反应详情

A solution of 3.7 grams (0.02 Mol) hexane sulfonyl chloride, 3.2 grams (0.02 Mol) 4-aminobenzoylacetonitrile and 5 mL of pyridine was stirred at 0° C. for 1.5 hours. The resulting very thick brown solution was dissolved in 15 mL of methanol and dropwise added to 100 mL of 2N hydrochloric acid at 0° C. A tan precipitate formed which was stirred for 30 minutes, then filtered and washed with water and dried for 2 hours at 50° C./10 mm Hg to give 6.9 grams of crude product. This was recrystallized from aqueous ethanol to give 4.2 grams (13.6 mMol, 68% yield) of pure product, m.p.=125°-127° C.

1. customA tan precipitate formed which
2. filtrationfiltered
3. washwashed with water
4. customdried for 2 hours at 50° C./10 mm Hg
5. customto give 6.9 grams of crude product
6. customThis was recrystallized from aqueous ethanol