海萝胶 → DL-酒石酸

HRID 392005

反应方程式

HRID 392005 反应方程式
[C:1]([OH:10])(=[O:9])[C@@H:2]([C@H:4]([C:6]([OH:8])=[O:7])[OH:5])[OH:3].C(O)(=O)[C@H]([C@@H](C(O)=O)O)O.[OH-].[Na+].Cl.[Na+].[Cl-]>[Fe].O>[C:1]([OH:10])(=[O:9])[C@@H:2]([C@@H:4]([C:6]([OH:8])=[O:7])[OH:5])[OH:3]

参与物

8

反应物 5

HCID 313海萝胶2 次HCID 5234Halite (NaCl)2 次HCID 14798二甲基对苯二胺二盐酸HCID 439655DL-酒石酸HCID 444305DL-酒石酸2 次

产物 1

HCID 447315DL-酒石酸

试剂、催化剂与溶剂 2

HCID 23925Stainless steel, powder, -150 mesh催化剂HCID 962聚[6-[4-(4-氰基苯基)苯氧基]己基甲基丙烯酸酯]溶剂

实验过程

A mesotartaric acid containing treatment solution was prepared by heating a solution of 95 g L(+)-tartaric acid, also known as d-tartaric acid, in 1 kg of aqueous 30% w/w NaOH at 118° C. for two hours. After cooling to room temperature, HCl-solution was added to adjust the pH to 6. Depending on the amount and the type of HCl solution used, NaCl or water was added in order to obtain a solution containing 20% w/w of NaCl. Hereafter FeCl2 was added in such an amount that the solution contained 4.8 g Fe″ per 25.5 g of (meso)tartaric acid. In the resulting treatment solution 29.8% w/w of the original L(+)-tartaric acid was transformed into the meso form.

后处理

  1. customto obtain a solution

来源与证据

ORD记录
ord-c585a21b8dbb4a80a4dd0c135d175c20
来源数据集
uspto-grants-2004_10
专利号
US06800263B1

关联笔记

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