期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 81, 期 9, 页码 3629-3637出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.6b00280
关键词
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资金
- Petroleum Research Foundation [52184-ND1]
- National Science Foundation [CHE-1363105]
- Stone Family
- National Science Foundation (NSF) [CHE-1352663]
- Tartar
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1363105] Funding Source: National Science Foundation
The mechanistic exploration and an expanded experimental discussion of the organocatalyzed, asymmetric Pfau-d'Angelo reaction by exploiting a bifunctional 1 degrees amine thiourea catalyst system is disclosed. Notable breadth in substrate scope has been demonstrated on both the cyclic ketone moiety and the alpha,beta-unsaturated electrophile. Exploration into the matched and mismatched selectivity of this process with a ketone containing pre-existing stereocenters has been demonstrated. Computational analyses of the reaction mechanism are reported. In concert with kinetic isotope effect (KIE) experiments, these computational results provide a detailed understanding of the likely mechanism, including the aspects of the organocatalyst scaffold that are critical for stereoselectivity.
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