Reaction of Dialkyltin Methoxide with Carbon Dioxide Relevant to the Mechanism of Catalytic Carbonate Synthesis

Choi, Jun‐Chul; Sakakura, Toshiyasu; Sako, Takeshi

doi:10.1021/ja9900499

Cited by 166 publications

(120 citation statements)

References 16 publications

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“…[2] The second approach is to use CO 2 as a cheap source of carbon to produce high-value chemicals such as methane, higher hydrocarbons, methanol, and formic acid. [5][6][7][8][9][10][11][12][13][14] Onsite conversion of CO 2 to CH 4 on an industrial scale can be economically attractive as it can avoid the expensive distribution process of natural gas. The current conversion processes involve heating CO 2 and H 2 in the presence of metal or metal oxide catalysts.…”

Section: Introductionmentioning

confidence: 99%

Investigations of the Conversion of Inorganic Carbonates to Methane

2009

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Inorganic carbonates, which occur abundantly on earth, constitute an inexpensive natural source of carbon. Therefore, the direct conversion of these carbonates into methane is of considerable importance. Thermal decomposition of transition metal carbonates with the composition MCa(CO(3))(2) (where M=Co, Ni, or Fe, and M/Ca is 1:1) and M(1)M(2)Ca(CO(3))(3) (where M(1)M(2)=CoNi, NiFe, or FeCo, and M(1)/M(2)/Ca is 1:1:2) shows that the reduced transition metals in combination with metal oxide nanoparticles (e.g., Co/CoO/CaO) act as catalysts for the conversion of CO(2) (produced from the carbonates) into methane. The favorable decomposition conditions include heating at 550 degrees C in an H(2) atmosphere for 5-6 h. These catalysts are found to be excellent for the methanation of CaCO(3), exhibiting high efficiency in the utilization of H(2) with 100 % conversion and 100 % selectivity. The best catalyst for conversion of CaCO(3) into CH(4) is Co/CoO/CaO. There are also indications that similar catalysts based on Fe may yield higher hydrocarbons.

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Section: Introductionmentioning

confidence: 99%

Investigations of the Conversion of Inorganic Carbonates to Methane

2009

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“…(1) and (2)]. [9][10][11][12][13] To shift the equilibrium to the product side, the addition of a dimethyl ketal is quite effective. Although the reaction is typically catalyzed by Bu 2 SnA C H T U N G T R E N N U N G (OMe) 2 , more efficient and less toxic catalysts are desired.…”

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confidence: 99%

“…In summary, we have developed new catalytic systems based on Ti IV and cyclic or acyclic polyether ligands, such as decyl-18-crown-6 and (n-C 10 …”

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confidence: 99%

Synthesis of Dimethyl Carbonate from Carbon Dioxide Catalyzed by Titanium Alkoxides with Polyether‐type Ligands

et al. 2008

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“…Taking the carboxylation of propylene glycol with CO 2 as an example, a plausible catalytic cycle is proposed as illustrated in Scheme 30. It involves three steps: (1) the reaction of Bu 2 SnO and propylene glycol gives 2,2-dibutyl-1,3,2-dioxastannolan 18 [114]; (2) since Sn-O bond is known to be susceptible to CO 2 insertion [115], a cyclic tin carbonate 19 is formed through the insertion of CO 2 to 17; (3) subsequent intramolecular nucleophilic attack of alkoxy group at the carbonyl group may cause the production of propylene carbonate along with regenerating dibutyltin oxide. The removal of water is a crucial issue for the reaction by shifting the equilibrium to carbonates.…”

Section: Stannum Compoundsmentioning

confidence: 99%

Transition Metal-Free Incorporation of CO2

Zhang

2015

Topics in Organometallic Chemistry

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Carbon dioxide can be regarded as an ideal C 1 chemical feedstock in both academic and pharmaceutical laboratories owing to its abundance, low cost, non-toxicity, and nonflammability. However, due to CO 2 inherent thermodynamic stability and kinetic inertness, it is difficult to convert CO 2 to value-added chemicals under mild conditions. In order to overcome such barriers, numerous useful synthetic methodologies by strategically using highly active catalysts have been developed for the incorporation of CO 2 to organic compounds. Transition metal-free compounds are proved to be promising efficacious catalysts able to activate CO 2 molecule for efficient transformation of CO 2 on the basis of mechanistic understanding at the molecular level. This chapter features recent advances at methodologies for catalytic transformation of CO 2 promoted by organocatalysts (e.g., N-heterocyclic carbenes, frustrated Lewis pairs and superbases), ionic liquids, and main group metal to produce value-added chemicals such as linear or cyclic carbonates, quinazoline-2,4(1H,3H )-diones, alkylidene cyclic carbonates, amino acids, and so on.

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Reaction of Dialkyltin Methoxide with Carbon Dioxide Relevant to the Mechanism of Catalytic Carbonate Synthesis

Cited by 166 publications

References 16 publications

Investigations of the Conversion of Inorganic Carbonates to Methane

Investigations of the Conversion of Inorganic Carbonates to Methane

Synthesis of Dimethyl Carbonate from Carbon Dioxide Catalyzed by Titanium Alkoxides with Polyether‐type Ligands

Transition Metal-Free Incorporation of CO2

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