Urea → Einecs 256-823-2

HRID 614968ノート

反応式

HRID 614968 の反応式
[NH2:1][C:2]([NH2:4])=[O:3].N[C:6](N)=[O:7].C(O)(=O)C[CH2:11][CH2:12][C:13]([OH:15])=[O:14]>>[NH2:1][C:2]([NH2:4])=[O:3].[C:6]([OH:7])(=[O:3])[CH2:11][CH2:12][C:13]([OH:15])=[O:14]

参加物

3

反応物 2

HCID 1176UreaHCID 7345679421835-54-1

生成物 1

HCID 6452277Einecs 256-823-2

実験手順

On the other hand, 45 g. of urea was further added to the mother liquor with the urea-glutaric acid adduct removed and dissolved in the liquor at 60° C. Then, the liquor was cooled to and allowed to stand at 15° C. for 5 hours to precipitate a urea-succinic acid adduct. By filtration of the liquor, 50.3 g. of urea-succinic acid adduct (including 21.6 g. of succinic acid) was obtained. The urea-succinic acid adduct was dissolved in 300 g. of water at 30° C. and the solution was treated with the same strongly acidic ion exchange resin as mentioned above. 200 g. of water was distilled off from the thus treated solution. On cooling to and allowing to stand at 10° C., succinic acid crystallized out of the solution and 19.2 g. of succinic acid having a purity of 99.0% was obtained by filtration.

後処理

  1. customremoved
  2. dissolutiondissolved in the liquor at 60° C
  3. temperatureThen, the liquor was cooled to and
  4. customto precipitate a urea-succinic acid adduct
  5. filtrationBy filtration of the liquor, 50.3 g

出典と根拠

ORDレコード
ord-58755673760a4f628046155830e4ec0f
出典データセット
uspto-grants-1979_03
特許番号
US04146730

反応ノート

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