Carbonate phosphonium salts as catalysts for the transesterification of dialkyl carbonates with diols. The competition between cyclic carbonates and linear …

M Selva, A Caretto, M Noè, A Perosa

文献索引：Selva, Maurizio; Caretto, Alessio; Noe, Marco; Perosa, Alvise Organic and Biomolecular Chemistry, 2014 , vol. 12, # 24 p. 4143 - 4155

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被引用次数: 11

摘要

At 90–120° C, in the presence of methylcarbonate and bicarbonate methyltrioctylphosphonium salts as catalysts ([P8881][A];[A]= MeOCO2 and HOCO2), the transesterification of non-toxic dimethyl-and diethyl-carbonate (DMC and DEC, respectively) with 1, X-diols (2≤ X≤ 6) proceeds towards the formation of cyclic and linear products. In particular, 1, 2-propanediol and ethylene glycol afford propylene-and ethylene-carbonate ...