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以水杨酸为原料经氯化制得 3,5-二氯水杨酸 ,所得产物在酸催化下与异戊醇进行酯化反应得到中间体 3,5-二氯水杨酸异戊酯 ,该中间体再与高活性的草酰氯反应获得高效化学发光材料双 ( 6-甲酸异戊酯 -2 ,4 -二氯苯基 )草酸酯。这种方法实验条件温和 ,原料简便易得 ,步骤简单 ,收率高达84 % ,成本低。此外还对其发光现象进行了考察 ,结果表明 ,当过氧化氢浓度比草酸酯浓度过量 0 .6‰～1‰时 ,发光持续时间长 ,强度大。
Salicylic acid as raw material obtained by chlorination 3,5-dichlorosalicylic acid, the resulting product was acid catalyzed esterification with isoamyl alcohol intermediates 3,5-dichlorosalicylic acid isoamyl ester The intermediate was then reacted with highly active oxalyl chloride to obtain bis (6 - ethyl - 6 - oxo) oxalate, a highly efficient chemiluminescent material. The method has the advantages of mild experimental conditions, simple and easy-to-use raw materials, simple steps, high yield of 84% and low cost. In addition, the phenomenon of luminescence was also investigated. The results showed that when the concentration of hydrogen peroxide is more than 0.6 ‰ ~ 1 ‰, the luminescence has a long duration and high intensity.