Examination of Milstein Ru-PNN and Rh-Tribi/Tetrabi dual metal catalyst for isomerization-linear-hydroformylation of C4 raffinate and internal olefins  

作　　者：Runtong Zhang Xin Yan Shao-Tao Bai Caiyou Chen Bozhao Nan Baode Ma Jialin Wen Xumu Zhang 

机构地区：[1]Academy for Advanced Interdisciplinary Studies,Guangdong Provincial Key Laboratory of Catalysis,Department of Chemistry,Southern University of Science and Technology,Shenzhen 518055,China [2]Division of Chemistry and Chemical Engineering,California Institute of Technology,Pasadena,CA 91125,United States [3]School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen 518055,China

出　　处：《Green Synthesis and Catalysis》2022年第1期40-45,共6页绿色合成与催化（英文）

基　　金：R.Zhang gratefully acknowledges the Free Exploration Fund from the Science and Technology Innovation Committee of Shenzhen(No.JCYJ20170817104824122);We are grateful for the financial support from the National Natural Science Foundation of China(No.22001113);the Guangdong Provincial Key Laboratory of Catalysis(No.2020B121201002).

摘　　要：Isomerization-linear-hydroformylation is demanding,however,not an addressed issue,for the production of value-added linear aldehydes by converting cheap and abundant internal alkenes available from bio-&petrochemical industry.In this paper,a dual metal catalysis system combining a Ru-isomerization catalyst and a Rh-linear-hydroformylation catalyst satisfying the“4S”criterions was reported for isomerization-linear-hydroformylation of C4 raffinate(mixed butenes)and internal olefins.The optimized dual metal catalyst system hydroformylated Raffinate II feed to valuable valeraldehyde in 98%linear selectivity(n:i=49),80%conversion and high activity of 1069 h^(−1)TOF whereas 96%linear selectivity(n:i=24),71%conversion and 948 h^(−1)TOF were observed using only the Rh-hydroformylation catalyst.Notably,valeraldehyde are produced in million tons scale annually for making non-toxic plasticizer DPHP.Various 2-olefins were also converted to linear aldehydes in>98%linear selectivity(n:i>49),78%-82%conversion and high activity of 802-851 h^(−1)TOF.

关 键 词：Isomerization-linear-hydroformylation Ru-PNN Dual metal catalysis RAFFINATE Internal alkenes 

分 类 号：O62[理学—有机化学]