Ammonia → N-(2-diisopropylaminoethyl)-N-(4,6-dimethyl-2-pyrimidinyl)urea
Reaction equation
[NH3:1].Cl.[CH:3]([N:6]([CH:27]([CH3:29])[CH3:28])[CH2:7][CH2:8][N:9]([C:19]1[N:24]=[C:23]([CH3:25])[CH:22]=[C:21]([CH3:26])[N:20]=1)[C:10](=O)[O:11]C1C=CC=CC=1)([CH3:5])[CH3:4]>O1CCCC1>[CH:3]([N:6]([CH:27]([CH3:29])[CH3:28])[CH2:7][CH2:8][N:9]([C:19]1[N:24]=[C:23]([CH3:25])[CH:22]=[C:21]([CH3:26])[N:20]=1)[C:10]([NH2:1])=[O:11])([CH3:5])[CH3:4]Participants
4
Procedure
Concentrated ammonia (10 ml) is added to a solution of phenyl N-(2-diisopropylaminoethyl)-N-(4,6-dimethyl-2-pyrimidinyl)carbamate hydrochloride (7.33 g., 0.018 mole) in 50 ml of tetrahydrofuran and the mixture is allowed to stand for twenty-four hours. It is concentrated, water and chloroform are added to the residue, the chloroform is separated and concentrated. Crystallization of the residue from hexane yields N-(2-diisopropylaminoethyl)-N-(4,6-dimethyl-2-pyrimidinyl)urea melting at 134°-136° C.