20688-29-3Relevant articles and documents
Bis-esters from maleic anhydrides under neutral conditions: Protection of the anhydride of the natural product cornexistin
Fields, Stephen C.,Dent III, William H.,Green III, F. Richard,Tromiczak, Eric G.
, p. 1967 - 1970 (1996)
Trimethylsilyldiazomethane converts maleic anhydride derivatives in alcoholic THF to bis-esters. 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.
REDUCTION D'α,α'-DIBROMOORTHOXYLENES PAR LES SELS CHROMEUX : GENERATION FACILE D'ORTHOQUINODIMETHANES.
Stephan, D.,Gorgues, A.,le Coq, A.
, p. 5649 - 5652 (1984)
α,α'-Dibromoorthoxylenes undergo a very fast reductive elimination on treatment with chromous chloride, affording the reactive intermediate orthoquinodimethanes which evolve into spiroorthoxlylenes 2 or may be trapped with dienophiles (adducts 3 and 4).Some attempts in the field of anthracycline precursors are reported.
Thiophene Analogues of the Alkaloids. Part 6. Synthesis of Thiophene Analogues of Some 1-Benzylisoquinolines.
Huddleston, Patrick R.,Barker, John M.,Stickland, Barbara,Wood, Michael L.,Guindi, Laila H. M.
, p. 1871 - 1890 (2007/10/02)
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