1.Mazindol was synthesized by four steps from chlorobenzene and phthalic anhydride in an overall yield of 23.4%.

1.以氯和邻二甲酸酐为起始原料，四步工序合哚，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.

2.以邻二甲酸酐为原料,、脱水、肼、还原等步骤合了3-氨基邻二甲酰肼。

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.

3.以酐和取代为原料,过乙酰、水解及环合反应,合了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。