Differentially Protected Benzenediboronic Acids: Divalent Cross-Coupling Modules for the Efficient Synthesis of Boron-Substituted Oligoarenes
作者:Hiroyoshi Noguchi、Takayuki Shioda、Chih-Ming Chou、Michinori Suginome
DOI:10.1021/ol702420x
日期:2008.2.1
boron-masking strategy, new divalent cross-coupling modules have been designed for the efficient synthesis of boron-substituted oligoarenes. The modules, i.e., monoprotected o-, m-, and p-benzenediboronic acid derivatives, undergo highly selective Suzuki-Miyaura coupling with sp2 iodides, bromides, chlorides, and triflates, affording coupling products in which the protected boronyl groups are left intact
基于硼屏蔽策略,已设计出新的二价交叉偶联模块以有效合成硼取代的低聚芳烃。该模块,即单保护的邻,间和对苯二硼酸衍生物,经过高度选择性的Suzuki-Miyaura与sp2碘化物,溴化物,氯化物和三氟甲磺酸酯偶联,得到偶联产物,其中受保护的硼烷基保持完整。