反应详情

Referring to FIG. 37, 2-(4-(Chlorosulfonyl)-3,5-dimethylphenoxy)acetic acid (6 g, 21.6 mmol) was dissolved in SOCl2 (50 mL) and the reaction mixture was refluxed overnight. Proton NMR analysis on a sample from the reaction mixture exhibited the conversion went completion. Concentration of the mixture under reduced pressure gave product as a white solid (6.4 g, quantitative); 1H NMR (CDCl3, 300 MHz): δ 6.71 (s, 2H), 5.03 (s, 2H), 2.80 (s, 6H).

1. temperaturethe reaction mixture was refluxed overnight