反应详情

Acetophenone (2.8 g.) was reacted with 1-isopropyl-2-methyl-5-trifluoromethyl-7-aminobenzimidazole (4.0 g.) in 50 ml. of xylene for 21 hours according to the procedure of Example 1. After drying over sodium sulfate, the solvent was removed and the crude residue was recrystallized from benzene-cyclohexane (1:1) to give 3.38 g. of the desired product, m.p. 164°-166° C.

1. dry with materialAfter drying over sodium sulfate
2. customthe solvent was removed
3. customthe crude residue was recrystallized from benzene-cyclohexane (1:1)
4. customto give 3.38 g