Reactivity of Ruthenium Vinylidene Complexes Containing Indenyl/dppe Ligands and Unsaturated Bonds at Cd with Trimethylsilyl Azide

doi:10.3390/molecules17078533

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Molecules 2012, 17(7), 8533-8553; doi:10.3390/molecules17078533

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Reactivity of Ruthenium Vinylidene Complexes Containing Indenyl/dppe Ligands and Unsaturated Bonds at Cd with Trimethylsilyl Azide

Hui-Ling Sung^1,* , Tze-Min Her², Wen-Hsien Su² and Chin-Pao Cheng³

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; in revised form: 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.

AMA 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(7):8533-8553.

Chicago/Turabian Style

Sung, Hui-Ling; Her, Tze-Min; Su, Wen-Hsien; Cheng, Chin-Pao. 2012. "Reactivity of Ruthenium Vinylidene Complexes Containing Indenyl/dppe Ligands and Unsaturated Bonds at Cd with Trimethylsilyl Azide." Molecules 17, no. 7: 8533-8553.

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