๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Methanolysis of 1,3-oxathiolane-2-thione: A stereospecific preparation of episulfides

โœ Scribed by Jun'ichi Uenishi; Mitsuhiro Motoyama; Yuki Kubo

Book ID
102228875
Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
397 KB
Volume
5
Category
Article
ISSN
1042-7163

No coin nor oath required. For personal study only.

โœฆ Synopsis

Potassirim carbonate. mediated methanol?isis of opticalh. actiiie ~,3-oxathiolane-2-thiones (5-membered c?clic xanthates) took place under v e p mild conditions to gii,e opticall? pure 1,2-episulfides. Also, methanol?sis of'3-[1-iiizetha,iesulfon~lox~)alk?~~-l,3-oxathiola1ie-2-thiones and 2,d-dialkyl substituted 1,3oxathiolane-2-tlzionr gave 2,3-episulfides, stereospecificall?.

๐Ÿ“œ SIMILAR VOLUMES

Radical reduction of cyclic xanthates: F
Radical reduction of cyclic xanthates: Formation of alkenes and/or 1,3-oxathiolanes from 1,3-oxathiolane-2-thiones
โœ Jun'ichi Uenishi; Takayuki Kunugi; Yuki Kubo ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 734 KB

AIBN-initiated radical reactions of 5-membered cyclic xanthates, 1,3-oxathiolane-2-thiones, with tributyltin hydride are described. Alkenes are formed at 0.025 M concentration of tributyltin hydride, whereas a higher concentration (0.25 M ) gives 1,3-oxathiolanes. A mixture of alkene and 1,3-0xathio