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  • 1
    Electronic Resource
    Electronic Resource
    1,3-Butadien-2-carbonsäuren aus dem Wittig-Salz der 2-(Brommethyl) acrylsäure (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 3480-3485 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,3-Butadiene-2-carboxylic Acids Starting from the Wittig Salt of 2-(Bromomethyl)acrylic AcidThe phosphonium salt 1b from 2-(bromomethyl)acrylic acid (1a) reacts after deprotonation with the aldehydes 3 to give the 4-substituted 1,3-butadiene-2-carboxylic acids, isolated as Z-configurated methyl esters 4.
    Notes: Das Phosphoniumsalz 1b aus 2-(Brommethyl)acrylsäure (1a) reagiert nach Deprotonierung mit den Aldehyden 3 zu 4-substituierten 1,3-Butadien-2-carbonsäuren, die als Z-konfigurierte Methylester 4 isoliert werden.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791121015
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  • 2
    Electronic Resource
    Electronic Resource
    Terpene und Terpen-Derivate, IV. Diels-Alder-Reaktion von Cyclopentadien mit Geraniumsäure-Derivaten (1976)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1976 (1976), S. 1753-1756 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Terpenes and Terpene Derivatives, IV. - Diels-Alder Reaction of Cyclopentadiene with Geranic Acid DerivativesIn the Diels-Alder reaction of cyclopentadiene with the geranic acid derivatives l b -g to 2 b - g, which is important for a simple santalene synthesis, the steric effect predominates over the electronic one.
    Notes: Bei der Diels-Alder-Reaktion von Cyclopentadien mit dcn Geraniumsäure-Derivaten 1 b-g zu 2b- g, die für eine einfache Santalensynthese wichtig ist, überwiegt der sterische Effekt den elektronischen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.197619761003
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