101986-20-3Relevant articles and documents
Synthesis of 3,5-Diaryl-6-carbethoxycyclohex-2-en-1-ones and 4,6-Diaryl-3,3a,4,5-tetrahydro-3(2H)-oxoindazoles and a Study of their Biological Activities
Jain, A. C.,Arya, Prabhat
, p. 645 - 648 (2007/10/02)
Four different chalcones (1a-d) have been subjected to Michael condensation with ethyl acetoacetate in the presence of either ethanolic piperidine or dry potassium carbonate in acetone and the resultant 3,5-diaryl-6-carbethoxy-cyclohex-2-en-1-ones (2a-d) converted into the corresponding 4,6-diaryl-3,3a,4,5-tetrahydro-3(2H)-oxoindazoles (3a-d) by heating with hydrazine hydrate in ethanolic acetic acid.These products have been characterised as acetates which are shown to exist as mixtures of 4a-d and 5a-d on the basis of their PMR data.The biological activities of 3a-d are also discussed.