在我们另一项工作中需要合成一些在芳胺N上含有两个吡啶N的三齿配体。以2-乙烯吡啶与伯芳胺加成,除与4-甲氰基苯胺产生不纯的N,N-二(吡啶乙基)衍生物外,与所有其它伯芳胺都只产生N-吡啶乙基衍生物,而没有相应的N,N-二(吡啶乙基)衍生物。我们以三氟乙酸为催化剂修饰文献的方法,用过量的2-乙烯吡啶与伯芳胺加成, In our other work, we need to synthesize tridentate ligands containing two pyridine Ns on arylamine N. The addition of 2-vinylpyridine to the primary aromatic amine produces N-pyridine only with impure N, N-bis (pyridylethyl) derivatives with 4-cyanocyanilide and all other primary aromatic amines Ethyl derivative without the corresponding N, N-bis (pyridylethyl) derivative. We trifluoroacetic acid as a catalyst modified literature method, with an excess of 2-vinylpyridine and primary aromatic amine addition,