Palladium-Catalyzed Cross-Coupling of Silanols, Silanediols, and Silanetriols Promoted by Silver(I) Oxide
作者:Kazunori Hirabayashi、Atsunori Mori、Jun Kawashima、Masahiro Suguro、Yasushi Nishihara、Tamejiro Hiyama
DOI:10.1021/jo000679p
日期:2000.8.1
Palladium-catalyzed cross-coupling of aryl- or alkenylsilanols, silanediols, and silanetriols with a variety of iodoarenes by the catalysis of palladium(0) and in the presence of silver(I) oxide furnished the coupling products in good to excellent yields. The reactions of silanediols or silanetriols under similar conditions proceeded much faster than those of silanols to afford the corresponding coupling
通过钯(0)的催化并在氧化银(I)的存在下,钯催化的芳基或链烯基硅烷醇,硅烷二醇和硅烷三醇与各种碘代芳烃的交叉偶联为偶联产物提供了良好或优异的收率。硅烷二醇或硅烷三醇在相似条件下的反应比硅烷醇的反应进行得快得多,从而可以在较短的反应时间内(5-12小时)以优异的产率提供相应的偶联产物。反应后银残余物的X射线衍射(XRD)图谱的测量表明,氧化银(I)被转化为碘化银(I)。