1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE
- Product Name
- 1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE
- CAS No.
- 1646-54-4
- Chemical Name
- 1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE
- Synonyms
- Dibromodurene;1,4-Dibromodurene;3,6-Dibromodurene;6-TETRAMETHYLBENZENE;1,4-Dibromotetramethylbenzene;1,2,4,5-Tetramethyl-3,6-dibromobenzene;1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE;3,6-Dibromo-1,2,4,5-tetramethylbenzene;4,6-Dibromo-1,2,4,5-tetramethylbenzene;Benzene,1,4-dibroMo-2,3,5,6-tetraMethyl-
- CBNumber
- CB4683764
- Molecular Formula
- C10H12Br2
- Formula Weight
- 292.01
- MOL File
- 1646-54-4.mol
1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE Property
- Melting point:
- 202-204 °C
- Boiling point:
- 307.7±37.0 °C(Predicted)
- Density
- 1.562±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- soluble in Toluene
- form
- powder to crystal
- color
- White to Almost white
- EPA Substance Registry System
- Benzene, 1,4-dibromo-2,3,5,6-tetramethyl- (1646-54-4)
Safety
- HS Code
- 2903.99.8001
N-Bromosuccinimide Price
- Product number
- S706760
- Product name
- 1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE
- Purity
- Aldrich<sup>CPR</sup>
- Packaging
- 1 unit
- Price
- $185
- Updated
- 2025/07/31
- Product number
- S706760
- Product name
- 1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE
- Purity
- AldrichCPR
- Packaging
- 50MG
- Price
- $179
- Updated
- 2024/03/01
- Product number
- D5168
- Product name
- 1,4-Dibromo-2,3,5,6-tetramethylbenzene
- Packaging
- 1G
- Price
- $76
- Updated
- 2025/07/31
- Product number
- D5168
- Product name
- 1,4-Dibromo-2,3,5,6-tetramethylbenzene
- Packaging
- 5G
- Price
- $222
- Updated
- 2025/07/31
- Product number
- D448358
- Product name
- 3,6-Dibromodurene
- Packaging
- 1g
- Price
- $100
- Updated
- 2021/12/16
1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE Chemical Properties,Usage,Production
Synthesis
95-93-2
1646-54-4
1. 1,2,4,5-tetramethylbenzene (25.0 g, 0.18 mol) and 150 mL of methylene chloride were added to a dry three-necked flask with stirring until completely dissolved. 2. Iodine (I2, 1.0 g, 3.94 mmol) was added to the solution as a catalyst. 3. Under stirring, bromine (Br2, 24 mL, 74.6 g, 0.47 mol) dissolved in a 100 mL of dichloromethane. 4. After the dropwise addition was completed, the reaction mixture was heated to reflux and held for 1.5 h. 5. After the reaction was completed, it was cooled to room temperature and the reaction was quenched by the addition of 5 M aqueous sodium hydroxide (50 mL). 6. The solid product was collected by filtration, washed with deionized water, and dried to afford 1,4-dibromo-2,3,5,6-tetramethylbenzene in 93% yield ( The product was characterized by 1H NMR (500 MHz, CDCl3) and 13C NMR (125.68 MHz, CDCl3): 1H NMR δ 2.48 (s, 12H); 13C NMR δ 135.2, 128.3, 22.4. 8. The 1H NMR spectrum and structure of the product are shown in Figure 1.
References
[1] Patent: KR2015/112649, 2015, A. Location in patent: Paragraph 0110-0112
[2] Patent: US2011/130593, 2011, A1. Location in patent: Page/Page column 6
[3] Angewandte Chemie - International Edition, 2016, vol. 55, # 9, p. 3049 - 3053
[4] Angew. Chem., 2016, vol. 128, # 9, p. 3101 - 3105,5
[5] Bulletin of the Chemical Society of Japan, 1989, vol. 62, # 2, p. 439 - 443
1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE Preparation Products And Raw materials
Raw materials
Preparation Products
1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE Suppliers
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- Fax
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- info@specs.net
- Country
- The Netherlands
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- 6833
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View Lastest Price from 1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE manufacturers
- Product
- 1,4-Dibromo-2,3,5,6-tetramethylbenzene 1646-54-4
- Price
- US $8.00-119.00/g
- Min. Order
- 5g
- Purity
- 0.98
- Supply Ability
- 25kg
- Release date
- 2024-04-12
- Product
- 1,4-DIBROMO-2,3,5,6-TETRAMETHYLBENZENE 1646-54-4
- Price
- US $0.01/KG
- Min. Order
- 1KG
- Purity
- 98%； 99%
- Supply Ability
- 1kg; 5kg; 10kg；25kg
- Release date
- 2020-01-07