作者:Daniela Verga、Claudia Percivalle、Filippo Doria、Alessio Porta、Mauro Freccero
DOI:10.1021/jo1025892
日期:2011.4.1
naphthols and 6,6′-disubstituted binols (binol = 2,2′-dihydroxy-1,1′-binaphthyl) is presented. The synthesis has been accomplished by a one-step procedure starting from 6-bromo derivatives via direct lithiation with n-BuLi, followed by the addition of several electrophiles. This C−C functionalization has been successfully achieved with iodomethane, 3-methoxybenzaldehyde, benzophenone, methyl-2-methylbenzoate
提出了制备6-取代的萘酚和6,6'-二取代的二元醇(binol = 2,2'-二羟基-1,1'-联萘基)的直接方法。合成是通过一步法完成的,该过程从6-溴衍生物开始,通过使用n -BuLi的直接锂化反应,然后添加数种亲电试剂。使用碘甲烷,3-甲氧基苯甲醛,二苯甲酮,-2-甲基苯甲酸甲酯,苯甲酸甲酯,碳酸二甲酯,2-氯-2-氧代乙酸乙酯和2,2-二甲基环氧乙烷(E)已成功实现了该C-C功能化。该反应性提供了对手性二取代的6,6'-二元醇有用的无保护基的合成方案,并保留了二元醇部分的构型。