A process for the palladium-catalyzed coupling of terminal...

C - Chemistry – Metallurgy – 07 – D

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C07D 213/127 (2006.01) C07D 213/26 (2006.01) C07D 213/30 (2006.01) C07D 215/12 (2006.01) C07D 215/14 (2006.01) C07D 231/12 (2006.01) C07D 231/56 (2006.01) C07D 239/26 (2006.01) C07D 333/24 (2006.01) C07D 471/04 (2006.01)

Patent

CA 2690679

The present invention relates to a process for the regioselective synthesis of compounds of the formula (I), (I) wherein D, J and W have the meanings indicated in the claims. The present invention provides an efficient and general palladium-catalyzed coupling process of heteroaryl tosylates with terminal alkynes to a wide variety of substituted, multifunctional heteroaryl-1 -alkynes of the formula I useful for the production of pharmaceuticals, diagnostic agents, liquid crystals, polymers, herbicides, fungicidals, nematicidals, parasiticides, insecticides, acaricides and arthropodicides.

La présente invention concerne un procédé de synthse régiosélective de composés représentés par la formule (I), dans laquelle D, J et W ont les significations indiquées dans les revendications. La présente invention concerne un procédé, efficace et général, de couplage catalysé par le palladium, d'hétéroaryl tosylates avec des alcynes terminales afin d'obtenir une large variété d'hétéroaryl-1-alcynes substituées, multifonctionnelles, représentées par la formule I, utiles pour la production de médicaments, d'agents de diagnostic, de cristaux liquides, de polymères, d'herbicides, de fongicides, de nématicides, de parasiticides, d'insecticides, d'acaricides et d'arthropodicides.

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