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Griesbeck, A. G.; Soldevilla, A., Science of Synthesis, (2008) 43, 385.
Alkene metathesis {see, e.g., Science of Synthesis, Vol. 2 [Compounds of Groups 7–3 (Mn⋯, Cr⋯, V⋯, Ti⋯, Sc⋯, La⋯, Ac⋯) (Section 2.6.1.5)]} is an efficient route for innumerable synthetic applications, and alkyne metathesis is gaining synthetic momentum.[165] Arylalkynes may be generated by the four major processes described in this section (Scheme 51): alkyne homodimerization, alkyne cross metathesis (ACM), ring-closure alkyne metathesis (RCAM) {Science of Synthesis, Vol. 2 [Compounds of Groups 7–3 (Mn⋯, Cr⋯, V⋯, Ti⋯, Sc⋯, La⋯, Ac⋯) (Section 2.6.2.72.6.2.7)]}, and acyclic diyne metathesis (ADIMET). Several high-valent alkylidyne complexes are catalytically competent and remarkably active.[166] The critical aryl—alkyne bond is already preformed in one of the substrates and is exchanged during the metathesis process.[167]
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References
| [165] | Müeeeeee, M.; Meeeee, M. M., Meee. Meeeee. (Meeeeeeee), (8888), 8888. |
| [166] | Meeeeee, M. M., Meee. Meeeee. (Meeeeeeee), (8888), 8888. |
| [167] | Meee, M. M.; MeMeeeee, M., M. Me. Meee. Mee., (8888) 88, 8888. |
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