1-Bromo-3-chloropropane → HCID 57550258, compound

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Reaction Steps

A mixture of methyl 1-(4-hydroxyphenyl)-5-oxopyrrolidine-3-carboxylate a51 (3.48 g, 14.8 mmol, 1 eq), potassium carbonate (4 g, 29.6 mmol, 2 eq) and 1-bromo-3-chloropropane a2 (1.6 ml, 16.2 mmol, 1.1 eq) in acetone (80 ml) is stirred at reflux overnight. The mixture is concentrated under vacuum then the residue is dissolved in ethyl acetate, and washed with a saturated solution of aqueous sodium hydrogenocarbonate. The organic layer is dried over magnesium sulfate and concentrated under vacuum to give 2.3 g of methyl 1-[4-(3-chloropropoxy)phenyl]-5-oxopyrrolidine-3-carboxylate a53 as a yellow oil.

Provenance & Evidence