Fluoroalkyldistannoxane Catalysts for Transesterification in Fluorous Biphase Technology
作者:Jiannan Xiang、Akihiro Orita、Junzo Otera
DOI:10.1002/1615-4169(200201)344:1<84::aid-adsc84>3.0.co;2-c
日期:2002.1
recourse to fluorous biphase technology. The fluoroalkyldistannoxane catalysts enable transesterification in FC-72 solvent to furnish 100% yields of the desired esters by use of reactants ester and alcohol in a 1 : 1 ratio. The catalysts also work in FC-72/organic solvent system as well as in toluene alone. A number of esters and alcohols bearing various functional groups are employable. The catalysts can
依靠氟双相技术,已经提出了新颖,实用的酯交换方法。氟烷基二氧杂环己烷烷催化剂能够通过使用比例为1的反应物酯和醇,在FC-72溶剂中进行酯交换反应,以提供100%的所需酯产率。该催化剂还可以在FC-72 /有机溶剂系统以及仅在甲苯中使用。可以使用许多带有各种官能团的酯和醇。催化剂可以完全回收再利用。更方便地,从反应混合物中分离出的FC-72中的催化剂溶液直接用于下一步反应。