Highly Regioselective and Active Rhodium/Bisphosphite Catalytic System for Isomerization–Hydroformylation of 2-Butene
Autor: | Min Mo, Cong-Ye Zheng, Ruixiang Li, Hua Chen, Maolin Yuan, Haiyan Fu, Tao Yi |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Catalysis Letters. 142:238-242 |
ISSN: | 1572-879X 1011-372X |
Popis: | 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. Bulky phosphite with electron-withdrawing pyrrol groups dramatically improved the selective of linear product, and an excellent yield of 90.5% aldehydes with 95.3% regioselectivity of linear aldehyde was obtained in the Rh-catalyzed isomerization–hydroformylation of 2-butene in the presence of ligand 1. |
Databáze: | OpenAIRE |
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