Synthesis and Characterization of Conjugated Diallenes and Their Binuclear Ruthenium η<sup>3</sup>-Allyl Complexes
作者:Jian-Long Xia、Xianghua Wu、Yinghui Lu、Gang Chen、Shan Jin、Guang-ao Yu、Sheng Hua Liu
DOI:10.1021/om801191f
日期:2009.5.11
A series of conjugated diallenes (CH2═C═CHRCH═C═CH2; R = 1,4-C6H4, 4,4′-C6H4-C6H4, 4,4′-C6H4CH═CHC6H4, 4,4′-C6H4N═NC6H4, 4,4′-C6H4C≡CC6H4) have been prepared by copper-catalyzed reactions of the corresponding diacetylenes with paraformaldehyde and diisopropylamine. Treatment of these conjugated diallenes with [RuHCl(CO)(PPh3)3] produced the binuclear ruthenium η3-allyl complexes [(PPh3)2(CO)ClRu]2[(η3-CH2CHCH)2R]
一系列共轭diallenes的(CH 2 ═C═CHRCH═C═CH 2 ; R = 1,4-C 6 H ^ 4,4,4'--C 6 H ^ 4 -C 6 ħ 4,4,4'--C 6 ħ 4 CH = CHC 6 H ^ 4,4,4'--C 6 H ^ 4 N═NC 6 ħ 4,4,4'--C 6 H ^ 4 C≡CC 6 ħ 4)已经准备由铜催化的反应相应的二乙炔与低聚甲醛和二异丙胺的混合物。用[RuHCl(CO)(PPh)处理这些共轭二烯3)3 ]制备的双核钌η 3 -烯丙基配合物[(PPH 3)2(CO)CLRU] 2 [(η 3 -CH 2 CHCH)2 R],所有这些都被通过元素分析,ES- MS,1 H和31 P 1 H} NMR光谱,IR光谱和UV / vis分光光度法,以及循环和方波伏安法。这些双金属络合物显示出在可见光区域的显着的吸收(λ最大:380-451纳米),和配合物[(PPH