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2005 C-C bond formation O 0282 Nitrogen Ligands: The Transition Metal Catalyzed Reaction of Aryl Halides with Olefins (Mizoroki-Heck), Phenylboronic Acid (Suzuki Coupling) and Buchwald-Hartwig Amination, New Catalysts and Effect of Cocatalysts-Aryl HalideActivation. Part 1. -A variety of nitrogen ligands are tested in the palladium-catalyzed Mizoroki-Heck reaction, Suzuki cross coupling and Buchwald-Hartwig amination of aryl halides. Good results are achieved with ferrocenyl oxime-based, dimethylaminotoluene-based and acetophenone oxime-based ligands, comparable to phosphor ligands. Activation of aryl bromides as well as aryl chlorides is achieved with the new nitrogen ligands. Mizoroki-Heck reactions can readily be carried out in molten Bu4NBr as ionic liquid. -(IYER*, S.; KULKARNI, G. M.; RAMESH, C.; SATTAR, A. K.; Indian J.