phthalic anhydride

In this paper, the synthesis of 2 - chloranthraquinone and 2 - aminoanthraquinone was studied.It was prepared from phthalic anhydride by acetyiation, hydrolysis and cyclization.

以苯酐和取代苯为料,经过乙酰化、水解及环合反应,合成了2-氯醌和2-氨基醌,并对影响收率的工艺条件进行了研究。

Amino phthalhydrazide was synthesized from phthalic anhydride by four steps of nitrationidehydration, hydrazinolysis and reduction reactions in this paper.

以邻苯二甲酸酐为料,经硝化、脱水、肼化、还骤合成了3-氨基邻苯二甲酰肼。

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料，经四工序合成马吲哚，总收率为23．4％。