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  • 1
    Electronic Resource
    Electronic Resource
    Synthese und Reaktionen Chinuclidin-stabilisierter Sulfene, R1R2C=SO2←N(CH2CH2)3CH (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 1687-1690 
    Details
    ISSN: 0009-2940
    Keywords: Sulfenes ; Thione S,S-dioxides ; Amine adducts ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and Reactions of Quinuclidine-Stabilized Sulfenes, R1R2C=SO2←N(CH2CH2)3CHQuinuclidine adducts of the sulfenes 3 and 10 have been isolated and have proven to be good sources for investigating the reactivity of the respective sulfenes. Water and some alcohols react with 3 as well as with “disulfene” (5) in the presence of quinuclidine (2) under formation of the corresponding (alkyl)chinuclidinium methanesulfonyl methanesulfonates 6a-f. The expected intermediate mesyl methanesulfonic acid esters could only be isolated in the case of 4. Similar results were obtained on attempted synthesis of methylsulfene. Only the noncyclic dimer 10 could be prepared, which reacts with alcohols or water forming 11a-c. The formation of “monomeric” sulfene or methylsulfene under these conditions could be ruled out by comparison with their expected hydrolysis products 8 and 13, which were synthesized separately.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230818
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  • 2
    Electronic Resource
    Electronic Resource
    Halogen-Kohlenstoff-Schwefel-Verbindungen: Zur Chemie von 1,1,1,4,4,4-Hexafluor-2-buten-2,3-bissulfenylchlorid (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 533-539 
    Details
    ISSN: 0009-2940
    Keywords: Bissulfenyl chlorides ; fluoro substituted ; 1,3-Dithioles ; 1,3,2-Dithiazoles ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Halogen-Carbon-Sulfur Compounds: Syntheses with 1,1,1,4,4,4-Hexafluoro-2-butene-2,3-bissulfenyl ChlorideThe bifunctional bissulfenyl chloride 3 is obtained by chlorination of the dithiete 1 or tetrathiocine 2. By excessive chlorination the saturated bissulfenyl chloride 4 is formed. 3 reacts with primary amines to yield the 1,3,2-dithiazoles 5a-e, whereas by reactions with active methylene compounds like ketones or β-dicarbonyls the compounds 7-14 are obtained with HCl elimination. 13 as well as 14 are converted into the carboxylic acid 15 from which the 1,3-dithiole 17 is obtained by decarboxylation. 3 reacts with disulfene to form tetrakis-(trifluoromethyl)tetrathiafulvalene as well as 4,4′,5,5′-tetrakis(trifluoromethyl)-2,2′-spirobi[1,3-dithiole] (18), whose crystal structure has been determined.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270312
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