Science

Quaternary ammonium (hypo) iodite catalysis for enantioselective oxidative cycloetherification

M Uyanik, H Okamoto, T Yasui, K Ishihara

Index: Uyanik, Muhammet; Okamoto, Hiroaki; Yasui, Takeshi; Ishihara, Kazuaki Science, 2010 , vol. 328, # 5984 p. 1376 - 1379

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Citation Number: 231

Abstract

Abstract It is desirable to minimize the use of rare or toxic metals for oxidative reactions in the synthesis of pharmaceutical products. Hypervalent iodine compounds are environmentally benign alternatives, but their catalytic use, particularly for asymmetric transformations, has been quite limited. We report here an enantioselective oxidative cycloetherification of ketophenols to 2-acyl-2, 3-dihydrobenzofuran derivatives, catalyzed ...