Direct C− H Arylation and Alkenylation of 1-Substituted Tetrazoles: Phosphine As Stabilizing Factor

…, R Lubojacky, P Senel, J Kunes, M Pour

文献索引：Spulak, Marcel; Lubojacky, Richard; Senel, Petr; Kunes, Jiri; Pour, Milan Journal of Organic Chemistry, 2010 , vol. 75, # 1 p. 241 - 244

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被引用次数: 32

摘要

Direct arylation and alkenylation of 1-substituted tetrazoles was achieved via Pd catalysis in the presence of CuI and Cs2CO3. Unlike the related reactions of imidazoles and purines, phosphine ligand was necessary to prevent the intermediate tetrazolyl-PdII species from fragmentation into the corresponding cyanamide. Various 1, 5-disubstituted tetrazoles were prepared with good to excellent isolated yields.