Heterocyclization of compounds containing diazo and cyano groups. 2. Synthesis and recyclization of 4-substituted 5-amino-1,2,3-thiadiazoles (in Russian)
Journal Article
·
· Chem. Heterocycl. Compd. (Engl. Transl.); (United States)
The reaction of carbonyl derivatives of diazoacetonitrile with hydrogen sulfide in the presence of triethylamine yields 4-substituted 5-amino-1,2,3-triadiazoles. Under analogous conditions, hydrogen selenide and ethyl mercaptan reduce the starting diazo compounds to hydrazones. Thiadiazoles are recyclized to 4-substituted 5-mercapto-1,2,3-triazoles by the action of bases.
- Research Organization:
- S. M. Kirov Urals Polytechnical Institute, Sverdlovsk, USSR
- OSTI ID:
- 6164307
- Journal Information:
- Chem. Heterocycl. Compd. (Engl. Transl.); (United States), Journal Name: Chem. Heterocycl. Compd. (Engl. Transl.); (United States) Vol. 22:5; ISSN CHCCA
- Country of Publication:
- United States
- Language:
- Russian
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Nucleophilic reactions at a Vinylic Center. XVII. formation of derivatives of 1,3,4-thiadiazole and 1,3,4-oxadiazole in the reaction of 2,2-dichlorovinyl Sulfones with thiosemicarbazide and Semicarbazide
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Sat Oct 31 23:00:00 EST 1987
· Chem. Heterocycl. Compd. (Engl. Transl.); (United States)
·
OSTI ID:6909073
Heterocyclization of compounds containing diazo and cyano groups. 4. Reactions of 2-diazo-2-cyanoacetic acid amides with P/sub 4/S/sub 10/ and the Lawesson reagent. Synthesis and recyclization of 5-amino-1,2,3-thiadiazole-4-carbothioamides
Journal Article
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Mon Nov 30 23:00:00 EST 1987
· Chem. Heterocycl. Compd. (Engl. Transl.); (United States)
·
OSTI ID:7160060
Nucleophilic reactions at a Vinylic Center. XVII. formation of derivatives of 1,3,4-thiadiazole and 1,3,4-oxadiazole in the reaction of 2,2-dichlorovinyl Sulfones with thiosemicarbazide and Semicarbazide
Journal Article
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Fri Aug 01 00:00:00 EDT 1986
· J. Org. Chem. USSR (Engl. Transl.); (United States)
·
OSTI ID:6952844
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ACETONITRILE
ACTIVATION ENERGY
ALKYLATION
AMIDES
AMINES
ATOMIC MODELS
AZOLES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPUTERIZED SIMULATION
DEHYDROCYCLIZATION
DIAZO COMPOUNDS
ENERGY
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDRAZONES
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INFRARED SPECTRA
IODINATED ALIPHATIC HYDROCARBONS
KINETICS
MATHEMATICAL MODELS
MECHANICS
MOLECULAR MODELS
MOLECULAR ORBITAL METHOD
NITRILES
NMR SPECTRA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTUM MECHANICS
REACTION KINETICS
SELENIUM COMPOUNDS
SELENIUM HYDRIDES
SIMULATION
SPECTRA
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
THIADIAZOLES
THIOLS
TRIAZOLES
ULTRAVIOLET SPECTRA
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ACETONITRILE
ACTIVATION ENERGY
ALKYLATION
AMIDES
AMINES
ATOMIC MODELS
AZOLES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPUTERIZED SIMULATION
DEHYDROCYCLIZATION
DIAZO COMPOUNDS
ENERGY
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDRAZONES
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INFRARED SPECTRA
IODINATED ALIPHATIC HYDROCARBONS
KINETICS
MATHEMATICAL MODELS
MECHANICS
MOLECULAR MODELS
MOLECULAR ORBITAL METHOD
NITRILES
NMR SPECTRA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTUM MECHANICS
REACTION KINETICS
SELENIUM COMPOUNDS
SELENIUM HYDRIDES
SIMULATION
SPECTRA
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
THIADIAZOLES
THIOLS
TRIAZOLES
ULTRAVIOLET SPECTRA