Cyclometalation of Arylazo Compounds. Part 1 synthesis and cyclopalladation of some substituted 1-arylazonaphthalenes. 1st Communication on compounds with a metal-arene ?-bond
作者:Alfred J. Klaus、Paul Rys
DOI:10.1002/hlca.19810640522
日期:1981.7.22
effects and the different reactivities of the two arene moieties. Substitution of the acetato-bridge with bromide or iodide allows the syntheses of the corresponding bromo- and iodo-bridged complexes, and a chloro-bridged dimer complex can be converted to a monomeric ethylenediamino-Pd(II)-azo species with ethylenediamine. Cyclopalladation of sulfonated azo ligands leads to water-soluble Pd(II) complexes
描述了1-苯基氮杂萘(1a)及其[3'-甲基-(1b),4'-甲氧基-(1c),3'-甲氧基-(1d)]衍生物的合成。用Pd这些偶氮配体的Cyclopalladation(II)醋酸盐或Na 2的PdCl 4所配位的偶氮Ñ导致复合物用Pd(II)β -原子和PDC在C(2)中的萘部分σ键。在C(2)上这种类型的金属化过程中,Pd(II)优先于在苯环邻位或在邻位的palpalation萘环的位置被认为主要是由于空间效应和两个芳烃部分的不同反应性。用溴化物或碘化物取代乙酰桥可合成相应的溴和碘桥联的络合物,而氯桥联的二聚体络合物可与乙二胺转化为单体的乙二氨基-Pd(II)-偶氮类。磺化偶氮配体的环缩合导致水溶性Pd(II)配合物在C(2)处具有Pd-Cσ键。