Promotion of organotin modified SBA-15 in the selective carboxylation of BPA with DMC

Li, Zhenhuan; Su, Kunmei; Cheng, Bowen; Ming, Jun; Zhang, Lei; Xu, Yongchao

doi:10.1016/j.catcom.2011.02.015

Cited by 10 publications

(5 citation statements)

References 26 publications

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“…ions are the active species in the DMC formation by oxidative carbonylation [6,16]. A large number of experimental studies about the mechanism and kinetics of DMC formation on CuCl [3,6,16] or on Cu-zeolites [49] have been reported. DMC formation was stated to occur via two possible pathways.…”

Section: The Possible Route Of Dmc Formationmentioning

confidence: 99%

“…Its usage is facilitated by its low toxicity, high biodegradability and low persistence [1]. DMC can be used in industry mainly as a fuel additive [2], precursor for synthesis of carbonic acid derivatives, methylating agent [3], methyl sulphate exchanger [4], or an intermediate in the synthesis of polycarbonates and isocyanates [5], carbonylating agent [6], alkylating agent, polar solvent [7], component in the synthesis of polyurethane [8].…”

Section: Introductionmentioning

confidence: 99%

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The Synthesis of Dimethyl Carbonate by the Oxicarbonylation of Methanol Over Cu Supported on Carbon Norit

et al. 2014

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The catalytic activity of Norit supported Cu, Ni and Cu-Ni catalysts was investigated in the synthesis of dimethyl carbonate (DMC) by the oxidative carbonylation of methanol. Cu/Norit showed the best catalytic activity. The reaction was carried out in a continuous flow system at atmospheric pressure usually at 393 K. The main products were methyl formate, DMC and CO 2 . The methanol conversion on Cu/Norit achieved in steady state was about 22 % and the DMC yield 13.2 %. Based on the XPS data we can establish that copper reduced to its metallic form during reduction but oxidized in the reaction mixture, and is mostly in the Cu ? state, with some Cu 2? . It is possible that the DMC formation rate depends on the surface concentration of oxidized Cu and on the ratio of Cu ? and Cu 2? . Based upon the IR measurements adsorbed DMC was found on the surface of the Cu/Norit catalyst during the catalytic reaction.

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Section: The Possible Route Of Dmc Formationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Synthesis of Dimethyl Carbonate by the Oxicarbonylation of Methanol Over Cu Supported on Carbon Norit

et al. 2014

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“…Among linear carbonates the most important are dimethylcarbonate (DMC), diphenylcarbonate (DPC) and diethylcarbonate (DEC). DMC is used in the chemical industry as monomer for polymers, in transesterification reactions for the production of other carbonates such as diphenylcarbonate and others, as alkylating or carboxylating agent . It is also used in the agrochemical and pharmaceutical industry for the production of chemicals or in product formulation.…”

Section: Synthesis Of Linear Carbonatesmentioning

confidence: 99%

Use of carbon dioxide as feedstock for chemicals and fuels: homogeneous and heterogeneous catalysis

Dibenedetto

Angelini

Stufano

2013

J of Chemical Tech & Biotech

198

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CO2 is considered to play a key role in an eventual climate change, due to its accumulation in the atmosphere. The control of its emission represents a challenging task that requires new ideas and new technologies. The use of perennial energy sources and renewable fuels instead of fossil fuels and the conversion of CO2 into useful products are receiving increased attention. The utilization of CO2 as a raw material for the synthesis of chemicals and fuels is an area in which scientists and industrialists are much involved: the implementation of such technology on a large scale would allow a change from a linear use of fossil carbon to its cyclic use, mimicking Nature. In this paper the use of CO2 as building block is discussed. CO2 can replace toxic species such as phosgene in low energy processes, or can be used as source of carbon for the synthesis of energy products. The reactions with dihydrogen, alcohols, epoxides, amines, olefins, dienes, and other unsaturated hydrocarbons are discussed, under various reaction conditions, using metal systems or enzymes as catalysts. The formation of products such as formic acid and its esters, formamides, methanol, dimethyl carbonate, alkylene carbonates, carbamic acid esters, lactones, carboxylic acids, and polycarbonates, is described. The factors that have limited so far the conversion of large volumes of CO2 are analyzed and options for large‐scale CO2 catalytic conversion into chemicals and fuels are discussed. Both homogeneous and heterogeneous catalysts are considered and the pros and cons of their use highlighted. © 2013 Society of Chemical Industry

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“…A few attempts have been made by developing a series of Lewis acid catalysts. 19 Haba et al reported that the BPA conversion of 80.0% was achieved when DMAP/(Bu 2 SnCl) 2 O was used as the catalyst, but the reaction time was long (48 h). 18 He et al found that good catalytic activity with high BPA conversion of 51.9% was achieved at 180 °C using Ph 2 SnO as the catalyst, while the selectivity of carboxymethylation products was only 76.3%.…”

Section: ■ Introductionmentioning

confidence: 99%

“…A few attempts have been made by developing a series of Lewis acid catalysts . Haba et al reported that the BPA conversion of 80.0% was achieved when DMAP/(Bu 2 SnCl) 2 O was used as the catalyst, but the reaction time was long (48 h) .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient and Selective Synthesis of Methyl Carbonate-Ended Polycarbonate Precursors from Dimethyl Carbonate and Bisphenol A

Yang

et al. 2020

Ind. Eng. Chem. Res.

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In this work, metal acetylacetonates were used to catalyze the reaction of dimethyl carbonate (DMC) and bisphenol A (BPA) and high conversion of BPA and excellent selectivity of carboxymethylation products were achieved. Among these, zirconium(IV) acetylacetonate (Zr(acac)4) exhibited the best catalytic performance with BPA conversion of 85.2% and carboxymethylation products selectivity up to 99.0%, which has been the most efficient catalyst so far to the best of our knowledge. According to Fourier transform infrared (FT-IR) characterization and density functional theory (DFT) calculations, we found that the most active cis–cis interaction species 3 formed between a Zr cation and two oxygen atoms from the CH3–O moiety of DMC greatly promoted the selective occurrence of the carboxymethylation reaction. It was demonstrated that the catalytic performance of metal acetylacetonate was related to d-electrons and interaction mode of the metal, and the plausible reaction mechanism was proposed.

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Promotion of organotin modified SBA-15 in the selective carboxylation of BPA with DMC

Cited by 10 publications

References 26 publications

The Synthesis of Dimethyl Carbonate by the Oxicarbonylation of Methanol Over Cu Supported on Carbon Norit

The Synthesis of Dimethyl Carbonate by the Oxicarbonylation of Methanol Over Cu Supported on Carbon Norit

Use of carbon dioxide as feedstock for chemicals and fuels: homogeneous and heterogeneous catalysis

Highly Efficient and Selective Synthesis of Methyl Carbonate-Ended Polycarbonate Precursors from Dimethyl Carbonate and Bisphenol A

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