Palladium-Catalyzed <i>ortho</i>-Sulfonylation of 2‑Aryloxypyridines and Subsequent Formation of <i>ortho</i>-Sulfonylated Phenols
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A palladium-catalyzed direct sulfonylation of 2-aryloxypyridines on the ortho-position of the benzene ring was developed using 2-pyridyloxyl as the directing group and sulfonyl chlorides as sulfonylation reagents. The protocol was available for both electron-rich and electron-deficient substrates. The ortho-sulfonylated phenol was synthesized expediently from the sulfonylation product by the removal of the pyridyl group.
创建时间：
2016-02-15
