Synthesis and transformations of 1,3-dithiol-2-ylideneisopropylidene malonates |
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| Authors: | Ya N Kreitsberga é V Vilyuma V Yu Khodorkovskii O Ya Neiland |
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| Institution: | (1) Riga Polytechnical Institute, 226355 Riga |
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| Abstract: | The reaction of 2-alkylthio-1,3-dithiolium salts with Meldrum's acid gave 1,3-dithiol-2-ylideneisopropylidene malonates, which were converted successively to monoethyl esters of 1,3-dithiol-2-ylidenemalonic acids and esters of 1,3-dithiol-2-ylideneacetic acid. 2-Methyl-1,3-dithiolium salts are formed when 1,3-dithiol-2-ylideneisopropylidene malonates are heated with acids.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1621–1624, December, 1988. |
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