Highly Regioselective and Active Rhodium/Bisphosphite Catalytic System for Isomerization–Hydroformylation of 2-Butene |
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Authors: | Min Mo Tao Yi Cong-Ye Zheng Mao-Lin Yuan Hai-Yan Fu Rui-Xiang Li Hua Chen |
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Affiliation: | (1) Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu, 610064, China; |
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Abstract: | Abstract The formation of linear aldehyde from isomerization–hydroformylation of 2-butene represents an important subject and current task in industry. Both high activity and excellent regioselectivity were achieved in the rhodium-catalyzed 2-butene isomerization–hydroformylation with 2,2′-bis(dipyrrolylphosphinooxy)-1,1′-(±)-binaphthyl (1) as ligand. Bulky phosphite with electron-withdrawing pyrrol groups dramatically improved the selectivity of linear product, and a good yield of 90.5% aldehydes was obtained with an excellent linear aldehyde regioselectivity of 95.3% under optimized condition. |
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