Photoreduction of Pt(IV) Halo-Hydroxo Complexes: Possible Hypohalous Acid Elimination
作者:Lasantha A. Wickramasinghe、Paul R. Sharp
DOI:10.1021/ic402358s
日期:2014.2.3
detected in photolyzed benzene solutions. Photolysis of 3 or 6 in the presence of 2,3-dimethyl-2-butene (TME) yields the chlorohydrin (2-chloro-2,3-dimethyl-3-butanol), 3-chloro-2,3-dimethyl-1-butene, and acetone, all expected products from HOCl trapping, but additional oxidation products are also observed. Photolysis of mixed chloro-bromo complex 7 with TME yields the bromohydrin (2-bromo-2,3-dimethyl-3-butanol)
将浓缩的过氧化氢加至反式Pt(PEt 3)2 Cl(R)[ 1(R = 9-菲基),2(R = 4-三氟甲基苯基)]可以生成反式Pt(PEt 3)2( Cl)(OOH)(OH)(R)[ 5(R = 9-菲基),4(R = 4-三氟甲基苯基)],其中氢过氧配体反式为R。络合物5不稳定并与溶剂CH 2反应CL 2,得到的反式,顺式-Pt(PET 3)2(Cl)的2(OH)(9-菲基)(3)。用HCl处理4可获得类似的反式-顺式-Pt(PEt 3)2(Cl)2(OH)(4-三氟甲基苯基)(6)和HBr产生反式-Pt(PEt 3)2(Br)(Cl)( OH)(4-三氟甲基苯基)(7),其中Br和4-三氟甲基苯基配体是反式的。3或6在313或380 nm处发生光解会导致反式Pt(PEt 3)2 Cl(R)(1或2)。未检测到预期的副产物HOCl,但显示出真实的HOCl溶液在反应条件下会分解。在光解苯溶液中检测到氯苯和其他可将PPh