반응 #2345161

반응 방정식

2-adamantyl acetic acid

WSC

Triethylamine

(1S)-1,8,8-trimethyl-3-azabicyclo[3.2.1]octane hydrochloride

→

(1S)-3-(2-adamantylacetyl)-1,8,8-trimethyl-3-azabicyclo[3.2.1]octane

용매

methylene chloride

반응 조건

후처리

1. 1
   기타was gradually changed to room temperature
2. 2
   workup.STIRRINGstirred for 23 hours
3. 3
   세척The reaction mixture was washed with saturated aqueous sodium chloride solution
4. 4
   건조dried by anhydrous sodium sulfate
5. 5
   여과After filtering the drying agent
6. 6
   농축the filtrate was concentrated in vacuo

실험 절차

Triethylamine 0.69 ml was added in a methylene chloride 20 ml solution of (1S)-1,8,8-trimethyl-3-azabicyclo[3.2.1]octane hydrochloride 0.78 g (4.1 mill), and stirred at 0° C. for 30 min. 2-adamantyl acetic acid 0.80 g (4.1 mill) and WSC 1.11 g (5.79 mill) were added therein, then temperature of the reaction mixture was gradually changed to room temperature and stirred for 23 hours. The reaction mixture was washed with saturated aqueous sodium chloride solution and dried by anhydrous sodium sulfate. After filtering the drying agent, the filtrate was concentrated in vacuo to obtain crude (1S)-3-(2-adamantylacetyl)-1,8,8-trimethyl-3-azabicyclo[3.2.1]octane. The concentrate was added to THF 50 ml solution of lithium aluminum hydride 0.47 g (12 mill) and refluxed for 2 hours. The reaction mixture was cooled, added water and filtered the insoluble material. The filtrate was concentrated in vacuo. The thus obtained residue was purified by means of silica gel column chromatography (Wako gel, C200, chloroform:acetone=10:1-5:1) to obtain the product.

출처