Crowley, Patrick J and Fawcett, John and Kariuki, Benson M and Moralee, Andrew C and Percy, Jonathan and Salafia, Vittoria (2002) Basic and reductive sulfone-directed ring-opening reactions of difluorinated oxa[2.2.1]bicycloheptanes. Organic Letters, 4 (23). pp. 4125-4128. ISSN 1523-7060Full text not available in this repository. (Request a copy from the Strathclyde author)
Phenylsulfenyl chloride reacts with racemic endo Diels-Alder adduct 4 (DEC ) CONEt2) to afford lactone 8, which can be reduced and protected in a series of high-yielding steps. Key sulfone 10 can be ring opened under strong base conditions to afford vinyl sulfone 11. Attempted desulfonation resulted in the formation of a monofluoroalkene, but a direct desulfonation/eliminative ring opening with strain relief delivered highly functionalized monocyclic species 16.
|Keywords:||strain relief, monofluoroalkene, ring opening, Chemistry, Biochemistry, Organic Chemistry, Physical and Theoretical Chemistry|
|Subjects:||Science > Chemistry|
|Department:||Faculty of Science > Pure and Applied Chemistry|
|Depositing user:||Pure Administrator|
|Date Deposited:||04 Apr 2012 13:50|
|Last modified:||06 Aug 2016 00:11|