Potassium Carbonate → HCID 66857182, compound

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Reaction Steps

To a solution of 1-[1-(4-bromo-phenyl)-ethylamino]-4-methyl-pentan-3-one (3.42 g, 0.01 mol) and K2CO3 (6.9 g, 0.05 mol) in dried CH2Cl2 (50 mL) was added chloroformate (1.41 g, 0.015 mol). The mixture was refluxed overnight. The solvent was removed to give the crude product, which was purified by column to give [1-(4-bromo-phenyl)-ethyl]-(4-methyl-3-oxo-pentyl)-carbamic acid methyl ester (2.8 g, 79%). 1H NMR (CDCl3): 1.01 (m, 6H), 1.48 (m, 3H), 2.25-2.47 (m, 2H), 2.62 (m, 1H), 3.24 (m, 2H), 5.46 (s, 1H), 7.17 (m, 2H), 7.45 (m, 2H).

Provenance & Evidence