Homogeneously-acid catalyzed oligomerization of glycerol

Sayoud, Nassim; Vigier, Karine De Oliveira; Cucu, Tatiana; Meulenaer, Bruno De; Fan, Zhaoyu; Lai, Jonathan; Clacens, Jean‐Marc; Liebens, Armin; Jérôme, François

doi:10.1039/c5gc01020a

Cited by 25 publications

(20 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that the products are regioisomers, which differ in terms of the connectivity between glycerol units. Taking into account previous reports on relative abundances of triglycerol regioisomers, [14b] the co‐purified regioisomers of [pG1]‐OH are likely to be those shown in Figure 1 a, b. Their absolute identity was confirmed by synthesizing both isomers separately and comparing their NMR data to those obtained from the products isolated by HPLC (Figure S3).…”

Section: Resultsmentioning

confidence: 63%

Dendritic Oligoglycerol Regioisomer Mixtures and Their Utility for Membrane Protein Research

Urner

Goltsche

Selent

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

Dendrons are an important class of macromolecules that can be used for a broad range of applications. Recent studies have indicated that mixtures of oligoglycerol detergent (OGD) regioisomers are superior to individual regioisomers for protein extraction. The origin of this phenomenon remains puzzling. Here we discuss the synthesis and characterization of dendritic oligoglycerol regioisomer mixtures and their implementation into detergents. We provide experimental benchmarks to support quality control after synthesis and investigate the unusual utility of OGD regioisomer mixtures for extracting large protein quantities from biological membranes. We anticipate that our findings will enable the development of mixed detergent platforms in the future.

show abstract

Section: Resultsmentioning

confidence: 63%

Dendritic Oligoglycerol Regioisomer Mixtures and Their Utility for Membrane Protein Research

Urner

Goltsche

Selent

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…Various homogeneous Lewis acids (triflates and triflimidates) were also efficient (up to 80% conversion and greater than 90% selectivity to oligoglycerols) in the oligomerization of glycerol, especially when Bi(OTf) 3 and Al(TFSI) 3 were used. 57 Alkaline-earth metal oxides (CaO, SrO, BaO, and Mg-Al mixed oxides) also showed high selectivities toward di-and triglycerols (>90%) at 60% conversion. 58 Etherification of Furans HMF can be transformed into high-carbon-number ethers, several of which have energy densities comparable with that of gasoline and have been considered as gasoline additives.…”

Section: Etherification Among Alcoholsmentioning

confidence: 99%

Production of Fuels and Chemicals from Biomass: Condensation Reactions and Beyond

Moteki

Gokhale

et al. 2016

Chem

319

200

View full text Add to dashboard Cite

Renewable resources and bio-based feedstocks may present a sustainable alternative to petrochemical sources to satisfy modern society's ever-increasing demand for energy and chemicals. However, the conversion processes needed for these future bio-refineries will likely differ from those currently used in the petrochemical industry. Biotechnology and chemocatalysis offer routes for converting biomass into a variety of molecules that can serve as platform chemicals. While a host of technologies can be leveraged for biomass upgrading, condensation reactions are significant because they have the potential to upgrade these bio-derived feedstocks while minimizing the loss of carbon and the generation of by-products. This review surveys both the biological and chemical catalytic routes to producing platform chemicals from renewable sources and describes advances in condensation chemistry and strategies for the conversion of these platform chemicals into fuels and high-value chemicals.

show abstract

“…Several types of catalysts have been reported in the literature to polymerize glycerol to PGs, including strong acids [39][40][41], alkali-modified zeolites [42,43], bulk or supported alkaline oxides [3,5,28,44], alkaline carbonate and hydroxide [21,28,45,46] and impregnated basic mesoporous solids [47]. Among all these catalysts, alkaline homogeneous and heterogeneous catalysts gave better performances than acid catalysts in terms of selectivity to PGs [9,41].…”

Section: Catalytic Systemsmentioning

confidence: 99%

Alkaline-Based Catalysts for Glycerol Polymerization Reaction: A Review

Ebadipour¹,

Paul²,

Katryniok³

et al. 2020

Catalysts

View full text Add to dashboard Cite

Polyglycerols (PGs) are biocompatible and highly functional polyols with a wide range of applications, such as emulsifiers, stabilizers and antimicrobial agents, in many industries including cosmetics, food, plastic and biomedical. The demand increase for biobased PGs encourages researchers to develop new catalytic systems for glycerol polymerization. This review focuses on alkaline homogeneous and heterogeneous catalysts. The performances of the alkaline catalysts are compared in terms of conversion and selectivity, and their respective advantages and disadvantages are commented. While homogeneous catalysts exhibit a high catalytic activity, they cannot be recycled and reused, whereas solid catalysts can be partially recycled. The key issue for heterogenous catalytic systems, which is unsolved thus far, is linked to their instability due to partial dissolution in the reaction medium. Further, this paper also reviews the proposed mechanisms of glycerol polymerization over alkaline-based catalysts and discusses the various operating conditions with an impact on performance. More particularly, temperature and amount of catalyst are proven to have a significant influence on glycerol conversion and on its polymerization extent.

show abstract

Homogeneously-acid catalyzed oligomerization of glycerol

Cited by 25 publications

References 49 publications

Dendritic Oligoglycerol Regioisomer Mixtures and Their Utility for Membrane Protein Research

Dendritic Oligoglycerol Regioisomer Mixtures and Their Utility for Membrane Protein Research

Production of Fuels and Chemicals from Biomass: Condensation Reactions and Beyond

Alkaline-Based Catalysts for Glycerol Polymerization Reaction: A Review

Contact Info

Product

Resources

About