ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Addition of Aldehydes to Activated Double Bonds, XX. Syntheses of Unsymmetrical 1,4,7-TriketonesThiazolium salt catalysed additions of aldehydes to vinyl diketones (1-4, 10-12) lead to unsymmetrical 1,4,7-triketones (13-26). The vinyl diketones were obtained by addition of 2-formylnorbornene to alkyl vinyl ketones (30-32) followed by pyrolysis, the latter by the reaction of 2-cyanonorbornene with alkylmagnesium halides followed by hydrolysis and pyrolysis.
Notes:
Thiazoliumsalz-katalysierte Additionen von Aldehyden an Vinyldiketone (1-4, 10-12) führen zu unsymmetrischen 1,4,7-Triketonen (13-26). Die Vinyldiketone entstehen durch Addition von Norbornen-2-carbaldehyd an Alkylvinylketone und nachfolgende Pyrolyse. Die Alkylvinylketone (30 - 32) werden durch Reaktion des Norbornen-2-carbonitrils mit Alkylmagnesiumhalogeniden nach Hydrolyse und Pyrolyse erhalten.
Additional Material:
4 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19791120435
