Výsledky vyhledávání - "Wolfgang Hanefeld"

Oxidationen an Thiourethanen. 16 [1]; Elektrochemische Oxidationen. 2 [2]: Elektrochemische Oxidationen von cyclischen Dithiourethanen, analytische Peakpotentialermittlung

Autor: Wolfgang Hanefeld, Klaus Schaible

Publikováno v: Journal für praktische Chemie. 342:659-665

Oxidations on Carbamothioates. 16 [1]; Electrochemical Oxidations. 2 [2]: Electrochemical Oxidations of Carbamodithioates, Analytical Evaluation of Peak Potentials It is possible to oxidize carbamodithioates of type I to the related carbamothioates o

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https://doi.org/10.1002/1521-3897(200009)342:7<659::aid-prac659>3.0.co

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Strukturvariationen durch Reaktionen der Thiocarbonylgruppe

Autor: Wolfgang Hanefeld, Stephan Wurtz

Publikováno v: Journal für praktische Chemie. 342:554-562

Structural Variations by Reactions of the Thiocarbonyl GroupThe 2,3-dihydrothiazol-2-thiones 1a—c have been methylated to the 2-methylsulfanylthiazolium iodides 2a—c, which could be reacted with double activated CH-acidic compounds like 4-nitroph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b548e395085bb55de0d3bcb0245c49ae
https://doi.org/10.1002/1521-3897(200006)342:6<554::aid-prac554>3.0.co

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2-Thioxo-1,3-thiazepan-4-ones, a novel class of cyclic dithiourethanes with a 7-membered ring system

Autor: Harald Schütz, Wolfgang Hanefeld

Publikováno v: Journal of Heterocyclic Chemistry. 36:1167-1174

Reaction of isothiocyanates 1 with γ-thiobutyrolactone (2) in alkaline medium yielded 4-thiocarbamoylthiobutyric acids 3 after acidification, which could be cyclized to the 2-thioxo-1,3-thiazepan-4-ones 6. Additional reactions were observed with the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba83131ca054dbb914b7ac70f63f19d8
https://doi.org/10.1002/jhet.5570360509

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Iminium carbonic acid derivative salts.XII. electrophilic reactions of 2-methylthio-4,5-dihydrothiazolium iodides, 5-methyl-2-methylthiothiazolium iodides and 2-methylthio-5,6-dihydro-1,3-thiazinium iodides. partIII. With Vinylogous and Phenylogous Active Methylene Compounds

Autor: Helge Harms, Wolfgang Hanefeld

Publikováno v: Journal of Heterocyclic Chemistry. 35:49-55

3-Benzyl-2-memyltmo-4,5-dmydrothiazolium iodide (1), 5-metlyl-2-methylthio-3-phenethylthiazolium iodide (4) and 3-methyl and 3-benzyl-2-methylthio-5,6-dihydro-1,3-thiazinium iodides 7a, b were reacted with the vinylogous doubly activated CH-acidic co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7b3b89a320429b62b559edab3ae4359
https://doi.org/10.1002/jhet.5570350110

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Iminium carbonic acid derivative salts.IX. Synthesis ofN,S-containing heterobicycles fromN-protected 2-methylthio-1,3-thiazinium and 2-methylthiothiazolium salts part 1. Preparation ofN-protected 2-methylthio-1,3-thiazinium and 2-methylthiothiazolium salts and their reaction with CH-acidic compounds

Autor: Mahmoud Naeeni, Martin Schlitzer, Wolfgang Hanefeld

Publikováno v: Journal of Heterocyclic Chemistry. 33:1785-1790

N-Boc-protected 2-methylthio-1,3-thiazinium 3 and 2-methylthiothiazolium salts 4,7 obtained from the corresponding 1,3-thiazine-2-thiones and thiazolidine-2-thiones by the action of methyl iodide or trimethyloxonium tetrafluoroborate were reacted wit

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https://doi.org/10.1002/jhet.5570330639

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Iminium carbonic acid derivative salts.XI. Synthesis ofN,S-containing heterobicycles fromN-protected 2-methylthio-1,3-thiazinium and 2-methylthiothiazoüum salts. Part 3. Reaction ofN-protected 2-methylthio-1,3-thiazinium and 2-methylthiothiazolium salts with 3-amino-2-cyano-3-arylacrylonitriles

Autor: Martin Schlitzer, Wolfgang Hanefeld, Mahmoud Naeeni

Publikováno v: Journal of Heterocyclic Chemistry. 33:1903-1907

N-Boc-protected 2-memylthio-1,3-thiazinium 1 and 2-methylthiothiazolium iodides 2, 3 obtained from the corresponding 3,4,5,6-tetrahydro-2H-1,3-thiazine-2-thiones and thiazolidine-2-thiones by the action of methyl iodide were reacted with 3-armno-2-cy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e645e9b6c98c330699dbc9f7bac28737
https://doi.org/10.1002/jhet.5570330657

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