SYNTHESIS OF CYCLOPENTATHIOPHENACETIC ACID-DERIVATIVES - REACTIVITY OF METHYL OXO-4,5-DIHYDRO-6H-CYCLOPENTA[B]THIOPHEN-4-ACETATE

Citation
A. Jilale et al., SYNTHESIS OF CYCLOPENTATHIOPHENACETIC ACID-DERIVATIVES - REACTIVITY OF METHYL OXO-4,5-DIHYDRO-6H-CYCLOPENTA[B]THIOPHEN-4-ACETATE, Journal of heterocyclic chemistry, 30(4), 1993, pp. 881-885
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
0022152X
Volume
30
Issue
4
Year of publication
1993
Pages
881 - 885
Database
ISI
SICI code
0022-152X(1993)30:4<881:SOCA-R>2.0.ZU;2-T
Abstract
Oxodihydrocyclopentathiophenacetic acids 4, 5 and 6 were synthesized f rom suitable 2- or 3-formylthiophenes. Reactivity of the carbonyl grou p or the carboxylic group of these bicyclic systems was investigated. The Beckmann rearrangement of methyl ino-4,5-dihydro-6H-cyclopenta[b]t hiophen-4-acetate 12 is an interesting route to methyl o-4,5,6,7-tetra hydrothieno[2,3-c]pyridin-4-acetate (13).