Polarized complexes obtained by regiospecific substitution of a CN group in Ru{C≡CC(CN)=C(CN)₂}(dppe)Cp* (Cp* = η-C₅Me₅)
Date
2012
Authors
Bruce, M.
Burgun, A.
Nicholson, B.
Parker, C.
Skelton, B.
White, A.
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Journal article
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Organometallics, 2012; 31(11):4174-4181
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Michael I. Bruce, Alexandre Burgun, Brian K. Nicholson, Christian R. Parker, Brian W. Skelton, and Allan H. White
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Abstract
The complex Ru{C≡CC(CN)=C(CN) <inf>2</inf>}(dppe)Cp* (1), containing the new tricyanovinylethynyl (3,4,4-tricyanobut-3-en-1-ynyl) ligand, undergoes ready substitution of the 3-cyano group by nucleophiles (Nu) such as H, Me, Pr <sup>i</sup>, Bu, Bu <sup>t</sup>, mesityl, OMe, OBu <sup>t</sup>, OCH <inf>2</inf>CH=CH <inf>2</inf>, NHEt, NEt <inf>2</inf>, and PPh <inf>2</inf> to give Ru{C≡CC(Nu)=C(CN) <inf>2</inf>}(dppe)Cp. The X-ray diffraction structures of several of the resulting complexes are reported and, for the mesityl and PPh <inf>2</inf> products, show that isomerization to the 3,5-dimethylbenzyl and oxidation to the phosphine oxide have respectively occurred. © 2012 American Chemical Society.
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Copyright © 2012 American Chemical Society