Preparations of Furans from. ALPHA.-Bromo Ketones and Enol Ethers Catalyzed by a Rhenium (I) Nitrogen Complex.

Y Koga, H Kusama, K Narasaka

Index: Koga, Yuji; Kusama, Hiroyuki; Narasaka, Koichi Bulletin of the Chemical Society of Japan, 1998 , vol. 71, # 2 p. 475 - 482

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Citation Number: 21

Abstract

By the catalytic use of a rhenium (I) nitrogen complex,[ReCl (N 2)(PMe 2 Ph) 4], α-keto radicals are generated from α-bromo ketones and react with vinyl ethers and silyl enol ethers intermolecularly. Various substituted furans, including tetrasubstituted furans such as furoguaiacin, are prepared by this method.

~86%

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~42%

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