Unusual ring contraction of 3H-pyrano[2,3-c] quinolin-5(6H)-ones to furo[2,3-c]quinolin-4(5H)-ones

Authors
Majumdar, KC Kundu, AK Biswas, P
Citation
Kc. Majumdar et al., Unusual ring contraction of 3H-pyrano[2,3-c] quinolin-5(6H)-ones to furo[2,3-c]quinolin-4(5H)-ones, HETEROCYCLE, 51(3), 1999, pp. 471-474
Citations number
34
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLES
ISSN journal
03855414 → ACNP
Volume
51
Issue
3
Year of publication
1999
Pages
471 - 474
Database
ISI
SICI code
0385-5414(19990301)51:3<471:URCO3Q>2.0.ZU;2-H
Abstract
A number of 1-aryloxymethyl-3H-pyrano[2,3-c]quinolin-5(6H)-ones (1a-h) on h eating in N,N-diethylaniline for 8 h afforded 1-aryloxymethyl-2-methyl-furo [2,3-c]quinolin-4(5H)-ones (2a-h) in 66-79 % yields.