Palladium-catalyzed coupling and carbonylative coupling of silyloxy compounds with hypervalent iodonium salts
作者:Suk-Ku Kang、Tokutaro Yamaguchi、Pil-Su Ho、Won-Yeob Kim、Seok-Keun Yoon
DOI:10.1016/s0040-4039(97)00230-x
日期:1997.3
silyloxycyclopropane to iodonium salts in the presence of Pd(OAc)2 (2 mol %) and (4:1) to afford β-substituted ester. Alternatively, carbonylative coupling of silyloxypropane was carried out by slow addition of silyloxypropanes to iodonium salts under CO(1 atm) at room temperature in aqueous medium. The palladium-catalyzed coupling of ketene trimethylsilyl acetals with iodonium salts is also described.
通过在Pd(OAc)2(2 mol%)和(4:1)的存在下将甲硅烷氧基环丙烷缓慢添加到碘鎓盐中来实现1-乙氧基-1-三甲硅烷基甲硅烷氧基环丙烷与四氟硼酸二苯基碘鎓的芳基化和烯基化反应取代的酯。可替代地,通过在室温下在水性介质中在CO(1atm)下将甲硅烷氧基丙烷缓慢加入碘鎓盐中来进行甲硅烷氧基丙烷的羰基偶联。还描述了钯催化的乙烯酮三甲基甲硅烷基乙缩醛与碘鎓盐的偶联。