๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Tandem sigmatropic rearrangements and cyclizations of propargylic dialkoxy disulfides

โœ Scribed by Samuel Braverman; Tatiana Pechenick; Hugo E Gottlieb

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
157 KB
Volume
44
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

๐Ÿ“œ SIMILAR VOLUMES

Tandem rearrangement, cyclization and ar
Tandem rearrangement, cyclization and aromatization of sulfur bridged propargylic systems
โœ Samuel Braverman; Yossi Zafrani; Hugo E Gottlieb ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 109 KB

The reactivity of some novel ฯ€-conjugated bis-propargylic sulfides, sulfoxides and sulfones under basic conditions has been investigated. These compounds undergo isomerization to the corresponding diallenes, followed by a tandem cyclization and aromatization of the latter via a diradical intermediat

[2,3]Sigmatropic Rearrangements of Propa
[2,3]Sigmatropic Rearrangements of Propargylic and Allenic Systems
โœ Samuel Braverman; Marina Cherkinsky ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons โš– 18 KB ๐Ÿ‘ 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Facile preparation and rearrangement of
Facile preparation and rearrangement of allylic dialkoxy disulfides
โœ Samuel Braverman; Tatiana Pechenick ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 227 KB

Allylic dialkoxy disulfides were obtained in good yields and their reactivity has been investigated. Similarly to allylic sulfoxylates, these esters undergo double [2,3]-sigmatropic rearrangement to the appropriate vic-disulfoxides. The latter, being unstable, undergoes spontaneous rearrangement to

Base catalyzed [2,3]-sigmatropic rearran
Base catalyzed [2,3]-sigmatropic rearrangements of propargylic sulfonium and selenonium salts
โœ Samuel Braverman; Yossi Zafrani; Shai Rahimipour ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 125 KB

The synthesis and reactivity of bis-g-substituted and unsubstituted propargylic sulfonium and selenonium salts under various basic conditions have been investigated. While the former compounds reacted only by [2,3]-sigmatropic rearrangement of the corresponding sulfur ylides, the latter salts exhibi