2-乙基蒽醌的合成工艺改进研究

Study of the improved process for the synthesis of 2-ethylanthraqunione

以2-(4-乙基苯甲酰)苯甲酸(BE酸)为原料、20%发烟硫酸为催化剂,在1,2-二氯乙烷溶剂中进行催化闭环反应,考察了溶剂用量、BE酸和发烟硫酸配比、反应时间对2-乙基蒽醌合成的影响.

2-Ethylanthraqunione was prepared by cyclization from 2-（4-ethylbenzoyl） benzoic acid in 1,2-dichloroethane with 20% fuming sulphutic acid as catalyst. The influences of solvent quantity,ratio of 2-（4-ethylbenzoyl） benzoic acid and fuming sulphutic acid, reaction time on the yield of 2-ethylanthraquinone were discussed.