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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
A Pd(II)-catalysed activation and arylation of C(sp2)-H bond directed by pyridine N-oxide in water is achieved with high regioselectivity to form monoarylated products in yields up to 91%. The wide substrate scope highlights the flexibility of the catalyst.The reaction mechanism is proposed.
Keywords:Organic Chemistry; Palladium; Catalysis; 2-Phenylpyridine N-Oxide; Water