Synthesis of Biaryls via Unusual Deoxygenative Dimerization of 1,4-Epoxy-1,4-dihydroarenes Catalyzed by Palladium Complexes
作者:Huai-Ting Shih、Hung-Hsin Shih、Chien-Hong Cheng
DOI:10.1021/ol0069204
日期:2001.3.1
Treatment of various 1,4-epoxy-1,4-dihydroarenes with trichlorosilane in toluene in the presence of a palladium complex affords the corresponding biaryls in good to excellent yields. The process appears to occur via a novel palladium-catalyzed hydrosilylative dimerization of 1,4-epoxy-1,4-dihydroarenes and subsequent elimination of HOSiCl(3) and H(2)O.
在钯配合物的存在下,在甲苯中用三氯硅烷处理各种1,4-环氧-1,4-二氢芳烃,得到相应的联芳基,收率很好。该过程似乎是通过新型的钯催化的1,4-环氧-1,4-二氢芳烃的氢甲硅烷基化二聚反应和随后的HOSiCl(3)和H(2)O消除而发生的。