Abstract
Under the influence of UV light (HPK 125, Philips) and in presence of diethylketone, benzophenone or acetophenone ethylene and malonic acid diethylester telomerize to give even-numbered n-alkyl-n-butylmalonic acid diethyl esters, which are formed by an 1,5-rearrangement. Low pressure of ethylene favours the rearrangement reaction and the production of short-chained telomers. High concentration of the forementioned ketones effects the reversibility of Η-abstraction, which leads to low overall yields, high yields of n-butylmalonic acid diethylester and low yields of telomers produced by rearrangement reactions. The reversibility of the Η-abstraction depends upon the applicated ketone.
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