Sulfonation

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Reaction formula

Concrete structure

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Sulfonation with sulfuric acid or sulfuric acid,fuming

We have a sulfuric acid,fuming tank, and we can handle various problems.

Halogenation

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Bromination with bromine or NBS(N-Bromosuccinimide)

Chlorination with phosphorus oxychloride or thionyl chloride

We have a lot of experience using phosphorus oxychloride

Halogenation by Sandmeyer reaction

Oxidation

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Reaction formula

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Oxidation of Aromatic Methyl Groups with Potassium Permanganate

Reduction

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Hydrogenation of nitro group with palladium carbon catalyst

We have a kettle for hydrogen addition and have a lot of manufacturing experience. We can choose the best route according to the conditions.

Reduction of nitroso groups with hydrazine

Reduction of azo groups with hydrazine

Alkylation

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Methylation of amino groups with dimethylsulfate

We have a lot of experience using dimethylsulfate

Alkylation of amino groups with alkyl halides

Friedel-Crafts Reaction

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Alkylation

We have a lot of experience using aluminum chloride and zinc chloride.

Acylation

Nitrilation

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Nitration of aldoxime (amide) by dehydration

Azo-dye Synthesis

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Azo coupling reaction

We have a lot of experience by diazonation not only with sodium nitrite but also with nitrosyl sulfuric acid.

Condensation, Cyclization

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Synthesis of leuco dye

Nitrosation

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Reaction formula

Concrete structure

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Nitrosation with nitrite salt