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Publikováno v:
Journal of the American Chemical Society. 130:15185-15192
A general method for copper-catalyzed arylation of sp (2) C-H bonds with p K a's below 35 has been developed. The method employs aryl halide as the coupling partner, lithium alkoxide or K 3PO 4 base, and DMF, DMPU, or mixed DMF/xylenes solvent. A var
Autor:
Thomas J. Lane, Kenneth P. Quinlan
Publikováno v:
Journal of the American Chemical Society. 82:2994-2997
The acid dissociation constants were determined potentiometrically for benzimidazole, 2-methylbenzimidazole and 2-ethylbenzimidazole in solutions of ionic strength 0.16 M (NaNO/sub 3/) at4 plus or minus 1, 25 plus or minus .1, and 35 plus or minus 0.