Syntheses and coordination behaviour of 2-(ortho-phosphinophenyl)-functionalised 1,3-dioxolanes and 1,3-dioxanes towards a [(COD)Rh]-complex fragment – models for immobilised complexes
作者:M. Ahlmann、O. Walter
DOI:10.1016/j.jorganchem.2004.05.050
日期:2004.9
(COD: 1,5-cyclooctadiene) results in the formation of the mononuclear complexes: chloro(COD)[2-(ortho-diphenylphosphinophenyl)-1,3-dioxolane]rhodium(I)} (2a), chloro(COD)[2-(ortho-diisopropylphosphinophenyl)-1,3-dioxolane]rhodium(I)} (2b), chloro(COD)[2-(ortho-diphenylphosphinophenyl)-1,3-dioxane]rhodium(I)} (2c), and chloro(COD)[2-(ortho-diisopropylphosphinophenyl)-1,3-dioxane]rhodium(I)} (2d)
报道了醚-膦配体的合成:2-(邻-二苯基膦基苯基)-1,3-二氧戊环(1a),2-(邻二异丙基膦基苯基)-1,3-二氧戊环(1b),2-(邻-二苯基膦基苯基)-1,3-二氧戊环(1b)。二苯基膦基苯基)-1,3-二恶烷(1c),2-(邻二异丙基膦基苯基)-1,3-二恶烷(1d)。它们与[(COD)RhCl] 2(COD:1,5-环辛二烯)的反应导致形成单核络合物:氯(COD)[2-(邻-二苯基膦基苯基)-1,3-二氧戊环]铑( I)}(2a),氯(COD)[2-(邻位-(二异丙基膦基苯基)-1,3-二氧戊环]铑(I)}(2b),氯(COD)[2-(邻-二苯基膦基苯基)-1,3-二氧六环]铑(I)}(2c)和氯(COD)[2-(邻-二异丙基膦基苯基)-1,3-二恶烷]铑(I)}(2d)。化合物的氯配体2A和2B与TlPF被抽象6,伴有的配位体的缩醛氧原子插入1A和1B到金属中心的配位球,产生(COD)[η