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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 115 (1984), S. 1065-1070 
    ISSN: 1434-4475
    Keywords: Diaryl-2-cyclohexen-1-ones ; Ring expansion reactions ; Cyclooctadienones ; Diaryl-α-tetralone ; Synthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Bei der Reaktion von β-Keto-ester1 a mit Dimethyl-acetylendicarboxylat wurden unter Ringerweiterung substituierte Cyclooctadienone erhalten. DieMichael-Reaktion der Titelverbindung1 mit ungesättigten Ketonen ergab Addukte, von denen einige weitere Cyclisierungsreaktionen eingingen. Es wird ein neuer Weg zum α-Tetralonsystem10 über die Cyclisierung des intermediärenMichael-Addukts9 beschrieben.
    Notes: Abstract When β-keto-ester1 a was reacted with dimethyl acetylenedicarboxylate ring expansion occurred to give substituted cyclooctadienones.Michael reactions of the title compounds1 with unsaturated ketones gave adducts, some of which underwent further cyclization reactions. A new route to α-tetralone ring system10 via cyclization of the intermediateMichael adduct9 is described.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 115 (1984), S. 581-585 
    ISSN: 1434-4475
    Keywords: Symmetrical bis-Mannich bases ; Bis(morpholinomethyl-γ-piperidones ; 3,6-Diazatricyclo[4.3.1.13,8]undecanone ; Nitrogen heterocycles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Doppel-Mannichreaktion der Titelverbindung1 ergab mit Morpholinacetat in Ethanol die symmetrische Bis-Base2, in Essigsäure erhielt man jedoch die Vinyl-keton-base3. Die Reaktionen von3 mit Morpholin, Piperidin, Thiophenol und Dimethylphosphit wurden untersucht. DieMannich-Reaktion von2 mit primären Aminen ergab di-basisch substituierte γ-piperidone6a-b. Verbindung1 reagiert mit Ethylendiamin und Formaldehyd unter Ausbildung eines Diaza-tricyclischen Systems7.
    Notes: Abstract DoubleMannich reaction of the title compound1 with morpholine acetate in ethanol gave the symmetrical bis-base2, whereas such reaction in acetic acid afforded the vinyl-ketonic base3. Reactions of3 with morpholine, piperidine, thiophenol and dimethyl phosphite were investigated.Mannich reaction of2 with primary amines gave di-basically substituted γ-piperidones6a-b. Compound1 reacts with ethylenediamine and formaldehyde to give the diazatricyclic system7.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 331 (1989), S. 999-1001 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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