POLYCARBONYL HETEROCYCLES, PART IX - SYNTHESIS OF THIOPHENE-2,3-DIONEDERIVATIVES AND THEIR TRANSFORMATION TO PYRROLO[3,2-C]PYRIDINE SYSTEMS

Authors
ZALESKA B CIEZ D KLIMEK J
Citation
B. Zaleska et al., POLYCARBONYL HETEROCYCLES, PART IX - SYNTHESIS OF THIOPHENE-2,3-DIONEDERIVATIVES AND THEIR TRANSFORMATION TO PYRROLO[3,2-C]PYRIDINE SYSTEMS, Tetrahedron letters, 39(25), 1998, pp. 4581-4584
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
39
Issue
25
Year of publication
1998
Pages
4581 - 4584
Database
ISI
SICI code
0040-4039(1998)39:25<4581:PHPI-S>2.0.ZU;2-N
Abstract
Thiophene-2,3-dione derivatives 2 were prepared in the reaction of bet a-aminovinylthioamides 1 with ethyl oxalyl chloride. Treatment of comp ounds 2b,c with malonodinitrile led to the ring transformation of the thiophene-2,3-dione system to pyrrolo[3,2-c]pyridine derivatives 4b,c. (C) 1998 Elsevier Science Ltd. All rights reserved.