Abstract
A method has been developed for the synthesis of 3-(3,3-dichloroallyl)-4-hydroxycoumarin and 2-thioxo-3-(3,3-dichloroallyl)-4-hydroxy-2H-chromene, and certain conversions of these compounds have been studied. They undergo acid hydrolysis readily, forming (respectively) 3-(4-hydroxy-3-coumarin)- and 3-(2-thioxo-4-hydroxy-2H-chromene-3)propionic acids; these compounds are converted to the corresponding lactones by the action of acetic anhydride.
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References
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Erevan State University, Erevan 375049. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 48–51, January, 1997.
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Avetisyan, A.A., Aleksanyan, I.L. & Alvandzhyan, A.G. Synthesis and certain conversions of 3-(3,3-dichloroallyl)-4-hydroxycoumarin. Chem Heterocycl Compd 33, 39–42 (1997). https://doi.org/10.1007/BF02290744
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DOI: https://doi.org/10.1007/BF02290744