Nickel-catalysed sequential amination of aryl- and heteroaryl di- and trichlorides
作者:Christophe Desmarets、Raphaël Schneider、Yves Fort
DOI:10.1016/s0040-4020(01)00730-x
日期:2001.9
Unsymmetrical 1,3-diaminobenzenes and diaminopyridines were efficiently prepared by reaction of 3-chloroanilines and chloroaminopyridines with amines via a nickel-catalysed amination. The Ni/2,2′-bipyridine catalyst is also effective for the sequential amination of aryl trichlorides. After a first selective monoamination of 1,3,5-trichlorobenzene, the obtained 3,5-dichloroanilines were subsequently transformed
通过使3-氯苯胺和氯氨基吡啶与镍通过胺催化的胺化反应有效地制备了不对称的1,3-二氨基苯和二氨基吡啶。Ni / 2,2'-联吡啶催化剂对于芳基三氯化物的顺序胺化也是有效的。在对1,3,5-三氯苯进行第一次选择性单胺化之后,随后将获得的3,5-二氯苯胺转化为新型且不对称的1,3,5-三氨基苯。