Potassium Hydroxide → Benzyl alcohol, 4-(2,4-diamino-5-pyrimidinylmethyl)-2,6-dimethoxy-alpha,alpha-dimethyl-
Reaktionsgleichung
[NH2:1][C:2]1[N:7]=[C:6]([NH:8]C(=O)C)[C:5]([CH2:12][C:13]2[CH:18]=[C:17]([O:19][CH3:20])[C:16]([C:21]([OH:24])([CH3:23])[CH3:22])=[C:15]([O:25][CH3:26])[CH:14]=2)=[CH:4][N:3]=1.[OH-].[K+]>>[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([CH2:12][C:13]2[CH:14]=[C:15]([O:25][CH3:26])[C:16]([C:21]([OH:24])([CH3:23])[CH3:22])=[C:17]([O:19][CH3:20])[CH:18]=2)=[CH:4][N:3]=1Komponenten
3
Reaktionsbedingungen
- Temperatur
- 10 °C
Versuchsvorschrift
A suspension of 11.3 g. of N-{2-amino-5-[4-(1-hydroxy-1-methyl-ethyl)-3,5-dimethoxy-benzyl]-4-pyrimidinyl}-acetamide in 40 ml. of 10% methanolic potassium hydroxide was boiled at reflux for 1 hour and then cooled to about 10°C. The crystals were removed by filtration with suction and washed with a small amount of methanol. After crystallization from methanol, there was obtained 4-[(2,4-diamino-5-pyrimidinyl)-methyl]-2,6-dimethoxy-α,α-dimethyl-benzyl alcohol having a m.p. of 248°-250°C.