反応 #1005950

反応方程式

ammonia water

tetrahydrofuran

methanesulfonyl chloride

tetrahydrofuran

{2-[3-(3,4,5-Trichlorophenyl)-3-(trifluoromethyl)pyrrolidin-1-yl]-4-(tri-fluoromethyl)pyrimidin-5-yl}methanol

tetrahydrofuran

→

title compound

収率 45.0%

1-{2-[3-(3,4,5-trichlorophenyl)-3-(tri-fluoromethyl)-pyrrolidin-1-yl]-4-(trifluoromethyl)pyrimidin-5-yl}methanamine

収率 45.0%

溶媒

methanol

反応条件

後処理

1. 1
   workup.ADDITIONwas added dropwise
2. 2
   workup.ADDITIONAfter the dropwise addition
3. 3
   workup.ADDITIONThe resulting solution was added dropwise to a mixture solution, which
4. 4
   その他was separately prepared
5. 5
   workup.WAITAfter the stirring for 12 hours at room temperature
6. 6
   抽出extracted with ethyl acetate
7. 7
   乾燥The organic layer was dried over magnesium sulfate
8. 8
   その他The solvent was evaporated off under reduced pressure
9. 9
   その他the residue was then purified by a silica gel chromatography

実験手順

{2-[3-(3,4,5-Trichlorophenyl)-3-(trifluoromethyl)pyrrolidin-1-yl]-4-(tri-fluoromethyl)pyrimidin-5-yl}methanol (1.0 g) was added to tetrahydrofuran (30 mL), and then, under ice cooling, tetrahydrofuran solution (10 mL) comprising methanesulfonyl chloride (0.3 g) was added dropwise thereto. After the dropwise addition was completed, the solution was stirred at room temperature for one hour. The resulting solution was added dropwise to a mixture solution, which was separately prepared to comprise 28% ammonia water (50 mL), tetrahydrofuran (100 mL), and methanol (100 mL), under ice cooling. After the stirring for 12 hours at room temperature, the reaction solution was poured over ice water, and then extracted with ethyl acetate. The organic layer was dried over magnesium sulfate. The solvent was evaporated off under reduced pressure, and the residue was then purified by a silica gel chromatography to obtain the title compound (0.4 g, 45%).

出典