N-Vinylpyridinium and -ammonium tetrafluoroborate salts:: New electrophilic coupling partners for Pd(0)-catalyzed Suzuki cross-coupling reactions
N-Vinylpyridinium and -ammonium tetrafluoroborate salts:: New electrophilic coupling partners for Pd(0)-catalyzed Suzuki cross-coupling reactions
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DOI：
10.1021/ol063027h
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发表时间：
2007-02-15
期刊：
影响因子：
5.2
通讯作者：
Brown, Neil
中科院分区：
文献类型：
--
作者：
Buszek, Keith R.;Brown, Neil
N-乙烯基吡啶和N-三烷基铵四氟硼酸盐是一类新的Pd（0）催化Suzuki交叉偶联反应的亲电偶联配体，与多种硼酸反应，产率非常高。该盐易于由活化的乙炔和四氟硼酸吡啶鎓或三烷基铵制备，以形成结晶、空气稳定且不吸湿的晶体。
N-Vinylpyridinium and -trialkylammonium tetrafluoroborate salts represent a new class of electrophilic coupling partner for Pd(0)-catalyzed Suzuki cross-coupling reactions and give very good to excellent yields of products with a wide range of boronic acids. The salts are easily prepared from activated acetylenes and pyridinium or trialkylammonium tetrafluoroborates to form crystalline, air-stable, and nonhygroscopic crystals.