Morten CJ, Jamison TF. New synthetic strategies for the stereocontrolled synthesis of substituted "skipped" diepoxides.
Tetrahedron 2009;
65:6648-6655. [PMID:
20161178 DOI:
10.1016/j.tet.2009.05.074]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This report describes a number of new synthetic approaches towards methyl-substituted mono- and diepoxy alcohols that serve as substrates for endo-selective epoxide-opening cascades. The key transformations involve the manipulation of alkynes. Highlighted are the directed methylmetalation of bishomopropargylic alcohols, the bromoallylation of alkynes, and Pd-catalyzed cross-coupling between an alkenyl boronate ester and allylic bromides.
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