反応式
[Cl:1][C:2]1[CH:8]=[CH:7][CH:6]=[C:5]([Cl:9])[C:3]=1[NH2:4].Cl.C1C(O)=CC=CC=1C.[N:19]#[C:20][NH2:21].[OH-].[Na+]>CCOCC>[ClH:1].[Cl:1][C:2]1[CH:8]=[CH:7][CH:6]=[C:5]([Cl:9])[C:3]=1[NH:4][C:20]([NH2:21])=[NH:19]参加物
7
実験手順
To 51 g (0.315 mole) of 2,6-dichloroaniline is added 0.4 mole of ethereal HCl and 200 ml of m-cresol. The mixture is then stirred and heated on a steam bath to drive off the ether and excess hydrogen chloride. To the resultant mixture is then added 13.3 g (0.315 mole) of cyanamide then heated for 2 hours on a steam bath. The reaction mixture is then cooled, added to 150 ml of conc. sodium hydroxide solution, cooled and extracted with 2 liters of ether. The ether layer is washed with 2 × 1 liter of water, dried over sodium sulfate, charcoaled and evaporated. The residue is triturated with hexane and the precipitate is filtered off and washed with ether and dried to obtain 2,6-dichlorophenylguanidine hydrochloride.
後処理
- temperatureheated on a steam bath
- temperaturethen heated for 2 hours on a steam bath
- temperatureThe reaction mixture is then cooled
- temperaturecooled
- extractionextracted with 2 liters of ether
- washThe ether layer is washed with 2 × 1 liter of water
- dry with materialdried over sodium sulfate
- customevaporated
- customThe residue is triturated with hexane
- filtrationthe precipitate is filtered off
- washwashed with ether
- customdried
出典と根拠
- ORDレコード
- ord-f7759749f35443679a48c41421fdda07
- 出典データセット
- uspto-grants-1976_08
- 特許番号
- US03976643
関連ノート
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