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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 2163-2170 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of N,N-Dialkylynamines and β-Acylynamines with Ethynyl (p-Tolyl) sulfone(1-Alkynyl)dialkylamines 1a-g react like the corresponding N-(1-alkynyl)anilines 1h-m with the sulfonylacetylene 2 to yield the 2-amino-5-(p-tolylsulfinyl)furans 3. Five adducts are transformed by oxidation with potassium permanganate into the corresponding 5-sulfonylfurans 4; 3a and b and the (formerly described) anilinofurans 3n and o are isomerised thermally to the maleic acid derivatives 5.
    Notes: (1-Alkinyl)dialkylamine 1a-g reagieren wie die entsprechenden N-(1-Alkinyl)aniline 1h-m mit dem Sulfonylacetylen 2 unter Bildung der 2-Amino-5-(p-tolylsulfinyl)furane 3. Fünf Vertreter werden durch Oxidation mit Kaliumpermanganat zu den entsprechenden 5-Sulfonylfuranen 4 umgewandelt; 3a und b und die (früher beschriebenen) Anilinofurane 3n und o lassen sich thermisch zu den Maleinsäure-Derivaten 5 isomerisieren.
    Additional Material: 2 Tab.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 120 (1987), S. 71-77 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The N-(1-alkinyl)anilines 8 react with sulfonylacetylenes 9 to give the 2-anilino-5-sulfinylfurans 10. The possible mechanism of this reaction, which is similar to the Pummerer reaction, is discussed.
    Notes: Die N-(1-Alkinyl)aniline 8 reagieren mit den Sulfonylacetylenen 9 unter Bildung der 2-Anilino-5-sulfinylfurane 10. Der mögliche Mechanismus dieser der Pummerer-Reaktion ähnlichen Umsetzung wird diskutiert.
    Additional Material: 2 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 833-841 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: α-Sulfinylamidines by the reaction of Ynamines with N-(Sulfinyl)-arenesulfonamidesIn spite of very different substitution the ynamines 1a-q react with the N-(sulfinyl)arenesulfonamides 2a-c to give the α-sulfinylamidines 4. In one case we succeeded to isolate both of the configuration isomers (E- and Z-4i). The structure of the sulfines 4 is confirmed by spectroscopic data and by some reactions: hydrolysis, photolysis, oxidation, and reaction with 2,3-dimethyl-1,3-butadiene of some sulfines 4 furnish the analogous methylene compounds 5 (exception 6), the 2-oxoamidines 7, and the Diels-Alder adducts 8.
    Notes: Ungeachtet einer sehr unterschiedlichen Substitution reagieren die Inamine 1a-q mit den N-(Sulfinyl)arensulfonamiden 2a-c unter Bildung der α-Sulfinylamidine 4. In einem Fall gelingt die Isolierung beider Konfigurationsisomeren (E- und Z-4i). Die Struktur der Sulfine 4 wird spektroskopisch und durch Reaktionen abgesichert: Hydrolyse, Photolyse, Oxidation und Umsetzung mit 2,3-Dimethyl-1,3-butadien einiger Sulfine 4 liefern die entsprechenden Methylenverbindungen 5 (Ausnahme 6), die 2-Oxoamidine 7 und die Diels-Alder-Addukte 8.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 2053-2057 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Cycloadditions, 13. - Reactions of Ynamines with 1,1-Bis-(phenylsulfonyl)olefinesYnamines 1 and β,β-bis(phenylsulfonyl)styrene (2) or 1,1-bis(phenylsulfonyl)ethylene (5) react by regiospecific [2 + 2] cycloaddition to give the 4,4-bis(phenylsulfonyl)-1-cyclobutenyl-amines 3 or 6, respectively. While the former spontaneously form the open-chain butadienes 4a-d by an electrocyclic ring opening, the latter are stable (6b-h) or they isomerize readily at room temperature (6a) or after warming (example 6c) to give 2,4-bis(phenylsulfonyl)-1-cyclobutenylamines 7a and c.
    Additional Material: 1 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 96 (1984), S. 308-309 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 98 (1986), S. 443-444 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 23 (1984), S. 321-322 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 25 (1986), S. 459-460 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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