On the efficiency of tetraalkylammonium salts in Heck type reactions
摘要：
Under appropriate conditions, tetraalkylammonium hydrogensulfate can be just as efficient as tetraalkylammonium chloride or bromide for facilitating Heck-type reactions. Moreover, an appropriate selection of the [Pd / Base / QX] catalyst system can allow this type of reactions to be efficiently realised at will, in a strictly anhydrous medium, in a water-orgamic solvent mixture or in water alone.
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关键词：
Palladium-catalyzed vinylation Phase-transfer conditions Hydrogen substitution-reactions Anion capture processes Aryl halides Nitrogen-heterocycles Vinylic substitution Organic halides Cyclization Arylation
DOI：
10.1016/0040-4020(96)00547-9
被引量：
年份：
1996
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