Synthesis

Copper (II) acetate/1, 4-diphenyl-1, 4-diazabuta-1, 3-diene catalyzed Sonogashira cross-coupling of aryl halides with terminal alkynes under aerobic and solvent-free …

CL Deng, YX Xie, DL Yin, JH Li

文献索引：Deng, Chen-Liang; Xie, Ye-Xiang; Yin, Du-Lin; Li, Jin-Heng Synthesis, 2006 , # 20 p. 3370 - 3376

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被引用次数: 17

摘要

Abstract The Sonogashira cross-coupling of aryl halides with terminal alkynes catalyzed by an inexpensive copper (II) acetate/1, 4-diphenyl-1, 4-diazabuta-1, 3-diene [Cu (OAc) 2/DAB- Ph] catalytic system is reported. A series of ligands, including diazabutadiene systems, N, N- dimethylglycine, l-proline, ethylenediamine, and phosphines, were evaluated, and 1, 4- diphenyl-1, 4-diazabuta-1, 3-diene provided the best results. In the presence of copper (II) ...