Palladium-Catalyzed Cross-Coupling Reactions of Heterocyclic Silanolates with Substituted Aryl Iodides and Bromides
作者:Scott E. Denmark、John D. Baird
DOI:10.1021/ol053165r
日期:2006.2.1
heterocyclic silanols undergo cross-coupling with a variety of aromatic iodides and bromides under mild conditions. In situ deprotonation of the silanols with an equivalent amount of sodium hydride in toluene generates the sodium salt that couples with iodides under the action of Pd(2)(dba)(3).CHCl(3) in good yield at room temperature to 50 degrees C. The aromatic bromides also couple with these salts