郭文龙, 崔建兰, 张漪, et al. 微波法聚乙烯醇醇解液合成α-萘乙酸甲酯[J]. 2007, (6).
DOI:
郭文龙, 崔建兰, 张漪, et al. 微波法聚乙烯醇醇解液合成α-萘乙酸甲酯[J]. 2007, (6).DOI:
微波法聚乙烯醇醇解液合成α-萘乙酸甲酯
摘要
采用微波技术
以硫酸氢钠为催化剂
利用聚乙烯醇(PVA)醇解液
与α-萘乙酸合成植物生长调节剂α-萘乙酸甲酯.研究了在微波条件下
辐射功率、辐射时间、物料配比、催化剂用量等对反应的影响.实验结果表明:在微波辐射功率为100 W
辐射时间为30 m in
物质量比n(PVA醇解液)∶n(α-萘乙酸)=31∶1
硫酸氢钠用量为α-萘乙酸质量的58%时条件较佳
产率达93.6%.产品通过折光率测定
红外光谱分析和元素分析进行了表征.
Abstract
By microwave technology
methyl α-naphthylacetate was synthesized from polyvinyl alcohol(PVA) alcoholysis liquor and α-naphthylacetic acid with niter cake as catalyst agent.Influence of the microwave power
the radiation time
the molar ratio of PVA alcoholysis liquor to α-naphthylacetic acid
and the amount of catalyst agent on the reaction were investigated.The results show that
with n(PVA alcoholysis liquor)/n(α-naphthylacetic acid)=31∶1 and m(niter cake)/m(α-naphthylacetic acid)=58∶100
and with 100 W microwave for 30 min
the methyl α-naphthylacetate has the yield of 93.6%.The product was characterized by refractive index test