Usage and synthesis of 2-aminothiazole

0
2K

2-Aminothiazole is white or light yellow crystals. The melting point is 93°C and the boiling point is 140°C (1.47kPa). It is soluble in hot water, dilute hydrochloric acid and 20% sulfuric acid, and slightly soluble in cold water, ethanol and ether.

Uses of 2-Aminothiazole:

1. 2-Aminothiazole is used as a pharmaceutical intermediate for organic synthesis. 2-Aminothiazole is mainly used in the synthesis of Nitrosulfathiazole, Sulfathiazole, Sulfasuxidinum, Carbothiazol, Phthalylsulfathiazole, Oxyquinolinephthalysulfathiazole ), Salazosulfathiazole (Salazosulfathiazole)

2. 2-Aminothiazole is used for gentle Ulmann coupling reaction with 2-chlorobenzoic acid under the guidance of ultrasonic radiation

3. 2-Aminothiazole is used as a pharmaceutical and dye intermediate

2-aminothiazole

Production method of 2-aminothiazole:

2-Aminothiazole is obtained by cyclization of thiourea and chloroacetaldehyde (or ethanol and chlorine, or α, β dichloro ethyl ether). Add hot water, thiourea and α, β-dichloroethyl ether to the reactor. Reflux for 2h under stirring. After cooling, sodium hydroxide solution was added through the dropping funnel to make the solution alkaline and 2-aminothiazole crystals were precipitated. Then add ether to dissolve it. Separate the ether layer, wash with water, dry with anhydrous sodium sulfate, and distill the ether to obtain a crude product. Recrystallize with ethanol to obtain yellow crystals. The yield is 80%, and the melting point is 90°C.

Toxicity classification: Highly toxic acute toxicity oral-rat LD50: 480 mg/kg; intraperitoneal-mouse LD50: 200 mg/kg

Hazardous characteristics of explosives: its nitric acid mixture; or its nitric acid-sulfuric acid mixture heating and exploding

Flammability and hazard characteristics: 2-Aminothiazole is combustible; high temperature produces toxic nitrogen oxide and sulfur oxide fumes

Storage and transportation characteristics: The warehouse is ventilated, low temperature and dry; stored separately from nitric acid and sulfuric acid

Extinguishing agent: dry powder, foam, sand, carbon dioxide, water mist

Clent Chemical is a supplier of 2-aminothiazole, we have professional technology to ensure product quality. If you want to know more about 2-aminothiazole, please continue to pay attention to our website. We will regularly update articles and information related to 2-aminothiazole, and look forward to your visit and consultation.

 

Search
Sponsored
Categories
Read More
Gardening
Mengapa Karangan Bunga Medan Begitu Istimewa?
Medan, ibu kota paling terkenal di provinsi Sumatera Utara, dikenal sebagai kota yang hidup...
By Dewi Purnama 2024-05-31 06:38:15 0 762
Music
Movie free application apk for phones
These are your only truly free options. There may be countless Disney Plus mod apk bundles of...
By Keisha Celina 2021-03-31 09:02:02 0 3K
Other
Hair Restoration Cost
Today, the cost of hair transplantation is a hugely greater value than ever before. The expanded...
By Beverlyhill Beverlyhill 2021-07-02 06:33:46 0 2K
Literature
Soil Amendments Market 2024-2032 Report |Size, Growth, Share, Trends and End Users
  The Soil Amendments Market is experiencing substantial growth and increasing demand,...
By Amelia Brown 2024-04-01 11:02:40 0 776
Art
Latest C-C4HCX-24 Exam Fee, Exam C-C4HCX-24 Cram | C-C4HCX-24 Updated Dumps
After clients pay for our C-C4HCX-24 exam torrent successfully, they will receive the mails sent...
By Fycaqi Fycaqi 2023-02-09 02:03:33 0 1K