Phosphine-Free Cross-Coupling Reaction of Arylboronic Acids with Carboxylic Anhydrides or Acyl Chlorides in Aqueous Media
摘要:
The palladium acetate-catalyzed coupling reaction of aryl boronic acid with carboxylic anhydride or acyl chloride was carried out smoothly in water in the presence of poly(ethylene glycol) (PEG) or 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) to give high yields of ketones without the use of phosphine ligands. The Pd(OAc)2-H2O-[bmim][PF6] catalytic system can be recovered and reused eight times with high efficiency for both carboxylic anhydride and acyl chloride.
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关键词:
TEMPERATURE IONIC LIQUIDS PALLADIUM-CATALYZED PHENYLATION FRIEDEL-CRAFTS ACYLATION ACTIVATED IN-SITU SODIUM TETRAPHENYLBORATE ORGANOBORON COMPOUNDS BORONIC ACIDS KETONE SYNTHESIS ARYL CHLORIDES HECK REACTION
DOI:
10.1021/jo060749d
年份:
2006
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