Facile construction of the benzofuran and chromene ring systems via PdII-catalyzed oxidative cyclization |
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Authors: | Youn So Won Eom Jeong Im |
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Institution: | Department of Chemistry, Pukyong National University, Busan, Korea. sowony@pknu.ac.kr |
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Abstract: | reaction: see text]. We herein report the development of one-pot procedures for the conversion of allyl aryl ethers to 2-methylbenzofurans (via sequential Claisen rearrangement and oxidative cyclization) and for the conversion of aryl homoallyl ethers to chromenes (via direct oxidative cyclization). It is likely that both reactions proceed via a common Pd-catalyzed pathway involving olefin activation, nucleophilic attack, and beta-hydride elimination. |
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