反応 #216859

反応方程式

dimethylthiocarbamoyl chloride

sodium hydride

DMF

methyl 3-(1-adamantyl)-4-hydroxybenzoate

→

expected product

収率 63.0%

methyl 3-(1-adamantyl)-4-(dimethylaminothiocarbonyloxy)benzoate

収率 63.0%

溶媒

water

反応条件

後処理

1. 1
   workup.ADDITIONThere are then added
2. 2
   抽出extracted with ethyl ether
3. 3
   その他The organic phase is decanted
4. 4
   その他dried on magnesium sulfate
5. 5
   その他evaporated
6. 6
   その他The resulting residue is purified by chromatography on a silica column
7. 7
   洗浄eluted with a 70:30 mixture of dichloromethane and hexane

実験手順

Into a round bottom flask, there are introduced 2.4 g (0.08 mole) of sodium hydride (80% in oil) and 250 ml of DMF. Under a nitrogen current, there are slowly added 22.9 g (0.08 g mole) of methyl 3-(1-adamantyl)-4-hydroxybenzoate. The mixture is stirred until the cessation of gaseous emission. There are then added, all at once, 12.9 g (0.104 mole) of dimethylthiocarbamoyl chloride and the mixture is stirred for 16 hours at ambient temperature. The reaction medium is poured into water and extracted with ethyl ether. The organic phase is decanted, dried on magnesium sulfate and evaporated. The resulting residue is purified by chromatography on a silica column eluted with a 70:30 mixture of dichloromethane and hexane. After evaporation of the solvents, 1.8 g (63% yield) of the expected product having a melting point of 174°-175° C. are recovered.

出典