Tetrahedron Letters

Copper (I)-catalyzed intramolecular cyclization reaction of 2-(2′-chlorophenyl) ethanol to give 2, 3-dihydrobenzofuran

J Zhu, BA Price, SX Zhao, PM Skonezny

Index: Zhu, Jingyang; Price, Benjamin A.; Zhao, Shannon X.; Skonezny, Paul M. Tetrahedron Letters, 2000 , vol. 41, # 21 p. 4011 - 4014

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Citation Number: 34

Abstract

Several drug candidates in development contain a core structure of a substituted dihydrobenzofuran. 1 A common intermediate in the synthesis of these drugs is 4-vinyl-2,3-dihydrobenzofuran . This compound could be prepared from the 4-halo-2,3-dihydrobenzofuran by known chemistry, such as palladium-catalyzed cross-coupling reactions of aryl halides, eg the 'Stille' reaction and the 'Suzuki' reaction, or nickel-catalyzed Grignard cross-coupling ...