Реакция #1076748

ord-41998616a7dd415388b9f444902f1e40

Уравнение реакции

[Cl-].[Cl-].[Cl-].[Cr+3]
chromium chloride
O=C1O[C@H]([C@@H](O)CO)C(O)=C1O
ascorbic acid
O=C1O[C@H]([C@@H](O)CO)C(O)=C1O
Asc
→
O=C1O[C@H]([C@@H](O)CO)C([O-])=C1O.O=C1O[C@H]([C@@H](O)CO)C([O-])=C1O.O=C1O[C@H]([C@@H](O)CO)C([O-])=C1O.[Cr+3]
Chromium Ascorbate

Реактанты

—
Cr Asc
[Cl-].[Cl-].[Cl-].[Cr+3]
chromium chloride
O=C1O[C@H]([C@@H](O)CO)C(O)=C1O
ascorbic acid
O=C1O[C@H]([C@@H](O)CO)C(O)=C1O
Asc

Реагенты

Нет

Растворители

O
water
O
water

Условия реакции

Температура
50°CELSIUS
Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Другоеto get a green solution
  2. 2
    workup.ADDITIONwas added to the solution
  3. 3
    Другоеto get a dark green solution
  4. 4
    КонцентрированиеThe solution was concentrated in vacuum
  5. 5
    workup.ADDITIONthe large volume of ethanol 90% was added
  6. 6
    Другоеto get a green sediment

Методика

Half gram (1.85 mmole) of chromium chloride (CrCl3) was dissolved in 30 ml of deionized water to get a green solution. 1.0 g (5.5 mmole) of ascorbic acid (Asc) dissolved in 40 ml of deionized water, was added to the solution. The pH of the reaction mixture was adjusted to 4.5 (pK(Asc)4.2), and the reaction mixture was stirred for 3 hours at 50° C. to get a dark green solution. The solution was concentrated in vacuum and the large volume of ethanol 90% was added to get a green sediment. UV-VIS Spectrum for Cr-Asc showed two main absorbance peaks at 263 and 592 nm.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US06458351B2uspto-grants-2002_10