Molecules 2012, 17(7), 8533-8553; doi:10.3390/molecules17078533
Reactivity of Ruthenium Vinylidene Complexes Containing Indenyl/dppe Ligands and Unsaturated Bonds at Cd with Trimethylsilyl Azide
1
Department of Mathematics and Science (Pre-college), National Taiwan Normal University, New Taipei City 244, Taiwan
2
Department of Chemical and Materials Engineering, Lunghwa University of Science and Technology, Taoyuan County 333, Taiwan
3
Department of Mechatronic Technology, National Taiwan Normal University, Taipei 106, Taiwan
*
Author to whom correspondence should be addressed.
Received: 13 June 2012 / Revised: 5 July 2012 / Accepted: 6 July 2012 / Published: 17 July 2012
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Abstract
This study presents a new reaction of cationic vinylidene complexes with Me3SiN3 (TMSN3), which yields N-coordinated nitrile complexes 3. Treatment of a ruthenium acetylide precursor containing indenyl and dppe ligands with a series of organic halides produced the corresponding vinylidene complexes 2 in good yield. Further reaction of 2 with TMSN3 at room temperature produced N-coordinated ruthenium nitrile complexes 3. Unlike the reaction of cyclopropenylruthenium complexes with TMSN3, which yielded different products depending on the substituent at Cγ, the vinylidene complexes containing unsaturated bonds at Cd yielded similar N-coordinated nitrile complexes. This transformation did not seemingly occur in the reaction of ruthenium vinylidene complexes containing Cp and PPh3 ligands with TMSN3. Deprotonation of these vinylidene complexes yielded cyclopropenyl or thermodynamic furylruthenium complexes, depending on the substitute at Cγ. Subsequent reactions of the cyclopropenyl or furylruthenium complexes with TMSN3 afforded different products.Keywords:
vinylidene; ruthenium; N-coordinated; cyclopropenyl; furyl; indenyl
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MDPI and ACS Style
Sung, H.-L.; Her, T.-M.; Su, W.-H.; Cheng, C.-P. Reactivity of Ruthenium Vinylidene Complexes Containing Indenyl/dppe Ligands and Unsaturated Bonds at Cd with Trimethylsilyl Azide. Molecules 2012, 17, 8533-8553.
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