Effect of base on alkyltriphenylphosphonium salts in polar aprotic solvents

JN Ngwendson, CM Schultze…

文献索引：Ngwendson, Julius N.; Schultze, Cassandra M.; Bollinger, Jordan W.; Banerjee, Anamitro Canadian Journal of Chemistry, 2008 , vol. 86, # 7 p. 668 - 675

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被引用次数: 7

摘要

When arylmethyl phosphonium salts are treated with a base (eg, t-BuOK or NaH) they homocouple to form symmetric 1, 2-diarylethenes. In some cases, dilution and (or) use of excess base lead to very high yields of the product. This reaction is solvent sensitive: the reaction occurs only when polar aprotic solvents such as acetonitrile or DMSO are used. Other alkyl phosphonium salts (eg, ethoxycarbonylmethyltriphenylphosphonium bromide ...