Palladium-catalyzed 3-Thiomethyltriazine-boronic Acid Cross Coupling: Easy Access to 3-Substituted-1,2,4-triazines

Abstract
The palladium-catalyzed coupling reaction of 3-thiomethyl-1,2,4-triazine 1 with different organoboron compounds in the presence of copper(I) 3-methylsalicylate proceeds to afford the corresponding 3-substituted-1,2,4-triazines in good yield. This approach leads very easily to a large range of C-5 and C-6 unsubstituted as-triazines.

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