描述了新的咪唑-2-基-(氨基)甲基膦酸,膦酸酯次膦酸酯和氧化膦的有效合成。合成方法基于将磷物质亲核加成到咪唑2衍生的亚胺上。此外,还发现,将咪唑-2-基-(氨基)甲基膦酸酯与HCl或H 2 SO 4水溶液加热会导致其分解,从而导致C-P键断裂,消除含磷片段并形成相应的仲咪唑-2烷基胺。假定了裂解的机械途径。
描述了新的咪唑-2-基-(氨基)甲基膦酸,膦酸酯次膦酸酯和氧化膦的有效合成。合成方法基于将磷物质亲核加成到咪唑2衍生的亚胺上。此外,还发现,将咪唑-2-基-(氨基)甲基膦酸酯与HCl或H 2 SO 4水溶液加热会导致其分解,从而导致C-P键断裂,消除含磷片段并形成相应的仲咪唑-2烷基胺。假定了裂解的机械途径。
Abstract The paper describes solution studies of Cu(II) and Ni(II) complexes of new N-substituted imidazole-2-yl(amino)methylphosphonates. The presence of the 2-imidazole ring makes studied phosphonates very efficient ligands, with nickel(II) ions chelation much more effective than by the previously designed 4-imidazole analogs. Introduction of ortho -pyridine as additional donor in the side chain
Preparation of new imidazol-2-yl-(amino)methylphosphonates, phosphinates and phosphine oxides and their unexpected cleavage under acidic conditions
作者:Bogdan Boduszek、Tomasz K. Olszewski、Waldemar Goldeman、Kamila Grzegolec、Patrycja Blazejewska
DOI:10.1016/j.tet.2011.11.054
日期:2012.1
The efficient synthesis of new imidazol-2-yl-(amino)methylphosphonic acids, phosphonates phosphinate esters and phosphine oxides is described. The synthetic methodology is based on nucleophilic addition of phosphorus species to imidazole-2 derived imines. Additionally, it was discovered that heating the imidazol-2-yl-(amino)methylphosphonates with aqueous HCl or H2SO4 leads to their decomposition resulting
描述了新的咪唑-2-基-(氨基)甲基膦酸,膦酸酯次膦酸酯和氧化膦的有效合成。合成方法基于将磷物质亲核加成到咪唑2衍生的亚胺上。此外,还发现,将咪唑-2-基-(氨基)甲基膦酸酯与HCl或H 2 SO 4水溶液加热会导致其分解,从而导致C-P键断裂,消除含磷片段并形成相应的仲咪唑-2烷基胺。假定了裂解的机械途径。