反应详情

In 10 ml of benzene, 180 mg of 6-chloro-4-(1-pyrazolyl)pyrimidine, 175 ml of phenol, and 152 mg of 1,8-diazabicyclo-(5,4,0)-7-undecene (DBU) were dissolved, and refluxed for 7 hours. This reaction solution was washed with water, and an organic fraction was dried over anhydrous sodium sulfate. The resulting extract was distilled to give a residue, and the residue was purified by alumina gel column chromatography using a mixture of n-hexane and ethyl acetate (2:1) to yield 175 mg 6-phenoxy-4-(1-pyrazolyl)pyrimidine, recrystallized from n-hexane, to give an acicular crystal having a melting point of 92.5°-93.5° C.,

1. temperaturerefluxed for 7 hours
2. washThis reaction solution was washed with water
3. dry with materialan organic fraction was dried over anhydrous sodium sulfate
4. extractionThe resulting extract
5. distillationwas distilled
6. customto give a residue
7. customthe residue was purified by alumina gel column chromatography
8. additiona mixture of n-hexane and ethyl acetate (2:1)