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  • 1970-1974  (6)
  • 1972  (6)
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  • 1970-1974  (6)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Zur Stereochemie von Allenen, I. Darstellung und optische Spaltung einer Gruppe von Allencarbonsäuren (1972)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 756 (1972), S. 112-127 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Stereochemistry of Allenes, I.  -  Preparation and Optical Resolution of a Series of Allenecarboxylic AcidsThe preparation and the optical resolution of some allenecarboxylic acids 1 are reported.
    Notes: Es werden die Darstellung und die optische Spaltung von Allencarbonsäuren 1 beschrieben.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19727560111
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  • 2
    Electronic Resource
    Electronic Resource
    Heterocyclen durch Diensynthese, IV1) Orientierung bei der Diensynthese von N-Trichloräthyliden-p-toluolsulfonamid (1972)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 762 (1972), S. 106-110 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Heterocycles by Diene Syntheses, IV1). - Orientation in the Diene Synthesis of N-Trichloroethylidene-p-toluenesulfonamideBy Diels-Alder reaction, N-trichloroethylidenetosylamide (2) yields, with 1-substituted dienes, the 6-substituted 1-tosyl-2-trichloromethyl-1,2,3,6-tetrahydropyridines 3; with 2-substituted dienes, the corresponding 4-substituted adducts are formed. The general orientation phenomena in the Diels-Alder reaction of heterodienophiles are discussed.
    Notes: Bei der Diels-Alder-Reaktion von N-Trichloräthyliden-tosylamid (2) mit 1-substituierten Dienen entstehen 6-substituierte, mit 2-substituierten Dienen dagegen 4-substituierte 1-Tosyl-2-trichlormethyl-1.2.3.6-tetrahydro-pyridin-Derivate (3). Die Orientierungsphänomene bei der Diels-Alder-Reaktion mit Heterodienophilen werden allgemein diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19727620112
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  • 3
    Electronic Resource
    Electronic Resource
    Zwei unübliche Schwefelfunktionen: Butadienylsulfoniumsalze und Schwefeldiimide (1972)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 84 (1972), S. 1154-1154 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19720842314
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  • 4
    Electronic Resource
    Electronic Resource
    Reaktionen mit N-Sulfinylverbindungen, XI1) Orientierung bei der Diensynthese von N-Sulfinyl-p-toluolsulfonamid (1972)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 762 (1972), S. 93-105 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions with N-Sulfinyl Compounds, XI1). - Orientation in the Diene Synthesis of N-Sulfinyl-p-toluene SulfonamideThe 2-substituted dienes 2 yield by Diels-Alder reaction with N-sulfinyltosylamide (3) only the 5-substituted 3,6-dihydro-1,2-thiazine 1-oxides 6. 1-tert.-Butylbutadiene (1e) and methyl vinylacrylate (1f) give with 3 only the 6-substituted adducts 4e or 4f. With 1.3-pentadiene (1d) and with the 1-arylbutadienes 1a-c the 3- or 6-substituted adducts 5 or 4 are formed, depending on the reaction temperature. The adducts of the 1-substituted dienes 1 with 3 are mixtures of diastereoisomers.
    Notes: Die 2-substituierten Diene 2 setzen sich bei der Diels-Alder-Reaktion mit N-Sulfinyl-p-toluolsulfonamid (3) nur zu den 5-substituierten 3.6-Dihydro-1.2-thiazin-1-oxiden 6 um. 1-tert.-Butyl-butadien (1e) und Vinylacrylsäuremethylester (1f) reagieren mit 3 dagegen zu den 6-substituierten Addukten 4e bzw. f, während 1.3-Pentadien (1d) sowie die 1-Aryl-butadiene 1a-c in Abhängigkeit von der Reaktionstemperatur die 3- bzw. 6-substituierten Addukte 5 bzw. 4 ergeben. Die Addukte von 3 mit den 1-substituierten Dienen 1 sind Diastereomerengemische.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19727620111
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  • 5
    Electronic Resource
    Electronic Resource
    1.3-Butadienyl-sulfoniumsalze, I. Darstellung von 1-Dialkylsulfonio-1.3-butadien-halogeniden aus 1.4-Bis-[dialkylsulfonio]-2-buten-dihalogeniden (1972)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 762 (1972), S. 111-120 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,3-Butadienylsulfonium Salts, I. - Preparation of trans-1-Dialkylsulfonio-1.3-butadiene halides from 1,4-Bis[dialkylsulfonio]-2-butene dihalides1,4-Bis[dialkylsulfonio]-2-butene dihalides 5 (synthetized by two ways) are used to prepare trans-1-Dialkylsulfonio-1,3-butadiene halides 6. The conversion of 6 to trans-1-Alkylthiodienes, in solution and by pyrolysis, is described.
    Notes: Aus den auf zwei Wegen erhältlichen 1.4-Bis-[dialkylsulfonio]-2-buten-dihalogeniden 5 werden die trans-1-Dialkylsulfonio-1.3-butadien-halogenide 6 dargestellt. Deren Übergang in trans-1-Alkylmercapto-diene in Lösung und durch Pyrolyse wird beschrieben.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19727620113
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  • 6
    Electronic Resource
    Electronic Resource
    Two Unusual Sulfur Groups: Butadienylsulfonium Salts and Sulfur Diimides (1972)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 11 (1972), S. 1106-1107 
    Details
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.197211061
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