Реферат: Selective hydrogenation of natural carvone to industrially valuable dihydrocarvone was carried out at 100 degrees C under hydrogen pressure over a 1.9 wt.% Au/TiO2 catalyst. The gold catalyst has demonstrated high activity as well as stereo- and chemoselectivity in conjugated C=C double bond hydrogenation with predominant formation of trans-dihydrocarvone. The catalytic activity and trans- to cis-isomers ratio were shown to strongly depend on the solvent. In a range of C-1-C-3 alcohol solvents both catalytic activity and trans- to cis-dihydrocarvone ratio increased following the order: 2-propanol < ethanol < methanol. The total selectivity to dihydrocarvone 62% was achieved at a nearly complete carvone conversion (90%) after 13 h in the case of methanol, with the trans- to cis-dihydrocarvone ratio being about 1.8. Based on the transition state theory a quantitative description of trans- to cis-dihydrocarvone ratio variations indifferent solvents was made. (C) 2014 Elsevier B.V. All rights reserved.

Библиографическая ссылка: Demidova Y.S. , Suslov E.V. , Simakova O.A. , Simakova I.L. , Volcho K.P. , Salakhutdinov N.F. , Murzin D.Y.
Selective carvone hydrogenation to dihydrocarvone over titania supported gold catalyst
Catalysis Today. 2015. V.241. P.189-194. DOI: 10.1016/j.cattod.2014.03.053 WOS Scopus РИНЦ

Даты:

Опубликована в печати:

1 мар. 2015 г.

Идентификаторы:

Web of science	WOS:000345994300004
Scopus	2-s2.0-84949123898
РИНЦ	41765448
OpenAlex	W2056298581

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