...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >process systems for the carbonate interchange reactions of dmc and alcohols: efficient synthesis of catechol carbonate
【24h】

process systems for the carbonate interchange reactions of dmc and alcohols: efficient synthesis of catechol carbonate

机译：碳酸酯交换过程系统dmc的反应和醇:高效合成碳酸苯邻二酚

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A range of organic carbonates was synthesised from dimethylcarbonate (DMC) and different alcohols by base-catalysed carbonate interchange reactions (CIRs). Dimethyl carbonate - used as a green and efficient reagent as well as the reaction solvent - was coupled to methanol-removing systems to break the reaction equilibrium and thus obtain near quantitative yields of the desired carbonates. Two different methanol-removing systems are described, one based on azeotropic distillation (reactive azeotropic distillation, RAD) and one based on methanol absorption (reactive vapour absorption, RVA). A comparison between the two systems is described and some conclusions based on reaction metrics are discussed. The methods were applied to the synthesis of aliphatic asymmetric alkyl-methyl carbonates and to the synthesis of catechol carbonate, using both homogeneous (NaOMe and trioctylmethylphosphonium methylcarbonate, P-8881-MC) as well as heterogeneous (MgO) catalysts.
机译：合成一系列有机碳酸盐dimethylcarbonate (DMC)和不同的醇类base-catalysed碳酸酯交换反应(cir)。有效的试剂和反应溶剂——是methanol-removing系统耦合打破反应平衡,从而获得定量的产量所需的附近碳酸盐。系统描述,基于共沸蒸馏(反应性共沸蒸馏,RAD)和一个基于甲醇吸收(活性蒸汽吸收、RVA)。在两个系统间和一些描述基于反应指标的结论进行了讨论。合成脂肪族不对称alkyl-methyl碳酸盐和邻苯二酚的合成使用齐次(NaOMe和碳酸盐trioctylmethylphosphonium methylcarbonate,p - 8881 - mc)以及异构(分别)催化剂。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号