Selective hydrogenation of (E)-2-hexenal to (E)-2-hexen-1-ol over Co-based bimetallic catalysts |
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| Affiliation: | 1. Department of Chemistry, Bishop Heber College (Autonomous), Tiruchirappalli 600017, Tamil Nadu, India;2. UPASI Tea Research Foundation, Coonoor 643101, Tamil Nadu, India;3. Department of Chemistry, St. Berchmans College (Autonomous), Mahatma Gandhi University, Changanaserry 686101, Kerala, India;4. Department of Chemistry, College Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;1. College of Bio Science and Engineering, Hebei University of Science and Technology, No. 70 Yuhuadonglu, Shijiazhuang, Hebei 050018, PR China;2. Shijiazhuang Academy of Agricultural and Forestry Science, No. 70 Shenglibeilu, Shijiazhuang, Hebei 050000, PR China;3. College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 40, No. 17 Qinghuadonglu, Haidian, Beijing 100083, PR China;1. Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan;2. Department of Citrus Research, National Institute of Fruit Tree Science, Okitsunakacho, Shimizu, Shizuoka 424-0292, Japan;1. Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China;2. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, PR China;3. Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan, Yunnan 678000, PR China |
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| Abstract: | Hydrogenation of (E)-2-hexenal was carried out in a liquid phase using Co-based bimetallic catalysts (M–Co/Al2O3, M=Pd, Pt, Ru, Rh, Sn, Fe, or Cu). Pd–Co/Al2O3 showed the highest activity among the catalysts tested and catalyzed the hydrogenation of CC bond predominantly to produce hexanal and 1-hexanol. Pt–Co/Al2O3 was more active than monometallic Co/Al2O3 for the hydrogenation of CO bond. The excellent result, 92% selectivity to (E)-2-hexen-1-ol formation at 90% conversion, was obtained by the hydrogenation over Pt–Co/Al2O3 bimetallic catalyst. No improved activities were observed for the other bimetallic catalysts. |
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