Efficient Metathesis of Terminal Alkynes

http://onlinelibrary.wiley.com/doi/10.1002/anie.v51.52/issuetoc



Efficient Metathesis of Terminal Alkynes (pages 13019–13022)

Dipl.-Chem. Birte Haberlag, Dr. Matthias Freytag, Dr. Constantin G. Daniliuc, Prof. Dr. Peter G. Jones and Prof. Dr. Matthias Tamm

Article first published online: 14 NOV 2012 | DOI: 10.1002/anie.201207772

Now even terminal: The 2,4,6-trimethylbenzylidyne complexes [MesCM{OC(CF₃)₂Me}₃] (M=Mo, W) were synthesized from [Mo(CO)₆] and [W(CO)₆], respectively. The molybdenum complex is an efficient catalyst for the metathesis of internal and terminal alkynes and also for the ring-closing metathesis of internal and terminal α,ω-diynes at room temperature and low catalyst concentrations.

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