A NOVEL ROUTE FOR THE PREPARATION OF XANTHONES AND CHROMANONES

Authors
VITALE AA ROMANELLI GP AUTINO JC POMILIO AB
Citation
Aa. Vitale et al., A NOVEL ROUTE FOR THE PREPARATION OF XANTHONES AND CHROMANONES, Journal of chemical research. Synopses, (2), 1994, pp. 82-83
Citations number
30
Categorie Soggetti
Chemistry
Journal title
Journal of chemical research. Synopses → ACNP
ISSN journal
03082342
Issue
2
Year of publication
1994
Pages
82 - 83
Database
ISI
SICI code
0308-2342(1994):2<82:ANRFTP>2.0.ZU;2-Y
Abstract
Simple one-pot preparations are described of chromanones, from phenoxy propiononitriles via nucleophilic addition of an aryllithium to the ni trile group and hydrolysis in situ of the formed azomethine, and xanth ones, from diphenyl ethers via a metallation-CO2 reaction sequence; bo th cyclizations are accomplished in a regiospecific manner and in the presence of acid-sensitive groups.