Vat Green 3

Using benzoxanthone and 1-aminoanthraquinone as raw materials, the benzoxanthone is first brominated, and then condensed with 1-aminoanthraquinone, alkali fusion, and ring closure to obtain the product. After filtering, neutralizing, washing, drying and crushing, the finished product is obtained. . Add 300-400L of water, 50kg of hydrochloric acid (30%), 90kg of benzoxanthone, 2kg of chlorobenzene, 35kg of bromine into the reaction pot, raise the temperature to 70-75℃, keep it for 1.5h, and then slowly add 10% sodium hypochlorite solution. 100% 130kg), about 1.5-2h after adding, continue to stir for 1h. After reaching the end of the reaction, add sodium bisulfite solution to decompose unreacted bromine. Cool, filter, wash with water to neutrality, and dry to obtain about 118kg of bromobenzopyranthrone. Add 232.5kg of bromophenanthrone, 160kg of 1-aminoanthraquinone, 50kg of sodium carbonate, and 4.5kg of copper oxide into the condensation pot, mix for 1h, slowly raise the temperature to 200℃, keep the temperature for 2h, and cool and smash when it reaches the end. A mixture of imines. Add 1000kg of butanol and 200kg of potassium hydroxide into the caustic pot, raise the temperature to 100-120°C to dissolve all, then lower the temperature to 90°C, add 240kg of imine mixture, and then raise the temperature to 110°C for 6h. Then, the butanol is evaporated with water vapor, filtered, washed, ground and dried to obtain the finished product.

Mainly used for dyeing and printing of cotton fabrics, but also for dyeing of Victorian/cotton blended fabrics

Molecular Weight:449.5
XLogP3:7.2
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:4
Exact Mass:449.10519334
Monoisotopic Mass:449.10519334
Topological Polar Surface Area:67.3
Heavy Atom Count:35
Complexity:902
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes