期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 142, 期 36, 页码 15536-15547出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c07316
关键词
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资金
- National Institutes of General Medical Sciences [R35 GM130345]
- National Science Foundation
- Japan Society for the Promotion of Science (JSPS)
- National Science and Engineering Council-Canada (NSERC)
- NIH [S10OD024998]
The rearrangement of carbon-carbon (C-C) single bonds in readily available carbocyclic scaffolds can yield uniquely substituted carbocycles that would be challenging to construct otherwise. This is a powerful and often non-intuitive approach for complex molecule synthesis. The transition-metal-mediated cleavage of C-C bonds has the potential to broaden the scope of this type of skeletal remodeling by providing orthogonal selectivities compared to more traditional pericyclic and carbocation-based rearrangements. To highlight this emerging technology, a unified, asymmetric, total synthesis of the phomactin terpenoids was developed, enabled by the selective C-C bond cleavage of hydroxylated pinene derivatives obtained from carvone. In this full account, the challenges, solutions, and intricacies of Rh(I)-catalyzed cyclobutanol C-C cleavage in a complex molecule setting are described. In addition, details of the evolution of strategies that ultimately led to the total synthesis of phomactins A, K, P, R, and T, as well as the synthesis and structural reassignment of Sch 49027, are given.
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