Sodium Hydroxide → 1-(p-Trifluoromethylbenzyl)-5-i-propylbiguanide dihydrochloride
反応式
[ClH:1].[F:2][C:3]([F:13])([F:12])[C:4]1[CH:11]=[CH:10][C:7]([CH2:8][NH2:9])=[CH:6][CH:5]=1.[CH:14]([NH:17][C:18]([NH:20][C:21]#[N:22])=[NH:19])([CH3:16])[CH3:15].[OH-].[Na+]>O>[ClH:1].[ClH:1].[F:2][C:3]([F:12])([F:13])[C:4]1[CH:11]=[CH:10][C:7]([CH2:8][NH:9][C:21]([NH:20][C:18]([NH:17][CH:14]([CH3:16])[CH3:15])=[NH:19])=[NH:22])=[CH:6][CH:5]=1参加物
5
実験手順
A stirred mixture of 6.9 g (0.035 mole) of p-trifluoromethylbenzylamine hydrochloride and 4.3 (0.035 mole) of 1-i-propyl-3-cyanoguanidine is immersed in a 180° C oil bath for 1 hour. The melt is cooled and dissolved in 35 ml of hot water. The solution is cooled in an ice bath, made alkaline with 40% sodium hydroxide solution, and extracted with 150 ml of ether. The ether layer is dried over potassium carbonate, filtered and the ether solution made strongly acidic with a saturated ethereal hydrochloric acid solution. The precipitate is washed twice with 25 ml of anhydrous ether and recrystallized from a mixture of ethanol and heptane (3:5) to obtain 1-(p-trifluoromethylbenzyl)-5-i-propylbiguanide dihydrochloride.
後処理
- customis immersed in a 180° C
- customfor 1 hour
- temperatureThe melt is cooled
- temperatureThe solution is cooled in an ice bath
- extractionextracted with 150 ml of ether
- dry with materialThe ether layer is dried over potassium carbonate
- filtrationfiltered
- washThe precipitate is washed twice with 25 ml of anhydrous ether
- customrecrystallized from a mixture of ethanol and heptane (3:5)
出典と根拠
- ORDレコード
- ord-6642f07e15244849b08bd6e1fa69b90e
- 出典データセット
- uspto-grants-1976_12
- 特許番号
- US03996232
反応ノート
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