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The Route of Action of Sodium Methoxide on 5-Arylmethylene-2-Disubstituted Amino-4-oxo-2-thiazolines
Omar, M. T.,Kasem, M. A.
, p. 1413 - 1415 (2007/10/02)
5-Arylmethylene-2-disubstituted amino-4-oxo-2-thiazolines 1a-d reacted with six and two moles of sodium methoxide to give the 2-mercaptocinnamic acid esters 6 and mixtures of 2,2-dimethoxy-4-oxothiazolidines 4 and 2,4-dioxothiazolidines 5, respectively.The intermediate mixture of the sodium salt of 5-arylmethylene-2,2-dimethoxy-4-oxothiazolidines 3 in the above mentioned transformations was established.The structures of 3, 4, 5 and 6 were based on analytical and spectral evidence.The route of 1 into 3, 4, 5 and 6 was presented and discussed.
