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出 处:《有机化学》2006年第4期573-578,共6页Chinese Journal of Organic Chemistry
摘 要:铯盐如Cs2CO3,CsF等因在钯催化碳碳偶联,N,O,S的烃基化反应中表现出良好的性能而引起了人们的广泛关注.介绍了铯盐在钯催化的Suzuki,Heck,Stille,Sonogashira反应,烯醇盐的芳基化,酚类的邻位芳基化以及羰基化反应中的促进作用.同时还对铯盐参与的N,O,S等的烃基化反应进行了讨论,并侧重于与其他碱金属盐的对比.Cesium salts such as Cs2CO3, CsF, etc. have attracted much attention for their good effect on promoting Pd-catalyzed C-C formation coupling, alkylation and arylation of N, O and S atoms. This paper introduces the salt assistance to Pd-catalyzed Suzuki, Heck, Stille and Sonogashira reactions as well as arylation of enolate, ortho-arylation of phenol and carbonylation. The Cs-mediated alkylation and arylation of N, O and S atoms are also discussed, with emphases placed upon the comparison of cesium salts with their potassium or sodium analogs.
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