Chemoselective Palladium‐Catalyzed Direct C–H Arylation of 5‐Carboxyimidazoles: Unparalleled Access to Fused Imidazole‐Based Tricycles Containing Six‐, Seven‐ or Eight‐Membered Rings
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DOI: 10.1002/ejoc.201700297
Abstract: An extensive study of the chemoselective Pd-catalyzed inter- and intramolecular direct C–H arylation of N-benzylated 5-carboxyimidazoles with halides with and without CuI assistance in 1,4-dioxane as a low-polarity solvent was explored. The method was suitable… read more here.
Keywords: direct arylation; membered rings; fused imidazole; eight membered ... See more keywords