1. Mazindol was synthesized by four steps from chlorobenzene and phthalic anhydride in an overall yield of 23.4%.
   以氯苯和邻苯二甲酸酐为起始原料，经四步工序合成马吲哚，总收率为23．4％。
2. Amino phthalhydrazide was synthesized from phthalic anhydride by four steps of nitrationidehydration, hydrazinolysis and reduction reactions in this paper.
   以邻苯二甲酸酐为原料,经硝化、脱水、肼化、还原等步骤合成了3-氨基邻苯二甲酰肼。
3. In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.
   以苯酐和取代苯为原料,经过乙酰化、水解及环合反应,合成了2-氯蒽醌和2-氨基蒽醌,并对影响收率的工艺条件进行了研究。

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