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    Sulfonation:

    Chloro-Sulfonation:

    Nitration:

    Nitrosation:

    Acetylation:

    Reduction:

    Hydrogenation (Catalyst:Ni,Pd/C,Pd/Al2O3,Rh/C):

    High Technology/Cost Reduction:

    Halogenation:
     To top
    α-H halogenation:

    Condensation:

    Amination:

    Hydrolysis:

    Hydrolysis Carboxylation:

    Saponification:To top

    Esterfication:

    Desulfonation/Desulfonamide:

    Oxidization:

    Alkyloxydization:

    N-Alkylation:

    Sulfuration:

    CO Insertion:

    Friedel-Crafts:

    Addition Cyclization:

    Ring-opening addition:

    Phosgenation/Triphosgenation:
    To top
    Diazo-coupling:

    Others:
    Recrystallization, Decrease Metal Content Of Product
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