Factors influencing coordination versus oxidative addition of C-H bonds to molybdenum and tungsten: Structural and spectroscopic evidence that the calixarene framework promotes C-H bond activation

被引:8
作者
Buccella, Daniela
Tanski, Joseph M.
Parkin, Gerard [1 ]
机构
[1] Columbia Univ, Dept Chem, New York, NY 10027 USA
[2] Vassar Coll, Poughkeepsie, NY 12604 USA
关键词
D O I
10.1021/om700279c
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Mo(PMe3)(6) and W(PMe3)(4)(eta(2)-CH2PMe2)H react with the diphenol CH2((ArOH)-O-Me2)(2) (Ar-Me2 = C6H2Me2) to yield [kappa(2),eta(2)-CH2((ArO)-O-Me2)(2)]M(PMe3)(3)H-2 (M = Mo, W), which possess agostic M-H-C interactions. NMR spectroscopic studies provide evidence that the tungsten compound is in facile equilibrium with the metalated trihydride [kappa(3)-CH((ArO)-O-Me2)(2)]W(PMe3)(3)H-3.
引用
收藏
页码:3275 / 3278
页数:4
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