Selective ortho-olefination of arenes was achieved with designated 1,2,3-triazole acid auxiliary group under Pd catalyzed C�H activation conditions. Importantly, the 1,2,3 triazole was proved to be effective directing group under condition using molecular O2 severing as terminal oxidant, while other heterocyclic containing directing group showed poor result under identical conditions.

1,2,3-Triazoles as versatile directing group for selective sp2 C-H aerobic oxidative olefination

248th National Meeting (2014)

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