Citation: You Cheng LIU, Wei WANG, Qing Xiang GUO. Oxidative Coupling of Phenols by 2,2,6,6-Tetramethyl-4-methoxypiperidine Oxoammonium Chloride[J]. Chinese Chemical Letters, ;1996, 7(9): 790-793. shu

Oxidative Coupling of Phenols by 2,2,6,6-Tetramethyl-4-methoxypiperidine Oxoammonium Chloride

a Department of Modern Chemistry, University of Science and Technology of China, Hefei 230026;
b National Laboratary of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000

Received Date: 7 March 1996

Fund Project: We thank the National Science Foundation of China for financial Support.

The reactions of several phenols with 2, 2, 6, 6-tetramethyl-4-methoxypi-peridine oxoammonium chloride were studied. It was found that this oxoammonium salt is a facile reagent for the oxidative coupling of phenols, o-substituted phenols gave the para-para-coupling products and p-substituted phenols gave the ortho-ortho-coupling products, while o-, p-substituted phenol gave the corresponding dehydrogenated coupling product.
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