Synthesis of alpha-alkylidene-beta-ethoxycarbonyl cyclopentanones and -gamma-butyrolactones

Citation
F. Beji et al., Synthesis of alpha-alkylidene-beta-ethoxycarbonyl cyclopentanones and -gamma-butyrolactones, SYN COMMUN, 30(21), 2000, pp. 3947-3954
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
30
Issue
21
Year of publication
2000
Pages
3947 - 3954
Database
ISI
SICI code
0039-7911(2000)30:21<3947:SOACA->2.0.ZU;2-F
Abstract
Synthesis of (E,Z)-alpha-Alkylidene-beta-ethoxycarbonyl cyclopentanones 5 a nd(E,Z)-alpha-alkylidene-gamma-butyrolactones 7 by condensing phosphonates 3 or 6 with a variety of aldehydes in the presence of aqueous potassium car bonate (6-10M) as base is reported.