Asymmetric hydrogenation of imines with a recyclable chiral frustrated Lewis pair catalyst†
Abstract
A camphor based chiral phosphonium hydrido borate zwitterion was synthesised and successfully applied in the enantioselective hydrogenation of imines with selectivities up to 76% ee. The high stability of the novel chiral FLP-system enables effective recycling of the metal-free catalyst.
- This article is part of the themed collection: Frustrated Lewis Pairs