4-Bromo-2,6-dimethylaniline CAS 24596-19-8
4-Bromo-2,6-dimethylaniline Basic information
| Product Name: | 4-Bromo-2,6-dimethylaniline |
| Synonyms: | TIMTEC-BB SBB002410;2,6-Dimethyl-4-bromoaniline;2,6-Xylidine, 4-bromo-;2-Amino-5-bromo-m-xylene, 4-Bromo-2,6-xylidine;4-BroMo-2,6-diMethylaniline, 97+%;4 - broMine - 2, 6 - diMethylaniline;Benzenamine, 4-bromo-2,6-dimethyl-;4-bromo-2,6-dimethylaniline,98% |
| CAS: | 24596-19-8 |
| MF: | C8H10BrN |
| MW: | 200.08 |
| EINECS: | 246-337-9 |
| Product Categories: | Anilines, Amides & Amines;Bromine Compounds;Benzenes;Aniline;Aromatic Halides (substituted);bc0001 |
| Mol File: | 24596-19-8.mol |
4-Bromo-2,6-dimethylaniline Chemical Properties
| Melting point | 48-51 °C (lit.) |
| Boiling point | 120°C 0,2mm |
| density | 1.4423 (rough estimate) |
| refractive index | 1.5748 (estimate) |
| Fp | >230 °F |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Chloroform, Methanol |
| pka | 3.60±0.10(Predicted) |
| form | Liquid |
| color | Clear yellow to orange to amber |
| BRN | 1936300 |
| InChI | InChI=1S/C8H10BrN/c1-5-3-7(9)4-6(2)8(5)10/h3-4H,10H2,1-2H3 |
| InChIKey | QGLAYJCJLHNIGJ-UHFFFAOYSA-N |
| SMILES | C1(N)=C(C)C=C(Br)C=C1C |
| CAS DataBase Reference | 24596-19-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzenamine, 4-bromo-2,6-dimethyl-(24596-19-8) |
Safety Information
| Hazard Codes | Xi,Xn |
| Risk Statements | 38-43-36/37/38-20/21/22 |
| Safety Statements | 36/37-36/37/39-26 |
| RIDADR | UN2811/6.1/III |
| WGK Germany | 3 |
| F | 8-10-23 |
| Hazard Note | Harmful |
| HazardClass | 6.1 |
| HS Code | 29214990 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 3 Dermal Acute Tox. 3 Inhalation Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 1 Carc. 2 Skin Irrit. 2 STOT SE 3 |
| Chemical Properties | brown crystals |
| Uses | 4-Bromo-2,6-dimethylaniline has been used in the preparation of:
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| Reactions | 4-Bromo-2,6-dimethylaniline has been shown to react with acid solutions to form hydrogen bromide gas and ammonium chloride crystals. |
| Synthesis | 87-62-7 24596-19-8 The general procedure for the synthesis of 4-bromo-2,6-dimethylaniline from 2,6-dimethylaniline was as follows: 1-methoxy-3,5-dimethylbenzene (100 mg, 0.73 mmol), N-bromosuccinimide (NBS, 260 mg, 1.46 mmol), and a stainless steel ball (5 mm in diameter) were placed in a 10 mL stainless steel grinding jar. The ball milling reaction was carried out and the reaction process was monitored by thin layer chromatography (TLC) and proton nuclear magnetic resonance (1H NMR). Upon completion of the reaction, the reaction mixture was transferred to 30 mL of ethyl acetate and cooled at 0°C. The filtrate (containing product) and precipitate (spent succinimide) were obtained by filtration through filter paper and separated. The filtrate was concentrated under vacuum to give 250 mg (85% yield) of 4-bromo-2,6-dimethylaniline (2b) as a colorless powder. To test the efficiency of the large-scale reaction, monobromination was carried out under the same conditions using 1.3 g of 1-methoxy-3,5-dimethylbenzene for 1 h. The product was isolated in 87% yield. During the reaction, the grinding equipment was suspended and a small amount of sample was removed from the reaction tank for TLC and 1H NMR analysis, after which the reaction was continued, and the time of this operation was not included in the total reaction time. |
| References | [1] Tetrahedron Letters, 2005, vol. 46, # 51, p. 8959 - 8963 [2] Tetrahedron Letters, 2009, vol. 50, # 9, p. 1007 - 1009 [3] Synthetic Communications, 2010, vol. 40, # 5, p. 647 - 653 [4] Synthetic Communications, 2009, vol. 39, # 23, p. 4212 - 4220 [5] Journal fuer Praktische Chemie (Leipzig), 1988, vol. 330, # 2, p. 161 - 174 |
4-Bromo-2,6-dimethylaniline Preparation Products And Raw materials
| Raw materials | 2-(4-bromo-2,6-dimethylphenoxy)propanamide-->2,6-Dimethylaniline-->N-Bromosuccinimide |
| Preparation Products | (E)-3-(4-amino-3,5-dimethylphenyl)acrylonitrile-->Boron Standard Metal Solution-->4-AMINO-3,5-DIMETHYL-BENZONITRILE-->4-bromo-2,6-dimethylbenzoic acid-->2,5-DIBROMO-M-XYLENE-->5-BROMO-2-IODO-M-XYLENE |
