Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5274153 | Tetrahedron Letters | 2008 | 5 Pages |
Abstract
A ZnBr2-mediated arylation of N-protected 2/3-bromomethylindoles containing an electron-deficient malonylidene unit with arenes at 80 °C led to the formation of arylated products, which on unprecedented 1,5-sigmatropic rearrangement followed by electrocyclization and subsequent aromatization with loss of diethylmalonate furnished the corresponding annulated carbazoles in reasonable yields.
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