반응 #684956

반응 방정식

Dimethylamine

triethylamine

1-(3-dimethylaminopropyl)-3-ethylcarbodiimide

4-pentynoic acid

→

title compound

N,N-dimethyl-4-pentynamide

용매

methylene chloride

반응 조건

후처리

1. 1
   세척The reaction mixture was washed successively with 1 N hydrochloric acid
2. 2
   건조a saturated aqueous sodium hydrogencarbonate solution, water, and saturated brine, dried over anhydrous magnesium sulfate
3. 3
   농축concentrated under reduced pressure

실험 절차

Dimethylamine (2 M solution in tetrahydrofuran, 8.53 ml), triethylamine (2.59 ml), and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide (3221 mg), were added to a solution of 4-pentynoic acid (552 mg) in methylene chloride (150 ml) and this reaction mixture was stirred at room temperature for 24 hours. The reaction mixture was washed successively with 1 N hydrochloric acid, a saturated aqueous sodium hydrogencarbonate solution, water, and saturated brine, dried over anhydrous magnesium sulfate, then concentrated under reduced pressure to give the title compound (129 mg). The obtained compound was used in the following reaction without further purification.

출처