Hydrochloric Acid → 4-({[(Benzyloxy)carbonyl](methyl)amino}methyl)benzoic acid

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Reaction Steps

The methyl 4-(((benzyloxycarbonyl)(methyl)amino)methyl)benzoate was dissolved in methanol, then LiOH (0.35 g, 14.7 mmol) was added. The resulting mixture was maintained at room temperature for 2 days. The mixture was adjusted to pH=1˜2 with 2N aqueous hydrochloric acid then extracted with ethyl acetate (50 mL×3). The combined organic layer was washed with brine, dried over anhydrous sodium sulfate and condensed under vacuum. The residue was purified by silica gel chromatography (petrol ether:ethyl acetate=10:1) to yield a white solid of 4-(((benzyloxycarbonyl)(methyl)amino)methyl)benzoic acid (1.25 g, 56.8%), LC-MS (ESI) m/z 300 [M+1]+.

Provenance & Evidence