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Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K.

Ethyl bromoacetate (10.0 ml, 225 mmol) and 50.0 ml of ethyl acetate were added to a 100 ml round bottom flask equipped with a magnetic stirrer. 1-vinyl imidazole (8.17 ml, 90.2 mmol) containing 100 ...