The selective synthesis of a variety of stereopure monocyclic chlorocyclobutenes is described. These derivatives could be coupled with Grignard reagents; two dienes from coupling with vinylmagnesium bromide reacted smoothly with maleic anhydride to yield illudol-related [4 + 2] cycloadducts.
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http://dx.doi.org/10.1021/ol101559b | DOI Listing |
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