Jepsen TH, Thomas SB, Lin Y, Stathakis CI, de Miguel I, Snyder SA. Harnessing quinone methides: total synthesis of (±)-vaticanol A.
Angew Chem Int Ed Engl 2014;
53:6747-51. [PMID:
24841889 PMCID:
PMC4106016 DOI:
10.1002/anie.201402858]
[Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Indexed: 11/12/2022]
Abstract
Although quinone methides are often postulated as intermediates in the biosynthesis of many polyphenolic natural products, deploying their power in a laboratory setting to achieve similar bond constructions has sometimes proven challenging. Herein, a total synthesis of the resveratrol trimer vaticanol A has been achieved through three instances of quinone methide chemistry. These operations, one of which succeeded only under very specific conditions, expediently generated its [7,5]-carbocyclic core, afforded a unique sequence for dihydrobenzofuran formation, and concurrently generated, in addition to the target molecule, a series of diastereomers reflective of many other isolates.
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