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Open AccessArticle

Tin(IV)-Porphyrin Tetracarbonyl Cobaltate: An Efficient Catalyst for the Carbonylation of Epoxides

Department of Chemistry and Research Institute of Physics and Chemistry, Chonbuk National University, Jeonju 54896, Korea
Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science, Daejeon 34141, Korea
Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
Department of Chemistry Education, Chungbuk National University, Cheongju 28644, Korea
Authors to whom correspondence should be addressed.
Catalysts 2019, 9(4), 311;
Received: 4 March 2019 / Revised: 23 March 2019 / Accepted: 27 March 2019 / Published: 29 March 2019
(This article belongs to the Special Issue Recent Developments on Catalysis by Metalloporphyrins and Analogues)
Cationic tin(IV) porphyrins with tetracarbonyl cobaltates were synthesized, exhibiting bifunctional catalytic reactivity. The Lewis acidic tin-porphyrin center activated epoxides; concurrently, cobalt carbonyl anions efficiently opened epoxides and delivered carbonyl moieties. Thus, a series of β-lactones with a high synthetic value were obtained. This catalytic system showed excellent efficiency exceeding a turnover number of one thousand with a broad substrate scope. In addition, the presented tin porphyrin-based catalyst exhibited exclusive chemoselectivity to terminal epoxides over internal ones. The selective carbonylation of di-epoxides demonstrated the usefulness of these catalysts in the synthesis of complex molecular structures. View Full-Text
Keywords: tin-porphyrin; carbonylation; epoxide; β-lactone tin-porphyrin; carbonylation; epoxide; β-lactone
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MDPI and ACS Style

Baral, E.R.; Kim, D.; Lee, S.; Park, M.H.; Kim, J.G. Tin(IV)-Porphyrin Tetracarbonyl Cobaltate: An Efficient Catalyst for the Carbonylation of Epoxides. Catalysts 2019, 9, 311.

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