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Helmut Julian Heiter Gyte Vilkauskaite Wolfgang Holzer 《Journal of heterocyclic chemistry》2013,50(1):141-144
A series of 4‐ethynylcinnolines 3a – e was prepared by Sonogashira reaction of 4‐chlorocinnoline ( 1 ) with appropriate alkynes. Moreover, Suzuki coupling of 1 with boronic esters gave the corresponding 4‐arylcinnolines 5a – c . Detailed NMR spectroscopic data including unambiguous chemical shift assignments of all 1H, 13C, and 15N resonances of the obtained cinnoline derivatives are reported. 相似文献
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