微波辅助下酸碱催化水杨酸甲酯与异戊醇酯交换反应的研究

IF 0.9 Q4 ENGINEERING, CHEMICAL Indian Chemical Engineer Pub Date : 2022-06-10 DOI:10.1080/00194506.2022.2085192
Leandro G. Gutierrez, P. Mancini, M. Kneeteman, C. Ferretti
{"title":"微波辅助下酸碱催化水杨酸甲酯与异戊醇酯交换反应的研究","authors":"Leandro G. Gutierrez, P. Mancini, M. Kneeteman, C. Ferretti","doi":"10.1080/00194506.2022.2085192","DOIUrl":null,"url":null,"abstract":"ABSTRACT A procedure was studied for synthesising isoamyl salicylate by transesterifying methyl salicylate with isoamyl alcohol. The transesterification reaction was evaluated using catalysts with different acid-base properties in microwave irradiation or conventional heating. The amounts of methyl salicylate and isoamyl salicylate in samples were analysed by Gas Chromatography. Acids and neutral catalysts showed zero or shallow catalytic activity, while the most actives were the basic catalysts. Methyl salicylate conversions (higher than 60%) were obtained at 120°C in 4 h of reaction under the Microwave irradiation procedure, using 1% wt. Ca(OH)2, MeONa, or LiOH as catalysts. Under these optimised conditions, using LiOH as a catalyst, it could obtain yields of isoamyl salicylate of 98% in 4 h. Finally, under experimental conditions of isoamyl salicylate synthesis, LiOH did not present catalytic homogeneous contribution. GRAPHICAL ABSTRACT","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2022-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Transesterification of methyl salicylate with isoamyl alcohol assisted by microwave irradiation and promoted by acid-basic catalysts\",\"authors\":\"Leandro G. Gutierrez, P. Mancini, M. Kneeteman, C. Ferretti\",\"doi\":\"10.1080/00194506.2022.2085192\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT A procedure was studied for synthesising isoamyl salicylate by transesterifying methyl salicylate with isoamyl alcohol. The transesterification reaction was evaluated using catalysts with different acid-base properties in microwave irradiation or conventional heating. The amounts of methyl salicylate and isoamyl salicylate in samples were analysed by Gas Chromatography. Acids and neutral catalysts showed zero or shallow catalytic activity, while the most actives were the basic catalysts. Methyl salicylate conversions (higher than 60%) were obtained at 120°C in 4 h of reaction under the Microwave irradiation procedure, using 1% wt. Ca(OH)2, MeONa, or LiOH as catalysts. Under these optimised conditions, using LiOH as a catalyst, it could obtain yields of isoamyl salicylate of 98% in 4 h. Finally, under experimental conditions of isoamyl salicylate synthesis, LiOH did not present catalytic homogeneous contribution. GRAPHICAL ABSTRACT\",\"PeriodicalId\":13430,\"journal\":{\"name\":\"Indian Chemical Engineer\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2022-06-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Indian Chemical Engineer\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/00194506.2022.2085192\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Chemical Engineer","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/00194506.2022.2085192","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

摘要

研究了水杨酸甲酯与异戊醇酯交换合成水杨酸异戊酯的工艺。采用不同酸碱性质的催化剂,在微波辐照和常规加热条件下对酯交换反应进行了评价。用气相色谱法分析了样品中水杨酸甲酯和水杨酸异戊酯的含量。酸性和中性催化剂的催化活性为零或较浅,碱性催化剂的催化活性最高。在120°C的微波照射下,以1%重量的Ca(OH)2、MeONa或LiOH为催化剂,在4小时的反应中获得了水杨酸甲酯转化率(高于60%)。在此优化条件下,以LiOH为催化剂,在4 h内得到98%的水杨酸异戊酯收率。最后,在水杨酸异戊酯合成的实验条件下,LiOH没有催化均相贡献。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Transesterification of methyl salicylate with isoamyl alcohol assisted by microwave irradiation and promoted by acid-basic catalysts
ABSTRACT A procedure was studied for synthesising isoamyl salicylate by transesterifying methyl salicylate with isoamyl alcohol. The transesterification reaction was evaluated using catalysts with different acid-base properties in microwave irradiation or conventional heating. The amounts of methyl salicylate and isoamyl salicylate in samples were analysed by Gas Chromatography. Acids and neutral catalysts showed zero or shallow catalytic activity, while the most actives were the basic catalysts. Methyl salicylate conversions (higher than 60%) were obtained at 120°C in 4 h of reaction under the Microwave irradiation procedure, using 1% wt. Ca(OH)2, MeONa, or LiOH as catalysts. Under these optimised conditions, using LiOH as a catalyst, it could obtain yields of isoamyl salicylate of 98% in 4 h. Finally, under experimental conditions of isoamyl salicylate synthesis, LiOH did not present catalytic homogeneous contribution. GRAPHICAL ABSTRACT
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Indian Chemical Engineer
Indian Chemical Engineer ENGINEERING, CHEMICAL-
CiteScore
3.00
自引率
6.70%
发文量
33
期刊最新文献
Unravelling the polymorphic characteristics of carbamazepine through additive-assisted sonocrystallisation CFD simulation of arterial hypotension in a left anterior coronary artery section with potential clinical relevance Mechanical, thermal and biodegradation studies of highly degradable composite films of pectin/guar gum/ polyvinylpyrrolidone with rice crop residues: a future vision of packaging and mulch films Computational intelligence modelling of methylene blue adsorption by metal-organic frameworks Advancements in enzyme-free electrochemical glucose sensor materials
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1