Hydrochloric Acid → MLS002695130

HRID 993059ノート

反応式

HRID 993059 の反応式
[CH:1](=[C:8]1[C:13](=[O:14])[NH:12][C:11](=[O:15])[NH:10][C:9]1=[O:16])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[BH4-].[Na+].O.Cl>CO>[CH2:1]([CH:8]1[C:9](=[O:16])[NH:10][C:11](=[O:15])[NH:12][C:13]1=[O:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

実験手順

To a suspension of 5-benzylidenebarbituric Acid (4 g) in 200 ml of methanol are added portionwise 1.4 g of sodium borohydride. After 10 minutes from the end of the addition, 100 ml of water are added and the mixture is acidified with 1 N hydrochloric acid to pH=2. The solvent is evaporated off and the aqueous phase is extracted with ethyl acetate. The pooled extracts are dried over sodium sulfate and concentrated to dryness. 3.6 g of the product crystallize, m.p. 207-209° C.

後処理

  1. additionare added
  2. customThe solvent is evaporated off
  3. extractionthe aqueous phase is extracted with ethyl acetate
  4. dry with materialThe pooled extracts are dried over sodium sulfate
  5. concentrationconcentrated to dryness
  6. custom3.6 g of the product crystallize

出典と根拠

ORDレコード
ord-8fe768fe0fed4a3999ca21754de35712
出典データセット
uspto-grants-2002_10
特許番号
US06472396B1

反応ノート

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