反应详情

To 2-Fluoro-5-methanesulfonyl-benzoic acid (247569-56-8) (600 mg) in dimethylacetamide (10 mL) was added cesium carbonate at 170° C. 2-trifluoromethyl-propanol (0.94 mL) was first added to the reaction mixture followed by additionally 0.47 mL every 24 hours. After a total of 72 hours, the reaction mixture was acidified by addition of formic acid, concentrated in vacuo and purified by preparative HPLC to yield the title compound as a light brown solid (897 mg). MS (m/e): 325.3. (M−H, 100%)

1. customfollowed by additionally 0.47 mL every 24 hours
2. concentrationconcentrated in vacuo
3. custompurified by preparative HPLC