Sulfuric Acid → HCID 140340991, compound

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Reaction Steps

The acid 4a was esterified by stirring in a solution of tetrahydrofuran, ethanol, and concentrated sulfuric acid (39:60:1) for 16 hours at room temperature. The resulting solution was evaporated and the residue dissolved in ethyl acetate, washed with aqueous sodium bicarbonate and brine, dried over magnesium sulfate, and evaporated. Recrystallization from ethyl acetate/hexane furnished 76.1% of white crystals, m.p. 154°-155° C. Anal. (C13H14ClNO5) C,H,N.

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