763-69-9Relevant articles and documents
One-pot production of diethyl maleate via catalytic conversion of raw lignocellulosic biomass
Cai, Zhenping,Chen, Rujia,Jiang, Lilong,Li, Fukun,Li, Xuehui,Long, Jinxing,Zhang, Hao
supporting information, p. 10116 - 10122 (2021/12/24)
The conversion of lignocellulose into a value-added chemical with high selectivity is of great significance but is a big challenge due to the structural diversities of biomass components. Here, we have reported an efficient approach for the one-step conversion of raw lignocellulose into diethyl maleate by the polyoxometalate ionic liquid [BSmim]CuPW12O40 in ethanol under mild conditions. The results reveal that all of the fractions in biomass, i.e., cellulose, lignin and hemicellulose, were simultaneously converted into diethyl maleate (DEM), achieving a 329.6 mg g-1 yield and 70.3% selectivity from corn stalk. Importantly, the performance of the ionic liquid catalyst [BSmim]CuPW12O40 was nearly twice that of CuHPW12O40, which can be attributed to the lower incorporation of the Cu2+ site in [BSmim]CuPW12O40. Hence, this process opens a promising route for producing bio-based bulk chemicals from raw lignocellulose without any pretreatment.
Method for producing Alkyl 3-Alkoxypropionate Using Continuous Type Process
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Paragraph 0077-0087, (2021/01/09)
The invention relates to a process for preparing alkyl 3 - alkoxypropionates. More particularly, it relates to a continuous process for preparing ethyl 3 - ethoxypropionate. A method for preparing an alkyl 3 - alkoxypropionate for a semiconductor is provided to produce alkyl 3 - alkoxypropionate for a semiconductor on a large scale using a continuous reaction, and to prepare an alkyl 3 - 3 - alkoxypropionate for a semiconductor in a large scale production process using a continuous method.
Method for producing Ethyl 3-Ethoxypropionate
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Paragraph 0021, (2019/09/11)
The present invention relates to a method for manufacturing ethyl 3-ethoxypropionate (EEP), comprising a step of synthesizing EEP with an ethyl acrylate monomer and ethanol in the presence of a catalyst, and then efficiently regenerating unreacted ethanol and the ethyl acrylate monomer from a reaction product obtained by removing a salt. It is possible to increase economic feasibility of EEP by efficiently regenerating and reusing, especially, ethanol among reaction products.COPYRIGHT KIPO 2019