Sodium Carbonate → L-Ascorbic Acid

HRID 231315

反応式

HRID 231315 の反応式
[CH2:1]([OH:13])[C@H:2]([OH:12])[C@@H:3](O)[C@H:4]([OH:10])[C:5]([C:7]([OH:9])=[O:8])=[O:6].C(=O)([O-])[O-].[Na+].[Na+]>O>[O:8]=[C:7]1[O:9][C@H:3]([C@H:2]([CH2:1][OH:13])[OH:12])[C:4]([OH:10])=[C:5]1[OH:6]

参加物

4

反応物 2

HCID 10340Sodium CarbonateHCID 1024242-keto-L-Gulonic acid

生成物 1

HCID 54670067L-Ascorbic Acid収率 91.9%

試薬・触媒・溶媒 1

HCID 962Water溶媒2 回

反応条件

温度
40 °C

実験手順

6-O-(2-keto-L-gulonoyl)-L-ascorbate substantially free from 2-keto-L-gulonic acid, 1.2 g (3.4 mmol), was dissolved in 50 ml of water, to which a solution of 1.8 g (8.5 mmol) of sodium carbonate in 5 ml of water was added and stirred at 40° C. for about 2 hours. Quantitative analysis of the reaction mixture according to the method described in Reference Example 1 showed that 1.10 g (yield: 91.9%) of L-ascorbic acid was present with 0.05 g of 2-keto-L-gulonic acid.

後処理

  1. additionwas added

出典と根拠

ORDレコード
ord-364e08654ad248f99e2281842bf19784
出典データセット
uspto-grants-1989_07
特許番号
US04845246

関連ノート

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