气候变化领域集成服务门户(CCPortal): Highly active cationic cobalt(II) hydroformylation catalysts

CCPortal

DOI	10.1126/science.aaw7742
	Highly active cationic cobalt(II) hydroformylation catalysts
	Hood D.M.; Johnson R.A.; Carpenter A.E.; Younker J.M.; Vinyard D.J.; Stanley G.G.
发表日期	2020
ISSN	0036-8075
起始页码	542
结束页码	548
卷号	367 期号:6477
英文摘要	The cobalt complexes HCo(CO)4 and HCo(CO)3(PR3) were the original industrial catalysts used for the hydroformylation of alkenes through reaction with hydrogen and carbon monoxide to produce aldehydes. More recent and expensive rhodium-phosphine catalysts are hundreds of times more active and operate under considerably lower pressures. Cationic cobalt(II) bisphosphine hydrido-carbonyl catalysts that are far more active than traditional neutral cobalt(I) catalysts and approach rhodium catalysts in activity are reported here. These catalysts have low linear-to-branched (L:B) regioselectivity for simple linear alkenes. However, owing to their high alkene isomerization activity and increased steric effects due to the bisphosphine ligand, they have high L:B selectivities for internal alkenes with alkyl branches. These catalysts exhibit long lifetimes and substantial resistance to degradation reactions. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	alkene alkyl group cobalt derivative ligand rhodium alkene carbon monoxide catalyst cation chemical reaction Article catalyst degradation hydroformylation isomerization priority journal regioselectivity
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133756
推荐引用方式 GB/T 7714	Hood D.M.,Johnson R.A.,Carpenter A.E.,et al. Highly active cationic cobalt(II) hydroformylation catalysts[J]. Science,2020,367(6477).
APA	Hood D.M.,Johnson R.A.,Carpenter A.E.,Younker J.M.,Vinyard D.J.,&Stanley G.G..(2020).Highly active cationic cobalt(II) hydroformylation catalysts.,367(6477).
MLA	Hood D.M.,et al."Highly active cationic cobalt(II) hydroformylation catalysts".367.6477(2020).