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51792-34-8

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51792-34-8 Usage

Uses

Different sources of media describe the Uses of 51792-34-8 differently. You can refer to the following data:
1. 3,4-Dimethoxythiophene is used as an electronic materials intermediate. It is used as a starting material in the synthesis of porphyrin dyad which is used to study photoinduced energy transfer.
2. Building block in the synthesis of an N2S2-N4 porphyrin dyad used to study photoinduced energy transfer.

Synthesis Reference(s)

Journal of the American Chemical Society, 73, p. 2956, 1951 DOI: 10.1021/ja01150a525

General Description

3,4-Dimethoxythiophene (DMOT) is a monomer and a precursor which can be synthesized by ring closure reaction of 2,3-dimethoxy-1,3-butadiene and sulfur dichloride in hexane medium. It is an oligothiphene that is majorly used in the development of electroactive materials for organic electronics based applications.

Check Digit Verification of cas no

The CAS Registry Mumber 51792-34-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,7,9 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 51792-34:
(7*5)+(6*1)+(5*7)+(4*9)+(3*2)+(2*3)+(1*4)=128
128 % 10 = 8
So 51792-34-8 is a valid CAS Registry Number.
InChI:InChI=1/C6H8O2S/c1-7-5-3-9-4-6(5)8-2/h3-4H,1-2H3

51792-34-8 Well-known Company Product Price

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  • Alfa Aesar

  • (H56674)  3,4-Dimethoxythiophene, 98%   

  • 51792-34-8

  • 1g

  • 551.0CNY

  • Detail
  • Alfa Aesar

  • (H56674)  3,4-Dimethoxythiophene, 98%   

  • 51792-34-8

  • 5g

  • 1682.0CNY

  • Detail
  • Aldrich

  • (668257)  3,4-Dimethoxythiophene  97%

  • 51792-34-8

  • 668257-5G

  • 2,448.81CNY

  • Detail

51792-34-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 3,4-Dimethoxythiophene

1.2 Other means of identification

Product number -
Other names 3,4-dimethoxytiophene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:51792-34-8 SDS

51792-34-8Relevant articles and documents

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Fager

, p. 2217 (1945)

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Poly(thieno[3,4- b ]-1,4-oxathiane): Medium effect on electropolymerization and electrochromic performance

Wang, Zhipeng,Xu, Jingkun,Lu, Baoyang,Zhang, Shimin,Qin, Leiqiang,Mo, Daize,Zhen, Shijie

, p. 15581 - 15589 (2014)

The asymmetrical sulfur analog of 3,4-ethylenedioxythiophene (EDOT), thieno[3,4-b]-1,4-oxathiane (EOTT), was synthesized, and its electropolymerization was comparatively investigated by employing different solvent-electrolyte systems (room temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BmimPF6), CH2Cl2-Bu4NPF6, and CH2Cl2-BmimPF6). Further, the effect of solvents and supporting electrolytes on the structure, morphology, electrochemical, electronic, and optical properties and electrochromic performance of the obtained poly(thieno[3,4-b]-1,4-oxathiane) (PEOTT) films were minutely studied. PEOTT film with a band gap (Eg) of about 1.6 eV could be facilely electrodeposited in all the solvent-electrolytes and displayed excellent electroactivity, outstanding redox stability in a wide potential window, and improved thermal stability. Cyclic voltammetry showed that EOTT could be electropolymerized at a lower oxidation potential in BmimPF6 (~1.0 V vs Ag/AgCl) due to several advantanges of RTIL BmimPF6 itself, such as high intrinsic conductivity and mild chemical conditions, etc., and the resulting PEOTT film exhibited compact morphology with better electroactivity and stability and higher electrical conductivity. On the other hand, PEOTT films from all the sovent-electrolytes also showed the electrochromic nature by color changing from gray blue to green, and further kinetic studies revealed that PEOTT had decent contrast ratios (36%), higher coloration efficiencies (212 cm2/C in BmimPF6), low switching voltages, moderate response time (1.2 s), excellent stability, and color persistence. From these results, PEOTT provides more plentiful electrochromic colors and holds promise for display applications.

Method for synthesizing 3,4-dimethoxythiophene

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Paragraph 0030; 0037; 0044; 0051; 0058; 0062; 0065, (2018/05/16)

The invention relates to a method for synthesizing 3,4-dimethoxythiophene. The method comprises steps as follows: S1, 2,5-dimethyl dicarboxylate-3,4-sodium thiophene diol and dimethyl sulfate are subjected to a heating reaction in an organic solvent, and 3,4-dimethoxythiophene-2,5-dimethyl dicarboxylate is obtained; S2, 3,4-dimethoxythiophene-2,5-dimethyl dicarboxylate is subjected to the heatingreaction with strong base in an alkylbenzene organic solvent with the boiling point not lower than 200 DEG C, then strong acid is added for acidification, and 3,4-dimethoxythiophene-2-formic acid is obtained; S3, 3,4-dimethoxythiophene-2-formic acid is subjected to a reduced-pressure heating reaction in a long-chain amine organic solvent with the boiling point not lower than 300 DEG C, and 3,4-dimethoxythiophene is obtained. The method is low in production cost, low in energy consumption and high in product yield, the organic solvents can be recycled, particularly, no catalyst is used in the step of decarboxylation, so that the cost is greatly reduced, and environmental pollution is reduced.

BLUE ELECTROCHROMIC COMPOUND, PREPARATION METHOD AND SUBASSEMBLY THEREOF

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Paragraph 0058; 0061, (2016/10/04)

One class of blue thiophene electrochromic compounds include 3,4-(2,2-bis(2-oxo-3-phenylpropyl))propylenedioxythiophene, 3,4-(2,2-bis(2-oxo-3-phenylbutyl))propylenedioxythiophene, and 3,4-(2,2-bis(2-oxo-3-phenylamyl))propylenedioxythiophene. The thiophene electrochromic compounds can change color between blue and transparency. The thiophene compounds can be electropolymerized on the surface of the ITO glass to form a film. The film has characteristics of low driving voltage (within ±1V), fast response time, and large transmittance difference between colored-state and bleached-state (up to 77.5%). The thiophene electrochromic compounds can be used in the electrochromic window, rearview mirror, electrochomeric display, and the like.

Process for production of thiophene derivative

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Paragraph 0184-0190, (2017/01/02)

[Purpose] thiophene for preparing derivatives method, among other things, purity thiophene derivatives obtained in high yield by provides a method. [Constitution] halogenated thiophene and an alkali metal alkoxide seed alcohol solvent during is a process, alcohol solvent is regulated so as to have reaction outflow by including for a manipulation type well. , dialkoxy thiophene which comprises the step of obtaining an, oxygen atoms and thiophene dialkoxy said including compound or the like, an evacuating product caused by reaction while type well. outflow reaction to reaction step of reacting a carboxylic acid component characterized by including, of thiophene derivatives is manufacturing method. (by machine translation)

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