反応 #1076748

ord-41998616a7dd415388b9f444902f1e40

反応方程式

[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

反応物

—
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

試薬

なし

溶媒

O
water
O
water

反応条件

温度
50°CELSIUS
詳細条件
See reaction.notes.procedure_details.

後処理

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

実験手順

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.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US06458351B2uspto-grants-2002_10