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Reductive Activation of Tripod Cobalt Compounds: Oxidative Addition of H−H, P−H, and Sn−H Functions

✍ Scribed by Ute Winterhalter; Laszlo Zsolnai; Peter Kircher; Katja Heinze; Gottfried Huttner

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
704 KB
Volume
2001
Category
Article
ISSN
1434-1948

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✦ Synopsis

Treatment of the tripod compounds tripodCoCl 2 (1), and tri-podCoCl (2), [tripod = CH 3 C(CH 2 PPh 2 ) 3 ] in THF solution under argon atmosphere with strong reducing agents such as KC 8 leads to the generation of reactive species. While the dinitrogen compound tripodCo(N 2 )Cotripod (3), which is formed under N 2 atmosphere, is rather unreactive, the species formed under argon atmosphere undergo selective reactions with compounds containing P-H or Sn-H functions. With PhPH 2 as the reagent, the diphosphene compound tri-podCo(η 2 -PhP=PPh) (8), is formed in a yield (44%) similar to Scheme 1

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