期刊
ACS CENTRAL SCIENCE
卷 3, 期 5, 页码 444-448出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscentsci.7b00075
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资金
- Samsung Foundation through the Samsung Scholarship program
- National Science Foundation [DMR-1452612]
- Department of Energy for funding through the Office of Basic Energy Sciences [DE-SC0016214]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1452612] Funding Source: National Science Foundation
Despite the commercial desirability of epoxide carbonylation to beta-lactones, the reliance of this process on homogeneous catalysts makes its industrial application challenging. Here we report the preparation and use of a Co(CO)(4)-incorporated Cr-MIL-101 (Co(CO)(4)cCr-MIL101, Cr-MIL-101 = Cr3O(BDC)(3)F, H2BDC = 1,4-benzenedicarboxylic acid) heterogeneous catalyst for the ring-expansion carbonylation of epoxides, whose activity, selectivity, and substrate scope are on par with those of the reported homogeneous catalysts. We ascribe the observed performance to the unique cooperativity between the postsynthetically introduced Co(CO)(4) and the site-isolated Lewis acidic Cr(III) centers in the metal organic framework (MOF). The heterogeneous nature of Co(CO)(4)CCr-MIL-101 allows the first demonstration of gas-phase continuous-flow production of beta-lactones from epoxides, attesting to the potential applicability of the heterogeneous epoxide carbonylation strategy.
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