Organic carbonate synthesis from CO2 and alcohol over CeO2 with 2-cyanopyridine: Scope and mechanistic studies

Honda, Masayoshi; Tamura, Masazumi; Nakagawa, Yoshinao; Nakao, Kenji; Suzuki, Kimihito; Tomishige, Keiichi

doi:10.1016/j.jcat.2014.07.022

Cited by 159 publications

(156 citation statements)

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“…In order to evaluate the promoting effect of 2‐cyanopyridine addition much more quantitatively, the reaction conditions were changed for the precise comparison of the DMC formation rate in the presence and the absence of 2‐cyanopyridine . The reaction conditions in the presence of 2‐cyanopyridine were CH 3 OH: 2‐cyanopyridine=200 mmol: 10 mmol, and 0.01 g CeO 2 catalyst.…”

Section: Interaction Between 2‐cyanopyridine and Ceo2 Surfacementioning

confidence: 99%

“…Therefore, we applied the dehydration by 2‐cyanopyridine to the reaction of CO 2 with other alcohols than CH 3 OH. Scheme shows the results of CO 2 +monoalcohols+2‐cyanopyridine, indicating that high yield of the carbonates was obtained from primary alcohols, however, it is not easy to get the organic carbonates from CO 2 +secondary or tertiary alcohols …”

Section: Synthesis Of Organic Carbonates From Co2+alcohols Over Ceo2 mentioning

confidence: 99%

“…The reaction conditions in the presence of 2‐cyanopyridine were CH 3 OH: 2‐cyanopyridine=200 mmol: 10 mmol, and 0.01 g CeO 2 catalyst. Figure shows the reaction time dependence of DMC amount, where the amount of DMC was below 2 mmol and much smaller than the amount of 2‐cyanopyridine (10 mmol), and the amount of DMC in the absence of 2‐cyanopyridine was clearly smaller than that at the equilibrium . Therefore, the reaction conditions are suitable to the evaluation of the formation rate of DMC.…”

Section: Interaction Between 2‐cyanopyridine and Ceo2 Surfacementioning

confidence: 99%

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CO₂ Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO₂ Catalyst in the Presence and Absence of 2‐Cyanopyridine

Tomishige

Tamura

Nakagawa

2018

The Chemical Record

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Recent progress on the CeO2 catalyzed synthesis of organic carbonates, ureas, and carbamates from CO2+alcohols, CO2+amines, and CO2+alcohols+amines, respectively, is reviewed. The reactions of CO2 with alcohols and amines are reversible ones and the degree of the equilibrium limitation of the synthesis reactions is strongly dependent on the properties of alcohols and amines as the substrates. When the equilibrium limitation of the reaction is serious, the equilibrium conversion of the substrate and the yield of the target product is very low, therefore, the shift of the equilibrium reaction to the product side by the removal of H2O is essential in order to get the target product in high yield. One of the effective method of the H2O removal from the related reaction systems is the combination with the hydration of 2‐cyanopyridine to 2‐picolinamide, which is also catalyzed by CeO2.

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Section: Interaction Between 2‐cyanopyridine and Ceo2 Surfacementioning

confidence: 99%

Section: Synthesis Of Organic Carbonates From Co2+alcohols Over Ceo2 mentioning

confidence: 99%

Section: Interaction Between 2‐cyanopyridine and Ceo2 Surfacementioning

confidence: 99%

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CO₂ Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO₂ Catalyst in the Presence and Absence of 2‐Cyanopyridine

Tomishige

Tamura

Nakagawa

2018

The Chemical Record

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“…Cerium oxide (CeO 2 ) [19][20][21][22][23][24], zirconium oxide (ZrO 2 ) [19,[25][26][27][28][29][30], vanadium oxide (V 2 O 5 ) [13,31], titanium oxide (TiO 2 ) [32] and tin oxide (SnO 2 ) [26] have been investigated over the past few years in an attempt to maximize the catalytic performance and enhancing the production rate of DMC.…”

Section: Introductionmentioning

confidence: 99%

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

Saada

Kellici

Heil³

et al. 2015

Applied Catalysis B: Environmental

130

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“…18 According to their work, the formation of methyl picolinate is attributed to the reaction of 2-picolinamide with methanol, producing ammonia (Reaction II). The formation of methyl carbamate is then attributed to the reaction of ammonia with DMC (Reaction III).…”

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confidence: 99%

Continuous DMC Synthesis from CO₂ and Methanol over a CeO₂ Catalyst in a Fixed Bed Reactor in the Presence of a Dehydrating Agent

2014

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ABSTRACT:Methanol and carbon dioxide are continuously and efficiently converted to dimethyl carbonate (DMC) over CeO 2 catalyst using 2-cyanopyrindine as a recyclable dehydrating agent in a fixed bed reactor.The process was operated over a wide range of pressure (1-300 bar) by feeding CO 2 and the stoichiometric amount of methanol and 2-cyanopyrinde mixture into the reactor. The study shows successful demonstration of direct DMC synthesis mediated by dehydrating agent with outstanding

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Organic carbonate synthesis from CO2 and alcohol over CeO2 with 2-cyanopyridine: Scope and mechanistic studies

Cited by 159 publications

References 100 publications

CO₂ Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO₂ Catalyst in the Presence and Absence of 2‐Cyanopyridine

CO₂ Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO₂ Catalyst in the Presence and Absence of 2‐Cyanopyridine

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

Continuous DMC Synthesis from CO₂ and Methanol over a CeO₂ Catalyst in a Fixed Bed Reactor in the Presence of a Dehydrating Agent

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Organic carbonate synthesis from CO2 and alcohol over CeO2 with 2-cyanopyridine: Scope and mechanistic studies

Cited by 159 publications

References 100 publications

CO2 Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO2 Catalyst in the Presence and Absence of 2‐Cyanopyridine

CO2 Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO2 Catalyst in the Presence and Absence of 2‐Cyanopyridine

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

Continuous DMC Synthesis from CO2 and Methanol over a CeO2 Catalyst in a Fixed Bed Reactor in the Presence of a Dehydrating Agent

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Product

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CO₂ Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO₂ Catalyst in the Presence and Absence of 2‐Cyanopyridine

CO₂ Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO₂ Catalyst in the Presence and Absence of 2‐Cyanopyridine

Continuous DMC Synthesis from CO₂ and Methanol over a CeO₂ Catalyst in a Fixed Bed Reactor in the Presence of a Dehydrating Agent