1040379-13-2Relevant academic research and scientific papers
Highly regioselective isomerization - Hydroformylation of internal olefins to linear aldehyde using rh complexes with tetraphosphorus ligands
Yu, Shichao,Chie, Yu-Ming,Guan, Zheng-Hui,Zhang, Xumu
, p. 3469 - 3472 (2008)
(Figure Presented) A series of new pyrrole-based tetraphosphorus ligands were synthesized and used for Rh-catalyzed isomerization-hydroformylation of internal olefins. It was found that the substituents at the 3,3′,5, 5′-positions of the biphenyl greatly effected the linear selectivity, and the alkyl-substituted tetraphosphorus ligands gave the best results (for 2-octene, n:i up to 207, for 2-hexene, n:i up to 362).
New tetraphosphite ligands for regioselective linear hydroformylation of terminal and internal olefins
Zhang, Zongpeng,Chen, Caiyou,Wang, Qian,Han, Zhengyu,Dong, Xiu-Qin,Zhang, Xumu
, p. 14559 - 14562 (2016/02/19)
We successfully developed new tetraphosphite ligands L1-L5 and applied them to the rhodium-catalyzed hydroformylation of terminal and internal olefins. High catalytic reactivities and excellent regioselectivities for linear aldehydes were obtained in the rhodium-catalyzed hydroformylation of simple olefins (l/b ratio up to 90, 98.9% linear selectivity, 99.2% conversion) using the tetraphosphite ligand L2. And the tetraphosphite ligand L2 also displayed moderate to good linear regioselectivities for challenging substrates styrene and internal olefin 2-octene.
