反応 #63585

反応方程式

4-fluoro-α-(4-fluorophenyl)benzeneacetonitrile

1-bromo-3-chloropropane

Methylbenzene

sodium hydroxide

→

α-(3-chloropropyl)-4-fluoro-α-(4-fluorophenyl)benzeneacetonitrile

収率 95.0%

溶媒

water

反応条件

後処理

1. 1
   温度cooled
2. 2
   workup.STIRRINGUpon completion, stirring
3. 3
   その他the layers were separated
4. 4
   その他The organic phase was dried
5. 5
   ろ過filtered
6. 6
   その他evaporated
7. 7
   その他The residue was evaporated once more in vacuo for 30 minutes at 100° C.
8. 8
   その他to remove the last traces of 1-bromo-3-chloropropane

実験手順

To a stirred and cooled (ice-bath) mixture of 22.9 parts of 4-fluoro-α-(4-fluorophenyl)benzeneacetonitrile, 23.6 parts of 1-bromo-3-chloropropane and 0.4 parts of N,N,N-triethylbenzenemethanaminium chloride were added dropwise 600 parts of sodium hydroxide solution 50% at a temperature below 30° C. Upon completion, stirring was continued for 3 hours at 50°-60° C. Methylbenzene and water were added and the layers were separated. The organic phase was dried, filtered and evaporated. The residue was evaporated once more in vacuo for 30 minutes at 100° C. to remove the last traces of 1-bromo-3-chloropropane, yielding 29 parts (95%) of α-(3-chloropropyl)-4-fluoro-α-(4-fluorophenyl)benzeneacetonitrile as a residue (intermediate 14).

出典