Reduction of Menthone with Isopropanol in the Presence of Palladium on Sibunit (ICT-3-31) Full article
| Journal |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2018, Volume: 10, Number: 4, Pages: 294-300 Pages count : 7 DOI: 10.1134/s2070050418040074 | ||||
| Tags | palladium on sibunit, hydrogen transfer reaction, reduction of ketones, menthone, menthol, dehydration, dehydrogenation | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0001 |
Abstract:
The catalytic properties of the industrial “palladium on sibunit” catalyst (ICT-3-31, 0.5 wt % Pd) were studied in the reduction of menthone into menthol. Menthone was reduced both at 250 and 350°C using isopropanol as an H-donor under the conditions of the hydrogen transfer reaction (HTR). For comparison, a noncatalytic reaction was performed under the same conditions. At 350°C the conversion of menthone was the same (61–62%) in the presence of the catalyst and without it. In the reaction with the catalyst, the selectivity on the desired product menthol decreased considerably (from 98% down to 23%), and the amount of the by-products increased (from 2 up to 77% based on changed menthone). When the temperature of the catalytic reaction was lowered to 250°C, the reduction selectivity increased to 42%, but the conversion of menthone decreased to 10%. All the products of menthone conversion were identified and pathways of their formation suggested. At 250–350°C the carbon support sibunit catalyzed the dehydration of menthone, which hindered the satisfactory yields of the target alcohol. Other side reactions catalyzed by ICT-3-31 were dehydrogenation into p-menthenes and their further aromatization resulted in the formation of substituted benzenes—p-cymene and thymol. ICT-3-31 can be effectively used in HTR, if more reactive organic substrates are involved in the reaction below 200–250°C or stronger H-donors are applied.
Cite:
Philippov A.A.
, Chibiryaev A.M.
Reduction of Menthone with Isopropanol in the Presence of Palladium on Sibunit (ICT-3-31)
Catalysis in Industry. 2018. V.10. N4. P.294-300. DOI: 10.1134/s2070050418040074 WOS Scopus РИНЦ OpenAlex
Reduction of Menthone with Isopropanol in the Presence of Palladium on Sibunit (ICT-3-31)
Catalysis in Industry. 2018. V.10. N4. P.294-300. DOI: 10.1134/s2070050418040074 WOS Scopus РИНЦ OpenAlex
Original:
Филиппов А.А.
, Чибиряев А.М.
Восстановление ментона изопропанолом в присутствии палладия на сибуните (ИКТ-3-31)
Катализ в промышленности. 2018. Т.18. №3. С.26-32. DOI: 10.18412/1816-0387-2018-3-26-32 РИНЦ AN OpenAlex
Восстановление ментона изопропанолом в присутствии палладия на сибуните (ИКТ-3-31)
Катализ в промышленности. 2018. Т.18. №3. С.26-32. DOI: 10.18412/1816-0387-2018-3-26-32 РИНЦ AN OpenAlex
Dates:
| Submitted: | Feb 14, 2018 |
| Published print: | Oct 1, 2018 |
| Published online: | Jan 14, 2019 |
Identifiers:
| Web of science: | WOS:000455594600005 |
| Scopus: | 2-s2.0-85060148710 |
| Elibrary: | 38662847 |
| OpenAlex: | W2804826977 |