4-nitrobenzothiazol-2-amine
- Product Name
- 4-nitrobenzothiazol-2-amine
- CAS No.
- 6973-51-9
- Chemical Name
- 4-nitrobenzothiazol-2-amine
- Synonyms
- 4-nitrobenzothiazol-2-amine;2-AMino-4-nitrobenzothiazole;2-Benzothiazolamine, 4-nitro-;4-nitrobenzo[d]thiazol-2-aMine;2-Benzothiazolamine,4-nitro-(9CI)
- CBNumber
- CB71258179
- Molecular Formula
- C7H5N3O2S
- Formula Weight
- 195.2
- MOL File
- 6973-51-9.mol
4-nitrobenzothiazol-2-amine Property
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- Appearance
- Light yellow to yellow Solid
N-Bromosuccinimide Price
- Product number
- W7947
- Product name
- 4-Nitrobenzo[d]thiazol-2-amine
- Packaging
- 250mg
- Price
- $192
- Updated
- 2021/12/16
- Product number
- 031231
- Product name
- 4-Nitro-1,3-benzothiazol-2-amine
- Packaging
- 500mg
- Price
- $220
- Updated
- 2021/12/16
- Product number
- 031231
- Product name
- 4-Nitro-1,3-benzothiazol-2-amine
- Packaging
- 1g
- Price
- $338
- Updated
- 2021/12/16
- Product number
- 35227
- Product name
- 4-Nitrobenzo[d]thiazol-2-amine
- Purity
- 95+%
- Packaging
- 1000mg
- Price
- $780
- Updated
- 2021/12/16
- Product number
- CHM0156021
- Product name
- 4-NITRO-1,3-BENZOTHIAZOL-2-AMINE
- Purity
- 95.00%
- Packaging
- 500MG
- Price
- $791.18
- Updated
- 2021/12/16
4-nitrobenzothiazol-2-amine Chemical Properties,Usage,Production
Synthesis
333-20-0
88-74-4
6973-51-9
GENERAL METHODS: A solution of 2-nitroaniline (2 mmol) in acetonitrile (15 ml) was slowly added to a solution of potassium thiocyanate (8 mmol) in acetonitrile (15 ml). Subsequently, 0.06 g (30 mol%) of BF3/SiO2 nanocatalyst was added to the reaction system and the mixture was placed in an ice salt bath and mechanically stirred for 30 min. A solution of bromine (4 mmol, 0.2 ml) in acetonitrile (3 ml) was slowly added through a dropping funnel, and the rate of acceleration of the drop was controlled to ensure that the reaction temperature did not exceed 0 °C. After the bromine solution was added, the reaction was continued to be stirred at room temperature for 4 h, during which the progress of the reaction was monitored by TLC. Upon completion of the reaction, the reaction mixture was poured into water, heated in a 70 °C water bath and thermofiltered to remove the catalyst. The catalyst was washed with acetone and recycled for reuse. The filtrate was neutralized with 10% NaOH solution and the precipitated solid was collected by filtration, dried and recrystallized with ethanol (10 ml) to give the target product 2-amino-4-nitrobenzothiazole. The structure of the product was confirmed by physical properties and spectral data (FT-IR, 1H NMR, 13C NMR) and verified by comparison with known standards. Preparation data for 6-bromo-1,3-benzothiazol-2-amine (2e): yellow solid; 93% yield; melting point 202-204 °C (literature value 203 °C); FT-IR (KBr, cm-1 ): 3315, 3012, 2835, 1580, 1476, 1261, 920, 742, 512; 1H NMR (400 MHz, CDCl3) δ ppm: 5.44 (s, 2H, NH2), 7.4-7.5 (d, 2H, Ar-H), 7.71 (s, 1H, Ar-H); 13C NMR (100 MHz, DMSO-d6) δ ppm: 119, 120.9, 125.15, 126.07, 133.1, 152.15, 167.75. 167.75.
References
[1] Synlett, 2012, vol. 23, # 15, p. 2219 - 2222
[2] Research on Chemical Intermediates, 2016, vol. 42, # 12, p. 7855 - 7868
4-nitrobenzothiazol-2-amine Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-nitrobenzothiazol-2-amine manufacturers
- Product
- 4-nitrobenzothiazol-2-amine 6973-51-9
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-10-18
- Product
- 4-nitrobenzothiazol-2-amine 6973-51-9
- Price
- US $1.00-2.00/KG
- Min. Order
- 1KG
- Purity
- 95%-99%
- Supply Ability
- 100kg
- Release date
- 2019-08-28