Issue 4, 1989
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Fused heterocycles. Part 3. Synthesis and stereochemistry of benzopyrano and benzothiapyrano-[4,3-c]pyrazoles

Gábor Tóth,   Áron Szöllösy,   Tamás Lóránd,   Tibor Kónya,   Dezsö Szabó,   András Földesi  and  Albert Lévai  

Abstract

Several tricyclic benzopyrano[4,3-c]pyrazole derivatives have been studied by 1H and 13C n.m.r. spectroscopy. They were prepared by treating 3-benzylidene-chromanones and -1-thiochromanones with semicarbazide or thiosemicarbazide: reactions which give only the cis 3-H,3a-H stereoisomers.

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Article information

DOI
https://doi.org/10.1039/P29890000319
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1989, 319-323

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Fused heterocycles. Part 3. Synthesis and stereochemistry of benzopyrano and benzothiapyrano-[4,3-c]pyrazoles

G. Tóth, Á. Szöllösy, T. Lóránd, T. Kónya, D. Szabó, A. Földesi and A. Lévai, J. Chem. Soc., Perkin Trans. 2, 1989, 319 DOI: 10.1039/P29890000319

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