To quench the reaction, 20% NaOH was added and stirred for an additional 30 minutes. The mixture was extracted with ether, washed with brine, dried with MgSO4, and the solvent removed via rotary evaporation. H NMR, C NMR, and IR spectroscopy were used to confirm the formation of the secondary alcohol. Yields obtained in this session have mostly been quantitative. Before removing the solvent with rotovap, students took 2mL aliquots of the dried solution and used a Thermo Scientific Trace 1310 Gas