5. Methods By the reactions of nitration, acylation, halogenation, condensation, a new 5-aminosalicylic acid derivative was synthesized from salicylic acid and acetaminophen.
6. The five quinazoline compounds were prepared by using 2 amino 4,5 dimethoxy benzoic acid as original material, which underwent ring closing, halogenation and substitution.
方法：以2氨基4 ，5二甲氧基苯甲酸为原料，分别经过环化、氯代、取代等反应，合成了五种目标化合物。
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7. In this thesis, the halogenation of Copper phthalocyanine and the method of preparation and the reaction mechanism of lower chlorinated Copper phthalocyanine were discussed.
本文较系统地论述了铜酞菁的卤代反应，制备不同卤代铜酞菁的方法，铜酞菁的低氯代的反应历程；
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8. Introduction of 11-hydroxy group into steroids by chemical methods, such as keto-reduction, halogenation-dehalogenation, borane-hydrogen peroxide and peroxidation-reduction are reviewed.
9. This review deals with the recent application of strongly basic anion exchange resins as polymer supported reagents in oxidation, reduction, halogenation and nucleophilics substitutions, etc.
本文综述了近十年来强碱阴离子交换树脂支载的高分子试剂在氧化，还原，卤化和亲核取代反应中的应用。
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10. This review deals with the recent application of strongly basic anion exchange resins as polymer supported reagents in oxidation, reduction, halogenation and nucleophilics substitutions, etc.
