Based on an ortho-lithiation protocol of 2,2′-dibromo-1,1′-binaphthyl four tetrasubstituted binaphthyls, 2,2′-dibromo-3,3′-diiodo-, 3,3′-dibromo-2,2′-diiodo-, 2,2′,3,3′-tetrabromo-, and 2,2′,3,3′-tetraiodo-1,1′-binaphthyls have been prepared in excellent yield which in turn proved to be versatile key intermediates in the synthesis of various 2,2′,3,3′-tetrasubstituted 1,1′-binaphthyl derivatives.

中文翻译：

---

通往2,2'，3,3'-四取代联萘的新途径

基于2,2'-dibromo-1,1'-binaphthyl的邻位锂化方案，四个四取代的biaphthyls，2,2'-dibromo-3,3'-diiodo-，3,3'-dibromo-2,2已以优异的产率制备了'-二碘-，2,2'，3,3'-四溴-和2,2'，3,3'-四碘-1,1'-联萘，进而证明了其用途广泛合成各种2,2'，3,3'-四取代1,1'-联萘衍生物的关键中间体。