Journal
SYNLETT
Volume -, Issue 10, Pages 1534-1540Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0031-1290680
Keywords
hypervalent iodine; N-phenyl benzamides; cyclization; oxidative coupling; benzoxazoles
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Funding
- National Natural Science Foundation of China [20772053]
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The intramolecular oxidative C-O coupling of N-(4-alkoxy-phenyl) and N-(4-acetamido-phenyl) benzamides was achieved under metal-free conditions by using phenyliodine bis(trifluoroacetate) as oxidant and TMSOTf as catalyst. The reactions afford benzoxazole products in high yields.
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