1.Mazindol was synthesized by four steps from chlorobenzene and phthalic anhydride in an overall yield of 23.4%.
以氯和甲酸酐为起始原料，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.
以甲酸酐为原料,经硝化、脱水、肼化、还原等步骤合成了3-氨基甲酰肼。
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.
和
甲酸酐为起始原料，经四步工序合成马吲哚，总收率为23．4％。
