THE SYNTHESIS OF 8-ALLYL-2-STYRYLCHROMONES BY THE MODIFIED BAKER-VENKATARAMAN TRANSFORMATION

Citation
Bp. Reddy et Gld. Krupadanam, THE SYNTHESIS OF 8-ALLYL-2-STYRYLCHROMONES BY THE MODIFIED BAKER-VENKATARAMAN TRANSFORMATION, Journal of heterocyclic chemistry, 33(6), 1996, pp. 1561-1565
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
0022152X
Volume
33
Issue
6
Year of publication
1996
Pages
1561 - 1565
Database
ISI
SICI code
0022-152X(1996)33:6<1561:TSO8BT>2.0.ZU;2-L
Abstract
Substituted-2-hydroxy-3-allylacetophenones 2 react with cinnamoyl chlo rides 3 in potassium carbonate-acetone to give good yields of polyfunc tional 1-(2-hydroxy-3-allylaryl)-5-aryl-4-pente 1,3-diones 4 which exi st in their enol forms 5. These on acid catalysed cyclodehydration gav e 70-80% yields of substituted 8-allyl-2-styrylchromones 6.