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摘要:FIELD: chemistry.SUBSTANCE: invention relates to a method of producing alkylbenzenes of general formula,where R=H; R=Et, i-Pr or RR=CH-CH-CH-, which involves hydrogenation of styrene with hydrogen gas in the presence of a catalyst, followed by separation of end products, which is characterised by that styrene or derivatives thereof selected from ?-methylstyrene or indene are subjected to hydrogenation, and the catalyst used is nickel nanoparticles which are obtained by reducing nickel (II) chloride with lithium aluminium hydride in situ and the process is carried out at atmospheric pressure of hydrogen in a tetrahydrofuran medium at temperature of 50-60°C for 5-6 hours.EFFECT: use of the invention simplifies the method of producing compounds of the disclosed structural formula.1 cl, 3 ex
获取途径: 欧洲专利局
摘要:

FIELD: chemistry. ^ SUBSTANCE: invention relates to a method of producing norbornane derivatives of general formula where R=H, R1=CN, or R-R1=-CH=CH-CH2-. The method involves hydrogenation of the norbornene derivative with hydrazine hydrate in the presence of a catalyst, and is characterised by that the catalyst used is nickel nanoparticles obtained from its nitrate (II) in situ, and the norbornene derivative used is dicyclopentadiene or 2-cyanonorbornene-5 and the process is carried out in the medium of isopropyl alcohol with molar ratio norbornene derivative: hydrazine hydrate: catalyst equal to 1:5.3-6:0.4-0.6 at temperature 80-82C for 8 hours followed by extraction of the end product. ^ EFFECT: use of the present method enables to obtain desired compounds without using hydrogen gas, expensive catalysts and complex process conditions. ^ 1 cl, 2 ex

获取途径: 欧洲专利局
RU2006142001U
2006-11-27
获取途径: 欧洲专利局
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