Abstract
The hydroformylation of 1-decene was conducted in a gas-liquid-liquid system featuring a deep eutectic solvent to enable recycling of the noble metal catalyst. Operation using different phosphine-based ligands was analyzed (Biphephos, Sulfoxantphos and TPPMS) testing five deep eutectic solvents (DES) as polar phases. These were based on choline chloride (ChCl) as hydrogen bond acceptor with glycerol (Gly), ethylene glycol, glycerol carbonate, 1,2-propanediol and urea (U) as hydrogen bond donors, all of renewable origin. Screening of DESs and ligands was made reutilizing the best, being ChCl:U, ChCl:Gly and again ChCl:U the best performing media using Biphephos, Sulfoxantphos and TPPMS, respectively.
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