反応 #4426

反応方程式

2-chloro-3,4-dihydro-6-(3,4-dimethoxyphenyl)-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine

formylhydrazine

→

3,4-dihydro-6-(3,4-dimethoxyphenyl)-2-(2-formylhydrazino)-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine

収率 26.4%

溶媒

chloroform

反応条件

後処理

1. 1
   温度The mixture was refluxed for 6 hours
2. 2
   その他The resulting precipitates
3. 3
   ろ過were filtered off
4. 4
   その他the filtrate was evaporated in vacuo
5. 5
   その他The residue was chromatographed on silica gel

実験手順

To a suspension of 2-chloro-3,4-dihydro-6-(3,4-dimethoxyphenyl)-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine (3.0 g) in chloroform (15 ml) was added formylhydrazine (1.36 g). The mixture was refluxed for 6 hours and cooled to ambient temperature. The resulting precipitates were filtered off and the filtrate was evaporated in vacuo. The residue was chromatographed on silica gel using chloroform to give 3,4-dihydro-6-(3,4-dimethoxyphenyl)-2-(2-formylhydrazino)-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine (0.84 g).

出典