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  • 1
    Electronic Resource
    Electronic Resource
    über 1.2-Dithia-cyclopentene, XV 3-Halogen-1.2-dithiolium-Verbindungen und Verbindungen mit “positivem Halogen” (1969)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 728 (1969), S. 36-43 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: I,2-Dithia-cyclopentenes, X V1). 3-Halogeno-I,2-dithiolium-compounds and Compounds with Positive Halogen3, 5, 9, 10 have been prepared from 3-halogeno-1,2-dithiolium-compounds and compounds with positive halogen. The 3-halogeno-5-amino-1,2-dithiolium-compound 13 does not react; that is interpreted by resonance structures of 13.
    Notes: 3-Halogen-1.2-dithiolium-Verbindungen mit Chlor oder dem Phenyl-Rest in 5-Stellung reagieren mit Substanzen, die „positives Halogen“ enthalten, unter Eliminierung von elementarem Halogen zu Verbindungen vom Typ 3, 5, 9, 10. Die 3-Halogen-5-amino-1.2-dithiolium-Verbindung 13 reagiert nicht; Mesomeriebetrachtungen erklären den Befund.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19697280107
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  • 2
    Electronic Resource
    Electronic Resource
    Über 1.2-Dithia-cyclopentene, XVII1) Substitution am 1.2-Dithia-cyclopentenimin-System (1970)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 734 (1970), S. 164-172 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1.2-Dithia-cyclopentenes, XVII1) Substitution on the 1.2-Dithia-cyclopenteneimine System5-Chloro- and 5-tosyl-1.2-dithia-cyclopenteneimines (1-5, 12, 14, 19, 20) react with nucleophilic compounds in 5-position. 4 and thiourea yield the 1.2-dithiol-3-thione 24, which is alkylated at the thione group. Alkaline cleavage of 10r yields the thiophenes 37, 38, or 39.
    Notes: 5-Chlor- und 5-Tosyl-1,2-dithia-cyclopentenimine (1-5, 12, 14, 19, 20) reagieren mit nucleophilen Partnern in 5-Stellung zu den Substitutionsprodukten. 4 liefert mit Thioharnstoff das Trithion 24, das am Thion-Schwefel alkyliert wird. Alkalische Spaltung von 10r führt zum Thiophen-System (37-39).
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19707340117
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  • 3
    Electronic Resource
    Electronic Resource
    Über 1.2-Dithia-cyclopentene, XIX1) 5-Amino-3-imino-1.2-dithia-cyclopentene-(4) (1970)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 742 (1970), S. 103-106 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On 1,2-Dithiacyclopentenes, XIX1). 5-Amino-3-imino-1,2-dithia-4-cyclopentenesThe 5-amino-1,2-dithia-4-cyclopentene-3-imines 5 have been prepared from the dithiolium compounds 4 and aromatic amines.
    Notes: Die Dithiolium-Verbindungen 4 reagieren mit aromatischen Aminen zu den 5-Amino-1.2-dithia-cyclopenten-(4)-iminen-(3) 5.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19707420113
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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