Convenient one-pot method for the preparation of polysubstituted benzo [b]-and naphtho [1, 2-b]-furans and-thiophenes

AR Katritzky, L Serdyuk, L Xie

Index: Katritzky, Alan R.; Serdyuk, Larisa; Xie, Linghong Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 6 p. 1059 - 1064

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Citation Number: 2

Abstract

N-(Phenoxymethyl)-and N-(phenylthiomethyl)-benzotriazoles are versatile substrates for the preparation of benzofurans and benzothiophenes by insertion reactions of their anions into alkyl and aryl aldehydes and in situ cyclization of the α-aryloxy and α-arylthio ketones thus formed. N-(Naphthyloxy)-and N-(naphthylthio)-benzotriazoles are similarly efficient precursors for naphthofurans and naphthothiophenes.