A green protocol for synthesis of methylene dioximes promoted by an ionic liquid [bmim]BF4

Abstract

The ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, [bmim]BF4, has been demonstrated to be an effective catalyst for synthesis of methylene dioximes. These reactions proceed with excellent yields under shorter reaction times than other reported methods. Furthermore, the ionic liquid [bmim]BF4 can be recycled and reused without loss of catalytic activity.