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Metathesis of cardanol over ammonium tagged Hoveyda-Grubbs type catalyst supported on SBA-15
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SYSNO ASEP 0480162 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Metathesis of cardanol over ammonium tagged Hoveyda-Grubbs type catalyst supported on SBA-15 Tvůrce(i) Balcar, Hynek (UFCH-W) RID, ORCID
Žilková, Naděžda (UFCH-W) RID, ORCID
Kubů, Martin (UFCH-W) RID
Polášek, Miroslav (UFCH-W) RID, ORCID
Zedník, J. (CZ)Zdroj.dok. Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 304, APR 2018 (2018), s. 127-134Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Cardanol ; Flow chemistry ; Hoveyda-Grubbs type catalyst ; Immobilized catalyst Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP GA17-01440S GA ČR - Grantová agentura ČR Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000425179000017 EID SCOPUS 85030628499 DOI 10.1016/j.cattod.2017.09.049 Anotace Cardanol (a mixture of phenols with C 15 aliphatic unsaturated chain in meta position, manufactured from cashew nut shell liquids) is an abundant and till now practically waste natural material. An important way leading to its utilization as a renewable source of valuable phenolic compounds is represented by olefin metathesis.Quaternary ammonium tagged Ru complex of Hoveyda-Grubbs type immobilized on SBA-15 mesoporous molecular sieve by non-covalent interactions was proved as a very efficient catalyst for cardanol metathesis under mild conditions (35. °C, toluene, 0.1 mol% of catalyst). The catalyst was used also in cross-metathesis of cardanol with alkenes (1-hexene, 1-heptene, 3-hexene, 4-octene) and unsaturated esters (methyl acrylate, 1,4-diacetoxybutene-2) under high yields of cross-metathesis products. The catalysts exhibited low leaching (from 0.2. ppm to 2.9. ppm Ru in products) and can be used in a continuous flow reactor (cumulative TON = 2500). Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2019
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