Synthesis of Phosphonium-Substituted Vinylidene Complexes from [HCCCH<sub>2</sub>PPh<sub>3</sub>]<sup>+</sup>: Exploring the Competition between Allene and Vinylidene Formation.
- Elizabeth J. Smith (1701520)
- Natalie E. Pridmore (1364133)
- Adrian C. Whitwood (1305204)
- Jason M. Lynam (1364136)
DOIAbstract
Reaction of the alkenyl-substituted carbene complex [Ru(κ<sup>2</sup>-O<sub>2</sub>CMe)(OC{Me}O(CCHCH<sub>2</sub>)(PPh<sub>3</sub>)<sub>2</sub>]<sup>+</sup> with PPh<sub>3</sub> results in the formation of the vinylidene-containing species [Ru(κ<sup>1</sup>-O<sub>2</sub>CMe)(κ<sup>2</sup>-O<sub>2</sub>CMe)(CCHCH<sub>2</sub>PPh<sub>3</sub>)(PPh<sub>3</sub>)<sub>2</sub>]<sup>+</sup>, among other products. This complex could also be obtained by reaction of [Ru(κ<sup>2</sup>-O<sub>2</sub>CR)(PPh<sub>3</sub>)<sub>2</sub>] (R = Me, Ph) with [HCCCH<sub>2</sub>PPh<sub>3</sub>]<sup>+</sup> although in this instance competitive formation of allene-containing [Ru(κ<sup>1</sup>-O<sub>2</sub>CR)(κ<sup>2</sup>-O<sub>2</sub>CR)(η<sup>2...
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