Oxidative cyclisation of 6 or 8 allyl-7-hydroxychromones: Synthesis of pyronochromones and hydroxymethyl dihydrofuranochromones

Authors
Puranik, R Rao, YJ Krupadanam, GLD
Citation
R. Puranik et al., Oxidative cyclisation of 6 or 8 allyl-7-hydroxychromones: Synthesis of pyronochromones and hydroxymethyl dihydrofuranochromones, SYN COMMUN, 29(8), 1999, pp. 1355-1367
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
29
Issue
8
Year of publication
1999
Pages
1355 - 1367
Database
ISI
SICI code
0039-7911(1999)29:8<1355:OCO6O8>2.0.ZU;2-Q
Abstract
6/8-Allyl-7-hydroxychromones (1a-d) on oxidative cyclization with DDQ in be nzene afforded pyronochromones (2a-d) while the oxidative cyclization of Ib -e with m-CPBA in CH2Cl2 gave hydroxymethyl dihydrofurano chromones (3b-e).