Gas-phase pyrolysis of 1-(2-azidophenyl) imidazole

…, BAJ Clark, H McNab, CC Sommerville

Index: Blake, Alexander J.; Clark, Bernard A. J.; McNab, Hamish; Sommerville, Craig C. Journal of the Chemical Society - Perkin Transactions 1, 1997 , # 11 p. 1605 - 1608

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Abstract

Flash vacuum pyrolysis (FVP) of the azide 4 leads to imidazo [1, 2-a] benzimidazole 8 exclusively, via highly regioselective insertion of the triplet nitrene intermediate 5 into the 2- CH bond of the imidazole ring. The X-ray crystal structure and NMR spectroscopic properties of 8 are discussed in detail.