Cyclohexylamine → 4-Chloro-N-cyclohexylbenzamide
Reaction equation
[CH:1]1([NH2:7])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[Cl:8][C:9]1[CH:17]=[CH:16][C:12]([C:13](Cl)=[O:14])=[CH:11][CH:10]=1>C1C=CC=CC=1>[CH:1]1([NH:7][C:13](=[O:14])[C:12]2[CH:16]=[CH:17][C:9]([Cl:8])=[CH:10][CH:11]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Cyclohexylamine (80 gm., 0.8 mole) is dissolved in 2.5 l. of benzene and treated dropwise with 70 gm. (0.4 mole) of p-chlorobenzoyl chloride in 250 ml. of benzene over 45 minutes with intermittent cooling to maintain reaction temperature between 22°-30°. After stirring an additional 15 minutes, the mixture is diluted with benzene and washed with water. A suspended solid is filtered and the filtrate concentrated to 1 l. to give a second crop; these are combined and recrystallized from methanol, 65.0 gm. (68.5%), m.p. 191°-193°.