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Regiospecific Palladium-Catalyzed Cross-Coupling Reactions Using the Operational Equivalent of 1,3-Dilithiopropyne
Synthesis ( IF 2.2 ) Pub Date : 2020-04-07 , DOI: 10.1055/s-0039-1690895
Jorge A. Cabezas 1 , Natasha Ferllini
Affiliation  

A regiospecific palladium-catalyzed cross-coupling reaction using the operational equivalent of the dianion 1,3-dilithiopropyne, with aromatic iodides is reported. This reaction gives high yields of 1-propyn-1-yl-benzenes and 2-(propyn-1-yl)thiophenes in the presence of catalytic amounts of palladium(0) or (II) and stoichiometric amounts of copper iodide. No terminal alkyne or allene isomers were detected. Reaction conditions were very mild and several functional groups were tolerated.

中文翻译:

区域特异性钯催化的交叉偶合反应,使用1,3-二硫代丙炔的操作当量

据报道,区域操作性钯催化的交叉偶联反应使用的操作当量为二价阴离子1,3-二硫代丙炔与芳香族碘化物。在催化量的钯(0)或(II)和化学计量的碘化铜的存在下,该反应可得到高产率的1-丙炔基-1-基苯和2-丙炔基噻吩。没有检测到末端炔烃或丙二烯异构体。反应条件温和,可以容忍几个官能团。
更新日期:2020-04-07
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