5,6-Dibromo-1H-indole-2,3-dione
- Product Name
- 5,6-Dibromo-1H-indole-2,3-dione
- CAS No.
- 17826-05-0
- Chemical Name
- 5,6-Dibromo-1H-indole-2,3-dione
- Synonyms
- 5,6-Dibromisatin;5,6-Dibromoisatin;5,6-DibroMoindoline-2,3-dione;5,6-Dibromo-1H-indole-2,3-dione;1H-Indole-2,3-dione, 5,6-dibromo-
- CBNumber
- CB42434652
- Molecular Formula
- C8H3Br2NO2
- Formula Weight
- 304.92
- MOL File
- 17826-05-0.mol
5,6-Dibromo-1H-indole-2,3-dione Property
- storage temp.
- Sealed in dry,Room Temperature
- Appearance
- Orange to red Solid
N-Bromosuccinimide Price
- Product number
- 35924
- Product name
- 5,6-Dibromoindoline-2,3-dione
- Purity
- 95+%
- Packaging
- 250mg
- Price
- $492
- Updated
- 2021/12/16
- Product number
- HCH0366609
- Product name
- 5,6-DIBROMOINDOLINE-2,3-DIONE
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $495.8
- Updated
- 2021/12/16
- Product number
- 35924
- Product name
- 5,6-Dibromoindoline-2,3-dione
- Purity
- 95+%
- Packaging
- 1000mg
- Price
- $780
- Updated
- 2021/12/16
- Product number
- 9351AA
- Product name
- 5,6-Dibromoindoline-2,3-dione
- Packaging
- 5g
- Price
- $1642
- Updated
- 2021/12/16
- Product number
- A252185
- Product name
- 5,6-Dibromoindoline-2,3-dione
- Purity
- 95%
- Packaging
- 100mg
- Price
- $105
- Updated
- 2021/12/16
5,6-Dibromo-1H-indole-2,3-dione Chemical Properties,Usage,Production
Synthesis
6326-79-0
17826-05-0
General procedure for the synthesis of 5,6-dibromoindoline-2,3-dione from 6-bromodihydroindole-2,3-dione: Bromine (0.88 mmol) was slowly added to a solution of acetic acid (9 mL) containing 6-bromoindigo red (0.88 mmol). The reaction mixture was stirred under reflux conditions for 48 hours. Upon completion of the reaction, the mixture was cooled to 0 °C, the solid product was collected by filtration and washed with acetic acid. Subsequently, the crude product was dried in an oven. Purification of the crude product by recrystallization from acetic acid afforded an orange-colored pure product in 57% yield; melting point >270 °C (decomposition). The structure of the product was confirmed by nuclear magnetic resonance hydrogen (1H NMR, 300 MHz, DMSO-d6) and carbon (13C NMR, 75 MHz, DMSO-d6) spectra: 1H NMR (DMSO-d6) δ 7.23 (1H, s, H-7), 7.82 (1H, s, H-4), 11.22 (1H, brs, NH); 13C NMR (DMSO-d6) δ 117.40, 117.64, 119.61, 129.33, 133.81, 150.67, 159.83, 183.12.
References
[1] Tetrahedron Letters, 2011, vol. 52, # 20, p. 2583 - 2585
5,6-Dibromo-1H-indole-2,3-dione Preparation Products And Raw materials
Raw materials
Preparation Products
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