Synthesis of novel spiro-condensed 2-amino-4H-pyrans based on 1,2-benzoxathiin-4(3H)-one 2,2-dioxide

A series of new spiro-condensed 2-amino-4 H -pyrans were synthesized by three-component interaction of 1,2-benzoxathiin-4(3 H )-one 2,2-dioxide, malononitrile, and cyclic carbonyls in moderate to high yields. This is one of the first examples of 1,2-benzoxathiin-4(3 H )-one 2,2-dioxide application i...

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Published in:Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2019-03, Vol.55 (3), p.254-260
Main Authors: Grygoriv, Galina V., Lega, Dmitry A., Zaprutko, Lucjusz, Gzella, Andrzej K., Wieczorek-Dziurla, Ewa, Chernykh, Valentine P., Shemchuk, Leonid A.
Format: Article
Language:English
Subjects:
Carbonyls
Chemistry
Chemistry and Materials Science
Dioxides
Drugstores
Malononitrile
Nitriles
Organic Chemistry
Pharmacy
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Summary:A series of new spiro-condensed 2-amino-4 H -pyrans were synthesized by three-component interaction of 1,2-benzoxathiin-4(3 H )-one 2,2-dioxide, malononitrile, and cyclic carbonyls in moderate to high yields. This is one of the first examples of 1,2-benzoxathiin-4(3 H )-one 2,2-dioxide application in multicomponent transformations.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-019-02450-4