Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2016, Issue 18, Pages 3113-3118Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201600508
Keywords
Synthetic methods; Homogeneous catalysis; C-H activation; Palladium; Regioselectivity
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Funding
- National Natural Science Foundation of China (NSFC) [21302014]
- Jiangsu Province Key Laboratory of Fine Petrochemical Engineering [KF1304]
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology [BM2012110]
- Changzhou University, Advanced Catalysis and Green Manufacturing Innovation Center
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A simple and regioselective palladium-catalyzed ortho-C(sp(2))-H acetoxylation of 2-aryloxypyridines with PhI(OAc)(2) as both the oxidant and acetate source has been developed. The mono- and di-acetoxylated products can be achieved by tuning the equivalents of PhI(OAc)(2) and the reaction temperature. A wide range of 2-aryloxypyridines is tolerated. Moreover, 2-pyridyloxyl and acetyl groups can be easily removed, which provides straightforward access to poly-substituted phenols.
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