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Efficient Microwave Solvent-Free Synthesis of Flavones, Chromones, Coumarins and Dihydrocoumarins
- Source :
- Letters in Organic Chemistry; December 2008, Vol. 5 Issue: 8 p607-615, 9p
- Publication Year :
- 2008
-
Abstract
- Simple, clean, environmentally friendly procedures for the solvent-free preparation of coumarins, dihydrocoumarins, flavones and chromones under microwave heating are described. Silica-supported Wells-Dawson heteropolyacid (H P2W18O62 24 H2O) was employed as catalyst. High selectivity, very good yields and short reaction times were obtained. The results are compared with those of the reactions performed under conventional heating.
Details
- Language :
- English
- ISSN :
- 15701786 and 18756255
- Volume :
- 5
- Issue :
- 8
- Database :
- Supplemental Index
- Journal :
- Letters in Organic Chemistry
- Publication Type :
- Periodical
- Accession number :
- ejs18282156