Methacryloyl chloride → HCID 22181556, compound

Participants

Reaction Steps

To 4′-Amino-3′-fluoro-biphenyl-2-sulfonic acid tert-butylamide (5.000 g, 15.51 mmoles) at room temperature in ethyl acetate (50 ml) was added saturated sodium bicarbonate, aqueous, 50 ml and then 2-methyl-acryloyl chloride (1.25 equiv.). Stirred for 2 hours then added a further 1 ml of the acid chloride. After 2 hours an aliquot showed product by NMR. Product seems to co-run with starting material. Extracted into ethyl acetate, washed with brine, dried MgSO4, and then concentrated in vacuo. Collected some crystalline product from ethyl acetate hexane, 0.48 g. Columned mother liquor to afford product. Combined with previously crystallized fraction to afford N-(2′-tert-Butylsulfamoyl-3-fluoro-biphenyl-4-yl)-2-methyl-acrylamide (4.520 g). APCI (AP+): 391 (M+H)+.

Provenance & Evidence