ChemInform Abstract: Organic Carbonates as Solvents in Synthesis and Catalysis

Schäffner, Benjamín; Schaffner, F.; Verevkin, Sergey P.; Börner, Armin

doi:10.1002/chin.201046256

Cited by 57 publications

(70 citation statements)

References 1 publication

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“…Heterocyclic structures that incorporate a "carbonate" or "carbamate" fragment as highlighted in Scheme 8, can serve as valuable monomers of polyurethanes and polycarbonates, drugs, electrolytes or reagents in a wide range of chemical transformations, [108][109][110][111][112] and therefore have attracted a great deal of interest in industrial and academic research. The most elegant way of producing these heterocyclic scaffolds involves coupling reactions of CO 2 with readily available epoxides or aziridines in the presence of a suitable catalyst.…”

Section: Heterocyclic Structures Based On Comentioning

confidence: 99%

Sustainable conversion of carbon dioxide: the advent of organocatalysis

2015

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The conversion of carbon dioxide (CO 2 ), an abundant renewable carbon reagent, into chemicals of academic and industrial interest is of imminent importance to create a higher degree of sustainability in chemical processing and production. Recent progress in this field is characterised by a plethora of organic molecules able to mediate the conversion of suitable substrates in the presence of CO 2 into a variety of value-added commodities with advantageous features combining cost-effectiveness, metalfree transformations and general substrate activation profiles. In this review, the latest developments are discussed in the field of CO 2 catalysis with a focus on organo-mediated conversions and their increasing importance as to serve as practicable alternatives for metal-based processes. Also a critical assessment of the state-of-the-art is presented with attention on those features that need further attention to lift the usefulness of organocatalysis in the production of organic molecules of potential commercial interest.

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Section: Heterocyclic Structures Based On Comentioning

confidence: 99%

Sustainable conversion of carbon dioxide: the advent of organocatalysis

2015

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“…This compound class is characterized by low toxicity, high boiling and flash points, low vapor pressure, biodegradability, and high solvency (Liebert 1987;Clements 2003;Schäffner et al 2009). Due to these "green" properties, cyclic organic carbonates represent attractive solvents in synthesis and catalysis (Schäffner et al 2010). Moreover, they have a great potential as building blocks in synthetic chemistry with their variable side chains.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of lignin polyols via oxyalkylation with propylene carbonate

Kühnel

Podschun²,

Saake³

et al. 2014

Holzforschung

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An efficient, nontoxic, and solvent-free oxyalkylation of European beech wood organosolv lignin (OL) has been developed. Two approaches were studied: a direct reaction of lignin with propylene carbonate (PC) and a two-step reaction of lignin with maleic anhydride (MA) followed by oxyalkylation with PC. The structural analysis of lignin polyols was performed by 1 H NMR, 13 C NMR, 31 P NMR, and FTIR spectroscopy. It was demonstrated that PC was able to almost completely oxypropylate aliphatic and phenolic OH groups. Moreover, the carboxylic acid groups of maleated OL were fully oxypropylated by PC. This modification strongly facilitates the generation of a uniform lignin polyol applicable as a biobased component in polyurethanes and polyesters based on cyclic organic carbonates.

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“…The interest in cyclic carbonates is driven by their wide range of chemical and technological applications. 12 In particular, they are the solvents used in lithium ion batteries 13 and also make excellent polar aprotic solvents which can be used as replacements for DMF, DMSO, NMP and HMPA etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of cyclic carbonates from epoxides and carbon dioxide using bimetallic aluminum(salen) complexes

North¹

2012

Arkivoc

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Over the last six years, highly active catalysts for the synthesis of cyclic carbonates from epoxides and carbon dioxide have been developed. Initial studies showed that bimetallic aluminium(salen) complexes [Al(salen)] 2 O formed active catalysts and kinetic studies allowed the catalytic cycle to be determined. The catalysts could be immobilized on silica, allowing them to be used in a gas phase flow reactor as well as in batch reactors. The compatibility of the catalysts with waste carbon dioxide present in power station flue gas has been investigated and studies to enhance the commercial applicability of the catalysts by reducing the cost of their production carried out.

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ChemInform Abstract: Organic Carbonates as Solvents in Synthesis and Catalysis

Cited by 57 publications

References 1 publication

Sustainable conversion of carbon dioxide: the advent of organocatalysis

Sustainable conversion of carbon dioxide: the advent of organocatalysis

Synthesis of lignin polyols via oxyalkylation with propylene carbonate

Synthesis of cyclic carbonates from epoxides and carbon dioxide using bimetallic aluminum(salen) complexes

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