Chemospecific and ligand free CuI catalysed heterogeneous N-arylation of amines with diheteroaryl halides at room temperature
作者:Sanjeev K. Verma、B. N. Acharya、M. P. Kaushik
DOI:10.1039/c0ob00859a
日期:——
A ligand free, copper-catalyzed N-arylation reaction of amines with diheteroaryl halides in heterogeneous medium at room temperature has been developed. The protocol is very effective for low boiling amines and useful for amines available in aqueous solution. The reaction gives chemospecific arylation of amines with diheteroaryl halides in the mixture monoheteroaryl halides, diheteroaryl halides and carbocyclic aryl halides. The reaction is also chemospecific with respect to arylation of aliphatic amines. Monoarylated piperazines were also synthesized at room temperature following this protocol.
我们开发了一种无配体、铜催化的 N-芳基化反应,可在室温下在异相介质中使胺与二硬脂酰卤发生反应。该方案对低沸点胺非常有效,对水溶液中的胺也很有用。在单杂芳基卤化物、二杂芳基卤化物和碳环芳基卤化物的混合物中,该反应可使胺与二杂芳基卤化物发生化学特异性芳基化反应。该反应对脂肪胺的芳基化也具有化学特异性。按照此方案,还可在室温下合成单芳基化的哌嗪。