146796-02-3Relevant articles and documents
Prussian blue nanoparticles protected by the water-soluble π-conjugated polymer PEDOT-S: Synthesis and multiple-color pH-sensing with a redox reaction
Yamada, Mami,Ohnishi, Naoto,Watanabe, Makoto,Hino, Yasuko
, p. 7203 - 7205 (2009)
Prussian blue nanoparticles (PB NPs), stabilized for the first time by the π-conjugated polymer poly(4-(2,3-dihydrothieno[3,4-b][1,4]dioxin-2yl-methoxy- 1-butanesulfonic acid, potassium salt) (PEDOT-S), demonstrated a novel multiple-color pH-sensing function with a redox reaction based on the electronic interaction between the PB nano-core and the PEDOT-S shell. The Royal Society of Chemistry 2009.
Electrochemical sensor based on f-SWCNT and carboxylic group functionalized PEDOT for the sensitive determination of bisphenol A
Zhang, Long,Wen, Yang-Ping,Yao, Yuan-Yuan,Wang, Zi-Fei,Duan, Xue-Min,Xu, Jing-Kun
, p. 517 - 522 (2014)
A simple, sensitive, and reliable method for the voltammetric determination of bisphenol A (BPA) by using carboxylic group functionalized single-walled carbon nanotubes (f-SWCNT)/carboxylic-functionalized poly(3,4- ethylenedioxythiophene) (PC4) complex modified glassy carbon electrode (GCE) has been successfully developed. The electrochemical behavior of BPA at the surface of the modified electrode is investigated by electrochemical techniques. The cyclic voltammetry results show that the as-prepared electrode exhibits strong catalytic activity toward the oxidation of BPA with a well-defined anodic peak at 0.623 V in PBS (0.1 mol/L, pH 7.0). The surface morphology of the 3D network of composite film is beneficial for the adsorption of analytes. Under the optimized conditions, the oxidation peak current is proportional to BPA concentration in the range between 0.099 and 5.794 μmol/L (R2 = 0.9989), with a limit of detection of 0.032 μmol/L (S/N = 3). The enhanced performance of the sensor can be attributed to the excellent electrocatalytic property of f-SWCNT and the extraordinary conductivity of PC4. Furthermore, the proposed modified electrode displays high stability and good reproducibility. The good result on the voltammetric determination of BPA also indicates that the as-fabricated modified electrode will be a good candidate for the electrochemical determination and analysis of BPA.
Method for preparing thieno[3,4-B]-1,4-dioxin-2-methanol
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Paragraph 0025; 0026; 0028; 0029; 0031; 0032; 0034; 0035, (2019/05/08)
The invention relates to a method for preparing thieno[3,4-B]-1,4-dioxin-2-methanol. The method comprises the following steps: adding dimethyl 3,4-dihydroxythiophene-2,5-dicarboxylate, 2,3-dibromo-1-propanol and an organic amine catalyst into an organic solvent for heating reaction, and carrying out post treatment to obtain dimethyl 2-hydroxymethyl-2,3-dihydrothieno[3,4-b]-[1,4]-dioxin-5,7-dicarboxylate; adding the dimethyl 2-hydroxymethyl-2,3-dihydrothieno[3,4-b]-[1,4]-dioxin-5,7-dicarboxylate into an organic solvent for dispersion, then adding Lewis acid, water and vanadium oxide or a supported catalyst thereof, carrying heating and stirring for reaction, and carrying out post treatment to obtain thieno[3,4-B]-1,4-dioxin-2-methanol. The method for preparing thieno[3,4-B]-1,4-dioxin-2-methanol, provided by the invention, has the advantages of short reaction route, high product yield and low cost.
Method for synthesizing hydroxymethyl EDOT (Ethylenedioxythiophene)
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Paragraph 0072; 0029; 0033; 0036; 0040; 0043; 0047, (2018/08/28)
The invention relates to a method for synthesizing hydroxymethyl EDOT (Ethylenedioxythiophene). The method comprises the following steps: 3,4-dihydroxythiophene-2,5-dimethyl isophthalate, glycerol andcatalyst are heated to react in organic solvent to obtain 2-hydroxymethyl-2,3-dihydrothiophene[3,4-b]-[1,4]-dioxin-5,7-methyl diformate; the 2-hydroxymethyl-2,3-dihydrothiophene[3,4-b]-[1,4]-dioxin-5,7-2-methyl diformate is added into strong base aqueous solution to be subjected to heating reaction; then, strong acid aqueous solution is used for acidification to obtain 2-hydroxymethyl-2,3-dihydrothiophene[3,4-b]-[1,4]-dioxin-5,7-dicarboxylic acid; the 2-hydroxymethyl-2,3-dihydrothiophene[3,4-b]-[1,4]-dioxin-5,7-methyl diformate and catalyst are heated to react in organic solvent to obtain thehydroxymethyl EDOT. The method disclosed by the invention has the advantages of short reaction line, high product yield and low cost.