6290-49-9Relevant articles and documents
KINETICS OF ESTERIFICATION OF METHOXYACETIC ACID BY METHANOL
Avrutskii, M. M.,Balyakina, M. V.,Beregovykh, V. V.,Gunar, V. I.
, p. 912 - 915 (1982)
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Cobalt-catalyzed Hydroesterification of Formaldehyde Dialkyl Acetals
Murata, Kazuhisa,Matsuda, Akio,Masuda, Takashi
, p. 2141 - 2142 (1985)
Co2(CO)8-organic amine system was found to be an effective catalyst for the production of alkoxyacetic ester from formaldehyde dialkyl acetals and CO; this is the first example of homogeneous hydroesterification of acetals.
Excellent prospects in methyl methoxyacetate synthesis with a highly active and reusable sulfonic acid resin catalyst
Chen, Fei,Shi, Lei,Bello, SuleimanSabo,Fan, Jiaqi,Wang, Yan,Zhang, Dongxi,Yao, Jie
, p. 1346 - 1353 (2020/02/04)
Methyl methoxyacetate (MMAc) is a significant chemical product and can be applied as a gasoline and diesel fuel additive. This study aimed to achieve the industrial production of MMAc via dimethoxymethane (DMM) carbonylation. The effects of industrial DMM sources, reaction temperature, water content, pretreatment temperature, reaction pressure and time, the ratio of CO to DMM and recycle times were systematically investigated without any solvent. The conversion of DMM was 99.98% with 50.66% selectivity of MMAc at 393 K, 6.0 MPa reaction pressure, with the ratio of CO to DMM of only 1.97/1. When water was extracted from the DMM reactant, the MMAc selectivity significantly rose to 68.83%. This resin catalyst was reused for more than nineteen times in a slurry phase reactor and continuously performed for 300 h without noticeable loss of activity in a fixed bed reactor, displaying excellent stability. The mixed products were successfully separated by distillation, and 99.18% purity of MMAc was obtained. Therefore, the reported DMM carbonylation to MMAc process has an excellent basis for industrial application.
A boron-doped carbon aerogel-supported Cu catalyst for the selective hydrogenation of dimethyl oxalate
Lu, Xiaodong,Lu, Xiaodong,Wang, Guofu,Yang, Yu,Kong, Xiangpeng,Chen, Jiangang
, p. 3232 - 3240 (2020/03/06)
Carbon aerogels (CA) were applied in the synthesis of Cu/CA catalysts by the impregnation method and the catalysts with boron-doped CA supports were systematically characterized and evaluated in the hydrogenation of dimethyl oxalate (DMO). The Cu/xB-CA catalyst with 25 wt% copper showed 100% DMO conversion and the highest ethylene glycol (EG) or methyl glycolate (MG) selectivity of 70% at 230 °C as well as a lifetime of over 150 h. The characterization results disclosed the reason the performance of the catalysts could be tuned facilely by changing the amount of boron doping, which effectively influenced the interrelation between copper and CA, acidity and alkalinity of catalysts and Cu dispersion. Both the original carbon aerogels and that promoted with little B could provide larger surface areas and high dispersion of the metal. The species, size of copper particles and the ratio of Cu+/(Cu+ + Cu0) could be regulated by boron doping, thus adjusting the type of hydrogenation products.
The MOF-driven synthesis of supported palladium clusters with catalytic activity for carbene-mediated chemistry
Fortea-Pérez, Francisco R.,Mon, Marta,Ferrando-Soria, Jesús,Boronat, Mercedes,Leyva-Pérez, Antonio,Corma, Avelino,Herrera, Juan Manuel,Osadchii, Dmitrii,Gascon, Jorge,Armentano, Donatella,Pardo, Emilio
, p. 760 - 766 (2017/07/04)
The development of catalysts able to assist industrially important chemical processes is a topic of high importance. In view of the catalytic capabilities of small metal clusters, research efforts are being focused on the synthesis of novel catalysts bearing such active sites. Here we report a heterogeneous catalyst consisting of Pd4 clusters with mixed-valence 0/+1 oxidation states, stabilized and homogeneously organized within the walls of a metal-organic framework (MOF). The resulting solid catalyst outperforms state-of-the-art metal catalysts in carbene-mediated reactions of diazoacetates, with high yields (>90%) and turnover numbers (up to 100,000). In addition, the MOF-supported Pd4 clusters retain their catalytic activity in repeated batch and flow reactions (>20 cycles). Our findings demonstrate how this synthetic approach may now instruct the future design of heterogeneous catalysts with advantageous reaction capabilities for other important processes.
