Influences of the electronic and steric effects of the substituents in cyclopalladation of ferrocenylhydrazones
作者:Concepción López、Jaume Granell
DOI:10.1016/s0022-328x(97)00701-8
日期:1998.3
The syntheses and characterization of seven novel ferrocenylhydrazones of general formulae: [(η5-C5H5)Fe(η5-C5H4)–CHN–NH(R)}] with R=C6H4-4-Cl (1a), C6H4-4-NO2(1b), C6H5(1c), C6H3-2,4-(NO2)2(1d), C6H3-2,5-(Cl)2(1e), C6F5(1f) or C6H4-2-CH3(1g)} are reported. We also describe the reactions of compounds 1 with PdCl2 in refluxing ethanol, by which different cyclopalladated complexes containing σ(Csp2
的合成和七个通式新颖ferrocenylhydrazones表征:[(η 5 -C 5 H ^ 5)的Fe (η 5 -C 5 H ^ 4)-CHN-NH(R)}] 其中R = C 6 H 4 -4-Cl (1a),C 6 H 4 -4-NO 2 (1b),C 6 H 5 (1c),C 6 H 3 -2,4-(NO 2)2 (1d),C 6 H 3 -2,5-(Cl)2 (1e),碳报告了6 F 5 (1f)或C 6 H 4 -2-CH 3 (1g) }。我们还描述了化合物1与PdCl 2在回流的乙醇中的反应,通过该反应,不同的环钯配合物包含σ(C sp 2,芳基–Pd),σ(C sp 2,二茂铁–Pd)或σ(C sp 3 –Pd )获得了债券。σ(C sp 2,二茂铁的难易程度的比较研究-H)或σ(C SP 2,芳基在化合物-H)键1和在ferrocenylhydrazones:[(η