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Highly-functionalised difluorinated (hydroxymethyl)conduritol analogues via the Diels–Alder reactions of a difluorinated dienophile
Andrea Arany,Patrick J. Crowley,John Fawcett,Michael B. Hursthouse,Benson M. Kariuki,Mark E. Light,Andrew C. Moralee,Jonathan M. Percy,Vittoria Salafia
Organic & Biomolecular Chemistry Pub Date : 01/21/2004 00:00:00 , DOI:10.1039/B314314G
Abstract

A difluorodienophile, synthesised using a Stille coupling reaction underwent tin(IV)-catalysed cycloaddition with three furans to afford oxa[2.2.1]bicycloheptenes in good yield. Reduction of ester and carbamate carbonyl groups and diol protection as the acetonide set the stage for palladium-catalysed hydrostannylation in two cases. Treatment of the stannanes with methyllithium triggered ring-opening to afford highly-functionalised difluorinated cyclohexenols which could be deprotected to afford (hydroxymethyl)conduritol analogues.

Graphical abstract: Highly-functionalised difluorinated (hydroxymethyl)conduritol analogues via the Diels–Alder reactions of a difluorinated dienophile
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