Bis-esters from maleic anhydrides under neutral conditions: Protection of the anhydride of the natural product cornexistin

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1996 English Publisher:Elsevier BVJournal:Tetrahedron Letters, volume 37, pages 1,967-1,970 (issn: 0040-4039,

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Authors: Stephen C. Fields; William H. Dent; F.Richard Green; Eric G. Tromiczak;

doi: 10.1016/0040-4039(96)00182-7

Bis-esters from maleic anhydrides under neutral conditions: Protection of the anhydride of the natural product cornexistin

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Abstract

Abstract Trimethylsilyldiazomethane converts maleic anhydride derivatives in alcoholic THF to bisesters. The highly acid and base sensitive natural product cornexistin was converted to its bis-methyl ester in 70–75% yield and to the mixed benzyl/methyl ester in 61% yield. The mixed ester can be converted back to cornexistin via transfer hydrogenation.

9 Research products, page 1 of 1

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