%0 Journal Article
%T A HIGHLY EFFICIENT ONE STEP GREEN PROCEDURE FOR BAKERVENKATARAMAN REARRANGEMENT IN AQUEOUS MEDIUM Eine hocheffiziente ONE STEP GREEN VERFAHREN F¨¹R BAKERVENKATARAMAN Umlagerung in w ssrigem Medium
%A Ashish Kumar and J.K. Makrandi
%J Heterocyclic Letters
%D 2012
%I Raman Publications
%R may 28, 2012
%X A highly efficient procedure for the synthesis of 2-hydroxydibenzoylmethanes and 2- hydroxybenzoylcinnamoylmethanes is described. 2-Hydroxyacetophenones on reaction with aroyl chloride/ cinnamoyl chloride and potassium carbonate homogenized with few drops of water on microwave irradiation give required ¦Â-diketones directly. The formation of 2- aroyloxyacetophenones/ 2-cinnamoyloxyacetophenones followed by their Baker-Venkataraman rearrangement take place simultaneously in a single step. It is a green procedure as it avoids the use of organic solvents at any stage of the reaction.
%K Baker-Venkataraman rearrangement
%K 2-hydroxyacetophenones
%K 2-hydroxydibenzoylmethanes
%K 2-hydroxybenzoylcinnamoylmethanes
%K microwave irradiation
%K aqueous medium
%U http://heteroletters.org/issue7/4.html