82.0 mmol), was dissolved in 150 mL of THF and added to a 1-L threenecked round-bottom flask containing 150 mL of THF, 17.5 mL (18.7 g 246.0 "01) of thiolacetic acid, and 4.7 mL of TMSOTf (5.5 g, 24.6 mmol). An exothermic reaction resulted (temperature rise from 23 "C to 38 "C). The mixture was stirred for 1 h at room temperature, and then diluted with 50 mL of ethyl acetate. The reaction was quenched by careful addition of saturated sodium bicarbonate solution ...
