Lanier ML, Kasper AC, Kim H, Hong J. Synthesis of α,α'-trans-oxepanes through an organocatalytic oxa-conjugate addition reaction.
Org Lett 2014;
16:2406-9. [PMID:
24724535 PMCID:
PMC4018174 DOI:
10.1021/ol500773w]
[Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
![]()
Oxepanes
are found in a wide range of natural products; however,
they are challenging synthetic targets due to enthalpic and entropic
barriers. Organocatalytic oxa-conjugate addition reactions promoted
by the gem-disubstituent (Thorpe–Ingold) effect
stereoselectively provided α,α′-trans-oxepanes. In addition, the potential of an organocatalytic tandem
oxa-conjugate addition/α-oxidation was demonstrated in a rapid
generation of molecular complexity. These organocatalytic oxa-conjugate
addition reactions would provide powerful tools for the synthesis
of natural products that contain highly functionalized oxepanes.
Collapse