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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem’s R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantiti

3,4-Ethylenedioxythiophene suppliers in China

Cas:126213-50-1

Min.Order:100 Gram

FOB Price: $12.0

Type:Lab/Research institutions

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Wuhan Kemi-Works Chemical Co., Ltd

Superiority : 1.Powerful R & D team 2.The ability of quantized production,from grams to tons; 3.Various kinds of advanced equipment in the laboratory and plant; 4.Strict QC standard to meet the demand of customers,advanced equip

High quality 99.7%min 3,4-Ethylenedioxythiophene (EDOT)

Cas:126213-50-1

Min.Order:100 Gram

Negotiable

Type:Other

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Chemwill Asia Co., Ltd.

3,4-Ethylenedioxythiophene EDOT CAS 126213-50-1 2,3-Dihydrothieno[3,4-b]-1,4-dioxin CAS no 126213-50-1 Thieno[3,4-b]-1,4-dioxin,2,3-dihydro- 3,4-Ethylenedioxythiophene Manufacturer High quality Best price In stock factory CAS 126213-50-1 3,4-Et

Tianjin Kind Pharma Co., Ltd.

Factory direct sales, accept customization. 3,4-Ethylenedioxythiophene is used as a monomer to synthesize the conductive polymers and used as a reductant in the one-pot synthesis of gold nanoparticles from chloroauric acid, as starting material used

3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hangzhou Dingyan Chem Co., Ltd

3,4-Ethylenedioxythiophene 126213-50-1 factory in China with excellent service Our Competitive Advantage: 1.Best quality in your requirement 2.Competitive price in China market 3.mature Technical support 4.Professional

3,4-Ethylenedioxythiophene 126213-50-1 factory in China with excellent service

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 3,4-Ethylenedioxythiophene supplier in China

Cas:126213-50-1

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/1358.html Product Name 3,4-Ethylenedioxythiophene CAS No. 126213-50-1

3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:1 Gram

FOB Price: $5.0

Type:Lab/Research institutions

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Wuhan Fortuna Chemical Co.,Ltd

High purity 3,4-Ethylenedioxythiophene (EDOT) CAS 126213-50-1 supplied by factory Specifications of 3,4-Ethylenedioxythiophene (EDOT) CAS 126213-50-1: Items Specifications Result

High purity 3,4-Ethylenedioxythiophene (EDOT) CAS 126213-50-1 supplied by factory

Cas:126213-50-1

Min.Order:1 Kilogram

FOB Price: $200.0

Type:Trading Company

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Hebei yanxi chemical co.,LTD.

Hebei yanxi chemical co., LTD is a professional research, development and production Cyromazine、lead diacetate trihydrate /Lead acetate trihydrateC、 2-phenylacetamide 、 4-Aminophenyl-1-phenethylpiperidine 、Citric acid monohydrate 、 Citric acid/c

126213-50-1 Thieno[3,4-b]-1,4-dioxin,2,3-dihydro-

Cas:126213-50-1

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Manufacturers

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Henan Allgreen Chemical Co.,Ltd

high purity Appearance:colorless to slight yellow liquid Storage:Sealed, dry, microtherm , avoid light and smell. Package:meet customer's demand Application:organic synthesis Transportation:by sea or by air Port:Shanghai, Qingdao

3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply 3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:1

Negotiable

Type:Other

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

High Quality 99% 126213-50-1 3,4-Ethylenedioxythiophene Manufacturer

Cas:126213-50-1

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM--126213-50-1--3,4-Ethylenedioxythiophene factory price Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable busin

TIANFUCHEM--126213-50-1--3,4-Ethylenedioxythiophene factory price

Cas:126213-50-1

Min.Order:1 Metric Ton

FOB Price: $2000.0

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufactu

3,4-ethylenedioxythiophene CAS:126213-50-1

Cas:126213-50-1

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Hot CAS 126213-50-1 with high-quality service

Cas:126213-50-1

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

3,4-Ethylenedioxythiophene 126213-50-1

Cas:126213-50-1

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product name 3,4-Ethylenedioxythiophene Synonyms 2,3-Dihydrothieno[3,4-b]-1,4-dioxin; EDOT CAS 126213-50-1 Molecular Formula C6H6O2S

3,4-Ethylenedioxythiophene CAS: 126213-50-1

Cas:126213-50-1

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Hangzhou Sartort Biopharma Co., Ltd

Appearance:Colourless to pale yellow liquid Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Any port in china

3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:25 Kilogram

Negotiable

Type:Lab/Research institutions

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Hubei Langyou International Trading Co., Ltd

1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Colorless or light yellow liquid Storage:Store in sealed con

EDOT Conducting Materials 3,4-Ethylenedioxothiophene CAS NO 126213-50-1 99%

Cas:126213-50-1

Min.Order:100 Gram

Negotiable

Type:Other

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

Thieno[3,4-b]-1,4-dioxin,2,3-dihydro- 126213-50-1

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Fonlynn Health Technology Co., Ltd.

Packing: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:liquid Storage:Refer to COA / MSDS Package:Fact

126213-50-1 cas 99% EDOT 3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

3,4-Ethylenedioxythiophene 99%

Cas:126213-50-1

Min.Order:1 Kilogram

FOB Price: $85.0 / 98.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

3,4-Ethylenedioxythiophene CAS:126213-50-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organ

3,4-Ethylenedioxythiophene CAS:126213-50-1

Cas:126213-50-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Thieno[3,4-b]-1,4-dioxin,2,3-dihydro-

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,MoneyGram Package 10g,20g,50g,100g,500g,1KGS,

3,4-Ethylenedioxythiophene suppliers in China CAS NO.126213-50-1

Cas:126213-50-1

Min.Order:10 Gram

Negotiable

Type:Trading Company

inquiry

Lonwin Chemical Group Limited

3,4-Ethylenedioxythiophene CAS:126213-50-1 Specification items specifications results appearance colorless or light yellow liquid colorless clear liquid a

Factory Supply 3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:1 Kilogram

Negotiable

Type:Other

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

Thieno[3,4-b]-1,4-dioxin,2,3-dihydro-

Cas:126213-50-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Triumph International Development Limilted

Appearance:colorless or light yellow liquid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:Common pro

3,4-ethylenedioxythiophene

Cas:126213-50-1

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

3,4-Ethylenedioxythiophene

Cas:126213-50-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

3,4-ethylenedioxythiophene-2,5-dicarboxyllic acid
18361-03-0

3,4-ethylenedioxythiophene-2,5-dicarboxyllic acid

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
copper In ethylene glycol at 20 - 140℃; for 8.5h;98%
copper (II) carbonate hydroxide In polyethylene glycol 300 for 20h; Heating / reflux;96%
copper (II) carbonate hydroxide In sulfolane at 140℃; for 8h;95%
2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester
154934-13-1

2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With copper(II) oxide; zinc(II) oxide In water; N,N-dimethyl-formamide at 115℃; for 3h; Catalytic behavior; Temperature;97.9%
With sodium chloride In dimethyl sulfoxide at 120℃; for 6h; Time;84%
Multi-step reaction with 2 steps
1: 95 percent / KOH / ethanol / 3 h / Heating
2: 68 percent / CuO; quinoline / 5 h / 200 °C
View Scheme
Multi-step reaction with 2 steps
1: 100 percent / potassium hydroxide / ethanol / 3 h / Heating
2: 54 percent / copper bronze, quinoline / 4 h / 180 - 200 °C
View Scheme
Multi-step reaction with 2 steps
1.1: sodium hydroxide; water / 0.08 h / 100 °C / Microwave irradiation
1.2: 20 °C / pH 2.0
2.1: copper chromite / N,N-dimethyl-formamide / 0.33 h / 153 °C / Microwave irradiation
View Scheme
2,3-dimethoxythiophene
51792-34-8

2,3-dimethoxythiophene

ethylene glycol
107-21-1

ethylene glycol

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With toluene-4-sulfonic acid In toluene at 95℃; for 96h; Inert atmosphere;84%
With toluene-4-sulfonic acid In toluene Heating;65%
With toluene-4-sulfonic acid In methanol; toluene at 100℃; for 3h; Reagent/catalyst; Inert atmosphere;46.7%
ethylene glycol
107-21-1

ethylene glycol

3,4-diethoxythiophene
122721-91-9

3,4-diethoxythiophene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With toluene-4-sulfonic acid; hydroquinone In o-xylene at 137 - 142℃; for 4h; Reagent/catalyst; Inert atmosphere;84%
3,4-ethylenedioxythiophene; 3,4-dimethoxythiophene

3,4-ethylenedioxythiophene; 3,4-dimethoxythiophene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Purification / work up;76%
2,5-bis(trimethylsilyl)-3,4-ethylenedioxythiophene
195602-16-5

2,5-bis(trimethylsilyl)-3,4-ethylenedioxythiophene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride70%
diethinyl glycol
101537-27-3

diethinyl glycol

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); tiolacetic acid In toluene at 80℃; for 5h; Inert atmosphere; Schlenk technique; Green chemistry;48%
3,4-dibromothiophene
3141-26-2

3,4-dibromothiophene

ethylene glycol
107-21-1

ethylene glycol

A

3-bromo-4-(1-hydroxyethyl)oxythiophene

3-bromo-4-(1-hydroxyethyl)oxythiophene

B

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With potassium phosphate; copper(l) iodide; 8-quinolinol In N,N-dimethyl-formamide at 120℃; for 24h; Reagent/catalyst; Solvent;A 43%
B 15%
2,3-dimethoxy-2,3-dimethyl-1,4-dioxane

2,3-dimethoxy-2,3-dimethyl-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With sulfur; copper(l) iodide In toluene at 180℃; for 6h; Reagent/catalyst; Temperature; Microwave irradiation; Sealed tube;37%
(3S*,4R*)-tetrahydro-3,4-ethylenedioxythiophene
1271145-38-0

(3S*,4R*)-tetrahydro-3,4-ethylenedioxythiophene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In chlorobenzene for 9h; Inert atmosphere; Reflux;23%
(3S*,4S*)-tetrahydro-3,4-ethylenedioxythiophene

(3S*,4S*)-tetrahydro-3,4-ethylenedioxythiophene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In chlorobenzene at 80℃; for 6h; Inert atmosphere;21%
(2R*,3R*)-2,3-bis(methanesulfonyloxymethyl)-1,4-dioxane

(2R*,3R*)-2,3-bis(methanesulfonyloxymethyl)-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodiumsulfide nonahydrate / N,N-dimethyl-formamide / 17 h / 50 °C / Inert atmosphere
2: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 6 h / 80 °C / Inert atmosphere
View Scheme
(2R*,3S*)-3-(2-bromoethoxy)-1,4-bis(benzyloxy)butan-2-ol

(2R*,3S*)-3-(2-bromoethoxy)-1,4-bis(benzyloxy)butan-2-ol

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: potassium hydroxide / ethanol / 12 h / Inert atmosphere; Reflux
2: hydrogenchloride; palladium 10% on activated carbon; water; hydrogen / methanol / 24 h / 20 °C / 760.05 Torr
3: triethylamine / dichloromethane / 0 - 20 °C / Inert atmosphere
4: sodiumsulfide nonahydrate / ethanol / 12 h / Inert atmosphere; Reflux
5: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 9 h / Inert atmosphere; Reflux
View Scheme
(2R*,3S*)-2,3-bis(benzyloxymethyl)-1,4-dioxane
1271145-22-2

(2R*,3S*)-2,3-bis(benzyloxymethyl)-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: hydrogenchloride; palladium 10% on activated carbon; water; hydrogen / methanol / 24 h / 20 °C / 760.05 Torr
2: triethylamine / dichloromethane / 0 - 20 °C / Inert atmosphere
3: sodiumsulfide nonahydrate / ethanol / 12 h / Inert atmosphere; Reflux
4: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 9 h / Inert atmosphere; Reflux
View Scheme
(2R*,3S*)-2,3-bis(hydroxymethyl)-1,4-dioxane
876607-67-9

(2R*,3S*)-2,3-bis(hydroxymethyl)-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: triethylamine / dichloromethane / 0 - 20 °C / Inert atmosphere
2: sodiumsulfide nonahydrate / ethanol / 12 h / Inert atmosphere; Reflux
3: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 9 h / Inert atmosphere; Reflux
View Scheme
(2R*,3S*)-2,3-bis(methanesulfonyloxymethyl)-1,4-dioxane
1271330-69-8

(2R*,3S*)-2,3-bis(methanesulfonyloxymethyl)-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodiumsulfide nonahydrate / ethanol / 12 h / Inert atmosphere; Reflux
2: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 9 h / Inert atmosphere; Reflux
View Scheme
(2R*,3R*)-3-(2-bromoethoxy)-1,4-bis(benzyloxy)butan-2-ol

(2R*,3R*)-3-(2-bromoethoxy)-1,4-bis(benzyloxy)butan-2-ol

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: potassium hydroxide / ethanol / 6 h / Inert atmosphere; Reflux
2: hydrogenchloride; palladium 10% on activated carbon; water; hydrogen / methanol / 4 h / 20 °C / 760.05 Torr
3: triethylamine / dichloromethane / 5.5 h / 0 °C / Inert atmosphere
4: sodiumsulfide nonahydrate / N,N-dimethyl-formamide / 17 h / 50 °C / Inert atmosphere
5: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 6 h / 80 °C / Inert atmosphere
View Scheme
(2R*,3R*)-2,3-bis(benzyloxymethyl)-1,4-dioxane

(2R*,3R*)-2,3-bis(benzyloxymethyl)-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: hydrogenchloride; palladium 10% on activated carbon; water; hydrogen / methanol / 4 h / 20 °C / 760.05 Torr
2: triethylamine / dichloromethane / 5.5 h / 0 °C / Inert atmosphere
3: sodiumsulfide nonahydrate / N,N-dimethyl-formamide / 17 h / 50 °C / Inert atmosphere
4: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 6 h / 80 °C / Inert atmosphere
View Scheme
(2R*,3R*)-2,3-bis(hydroxymethyl)-1,4-dioxane

(2R*,3R*)-2,3-bis(hydroxymethyl)-1,4-dioxane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: triethylamine / dichloromethane / 5.5 h / 0 °C / Inert atmosphere
2: sodiumsulfide nonahydrate / N,N-dimethyl-formamide / 17 h / 50 °C / Inert atmosphere
3: 2,3-dicyano-5,6-dichloro-p-benzoquinone / chlorobenzene / 6 h / 80 °C / Inert atmosphere
View Scheme
2,3-dimethoxythiophene
51792-34-8

2,3-dimethoxythiophene

ethylene glycol
107-21-1

ethylene glycol

A

C7H10O3S

C7H10O3S

B

C8H12O4S

C8H12O4S

C

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With [(1S)-7,7-dimethyl-2-oxobicyclo[2.2.1]hept-1-yl]methanesulfonic acid In methanol; toluene at 100℃; for 1h; Reagent/catalyst; Inert atmosphere;A 19.3 %Chromat.
B 12.84 %Chromat.
C 56.29 %Chromat.
With 2-aminonaphthalenesulfonic acid In methanol; toluene at 100℃; for 3h; Reagent/catalyst; Inert atmosphere;A 7.3 %Chromat.
B 11.78 %Chromat.
C 70.74 %Chromat.
2,3-dimethoxythiophene
51792-34-8

2,3-dimethoxythiophene

ethylene glycol
107-21-1

ethylene glycol

A

C7H10O3S

C7H10O3S

B

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With para-dodecylbenzenesulfonic acid In methanol; toluene at 100℃; for 1h; Reagent/catalyst; Inert atmosphere;A 13.67 %Chromat.
B 79.08 %Chromat.
2,3-dimethoxythiophene
51792-34-8

2,3-dimethoxythiophene

ethylene glycol
107-21-1

ethylene glycol

A

C8H12O4S

C8H12O4S

B

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With naphthalene-2-sulfonate In methanol; toluene at 100℃; for 3h; Inert atmosphere;A 14.42 %Chromat.
B 78.58 %Chromat.
thieno[3,4-b]-1,4-dioxine-5,7-dicarboxylic acid

thieno[3,4-b]-1,4-dioxine-5,7-dicarboxylic acid

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

Conditions
ConditionsYield
With copper oxide nanoparticles coated on Ni-Cr alloy In N,N-dimethyl-formamide at 110℃; for 2.25h; Temperature;
N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

3,4-ethylenedioxythiophene-2-carboxaldehyde
204905-77-1

3,4-ethylenedioxythiophene-2-carboxaldehyde

Conditions
ConditionsYield
With trichlorophosphate at -10 - 20℃; for 1.25h;100%
With n-butyllithium In tetrahydrofuran at -78 - 20℃; Formylation;95%
With trichlorophosphate at 20℃; Vilsmeier-Haack Formylation; Cooling with ice;95%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5,7-dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
174508-31-7

5,7-dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
With N-Bromosuccinimide; acetic acid In tetrahydrofuran at 20℃; for 2h;100%
With N-Bromosuccinimide In N,N-dimethyl-formamide at 0 - 20℃; for 2h;95%
With N-Bromosuccinimide In N,N-dimethyl-formamide at -15℃; for 1h;91%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

3,4-ethylenedioxythiophene-2-carboxaldehyde
204905-77-1

3,4-ethylenedioxythiophene-2-carboxaldehyde

Conditions
ConditionsYield
With N,N-dimethyl-formamide; trichlorophosphate at -10 - 20℃; Vilsmeier formylation;100%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2,2'-bis(3,4-ethylenedioxythiophene)
195602-17-6

2,2'-bis(3,4-ethylenedioxythiophene)

Conditions
ConditionsYield
Stage #1: 3,4-(ethylenedioxy)thiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In tetrahydrofuran at -10℃; for 0.5h; Metallation;
Stage #2: With iron(III)-acetylacetonate In tetrahydrofuran for 6h; Oxidation; Heating;
99%
With n-butyllithium; copper dichloride In tetrahydrofuran; hexane at -78 - 0℃; for 12h; Dimerization;84%
With n-butyllithium; copper dichloride In tetrahydrofuran at -80 - -40℃;76%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

methyl iodide
74-88-4

methyl iodide

5-methyl-2,3-dihydrothieno[3,4-b][1,4]dioxine

5-methyl-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
Stage #1: 3,4-(ethylenedioxy)thiophene In tetrahydrofuran; hexane at -78℃; for 1h;
Stage #2: methyl iodide In tetrahydrofuran; hexane at -78 - 20℃;
99%
Stage #1: 3,4-(ethylenedioxy)thiophene With 2,2,6,6-tetramethyl-piperidine; tert.-butyl lithium In tetrahydrofuran; pentane for 1.5h; Sealed tube; Inert atmosphere; Cooling with acetone-dry ice;
Stage #2: methyl iodide In tetrahydrofuran; pentane
97%
triethylsilane
617-86-7

triethylsilane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2,5-bis(triethylsilyl)-3,4-ethylenedioxythiophene

2,5-bis(triethylsilyl)-3,4-ethylenedioxythiophene

Conditions
ConditionsYield
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 3,4,7,8-Tetramethyl-o-phenanthrolin; norbornene In di-isopropyl ether at 80℃; for 22h; Inert atmosphere;99%
n-butyllithium
109-72-8, 29786-93-4

n-butyllithium

tributyltin chloride
1461-22-9

tributyltin chloride

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

tributyl(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-stannane
175922-79-9

tributyl(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-stannane

Conditions
ConditionsYield
In tetrahydrofuran; hexane98%
bromobenzene
108-86-1

bromobenzene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5,7-diphenyl-2,3-dihydrothieno[3,4-b][1,4]-dioxine

5,7-diphenyl-2,3-dihydrothieno[3,4-b][1,4]-dioxine

Conditions
ConditionsYield
With palladium diacetate; caesium carbonate; tri(m-tolyl)phosphine In toluene at 110℃; for 24h; Inert atmosphere;98%
With palladium diacetate; caesium carbonate; triphenylphosphine In toluene at 110℃; for 24h; Inert atmosphere;75%
dimethyl(2-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)phenyl)silane
853955-58-5

dimethyl(2-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)phenyl)silane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2,5-bis[2-{(2-tetrahydropyranyloxy)methyl}phenyldimethylsilyl]-3,4-ethylenedioxythiophene

2,5-bis[2-{(2-tetrahydropyranyloxy)methyl}phenyldimethylsilyl]-3,4-ethylenedioxythiophene

Conditions
ConditionsYield
With norborn-2-ene; (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 3,4,7,8-Tetramethyl-o-phenanthrolin In di-isopropyl ether at 80℃; for 5h; Inert atmosphere; Sealed tube;98%
3-Bromopyridine
626-55-1

3-Bromopyridine

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5,7-di(pyridin-3-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine

5,7-di(pyridin-3-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
With {N,N-(1,2-diphenylethane-1,2-diylidene)bis(2-benzhydryl-4,6-dimthylaniline)}dichloropalladium; potassium carbonate; Trimethylacetic acid In N,N-dimethyl acetamide at 130℃; for 12h; Catalytic behavior;98%
4-bromoisoquinoline
1532-97-4

4-bromoisoquinoline

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5,7-di(isoquinolin-4-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine

5,7-di(isoquinolin-4-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
With {N,N-(1,2-diphenylethane-1,2-diylidene)bis(2-benzhydryl-4,6-dimthylaniline)}dichloropalladium; potassium carbonate; Trimethylacetic acid In N,N-dimethyl acetamide at 130℃; for 12h; Catalytic behavior;97%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

C6H4(2)H2O2S

C6H4(2)H2O2S

Conditions
ConditionsYield
With potassium carbonate; silver carbonate; johnphos In dimethyl sulfoxide at 25℃; for 12h;97%
With deuteromethanol; silver carbonate; johnphos at 50 - 80℃;91%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
25015-63-8

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane
250726-93-3

2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane

Conditions
ConditionsYield
With 1-(difluoromethoxyborato)-2-TMP-benzene In chloroform at 80℃; for 16h; Inert atmosphere;96%
With 1-(2-borylphenyl)-2,2,6,6-tetramethylpiperidine dimer In chloroform at 80℃; for 16h;87%
With 1-(trifluoroborato)-2-TMP-benzene In neat (no solvent) at 80℃; for 6h; Reagent/catalyst; Inert atmosphere;85%
With 1-(trifluoroborato)-2-TMP-benzene In neat (no solvent) at 80℃; for 6h; Inert atmosphere; regioselective reaction;85%
With poly((2-(piperidin-1-ium-1-yl)-5-vinylphenyl)trifluoroborate) In neat (no solvent) at 90℃; for 16h; Reagent/catalyst; Inert atmosphere; Glovebox; Sealed tube;
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
61676-62-8

2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane
250726-93-3

2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane

Conditions
ConditionsYield
Stage #1: 3,4-(ethylenedioxy)thiophene With n-butyllithium
Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
95%
Stage #1: 3,4-(ethylenedioxy)thiophene With n-butyllithium In tetrahydrofuran at -78 - 0℃; for 0.333333h; Inert atmosphere;
Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran at -78 - 20℃; for 17h; Irradiation;
78%
With n-butyllithium In tetrahydrofuran at -78 - 20℃; for 6h; Substitution;71%
mercury(II) diacetate
1600-27-7

mercury(II) diacetate

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2,5-diacetoxymercuro-3,4-ethylenedioxythiophene
640737-73-1

2,5-diacetoxymercuro-3,4-ethylenedioxythiophene

Conditions
ConditionsYield
In acetic acid to soln. 3,4-ethylenedioxythiophene in acetic acid soln. Hg(OAc)2 in acetic acid was added dropwise and stirred overnight; ppt. was filtered, washed with MeOH and et2O and dried in vacuo; elem. anal.;95%
[hydroxy(tosyloxy)iodo]benzene
27126-76-7

[hydroxy(tosyloxy)iodo]benzene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)(phenyl)iodonium tosylate
1222887-22-0

(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)(phenyl)iodonium tosylate

Conditions
ConditionsYield
In 2,2,2-trifluoroethanol at 20℃; for 3h;94%
C10H18BrClSi

C10H18BrClSi

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

C16H23ClO2SSi

C16H23ClO2SSi

Conditions
ConditionsYield
Stage #1: 3,4-(ethylenedioxy)thiophene With n-butyllithium In 1,2-dimethoxyethane
Stage #2: With copper(l) cyanide
Stage #3: C10H18BrClSi at -78 - -30℃;
94%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5,7-diiodo-2,3-dihydrothieno[3,4-b][1,4]dioxine
640737-72-0

5,7-diiodo-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
With iodine monochloride-pyridine In dichloromethane at 20℃; for 1h;93%
With N-iodo-succinimide; acetic acid In tetrahydrofuran at 20℃;88%
With N-iodo-succinimide; toluene-4-sulfonic acid In ethanol at 25℃; for 0.166667h; Green chemistry; regioselective reaction;87%
para-bromotoluene
106-38-7

para-bromotoluene

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

A

5-(p-tolyl)-2,3-dihydrothieno[3,4-b][1,4]dioxine
925674-57-3

5-(p-tolyl)-2,3-dihydrothieno[3,4-b][1,4]dioxine

B

2,3-dihydro-5,7-bis(4-methylphenyl)thieno[3,4-b][1,4]dioxine
1579939-66-4

2,3-dihydro-5,7-bis(4-methylphenyl)thieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
With C40H36N2O2Pd(2+)*2C2H4O2; potassium carbonate; Trimethylacetic acid In N,N-dimethyl acetamide at 100℃; for 24h; Inert atmosphere; Schlenk technique; regioselective reaction;A 7%
B 93%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5-bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine

5-bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
With N-Bromosuccinimide; acetic acid In tetrahydrofuran at 0 - 20℃; for 2h; Schlenk technique;92%
With N-Bromosuccinimide In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere; Darkness;52%
With N-Bromosuccinimide In N,N-dimethyl-formamide at 20℃; for 1h; Bromination;
Ethyl 4-bromobenzoate
5798-75-4

Ethyl 4-bromobenzoate

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2,5-di(4-ethoxycarbonylphenyl)-3,4-ethylenedioxythiophene

2,5-di(4-ethoxycarbonylphenyl)-3,4-ethylenedioxythiophene

Conditions
ConditionsYield
With potassium acetate; tetra(n-tert-butyl)ammonium bromide; palladium diacetate In N,N-dimethyl-formamide at 80℃; for 1h;92%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5,7-ditributyltin-2,3-dihydrothieno[3,4-b][1,4]dioxin

5,7-ditributyltin-2,3-dihydrothieno[3,4-b][1,4]dioxin

Conditions
ConditionsYield
With lithium diisopropyl amide In tetrahydrofuran at 0 - 20℃;92%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
25015-63-8

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

2,5-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-ethylenedioxythiophene

2,5-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-ethylenedioxythiophene

Conditions
ConditionsYield
With 1-(2-borylphenyl)-2,2,6,6-tetramethylpiperidine dimer In chloroform at 80℃; for 16h;92%
With 1-(2-borylphenyl)-2,2,6,6-tetramethylpiperidine dimer In chloroform at 80℃; for 16h; Sealed tube; Microwave irradiation; Glovebox; Inert atmosphere;92%
With 1-(trifluoroborato)-2-TMP-benzene In neat (no solvent) at 80℃; for 24h; Inert atmosphere; regioselective reaction;91%
Di-t-butyl ketone
815-24-7

Di-t-butyl ketone

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

3,4-ethylenedioxy-2-[3-(2,2,4,4-tetramethylpentan-3-ol)]thiophene

3,4-ethylenedioxy-2-[3-(2,2,4,4-tetramethylpentan-3-ol)]thiophene

Conditions
ConditionsYield
Stage #1: 3,4-(ethylenedioxy)thiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In diethyl ether; hexane at 20℃; for 0.5h;
Stage #2: Di-t-butyl ketone In diethyl ether at 20℃; for 0.5h; Further stages.;
91%
morpholine
110-91-8

morpholine

formaldehyd
50-00-0

formaldehyd

3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

2,5-bis(morpholin-4-ylmethyl)-2,3-dihydrothieno[3,4-b][1,4]dioxin

2,5-bis(morpholin-4-ylmethyl)-2,3-dihydrothieno[3,4-b][1,4]dioxin

Conditions
ConditionsYield
With acetic acid In water at 100℃; for 4h; Mannich reaction;91%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

[(difluoroiodomethyl)sulfonyl]benzene
802919-90-0

[(difluoroiodomethyl)sulfonyl]benzene

C13H10F2O4S2
1609470-37-2

C13H10F2O4S2

Conditions
ConditionsYield
With dipotassium hydrogenphosphate; tris(bipyridine)ruthenium(II) dichloride hexahydrate In dichloromethane at 40℃; for 48h; Sealed tube; Inert atmosphere; Irradiation;91%
3,4-(ethylenedioxy)thiophene
126213-50-1

3,4-(ethylenedioxy)thiophene

5-iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine
219621-78-0

5-iodo-2,3-dihydrothieno[3,4-b][1,4]dioxine

Conditions
ConditionsYield
Stage #1: 3,4-(ethylenedioxy)thiophene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h;
Stage #2: With iodine In tetrahydrofuran; hexane at 20℃; for 1h; Further stages.;
90%
With potassium dichloroiodate monohydrate In water at 25℃; for 1h;63%
With n-butyllithium; iodine In tetrahydrofuran
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