Journal
GREEN CHEMISTRY LETTERS AND REVIEWS
Volume 2, Issue 1, Pages 53-55Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17518250903002343
Keywords
2-aryloxyacetophenones; 2-cinnamoyloxyacetophenones; 2-hydroxy dibenzoylmethanes; 2-hydroxybenzoylcinnamoylmethanes; Baker-Venkataraman rearrangement
Funding
- M.D.University, Rohtak
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Baker-Venkataraman rearrangement of 2-aryloxyacetophenones and 2-cinnamoyloxyacetophenones to 2-hydroxydibenzoylmethanes and 2-hydroxybenzoylcinnamoylmethanes is the key step in the synthesis of flavones and 2-styrylchromones, a class of naturally occurring compounds and several other benzofuranone derivatives. A very simple and highly efficient eco-friendly procedure for Baker-Venkataraman rearrangement has now been developed which involves the grinding of 2-aryloxyacetophenones/2-cinnamoyloxyacetophenones with pulverized potassium hydroxide in a mortar by a pestle and avoids the use of organic solvents at any stage of the reaction.
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