Although alkyne metathesis has been known for 50 years, rapid progress in this field has
mostly occurred during the last two decades. In this article, the development of several …

Transition metals form a variety of alkylidyne complexes with either a d0 metal center (high-
valent) or a non-d0 metal center (low-valent). One of the most interesting properties of …

We report in this communication the first example of catalytic alkyne metathesis reactions
mediated by well-defined non-d0 alkylidyne complexes. The air-stable d2 Re (V) alkylidyne …

The molybdenum and tungsten 2, 4, 6-trimethylbenzylidynes [MesC≡ M {OC (CF3) 2Ph}
3](12a, M= Mo; 12b, M= W) were prepared and structurally characterized as related …

The reaction of the molybdenum alkylidyne complex [MesC≡ Mo {OC (CF3) 3} 3](MoF9,
Mes= 2, 4, 6-trimethylphenyl) with the potassium siloxides KOSi (O t Bu) 3 and KOSi (O t Bu) …

The first cationic and neutral tungsten alkylidyne N‐heterocyclic carbene (NHC) complexes
bearing one triflate ligand were synthesized and tested for their reactivity in alkyne …

Alkyne metathesis (AM), the cousin of the 'noble'alkene metathesis, has attracted rapidly
growing attention within the past 20 years and has been widely used in the synthesis of …

The synthesis of ether-functionalized molybdenum benzylidyne complexes [ArC≡ Mo {OC
(CF3) 2Me} 3](6, Ar= para-methoxyphenyl; 7, Ar= 2, 4, 6-trimethoxyphenyl) and of the …

Benzylidyne tungsten systems bearing a combination of alkoxide and amide ligands were
readily obtained by partial alcoholysis of amido‐supported tungsten complexes …

Alkyne metathesis catalyzed by metal alkylidynes is a powerful method for forming a triple
bond. Among different modes of alkyne metathesis, cross‐metathesis and ring‐closing …