Reaktion #216859

Reaktionsgleichung

dimethylthiocarbamoyl chloride

sodium hydride

DMF

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

→

expected product

Ausbeute 63.0%

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

Ausbeute 63.0%

Lösungsmittel

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONThere are then added
2. 2
   Extraktionextracted with ethyl ether
3. 3
   SonstigeThe organic phase is decanted
4. 4
   Sonstigedried on magnesium sulfate
5. 5
   Sonstigeevaporated
6. 6
   SonstigeThe resulting residue is purified by chromatography on a silica column
7. 7
   Wascheneluted with a 70:30 mixture of dichloromethane and hexane

Vorschrift

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.

Quelle