Preparation, properties, and reactions of metal-containing heterocycles
作者:Ekkehard Lindner、Monther Khanfar
DOI:10.1016/s0022-328x(01)00866-x
日期:2001.7
Trifunctional primary phosphines of the type 1,3,5-[PH2(CH2)n]3C6H3 (3b–d) were obtained via an Arbusov reaction between the 1,3,5-tris(bromoalkyl)benzenes 1b–d and P(OEt)3 followed by a reaction of the trisphosphonates 1,3,5-[(EtO)2P(O)(CH2)n]3C6H3 (2b–d) with LiAlH4. A straightforward conversion of these sensitive key phosphines 3b–d to the corresponding water-soluble ligands 1,3,5-tris[bis(hydr
通过1,3,5-三(溴烷基)苯之间的Arbusov反应获得1,3,5- [PH 2(CH 2)n ] 3 C 6 H 3(3b - d)型三官能伯膦。1b – d和P(OEt)3,然后三膦酸酯1,3,5-[(EtO)2 P(O)(CH 2)n ] 3 C 6 H 3(2b – d)与LiAlH 4反应。这些敏感的关键膦3b - d直接转化为相应的水溶性配体1,3,5-三[双(羟甲基)膦基烷基]苯4b - d和1,3,5-三[双(2'-二乙基膦酸酯基乙基]膦酰基烷基]苯5b – d分别通过与甲醛进行甲酰化和与乙烯基膦酸二乙酯进行氢膦化来实现。由三当量的铂(II)络合物Cl 2 Pt(NCPh)2和两当量的配体5b – d组成的五组分自组装在高稀释度条件下,以高收率形成了纳米级水溶性三萜类环烷烃6b – d。但是,与配体4b – d的可比反应仅产生了不溶于所有有机溶剂和水的聚合材料。通过31 P