反应详情

A mixture of 3-(6-amino-3H-isobenzofuran-1-ylidene)-5-chloro-1,3-dihydro-indol-2-one (100 mg, 0.33 mmol), pyridine (1 ml) and methanesulfonyl chloride (76 mg, 0.66 mmol) in THF (3.5 ml) was stirred for 16 hours, and was then poured into water (100 ml). The solid was filtered, washed with water and dried under vacuum to give a crude product. The crude product was triturated with MeOH/water to provide N-[3-(5-chloro-2-oxo-1,2-dihydro-indol-3-ylidene)-1,3-dihydro-isobenzofuran-5-yl]-methanesulfonamide as a yellow solid (100 mg, 81%).

1. filtrationThe solid was filtered
2. washwashed with water
3. customdried under vacuum
4. customto give a crude product
5. customThe crude product was triturated with MeOH/water