Synthesis of diaryls from phenylboric acid and aryl iodides in an aqueous medium
摘要：
The cross coupling of aryl halides is a convenient method for the synthesis of diaryls with virtually any functional groups. The reaction is usually carried out in a system containing benzene and aqueous alkali in the presence of 3 mole % Pd(PPh3) 4 at reflux. We have shown that the reaction of phenylboric acid with aryl iodides such as m-, p-, and o-ICeH4CO2H and p-ICsH40H dissolved in water in the presence of base proceeds in the absence of an organic solvent. Pd(OAc) 2 may be used as the catalyst and sodium carbonate may be used as the base. The yields of asymmetrical diaryls vary from 70 to 95%
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DOI：
10.1007/BF00962156
被引量：
年份：
1989
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