A series of silver complexes generated in situ from AgOSO2CF3 (AgOTf) and a range of bidentate ligands were investigated as catalysts for the intramolecular hydroamination of 4-pentyn-1-amine. A variety of P- and N-donor ligands were tested including the novel pyrazole-phosphine ligand 1-(2-(diphenylphosphino)phenyl)pyrazole. The best catalyst was formed from equimolar amounts of the P,N-donor ligand
                                    研究了由AgOSO 2 CF 3(AgOTf)和一系列双齿
配体原位生成的一系列
银配合物,作为
4-戊炔-1-胺分子内加
氢胺化的催化剂。测试了各种P-和N-供体
配体,包括新型
吡唑-
膦配体1-(2-(
二苯基膦基)苯基)
吡唑。最好的催化剂是由等摩尔量的P,N-供体
配体1-(2-(
二苯基膦基)乙基)
吡唑和AgOTf形成的,对于4-戊炔-1-的环化反应,其周转速率为129 h -1胺。