Rafiee; Jahangir Shahmoradi; Fereshteh Emami; Asieh Iranpour

Publisher
Elsevier Science
Year
2009
Tongue
French
Weight
567 KB
Volume
50
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis

Bipyridinium tribromide reacts with thiols in the presence of thionyl chloride to yield symmetric trisulfide derivatives (RSS(O)SR) as the major products. Two possible mechanisms are advanced to explain the chemistry.

๐Ÿ“œ SIMILAR VOLUMES

Preparation of enantiopure 4-oxygenated
Preparation of enantiopure 4-oxygenated pipecolic acid derivatives
โœ Yves Bousquet; Paul C. Anderson; Tibor Bogri; Jean-Simon Duceppe; Louis Grenier; ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 646 KB

Two approaches to enantiopure 4-oxo-and 4-(R)-hydroxypipecolic acid derivatives from protected L-aspartic acid were developed. The first route exploits an intramolecular Michael addition on the stable enaminone 8. Hydrogenation and concomitant decarboxylation gave the 4-oxo derivative 11 which was r