Ammonium → 3,4-Dimethylpyrrolidine-2,5-dione

HRID 904718

反応式

HRID 904718 の反応式
[CH3:1][CH:2]([CH:6]([CH3:10])[C:7](O)=[O:8])[C:3](O)=[O:4].[NH4+:11].Cl>C(OCC)(=O)C>[CH3:1][CH:2]1[CH:6]([CH3:10])[C:7](=[O:8])[NH:11][C:3]1=[O:4]

参加物

5

反応条件

温度
60 °C

実験手順

1 g of 2,3-dimethylsuccinic acid (a mixture of D-, L-, and meso-isomers) was added to 10 ml of 28% aqueous ammonium solution. The mixture was heated and stirred at about 60° C. for 1 hour. After cooling, to the reaction mixture was added aqueous hydrochloric acid solution so as to neutralize, and then the mixture was extrated twice with 10 ml of ethyl acetate. The extract was concentrated to obtain 0.73 g of 2,3-dimethylsuccinimide (a mixture of D-, L, and meso-isomers).

後処理

  1. temperatureThe mixture was heated
  2. temperatureAfter cooling, to the reaction mixture
  3. concentrationThe extract was concentrated

出典と根拠

ORDレコード
ord-64a8af986959487aa0255059ff310410
出典データセット
uspto-grants-1983_12
特許番号
US04419443

関連ノート

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