A Metalated Porous Porphyrin Polymer with [Co(CO)₄]^- Anion as an Efficient Heterogeneous Catalyst for Ring Expanding Carbonylation.

ABSTRACT: The synthesis of β-lactones from epoxides through ring-expanding carbonylation using homogeneous catalysts has received much attention. However, homogeneous catalysts suffer from difficulty in product separation and recycling of the catalyst, limiting their industrial usage. Herein, a novel heterogeneous catalyst, [Cr-metalated porous porphyrin polymer]⁺[Co(CO)₄]^-, was prepared and used for the conversion of propylene oxide (PO) to β-butyrolactone; this catalyst presented superior catalytic activity and selectivity (99%) than our previous heterogeneous catalyst. In addition, the catalyst was readily separated from the product without significant loss of catalytic activity. A possible method to recover the original catalytic activity also was demonstrated.

SUBMITTER: Jiang J 

PROVIDER: S-EPMC6125460 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature