3-diene

Kinetic regularities of 2,3-dimethyl-buta-1,3-diene dimerization as a second-order reaction taking place in two parallel directions have been researched. Experimental kinetic data were obtained by gas chromatography. The activation parameters obtained for 2,3 dimethyl-buta-1,3-diene dimerization indicate that the reaction takes place in the kinetic region. Досліджено кінетичні закономірності димеризації 2,3-диметилбута-1,3-дієну як реакції другого порядку, яка відбувається за двома паралельними напрямками. Експериментальні кінетичні дані були отримані методом газохроматографічного аналізу.

The effect of reagents molar ratio and temperature, the amount of toluene as solvent and pyrogallol as inhibitor on the yield of alkylcyclohexene acids has been established at their production via Diels-Alder reaction using 2,3-dimethylbuta-1,3-diene and alkylacrylic acids. The structure and physico-chemical characteristics of the synthesized compounds have been determined.

Based on the experimental studies and mathematical modeling method, we have chosen the optimal conditions of the 2,3-dimetylbuta-1,3-diene and 2-hydroxyethylmethacrylate cyclization reaction with obtaining of 2-hydroxyethyl 1,3,4-trimethylcyclohex-3-encarboxylate.

Kinetic aspects of the reaction of 2-hydroxyethyl-1,3,4-trimethylcyclohex-3-ene-1-carboxylate obtaining have been investigated. On the basis of the obtained results the kinetics of the process has been studied by the Michaelis-Menten equation. The limiting stage of the reaction is established and its mechanism is suggested.