15674-95-0Relevant academic research and scientific papers
Alkylaluminium Dichloride Induced Friedel-Crafts Acylation of Unsaturated Carboxylic Acids and Alcohols
Metzger, Juergen O.,Biermann, Ursula
, p. 645 - 650 (2007/10/02)
The ethylaluminium dichloride induced Friedel-Crafts acylation of unsaturated carboxylic acids, for example 10-undecenoic acid (1a) and oleic acid (5a), and of the respective alcohols 1b and 5b with acyl chlorides and cyclic acyl anhydrides gave the corresponding long-chain β,γ-unsaturated ketones 3, 6/7, 11 and 13/14 with ω-carboxy and ω-hydroxy functions, respectively.The intramolecular cyclization of petroselinic acid chloride (17) yielded (E)-2-dodecylidenecyclohexanone (18).Catalytic hydrogenation gave the respective saturated ketones 4, 8/9, 12, 15/16 and 19.Key Words: Friedel-Crafts acylation / β,γ-Unsaturated keto carboxylic acids and alcohols
Gas Chromatography/Electron Impact Mass Spectrometry Applied to the Differentiation of the Positional Isomers of Long-chain n-Alkylcyclohexanones
Rontani, J.-F.,Giusti, G.
, p. 773 - 776 (2007/10/02)
The influence of n-butyl group position upon the fragmentation behaviour of the three isomeric n-butylcyclohexanones was studied.The different fragmentation processes are described and have been applied to the differentation of the positional isomers of long-chain n-alkylcyclohexanones.In the case of the 4-n-alkyl isomers, an interesting mechanism involving a recyclization is proposed and substantiated by deuterium labelling.
