One-pot synthesis of 2,3-disubstituted naphtho[2,3-b]thiophene-4,9-diones from a 2-sulfenyl-1,4-naphthoquinone and enamines

Authors
Kobayashi, K Furuta, Y Matsuoka, H Uchida, M Morikawa, O Konishi, H
Citation
K. Kobayashi et al., One-pot synthesis of 2,3-disubstituted naphtho[2,3-b]thiophene-4,9-diones from a 2-sulfenyl-1,4-naphthoquinone and enamines, CHEM LETT, (6), 1999, pp. 503-504
Citations number
26
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY LETTERS
ISSN journal
03667022 → ACNP
Issue
6
Year of publication
1999
Pages
503 - 504
Database
ISI
SICI code
0366-7022(199906):6<503:OSO2NF>2.0.ZU;2-Y
Abstract
The title naphthothiophenequinone derivatives were generally synthesized in one-pot using a tandem conjugate addition-cyclization sequence between 2-[ 2-(ethoxycarbonyl)ethyl]thio-1,4-naphthoquinone and enamines, derived from cyclic and acyclic ketones.