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With the aim of obtaining potential anti-tumoural thienocarbazoles by a ring B convergent method of synthesis, o-halodiarylacetamides were prepared by copper assisted C-N coupling from 2-bromo-iodobenzene and 6-acetamido-2,3,5-trimethylbenzo[b]thiophene, prepared from the 6-acetyl compound.
o-Bromodiarylamines l were prepared by palladium-catalyzed amination of 2-bromo-iodobenzene or 6-bromobenzo[b]thiophenes, using Buchwald conditions.
o-Bromodiarylamines l were prepared by palladium-catalyzed amination of 2-bromo-iodobenzene or 6-bromobenzo[b]thiophenes, using Buchwald conditions.
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Ferreira, Isabel C.F.R.; Queiroz, Maria-João R.P.; Kirsch, Gilbert (2001). Palladium-catalyzed amination to obtain o-halodiarylamines precursors of thienocarbazoles. In 12th European Symposium on Organic Chemistry. Groningen