Recyclable Hydroformylation Catalysts of Higher Alkenes Using Immobilized Catalysts and Two-phase Systes

摘要

This article reports on the use of recy- clable catalysts, using different con- cepts, in the hydroformylation of 1-octene employing diphosphine ligands based on the xantene backbone. Amphiphilic diphosphi- nes were developed for the aqueous two-pha- se catalysis, which spontaneously form ag- gregates that are remarkably thermostable. The observed TOF's in the hydroformylation Of 1-octene using ligands that form vesicles Are up to 14 times higher compared to analo- Gue ligands that do not form aggregates.