Benzene → 2,4-Pyrimidinediamine, 6-chloro-N(sup 4)-(2-(diethylamino)ethyl)-N(sup 2),N(sup 2)-dimethyl-5-(methylthio)-
Reaction equation
[CH3:1][N:2]([CH3:13])[C:3]1[N:8]=[C:7]([Cl:9])[C:6]([S:10][CH3:11])=[C:5](Cl)[N:4]=1.C1C=CC=CC=1.[CH2:20]([N:22]([CH2:26][CH3:27])[CH2:23][CH2:24][NH2:25])[CH3:21]>C(N(CC)CC)C>[CH3:21][CH2:20][N:22]([CH2:23][CH2:24][NH:25][C:5]1[N:4]=[C:3]([N:2]([CH3:1])[CH3:13])[N:8]=[C:7]([Cl:9])[C:6]=1[S:10][CH3:11])[CH2:26][CH3:27]Participants
5
Procedure
23.8 parts of 2-dimethylamino-4,6-dichloro-5-methylthio-pyrimidine are placed in 300 parts by volume of benzene and a solution of 12.2 parts of N,N-diethylethylenediamine and 16 parts of triethylamine is added. The mixture is heated under reflux for three hours. After filtering off the triethylamine hydrochloride, the mixture is concentrated, extracted with ether/water, and the organic phase is concentrated and recrystallised from ethyl alcohol. 2-dimethylamino-4-(2'-diethylamine)ethylamino-5-methylthio-6-chloropyrimidine having a melting point of 56°C. is obtained.
Workup
- temperatureThe mixture is heated
- temperatureunder reflux for three hours
- filtrationAfter filtering off the triethylamine hydrochloride
- concentrationthe mixture is concentrated
- extractionextracted with ether/water
- concentrationthe organic phase is concentrated
- customrecrystallised from ethyl alcohol
Sources & evidence
- ORD record
- ord-24b5c5bbf46742f2bfef854f16bbca0f
- Source dataset
- uspto-grants-1976_07
- Patent number
- US03968214
Reaction notes
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