期刊
CHEMICAL SCIENCE
卷 6, 期 12, 页码 7163-7168出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sc02100f
关键词
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资金
- NSF [CHE-1464941]
- Division of Chemistry (CHE), National Science Foundation [NSF/CHE-1346572]
- Division of Materials Research (DMR), National Science Foundation [NSF/CHE-1346572]
- U.S. DOE [DE-AC02-06CH11357]
- Direct For Mathematical & Physical Scien [1346572] Funding Source: National Science Foundation
We have designed the first chiral diene-based metal-organic framework (MOF), E-2-MOF, and postsynthetically metalated E-2-MOF with Rh(I) complexes to afford highly active and enantioselective single-site solid catalysts for C-C bond formation reactions. Treatment of E-2-MOF with [RhCl(C2H4)(2)](2) led to a highly enantioselective catalyst for 1,4-additions of arylboronic acids to alpha,beta-unsaturated ketones, whereas treatment of E-2-MOF with Rh(acac)(C2H4)(2) afforded a highly efficient catalyst for the asymmetric 1,2-additions of arylboronic acids to aldimines. Interestingly, E-2-MOF.Rh(acac) showed higher activity and enantioselectivity than the homogeneous control catalyst, likely due to the formation of a true single-site catalyst in the MOF.E2-MOF.Rh(acac) was also successfully recycled and reused at least seven times without loss of yield and enantioselectivity.
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