Synthesis of substituted octahydrochromeno[3,2-<Emphasis Type="Italic">i</Emphasis>]quinazoline-2(1<Emphasis Type="Italic">H</Emphasis>)-thiones |
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| Authors: | S I Filimonov S A Filimonova A S Shashkov S I Firgang G A Stashina |
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| Institution: | (1) K. D. Ushinsky Yaroslavl State Pedagogical University, 108 ul. Respublikanskaya, 150000 Yaroslavl, Russian Federation;(2) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation |
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| Abstract: | Condensation of 8-arylidenehexahydroquinazoline-2-thiones with di- and trihydroxybenzenes affords the new heterocyclic system,
viz., octahydrochromeno3,2-i]quinazoline-2(1H)-thiones, in which the substituents in both the chromane and quinazoline rings can be varied over a wide range.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1456–1460, June, 2005. |
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| Keywords: | resorcinol pyrogallol acid catalysis hexahydroquinazoline-2-thiones dihydrobenzopyran (chromane) two-dimensional NMR spectroscopy |
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