CAJ | 학술논문

以衣康酸为原料合成了柠康酸酐。对合成过程中的各种影响因素进行了详细的分析,对脱水剂类型及用量、催化剂类型及用量等进行了正交试验。正交试验结果显示：最佳配方及工艺条件为催化剂为N,N-二甲基甲酰胺( DMF),用量为衣康酸的0.47倍( w/w),脱水剂为邻二氯苯,用量为衣康酸的3.8倍( w/w),气相收率为95.56%。对合成产物进行了红外光谱和核磁氢谱分析,分析结果显示产品为目标产物。
이의강산위원료합성료저강산항。대합성과정중적각충영향인소진행료상세적분석,대탈수제류형급용량、최화제류형급용량등진행료정교시험。정교시험결과현시：최가배방급공예조건위최화제위N,N-이갑기갑선알( DMF),용량위의강산적0.47배( w/w),탈수제위린이록분,용량위의강산적3.8배( w/w),기상수솔위95.56%。대합성산물진행료홍외광보화핵자경보분석,분석결과현시산품위목표산물。
Citraconic anhydride ( CTA) was synthesized using itaconic acid. The effects of different factors on the synthesis process, dehydrating agent type and dosage, catalyst dosage and type, etc. , were analyzed, the orthogonal test was adopted. The results of orthogonal test showed that the best formulation and process conditions were as follows: the catalyst was N,N-dimethylformamide( DMF) , the amount was 0. 47 times of the itaconic acid ( w/w) , dehydration agent was o-dichlorobenzene, 3. 8 times dosage of itaconic acid ( w/w) , the yield was 95. 56%. The synthetic products were analyzed by IR and 1 H NMR, analysis results showed that the product was the target product.