Rhodium catalyzed hydroformylation of 1-decene in low melting mixtures based on various cyclodextrins and N,N′-dimethylurea

Recent advances in the application of deep eutectic solvents as sustainable media as well as catalysts in organic reactions

“…141 It was also established that the conversion increased with the 1-decene solubility and decreased with the LMM viscosity. It was found that the catalytic activity of Rh(acac)(CO) 2 in the mixture between DMU and RAME-β-CD is higher than those reported for classical systems based on CD in water.…”

“…The best result was obtained in the case of RAME-b-CD (30/70) (Scheme 83). 141 It was also established that the conversion increased with the 1-decene solubility and decreased with the LMM viscosity.…”

Further Extending the Dilution Range of the “Solvent-in-DES” Regime upon the Replacement of Water by an Organic Solvent with Hydrogen Bond Capabilities

“…While mixing water in controlled amountse.g., within the so-called water-in-DES regimehas been widely accepted as a simple and practical way of altering DES chemical and thermodynamic properties (with viscosity and conductivity exhibiting an exponential evolution along with water content), ,,− the study of DES dilutions with nonaqueous HB-forming solvents remains basically unexplored. It is worth noting the obvious interest of using organic solvents in those cases where (1) any reagent or byproduct is nonsoluble, nonmiscible, or unstable in water, − (2) the presence of water might alter the reaction kinetics (for instance, when water is a byproduct), − or (3) a cosolvent with low vapor pressure allows exploring reaction processes (at high temperatures or in solvothermal conditions, among others) not suitable for water. − …”

Synthetic Application of Cyclodextrins in Combination with Metal Ions, Complexes, and Metal Particles

“…This activity is about four times higher than those found with 39 a ‐raMeβCD. Hydroformylation of dec‐1‐ene was also accomplished in low‐melting mixtures of N , N ′‐dimethylurea and CDs [105] . The best performance was found utilizing a mixture with 30 wt % raMeβCD affording 99 % conversion and 90 % aldehyde selectivity with an l / b ratio of 2.2 [(Rh(acac)(CO) 2 , TPPTS 5 equiv., dec‐1‐ene 2000 equiv., 90 °C, 50 bar, 1 h).…”