Robust, scalable, and highly selective spirocyclic catalysts for industrial hydroformylation and isomerization-hydroformylation

Author:

Zong Yan1ORCID,Zhang Runtong2ORCID,Ma Baode12ORCID,Peng Jianghua1,Wu Chao1,Zou Xiaomei1,Qian Yu1,Chen Gen-Qiang13ORCID,Zhang Xumu1ORCID

Affiliation:

1. Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.

2. Center for Carbon-Neutrality Catalysis and Engineering and Institute of Carbon-Neutral Technology, Shenzhen Polytechnic University, Shenzhen 518055, China.

3. Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China.

Abstract

Hydroformylation (HF) or isomerization-hydroformylation (ISO-HF) represents the most direct and practical route for producing aldehydes on an industrial scale. To resolve the issues of low activity, low linear/branched ( l/b ) ratio, and low stability in HF and ISO-HF, we herein reported a class of spirocyclic diphosphites. Notably, the ligand termed O -SDPhite afforded excellent catalytic activity and regioselectivity for the HF of various olefins. Excellent l/b ratio and an unprecedented turnover number of up to 17,620,000 were achieved. O -SDPhite was also found to be effective in the regioselective ISO-HF of the industrially related cheap and abundant C4 Raffinates to n -valeraldehyde produced on a multimillion-ton scale. The reaction with O -SDPhite, superior to that of benchmark Biphephos, was continuously operated for 41 days and afforded an average 38.6 l/b ratio (31 days and 14.7 l/b ratio for Biphephos).

Publisher

American Association for the Advancement of Science (AAAS)

Reference74 articles.

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