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Phthalides and 1,3-indandiones. LII. Reactions of 3,6-dithia-3,4,5,6-tetrahydrophthalic anhydride with methyl derivatives of nitrogen-containing heterocycles

Ľ. Krasnec and P. Hrnčiar

Department of Organic Chemistry and Biochemistry, Faculty of Natural Sciences, Komenský University, 801 00 Bratislava

 

Abstract: It has been found that the condensation of 3,6-dithia-3,4,5,6-tetrahydrophthalic anhydride or phthalic anhydride with mono-, di-, and trimethyl derivatives of nitrogen-containing heterocycles gives the corresponding 2-substituted indandiones or their dithia analogs. The structure of the formed compounds has been determined on the basis of their n.m.r. and i.r. spectra. It has been found that only monoderivatives of the respective indandiones are formed.

Full paper in Portable Document Format: 281a100.pdf

 

Chemical Papers 28 (1) 100–105 (1974)

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