Study on the reaction of cis-1-acetyl-2-aryl-6,6-dimethyl-5,7-dioxo-spiro-[2,5]-4,8-octadiones with methanol

Authors
Cao, WG Ding, WY Chen, YL Gao, JS
Citation
Wg. Cao et al., Study on the reaction of cis-1-acetyl-2-aryl-6,6-dimethyl-5,7-dioxo-spiro-[2,5]-4,8-octadiones with methanol, SYN COMMUN, 30(24), 2000, pp. 4531-4541
Citations number
5
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
30
Issue
24
Year of publication
2000
Pages
4531 - 4541
Database
ISI
SICI code
0039-7911(2000)30:24<4531:SOTROC>2.0.ZU;2-A
Abstract
Cis-1-acetyl-2-aryl-6,6-dimethyl-5,7-dioxo-spiro-[2,5]-4,8-octadiones 3a-d (X=p-CH3, p-Cl, H, p-NO2) reacted with anhydrous methanol in a sealed tube at 80 degreesC to form trans, cis-alpha -carbomethoxy-beta-(alpha'-methoxy- alpha'-aryl)-gamma -methoxy-gamma -methyl-gamma -butyrolactones 4a-d and ci s,cis-alpha-alpha -carbomethoxy-beta-(alpha'-methoxy-alpha'-aryl)-gamma -me thoxy-gamma -methyl-gamma -butyrolactones 5a-d in good yield.