摘要
以杂多酸磷钼酸为催化剂合成了马来海松酸。考察了催化剂用量、溶剂、反应时间及原料配比等对双烯加成反应的影响。实验结果表明 ,松香与马来酸酐摩尔比为 1.7∶1,催化剂质量分数为 2 .0 % ,甲苯作溶剂 ,反应时间 4h ,反应得率可达 78.9%。
Maleopimaric acid can be synthesized by Diels-Alder reaction from rosin and maleic anhydride (catalyzed) by phosphato-molybdic acid. The effects of reaction parameters, such as catalytic amounts, temperature, times and rosin /maleic anhydride molar ratio, were investigated. Based on the experimental results, it is found that with mass part of catalyst 2.0 %, toluene as solvent, reaction time 4 h and rosin/maleic anhydride molar ratio 1.7∶1 the yield of 78.9 % can be obtained.
出处
《林产化学与工业》
EI
CAS
CSCD
2004年第B08期126-128,共3页
Chemistry and Industry of Forest Products
