Synthesis of 4-substituted and 3,4-disubstituted indazole derivatives by palladium-mediated cross-coupling reactions
作者:Saïd El Kazzouli、Latifa Bouissane、Mostafa Khouili、Gérald Guillaumet
DOI:10.1016/j.tetlet.2005.06.080
日期:2005.9
The synthesis of 4-substituted indazole derivatives by palladium-mediated cross-coupling reactions was described. Suzuki, Heck, Sonogashira and Stille cross-coupling reactions were used to introduce aryl, vinyl and alkynyl substituents in 4-position of indazole derivatives. The selectivity of bis-Suzuki reactions of 3,4-diiodo- and 3-bromo-4-iodoindazoles was investigated.
描述了通过钯介导的交叉偶联反应合成4-取代的吲唑衍生物。Suzuki,Heck,Sonogashira和Stille交叉偶联反应用于在吲唑衍生物的4位上引入芳基,乙烯基和炔基取代基。研究了3,4-二碘-和3-溴-4-碘吲唑的双-Suzuki反应的选择性。