SYNTHESIS OF 4-ARYL(HETARYL)PYRAZOLO[1,5- a ]PYRAZINES BY PALLADIUM-CATALYZED SUZUKI–MIYAURA CROSS COUPLING
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DOI: 10.1007/5204
Abstract: 4-Бромпиразоло[1,5-a]пиразины взаимодействуют с арил(гетарил)борными кислотами при наличии каталитических количеств Pd(dppf)Cl2·CH2Cl2 и избытка Cs2CO3 в системе растворителей MeCN–H2O, 9:1 с образованием 4-арил(гетарил)пиразоло[1,5-a]пиразинов. read more here.
Keywords: pyrazolo pyrazines; hetaryl pyrazolo; palladium catalyzed; pyrazines palladium ... See more keywords
Synthesis of 4-aryl(hetaryl)pyrazolo[1,5-a]pyrazines by palladium-catalyzed Suzuki–Miyaura cross coupling
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DOI: 10.1007/s10593-019-02579-2
Abstract: 4-Bromopyrazolo[1,5-a]pyrazines react with aryl(hetaryl)boronic acids in the presence of catalytic amounts of Pd(dppf)Cl2·CH2Cl2 and an excess of Cs2CO3 in the MeCN–H2O, 9:1 solvent system with the formation of 4-aryl(hetaryl)pyrazolo[1,5-a]pyrazines. read more here.
Keywords: pyrazolo pyrazines; hetaryl pyrazolo; aryl hetaryl; synthesis aryl ... See more keywords