InBr3–[bmim]PF6: a novel and recyclable catalytic system for the synthesis of 1,3-dioxane derivatives
Green Chemistry Pub Date: 2003-03-06 DOI: 10.1039/B212044P
Abstract
Alkenes smoothly undergo condensation with paraformaldehyde in the presence of 10 mol% indium tribromide in ionic liquids (ILs) such as 1-butyl-3-methylimidazolium hexafluorophosphate [bmim]PF6 or 1-butyl-3-methylimidazolium tetrafluoroborate [bmim]BF4 under mild reaction conditions to afford the corresponding 1,3-dioxane derivatives in excellent yields with high selectivity. The recovered ionic liquid containing catalyst has been recycled in three to four subsequent runs.
![Graphical abstract: InBr3–[bmim]PF6: a novel and recyclable catalytic system for the synthesis of 1,3-dioxane derivatives](http://scimg.chem960.com/usr/1/B212044P.jpg)
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Journal Name：Green Chemistry
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CAS no.: 89640-58-4
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