Hydrochloric Acid → L-Ascorbic Acid

HRID 650695

反応式

HRID 650695 の反応式
C(O)C.[Na].[CH2:5]([OH:17])[C@H:6]([OH:16])[C@@H:7](O)[C@H:8]([OH:14])[C:9]([C:11]([OH:13])=[O:12])=[O:10].Cl>CC(C)=O>[O:12]=[C:11]1[O:13][C@H:7]([C@H:6]([CH2:5][OH:17])[OH:16])[C:8]([OH:14])=[C:9]1[OH:10]

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 702EthanolHCID 1024242-keto-L-Gulonic acidHCID 5360545Sodium

生成物 1

HCID 54670067L-Ascorbic Acid

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

Japanese laid-open application 58-177986 describes a process which includes the addition of ethanol and acetone to the sodium salt of 2-keto-L-gulonic acid, neutralization with hydrochloric acid, separating off the sodium chloride which is precipitated out by filtration and then holding the reaction mixture at temperatures in the range from 25° C. to 75° C., as a result of which L-ascorbic acid is obtained.

後処理

  1. customseparating off the sodium chloride which
  2. customis precipitated out by filtration
  3. customfrom 25° C. to 75° C.

出典と根拠

ORDレコード
ord-ac1c7694d4e7425fa432c78686514ebd
出典データセット
uspto-grants-2001_08
特許番号
US06274744B1

関連ノート

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