A novel synthesis of 4H-chromen-4-ones via intramolecular Wittig reaction

Authors
Kumar, P Bodas, MS
Citation
P. Kumar et Ms. Bodas, A novel synthesis of 4H-chromen-4-ones via intramolecular Wittig reaction, ORG LETT, 2(24), 2000, pp. 3821-3823
Citations number
31
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANIC LETTERS
ISSN journal
15237060 → ACNP
Volume
2
Issue
24
Year of publication
2000
Pages
3821 - 3823
Database
ISI
SICI code
1523-7060(20001130)2:24<3821:ANSO4V>2.0.ZU;2-X
Abstract
[GRAPHICS] The acylphosphoranes formed in a sequential manner from the reaction of the silyl eater of O-acyl(aroyl)salicylic acids and (trimethylsilyl)methylenet riphenylphosphorane undergo intramolecular Wittig cyclization on the ester carbonyl to afford the 4H-chromen-4-ones in good to excellent yields.