Ammonium Chloride → Butanoic acid, 2-hydroxy-2-(trifluoromethyl)-, ethyl ester

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Reaction Steps

To a −78° C. solution of ethyl trifluoropyruvate (129.0 g 758 mmol) in ether was added dropwise within 90 min a solution of EtMgBr 3.0 M in ether (252 mL). The solution was brought over one 1 h to ca. −10° C. and poured over 2 L of saturated NH4Cl. The layers were separated and the aqueous phase extracted with ether (3×500 mL). The organic phases were combined, dried over MgSO4 and the solvent removed. Distillation at 50-65° C. (30 mm Hg) gave the title compound. 1H NMR (400 MHz, acetone-d6): δ 5.4 (s, 1H), 4.35 (q, 2H), 2.07 (m, 1H), 1.83 (m, 1H), 1.3 (t, 3H) and 0.93 (t, 3H).

Provenance & Evidence