CHROMENES AND CHROMANONES .1. THE BIRCH REDUCTION OF COUMARINS AND 2H-CHROMENES

Authors
ANIOL M LUSIAK P WAWRZENCZYK C
Citation
M. Aniol et al., CHROMENES AND CHROMANONES .1. THE BIRCH REDUCTION OF COUMARINS AND 2H-CHROMENES, Heterocycles, 38(5), 1994, pp. 991-1000
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Heterocycles → ACNP
ISSN journal
03855414
Volume
38
Issue
5
Year of publication
1994
Pages
991 - 1000
Database
ISI
SICI code
0385-5414(1994)38:5<991:CAC.TB>2.0.ZU;2-8
Abstract
The reduction of coumarin, 4-methylcoumarin, 2,2-dimethyl-2H-chromene and 2,2,4-trimethyl-2H-chromene with sodium or lithium in liquid ammon ia with the presence or without donor of protons was carried out. The formation of phenolic products was observed when a limited amount of a lcohol as a proton donor was present in the reaction medium. In the ex periments with excess of alcohol the products with a partially reduced benzene ring were formed.