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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 757-769 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1.2.4-Benzothia(IV)diazines and 1.2.5-Benzothia(IV)diazepines, Ring Enlargement of Some Chloromethyl-1.2.4-benzothia(IV)diazine 1-oxidesDiarylsulfoxides 4 react with hydrazoic acid in the presence of sulfuric acid to form 1.2.4-benzothia(IV)diazine 1-oxides 7. On treatment of 3-chloromethyl-1-aryl-1.2.4-benzothia(IV)-diazine 1-oxides 7a-d with sodium hydroxide a novel rearrangement occurs affording 1-aryl-4-oxo-4.5-dihydro-3H-1.2.5-benzothia(IV)diazepine 1-oxides 9. Reaction of 7a-d with primary amines in alcoholic solution proceeds without rearrangement.
    Notes: Diarylsulfoxide 4 reagieren mit Stickstoffwasserstoffsäure in Gegenwart von Schwefelsäure zu 1.2.4-Benzothia(IV)diazin-1-oxiden 7. 3-Chlormethyl-1-aryl-1.2.4-benzothia(IV)diazin-1-oxide 7a-d erfahren unter dem Einfluß von Hydroxidionen eine Ringerweiterung zu 1-Aryl-4-oxo-4.5-dihydro-3H-1.2.5-benzothia(IV)diazepin-1-oxiden 9, einem neuen heterocyclischen Ringsystem. Reaktion von 7a-d mit primären Aminen in alkoholischer Lösung führt zu normaler Substitution.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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