Microreactor technology for synthesis of ethyl methyl oxalate from diethyl oxalate with methanol and its kinectics

: Silica-POCl2 was used as the promoter for the three-component reaction of ethyl/methyl 3-phenyl glycidate, aniline derivatives, and dimethylcarbonate, leads to the synthesis of methyl/ethyl 2-oxo-4-phenyl-3-aryloxazolidine-5-carboxylate derivatives. The desired product was obtained in high yields.

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Isobaric Vapor–Liquid Equilibrium Measurements of Binary Systems of Dimethyl Carbonate with Dimethyl Sulfoxide, Anisole, and Diethyl Oxalate at 101.3 kPa

Journal of Chemical & Engineering Data ◽

10.1021/acs.jced.0c00998 ◽

2021 ◽

Vol 66 (3) ◽

pp. 1367-1375

Author(s):

Yongzheng Song ◽

Yan Wang ◽

Xubin Zhang ◽

Wangfeng Cai

Keyword(s):

Dimethyl Sulfoxide ◽

Binary Systems ◽

Dimethyl Carbonate ◽

Diethyl Oxalate ◽

Liquid Equilibrium ◽

Vapor Liquid Equilibrium ◽

Vapor Liquid

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Selective Synthesis of Ethyl Methyl Carbonate via Catalytic Reactive Distillation over Heterogeneous MgO/HZSM‐5

ChemistrySelect ◽

10.1002/slct.201901167 ◽

2019 ◽

Vol 4 (24) ◽

pp. 7366-7370

Author(s):

Jianhua Lv ◽

Huanhuan Cai ◽

Yong Guo ◽

Wenrui Liu ◽

Ning Tao ◽

...

Keyword(s):

Reactive Distillation ◽

Selective Synthesis ◽

Ethyl Methyl ◽

Ethyl Methyl Carbonate ◽

Methyl Carbonate

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Synthesis of a novel aluminium salt of nitrogen-containing alkylphosphinate with high char formation to flame retard acrylonitrile–butadiene–styrene

Royal Society Open Science ◽

10.1098/rsos.200800 ◽

2020 ◽

Vol 7 (9) ◽

pp. 200800

Author(s):

Xue Yang ◽

Hao Wang ◽

Xueqing Liu ◽

Jiyan Liu

Keyword(s):

Acrylonitrile Butadiene Styrene ◽

Infrared Spectrometry ◽

X Ray ◽

Ethyl Methyl ◽

Flame Retardant Properties ◽

The Fourier Transform ◽

Micro Combustion Calorimeter ◽

Combustion Calorimeter ◽

Composition Of Products ◽

Butadiene Styrene

A novel nitrogen-containing alkylphosphinate salt—aluminium β-(p-nitrobenzamide) ethyl methyl phosphinate (AlNP) was synthesized and used to flame retard acrylonitrile–butadiene–styrene copolymer (ABS). The Fourier transform infrared spectrometry, 1 H, 13 C and 31 P nuclear magnetic resonance and X-ray fluorescent spectroscopy (XRF) were applied to characterize the structure and composition of products. The flame retardancy performance, thermal properties and mechanical strength of the ABS/AlNP with respect to AlNP loading were investigated. AlNP was stable before 330°C and decomposed very slowly with residues high up to 56.1% at 700°C. Adding 25–30 wt% of AlNP alone can make ABS to pass V0 rating in the vertical burning tests (UL 94). The results according to the micro combustion calorimeter, thermogravimetric analysis showed that AlNP can depress the heating release and retard the thermal degradation of the ABS. Scanning electron microscopy observation of the residues from LOI test indicated that AlNP formed the condensed and tough residues layer during combustion; XRF analysis showed that the residues contained phosphorus and aluminium element and nitrogen element was not detected. The compact phosphorus/aluminium-rich substance acted as a barrier to enhance flame-retardant properties of the ABS.

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