Facile synthesis of 6-iodo-2,2′-dipivaloyloxy-1,1′-binaphthyl, a key intermediate of high reactivity for selective palladium-catalyzed monofunctionalization of the 1,1′-binaphthalene core
作者:Csaba Fehér、Béla Urbán、László Ürge、Ferenc Darvas、József Bakos、Rita Skoda-Földes
DOI:10.1016/j.tetlet.2010.05.022
日期:2010.7
A high-yielding procedure for selective monoiodination of 2,2′-dihydroxy-1,1′-binaphthyl (BINOL) is reported. 6-Iodo-2,2′-dipivaloyloxy-1,1′-binaphthyl, obtained in three steps starting from BINOL in 88% overall yield, proved to be a highly efficient substrate in various palladium-catalyzed coupling (Stille, Heck, Sonogashira, and Suzuki coupling) and carbonylation reactions compared to the analogous
报道了2,2'-二羟基-1,1'-联萘(BINOL)选择性单碘化的高产程序。从BINOL分三步获得的6-碘2,2'-二戊酰氧基-1,1'-联萘基以88%的总收率被证明是各种钯催化偶联的高效底物(Stille,Heck,Sonogashira ,和Suzuki偶联)和羰基化反应(与类似的6-溴衍生物比较)。