Facile Construction of the Benzofuran and Chromene Ring Systems via Pd<sup>II</sup>-Catalyzed Oxidative Cyclization
作者:So Won Youn、Jeong Im Eom
DOI:10.1021/ol051264z
日期:2005.7.1
text]. We herein report the development of one-pot procedures for the conversion of allyl aryl ethers to 2-methylbenzofurans (via sequential Claisenrearrangement 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