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Short Paper | Regular issue | Vol 83, No. 1, 2011, pp.163-169
Published online, 26th November, 2010
DOI: 10.3987/COM-10-12091
Palladium-Catalyzed Cyanation of Aryl Bromides Using Phosphine-Free Pyridylhydrazone Ligands

Takashi Mino,* Tomoko Koizumi, Masanori Shibuya, Kiminori Hirai, Masami Sakamoto, and Tsutomu Fujita

*Faculty of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan

Abstract

Palladium-catalyzed cyanation of aryl bromides with potassium hexacyanoferrate(II) trihydrate, K4[Fe(CN)6]·3H2O as the cyanide source gave benzonitrile derivatives using a catalytic amount of Pd(OCOCF3)2 in DMF at 110 °C with phosphine-free pyridyl-hydrazone ligand 2c in good yields.