A convenient synthesis of tetrahydro-1Н-thieno-[3,2-с]pyrazole 4,4-dioxides

The reaction of oxidation of 3-aryl-6a-methyl-6-nitrohexahydrothieno[2,3- d ]pyrazole 4,4-dioxides by bromine was used to synthesize their derivatives 3-aryl-6a-methyl-6-nitro-3a,5,6,6a-tetrahydro-1 H -thieno[3,2- c ]pyrazole 4,4-dioxides, the structure of which was established by IR, 1 H, 13 C, 1 H...

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Published inChemistry of heterocyclic compounds (New York, N.Y. 1965) Vol. 55; no. 9; pp. 902 - 904
Main Authors Efremova, Irina E., Serebryannikova, Anna V., Lapshina, Lidiya V., Gurzhiy, Vladislav V., Ryabin, Arkadii E.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.09.2019
Springer Nature B.V
Subjects
Aromatic compounds
Bromine
Chemistry
Chemistry and Materials Science
Dioxides
Organic Chemistry
Oxidation
Pharmacy
Pyrazole
Structural analysis
pyrazolidines
oxidation
sulfolanes
pyrazolines
pyrazole 4,4-dioxides
thieno[2,3
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Summary:The reaction of oxidation of 3-aryl-6a-methyl-6-nitrohexahydrothieno[2,3- d ]pyrazole 4,4-dioxides by bromine was used to synthesize their derivatives 3-aryl-6a-methyl-6-nitro-3a,5,6,6a-tetrahydro-1 H -thieno[3,2- c ]pyrazole 4,4-dioxides, the structure of which was established by IR, 1 H, 13 C, 1 H– 13 C HMQC, 1 H– 13 C HMBC spectroscopy and X-ray structural analysis.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-019-02556-9