2,6-Dimethylaniline CAS 87-62-7
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- Appearance: Yellow liquid
- Assay: 99. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: 2,6-Dimethylaniline Supplement
2,6-Dimethylaniline: The Complete Guide
2,6-Dimethylaniline for Sale
Basic Info of 2,6-Dimethylaniline
2,6-Xylidine; 2-Amino-m-xylene; 2,6-Dimethylaniline Solution
Agrochemicals; Pharmaceutical raw materials; Organic raw materials
What is 2,6-Dimethylaniline?
2,6-Dimethylaniline is an organic substance with the chemical formula C 6 h 3 (CH 3) 2 NH 2. It is among numerous isomeric xylene amines. It is an anemic thick liquid. Derivatives of industrial importance are the anesthetics lidocaine, bupivacaine, mepivacaine and articaine.
Numerous xyleneamines are prepared by nitration of xylene and hydrogenation of nitroaromatic substances, however this technique is inefficient for this isomer. Instead, it is prepared by treating the appropriate xylenol with ammonia in the existence of oxide catalysts.
2,6-Dimethylaniline responds with solid oxidants counteract acid in exothermic reaction to form salt and also water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acyl halides. Mix with solid reducing agents (such as hydrides) may create flammable gaseous hydrogen.
- 2,6-Xylidine is used in drugs, dye intermediates and organic synthesis. It is also used in the production of antioxidants, agriculture, medicine, rubber chemicals and other target organic molecules.
- 2,6-Dimethylaniline is an intermediate of pesticides, medicines and veterinary drugs.
- In the pesticide industry, 2,6-dimethylaniline is used in the production of high-efficiency fungicides metalaxyl, furalaxyl, furaxyl, furaxyl, benalaxyl, antiviral alum and high-efficiency and low-toxic selective herbicide isobutachlor , Teridor (Methachlor) and Imidazolamide, etc.
- In the pharmaceutical industry, 2,6-dimethylaniline is used in the production of anesthetics such as lidocaine hydrochloride, bupivacaine hydrochloride, fencaine hydrochloride, tocalium, and Dujuansu.
- 2,6-Dimethylaniline is the raw material for the production of veterinary drug Jingsongling.
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Preparation of 2,6-Dimethylaniline
Using m-xylene as resources, it is gotten by mixed acid nitration and also catalytic hydrogenation. The procedure is to cool down m-xylene to 0 ～ 5 ℃, add the cooled down combined acid (56.5% sulfuric acid, 28% nitric acid, 15.5% water) in batches, keep the temperature level at 17 ℃ ～ 25 ℃ for the first time, include 3h. Finished, the second time was added at 17-25 ° C in 2h, the final dropwise temperature was 25-30 ° C, the enhancement was finished within 1h, and after that mixed at 25-30 ° C for 30min, the nitrates were divided and also washed with water, and after that minimized pressure The crude item was obtained by distillation, the fraction at 78-85 ° C/666.5 Pa was distilled again, and also 2,6-dimethylnitrobenzene was acquired by cooling down and also condensation.
2,6-dimethylnitrobenzene is minimized, and iron powder and also hydrochloric acid are utilized for stepwise reduction in the past, and iron powder is slowly contributed to 2,6-dimethylnitrobenzene as well as water down hydrochloric acid remedy, and afterwards refluxed after including 30min, cooling, after that including sodium carbonate to neutralize, adding water for distillation to get an oily option, layering, and also drying the oily layer to acquire an item. Catalytic hydrogenation has been utilized to change iron powder decrease. In the visibility of a stimulant, 2,6-dimethylnitrobenzene goes through catalytic hydrogenation to obtain a crude product, which goes through post-treatment to get a product.
The products generated by this method are 2,6-dimethylaniline as well as 2,4-dimethylaniline, while the share of 2,6-dimethylaniline in the response procedure is tiny, which can not satisfy the manufacturing demands. The manufacturing of 2,6-dimethylaniline by o-toluidine alkylation has become the focal point.