Nickel-Catalyzed Hiyama-type Decarboxylative Coupling of Propiolic Acids and Organosilanes
作者:Gabriel Charles Edwin Raja、Francis Mariaraj Irudayanathan、Han-Sung Kim、Jimin Kim、Sunwoo Lee
DOI:10.1021/acs.joc.6b00883
日期:2016.6.17
the decarboxylative coupling reaction of alkynyl carboxylic acids with organosilanes. Ni(acac)2 and 1,10-phenanthroline showed the best result in the presence of CsF and CuF2 at 120 °C. This system tolerated the presence of alkyl, alkoxy, halogen, nitro, cyano, ketone, and ester functional groups. Moreover, the reaction with but-2-ynedioic acid and organosilane afforded the corresponding symmetrical diarylalkynes
开发了一种Ni催化体系,用于炔基羧酸与有机硅烷的脱羧偶联反应。Ni(acac)2和1,10-菲咯啉在120°C下存在CsF和CuF 2时显示出最佳结果。该体系容许存在烷基,烷氧基,卤素,硝基,氰基,酮和酯官能团。此外,与丁-2-炔二酸和有机硅烷的反应提供了相应的对称二芳基炔烃。