反応 #158612

反応方程式

2-chloro-N4-(3,4-ethylenedioxyphenyl)-5-fluoro-4-pyrimidineamine

3-hydroxyaniline

HCl

→

2,4-pyrimidinediamine

N4-(3,4-Ethylenedioxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl)-2,4-pyrimidinediamine

溶媒

MeOH

H2O

H2O

反応条件

後処理

1. 1
   その他The resulting reaction
2. 2
   ろ過saturated and the resulting solid was filtered

実験手順

To a solution of 2-chloro-N4-(3,4-ethylenedioxyphenyl)-5-fluoro-4-pyrimidineamine (0.028 g, 0.1 mmol) in MeOH:H2O (1.8:0.2 mL) was added 3-hydroxyaniline (0.033 g, 0.3 mmol) and heated in a sealed tube at 100° C. for 24 h. The resulting reaction was diluted with H2O (10 mL), acidified with 2N HCl (pH>2), saturated and the resulting solid was filtered to give the desired product, N4-(3,4-ethylenedioxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl))-2,4-pyrimidinediamine (R926210). Purification can be done by filtration through a pad of silica gel using 1-5% MeOH in CH2Cl2 or by crystallization using an appropriate solvent system. 1H NMR (CDCl3+CD3OD): δ 7.76 (bs, 1H), 7.30 (d, 1H, J=2.4 Hz), 7.10 (m, 1H), 7.03 (t, 1H, J=8.1 Hz), 6.89 (dd, 2H, J=2.4 and 9 Hz), 6.78 (d, 1H, J=8.7 Hz), 6.42 (dd, 1H, J=2.4 and 9 Hz), 4.22 (m, 4H); 19F NMR (CDCl3+CD3OD): −47196; LCMS: ret. time: 19.55 min.; purity: 95%; MS (m/e): 355 (MH+).

出典