An improved and greener approach towards the synthesis of glycerol carbonate, via transesterification, using 1‐ n ‐butyl‐3‐methylimidazolium‐2‐carboxylate as catalyst is described. The catalyst loading as low as 1% was sufficient to yield quantitative conversions. A plausible mechanism is proposed for the catalytic cycle leading to product formation.
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Naik et al. (2009) studied this question.