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Pharmaceuticals: mainly used in the synthesis of new anti-malarial drug nitroquine and a variety of anti-inflammatory and antiseptic drugs, used in the preparation of non-peptide anti-angiotensin and other main;
Dyestuffs: mainly used in the synthesis of dyestuff intermediate 2-cyano-4-nitroaniline;
Uses and functions of 2-chlorobenzonitrile.
Pharmaceuticals: mainly used in the synthesis of new anti-malarial drug nitroquine and a variety of anti-inflammatory and antiseptic drugs, used in the preparation of non-peptide anti-angiotensin and other main;
Dyestuffs: mainly used in the synthesis of dyestuff intermediate 2-cyano-4-nitroaniline;
Preparation method of 2-chlorobenzonitrile.
The o-toluene is metered and enters the o-toluene vaporiser. Liquid ammonia is vaporised under reduced pressure in cylinders and metered through a flow meter into the ammonia heater. Air is pressurised by an air compressor, then metered through a flow meter and enters the reactor together with o-chlorotoluene and ammonia. After the reaction, the o-chlorobenzonitrile product is captured by the trap, while the tail gas and waste water enter the three-waste treatment section.
Product method of Bulk 2-chlorobenzonitrile Powder.
Obtained by the reaction of o-chlorobenzoic acid and urea: mix o-chlorobenzoic acid, sulfamic acid and urea and heat to melt at about 140°C, react violently under stirring and release a large amount of gas, and the temperature automatically rises to 220-230°C, the reaction is for 2 h. Then it is cooled down to below 15°C, filtered, and the obtained solids are washed to neutrality with 3% ammonia and water respectively, and then dried to obtain the finished products.
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