Stereoselective hydrogenation of guaiacol to cis-2-methoxycyclohexanol using supported rhodium catalysts in supercritical carbon dioxide

被引：1

作者：

Yamaguchi, Aritomo ^{[1
]}

Murakami, Yuka ^{[1
]}

Yamazaki, Kiyoyuki ^{[1
]}

Shirai, Masayuki ^{[1
,2
]}

Hiyoshi, Norihito ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Chem Proc Technol, 4-2-1 Nigatake, Sendai 9838551, Japan

[2] Iwate Univ, Fac Sci & Engn, Dept Chem & Biol Sci, Chem Course, 4-3-5 Ueda, Morioka, Iwate 0208551, Japan

来源：

CATALYSIS TODAY | 2024年 / 425卷

基金：

日本学术振兴会;

关键词：

Supercritical carbon dioxide; Supported rhodium catalyst; Hydrogenation; Guaiacol; Stereoselectivity; HYDRODEOXYGENATION; LIGNIN; TRANSFORMATION; CONVERSION; BIOMASS; METALS;

D O I：

10.1016/j.cattod.2023.114356

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Selective hydrogenation of lignin-derived phenolic monomer to valuable chemicals has attracted attention and investigated well; however, stereoselective hydrogenation is required for practical applications, and is still challenging. In this study, we examined the stereoselective hydrogenation of guaiacol to cis-2-methoxycyclohexanol over supported metal catalysts in several solvents at mild reaction conditions. Rh/C in supercritical CO2 gave a higher proportion of cis-2-methoxycyclohexanol in total 2-methoxycyclohexanol compared to water solvent. Finally, guaiacol could be stereoselectively hydrogenated to cis-2-methoxycyclohexanol with the yield 83.9 % (total 2-methoxycyclohexanol yield was 95.5 %) even at 313 K for 1 h using the Rh/C catalyst in supercritical CO2 (CO2 25 MPa, H2 1.5 MPa).

引用

页数：6

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