反应详情

1-(2,6-Dichlorobenzoyl)-3-(6-(4-chlorophenylthio)-3-pyridinyl)urea (2.0 grams) was refluxed in 100 ml. of concentrated HCl (37%) for 4 hours. The reaction mixture was cooled and the product separated by filtration, yield 1.5 grams, m.p., 214°-217° C.

1. temperatureThe reaction mixture was cooled
2. customthe product separated by filtration, yield 1.5 grams, m.p., 214°-217° C.