A highly active diradical cobalt(iii) catalyst for the cycloisomerization of alkynoic acids†,Chemical Communications

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A highly active diradical cobalt(iii) catalyst for the cycloisomerization of alkynoic acids†
Chemical Communications ( IF 4.3 ) Pub Date : 2018-07-03 00:00:00 , DOI: 10.1039/c8cc04459g
Nicolas Leconte _{1,

2,

3,

4} , Amaury du Moulinet d'Hardemare _{1,

2,

3,

4} , Christian Philouze _{1,

2,

3,

4} , Fabrice Thomas _{1,

2,

3,

4}

Affiliation

The first cobalt-catalysed cycloisomerisation of alkynoic acids is reported, thanks to the design of a well-defined diradical cobalt(III) catalyst, in the absence of any additives. The high efficiency, regioselectivity and chemoselectivity are comparable to those of noble metal-based systems. The unique reactivity might be attributed to second coordination sphere effects.

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