Silver(I) complexes catalyse the intramolecular addition of trichloroacetimidates to alkynes. In the absence of a ligand, the selectivity of the reaction is dependent upon the nature of the counter-anion and solvent. The introduction of non-chelating nitrogeneous ligands suppresses competitive Brønsted acid catalysis, improving the yield and selectivity of the reaction.
银(I)配合物催化三
氯乙
亚胺酯的分子内加成反应至
炔烃。在没有
配体的情况下,反应的选择性取决于反离子和溶剂的性质。引入非螯合
氮配体抑制竞争性布朗斯台德酸催化,提高了反应的产率和选择性。