Products

Refine

Country

Business Type

Certificate

Display

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 quantities

2,4-dimethylthiophene

Cas:638-00-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

Superiority kono is a leading manufacturer and supplier of chemicals in China. We develop ,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quali

98% 2,4-Dimethylthiophene CAS 638-00-6

Cas:638-00-6

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Other

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

2,4-Dimethylthiophene

Cas:638-00-6

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

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

Pharmaceutical Grade CAS 638-00-6 with competitive price

Cas:638-00-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

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

Thiophene,2,4-dimethyl- 638-00-6

Cas:638-00-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

2,4-DIMETHYLTHIOPHENE CAS:638-00-6 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 organic inter

2,4-DIMETHYLTHIOPHENE CAS:638-00-6

Cas:638-00-6

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

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

2,4-dimethylthiophene CAS NO.638-00-6

Cas:638-00-6

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

2,4-DIMETHYLTHIOPHENE

Cas:638-00-6

Min.Order:1 Kilogram

FOB Price: $10.0 / 100.0

Type:Lab/Research institutions

inquiry

Triumph International Development Limilted

Appearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:As customer request Port:Qingda

2,4-DIMETHYLTHIOPHENE 638-00-6

Cas:638-00-6

Min.Order:1 Kilogram

FOB Price: $20.0

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

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

2,4-Dimethylthiophene

Cas:638-00-6

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

2,4-dimethylthiophene CAS NO.638-00-6

Cas:638-00-6

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

2,4-dimethylthiophene CAS NO.638-00-6

Cas:638-00-6

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

2,4-DIMETHYLTHIOPHENE

Cas:638-00-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

2,4-dimethylthiophene CAS NO.638-00-6

Cas:638-00-6

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

SAGECHEM LIMITED

SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in

SAGECHEM/ 2,4-dimethylthiophene /Manufacturer in China

Cas:638-00-6

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

2,4-dimethylthiophene CAS NO.638-00-6

Cas:638-00-6

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

We produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

2,4-Dimethylthiophene

Cas:638-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Henan Allgreen Chemical Co.,Ltd

high qualityAppearance:white crystalline powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

Wuxi TAA Chemical Industry Co.,LTD.

1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

2,4-DIMETHYLTHIOPHENE

Cas:638-00-6

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Langyou International Trading Co., Ltd

2,4-dimethylthiophene CAS NO.638-00-6 Application:2,4-dimethylthiophene CAS NO.638-00-6

2,4-dimethylthiophene CAS NO.638-00-6

Cas:638-00-6

Min.Order:0

Negotiable

Type:Other

inquiry

DB BIOTECH CO., LTD

best seller Application:API

2,4-DIMETHYLTHIOPHENE

Cas:638-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

BOC Sciences

We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as primary a

2,4-Dimethylthiophene

Cas:638-00-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

Thiophene,2,4-dimethyl-Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

Thiophene,2,4-dimethyl-

Cas:638-00-6

Min.Order:0

Negotiable

Type:Other

inquiry

Synthetic route

4-bromo-2-methylthiophene
29421-92-9

4-bromo-2-methylthiophene

methylmagnesium chloride
676-58-4

methylmagnesium chloride

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With 1,3-bis[(diphenylphosphino)propane]dichloronickel(II) In diethyl ether for 22h;79%
1,3-bis[(diphenylphosphino)propane]dichloronickel(II) In tetrahydrofuran; diethyl ether Kumada coupling; Heating;
thiophene-2,4-dicarbaldehyde
932-93-4

thiophene-2,4-dicarbaldehyde

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With potassium hydroxide; hydrazine hydrate In diethylene glycol76%
3-Methylthiophene
616-44-4

3-Methylthiophene

methyl iodide
74-88-4

methyl iodide

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
Stage #1: 3-Methylthiophene With 2,2,6,6-tetramethylpiperidinyl-lithium In tetrahydrofuran; pentane at -78℃; for 1h;
Stage #2: methyl iodide In tetrahydrofuran at -78 - 20℃; for 4h; Further stages.;
73%
Stage #1: 3-Methylthiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In diethyl ether; hexane at 0 - 20℃; for 3h;
Stage #2: methyl iodide at 0 - 20℃; for 5h;
68%
Stage #1: 3-Methylthiophene With 2,2,6,6-tetramethyl-piperidine; tert.-butyl lithium In tetrahydrofuran; pentane at -78℃; for 1h;
Stage #2: methyl iodide In tetrahydrofuran; pentane at -78 - 20℃; for 2h;
methyl magnesium iodide
917-64-6

methyl magnesium iodide

4-bromo-2-methylthiophene
29421-92-9

4-bromo-2-methylthiophene

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
nickel 1,3-bis(diphenylphosphino)propane In diethyl ether for 22h; Heating;66%
4-methylthiophene-2-carbaldehyde
6030-36-0

4-methylthiophene-2-carbaldehyde

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
Bildung ueber das Hydrazon;
2,5-Dimethyl-[1,4]dithiin
78334-38-0

2,5-Dimethyl-[1,4]dithiin

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

4-methyl-pent-3-en-2-one
141-79-7

4-methyl-pent-3-en-2-one

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With sulfur at 200℃;
2-methyl-4-oxopentanoic acid
6641-83-4

2-methyl-4-oxopentanoic acid

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With diphosphorus trisulfide
With phosphorous (V) sulfide
1,3-Dimethyl-1,3-butadien
1118-58-7

1,3-Dimethyl-1,3-butadien

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With sulfur at 260℃;
methyloxirane
75-56-9, 16033-71-9

methyloxirane

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With aluminum oxide; hydrogen sulfide at 400℃;
2-Methylthiophene
554-14-3

2-Methylthiophene

Methyl fluoride
593-53-3

Methyl fluoride

A

2,3-dimethylthiophene
632-16-6

2,3-dimethylthiophene

B

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

C

2,5-DIMETHYLTHIOPHENE
638-02-8

2,5-DIMETHYLTHIOPHENE

Conditions
ConditionsYield
With oxygen; trimethylamine In gas at 37.5℃; Product distribution; Kinetics; Mechanism; radiolysis: 1.5*104 Gy at 5*105 Gy h-1; variable pressures;
2-Methylthiophene
554-14-3

2-Methylthiophene

A

2-ethylthiophene
872-55-9

2-ethylthiophene

B

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

C

2,5-DIMETHYLTHIOPHENE
638-02-8

2,5-DIMETHYLTHIOPHENE

D

3-Methylthiophene
616-44-4

3-Methylthiophene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 11.7 % Chromat.
B 0.6 % Chromat.
C 4.9 % Chromat.
D 9.2 % Chromat.
2,3-dimethylthiophene
632-16-6

2,3-dimethylthiophene

A

3,4-dimethylthiophene
632-15-5

3,4-dimethylthiophene

B

2-ethylthiophene
872-55-9

2-ethylthiophene

C

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

D

3-Methylthiophene
616-44-4

3-Methylthiophene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 2.3 % Chromat.
B 1.5 % Chromat.
C 1.5 % Chromat.
D 12.8 % Chromat.
3,4-dimethylthiophene
632-15-5

3,4-dimethylthiophene

A

thiophene
188290-36-0

thiophene

B

2-Methylthiophene
554-14-3

2-Methylthiophene

C

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

D

toluene
108-88-3

toluene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 1.9 % Chromat.
B 1.4 % Chromat.
C 6.2 % Chromat.
D 2.4 % Chromat.
3,4-dimethylthiophene
632-15-5

3,4-dimethylthiophene

A

2,3-dimethylthiophene
632-16-6

2,3-dimethylthiophene

B

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

C

2,5-DIMETHYLTHIOPHENE
638-02-8

2,5-DIMETHYLTHIOPHENE

D

3-Methylthiophene
616-44-4

3-Methylthiophene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 5.1 % Chromat.
B 6.2 % Chromat.
C 1.1 % Chromat.
D 12.2 % Chromat.
3,4-dimethylthiophene
632-15-5

3,4-dimethylthiophene

A

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

B

2,5-DIMETHYLTHIOPHENE
638-02-8

2,5-DIMETHYLTHIOPHENE

C

3-Methylthiophene
616-44-4

3-Methylthiophene

D

benzene
71-43-2

benzene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 6.2 % Chromat.
B 1.1 % Chromat.
C 12.2 % Chromat.
D 17.6 % Chromat.
2,5-DIMETHYLTHIOPHENE
638-02-8

2,5-DIMETHYLTHIOPHENE

A

2-Methylthiophene
554-14-3

2-Methylthiophene

B

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

C

toluene
108-88-3

toluene

D

benzene
71-43-2

benzene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 15.4 % Chromat.
B 3.3 % Chromat.
C 2.6 % Chromat.
D 36.9 % Chromat.
3-Methylthiophene
616-44-4

3-Methylthiophene

A

thiophene
188290-36-0

thiophene

B

2,3-dimethylthiophene
632-16-6

2,3-dimethylthiophene

C

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

D

benzene
71-43-2

benzene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 13.6 % Chromat.
B 13.6 % Chromat.
C 1.7 % Chromat.
D 7.7 % Chromat.
3-Methylthiophene
616-44-4

3-Methylthiophene

A

2-Methylthiophene
554-14-3

2-Methylthiophene

B

2,3-dimethylthiophene
632-16-6

2,3-dimethylthiophene

C

3,4-dimethylthiophene
632-15-5

3,4-dimethylthiophene

D

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
1.) glow discharge, 2.) -196 deg C -> -80 deg C; Further byproducts given. Title compound not separated from byproducts;A 14.4 % Chromat.
B 13.6 % Chromat.
C 1.7 % Chromat.
D 1.7 % Chromat.
α-methyl-levulinic acid

α-methyl-levulinic acid

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With diphosphorus trisulfide
hydrogen sulfide
7783-06-4

hydrogen sulfide

methyloxirane
75-56-9, 16033-71-9

methyloxirane

aluminium oxide

aluminium oxide

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
at 400℃;
1,3-Dimethyl-1,3-butadien
1118-58-7

1,3-Dimethyl-1,3-butadien

sulfur

sulfur

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
at 260℃;
3-Methylthiophene
616-44-4

3-Methylthiophene

methyl iodide
74-88-4

methyl iodide

A

2,3-dimethylthiophene
632-16-6

2,3-dimethylthiophene

B

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
Stage #1: 3-Methylthiophene With methyllithium In tetrahydrofuran at 20℃; for 1h;
Stage #2: methyl iodide In tetrahydrofuran at 20℃; Further stages.;
Stage #1: 3-Methylthiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In diethyl ether; hexane
Stage #2: methyl iodide In diethyl ether; hexane Further stages. Title compound not separated from byproducts.;
2-bromo-4-methylthiophene
53119-60-1

2-bromo-4-methylthiophene

methylmagnesium chloride
676-58-4

methylmagnesium chloride

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
1,3-bis[(diphenylphosphino)propane]dichloronickel(II) In tetrahydrofuran; diethyl ether Kumada coupling; Heating;
2-bromo-5-methyl thiophene
765-58-2

2-bromo-5-methyl thiophene

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: LDA / tetrahydrofuran; hexane / 2 h / -78 °C
1.2: 80 percent / methanol / tetrahydrofuran; hexane
2.1: 79 percent / Ni(dppp)Cl2 / diethyl ether / 22 h
View Scheme
3-Methylthiophene
616-44-4

3-Methylthiophene

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: butyl lithium; diethyl ether / Behandeln mit Dimethylformamid und Hydrolysieren
2: Bildung ueber das Hydrazon
View Scheme
2,4-dimethyl-2,5-dihydrothiophene
78519-11-6

2,4-dimethyl-2,5-dihydrothiophene

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With bunazosin In benzene
4-bromo-2-methylthiophene
29421-92-9

4-bromo-2-methylthiophene

methylmagnesium bromide
75-16-1

methylmagnesium bromide

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

Conditions
ConditionsYield
With [1,1'-bis(diphenylphosphino)ferrocene]nickel(II) chloride In diethyl ether for 24h; Inert atmosphere; Reflux;
thiophene
188290-36-0

thiophene

Dimethyldisulphide
624-92-0

Dimethyldisulphide

A

2-Methylthiophene
554-14-3

2-Methylthiophene

B

3,4-dimethylthiophene
632-15-5

3,4-dimethylthiophene

C

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

D

2,3,4-trimethylthiophene
1795-04-6

2,3,4-trimethylthiophene

E

2,5-DIMETHYLTHIOPHENE
638-02-8

2,5-DIMETHYLTHIOPHENE

F

tetramethylthiophene
14503-51-6

tetramethylthiophene

G

3-Methylthiophene
616-44-4

3-Methylthiophene

H

methylthiol
74-93-1

methylthiol

I

dimethylsulfide
75-18-3

dimethylsulfide

J

hydrogen sulfide
7783-06-4

hydrogen sulfide

Conditions
ConditionsYield
With Co/HZSM-5 at 300℃; under 760.051 Torr; Inert atmosphere; Flow reactor;
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

2,4-dibromo-3,5-dimethylthiophene
63862-00-0

2,4-dibromo-3,5-dimethylthiophene

Conditions
ConditionsYield
With bromine for 0.05h; Ambient temperature;96%
With bromine In acetic acid65%
With carbon disulfide; bromine Erwaermen des Reaktionsprodukts mit methanol. Kalilauge;
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

4-methylthiophene-2-carbaldehyde
6030-36-0

4-methylthiophene-2-carbaldehyde

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; for 2.5h; Inert atmosphere;95%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

N,N-bis(4-methylphenyl)-N-(4-iodophenyl) amine
58047-43-1

N,N-bis(4-methylphenyl)-N-(4-iodophenyl) amine

2,4-dimethyl-5-(4-(N,N'-bis(4-methylphenyl)amino)phenyl)thiophene

2,4-dimethyl-5-(4-(N,N'-bis(4-methylphenyl)amino)phenyl)thiophene

Conditions
ConditionsYield
Stage #1: 2,4-dimethylthiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In diethyl ether; hexane at 20℃; for 2h;
Stage #2: With zinc(II) chloride In diethyl ether at 20℃; for 5h;
Stage #3: N,N-bis(4-methylphenyl)-N-(4-iodophenyl) amine; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 20 - 50℃; for 7h;
92%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

iodobenzene
591-50-4

iodobenzene

2,4-dimethyl-5-phenylthiophene
57021-49-5

2,4-dimethyl-5-phenylthiophene

Conditions
ConditionsYield
Stage #1: 2,4-dimethylthiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine; zinc(II) chloride In diethyl ether; hexane at -30 - 20℃; for 6h; Metallation;
Stage #2: iodobenzene; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran; diethyl ether; hexane at 50℃; for 12h; Phenylation;
90%
Yield given. Multistep reaction;
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

2,4-dimethyl-5-chloro-thiophene

2,4-dimethyl-5-chloro-thiophene

Conditions
ConditionsYield
With sulfuryl dichloride In dichloromethane for 2h; Reflux;85%
28%
With sulfuryl dichloride In dichloromethane
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

(E)-4-bromostilbene
13041-70-8

(E)-4-bromostilbene

3,5-dimethyl-2-(4-styrylphenyl)thiophene

3,5-dimethyl-2-(4-styrylphenyl)thiophene

Conditions
ConditionsYield
Stage #1: 2,4-dimethylthiophene With n-butyllithium; N,N,N,N,-tetramethylethylenediamine; zinc(II) chloride In diethyl ether; hexane at -30 - 20℃; for 6h; Metallation;
Stage #2: (E)-4-bromostilbene; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran; diethyl ether; hexane at 50℃; for 12h; Arylation;
80%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

3,5-dimethyl-2-thiophenecarboxaldehyde
85895-83-6

3,5-dimethyl-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With trichlorophosphate 1.) r.t., 1 h, 2.) heating, 30 min;77%
With trichlorophosphate at 70 - 75℃; for 3h;66%
With diethyl ether anschliessendes Hydrolysieren;
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

trifluoroacetic anhydride
407-25-0

trifluoroacetic anhydride

1-(3,5-dimethylthiophen-2-yl)-2,2,2-trifluoroethanone
65613-26-5

1-(3,5-dimethylthiophen-2-yl)-2,2,2-trifluoroethanone

Conditions
ConditionsYield
With magnesium perchlorate dihydrate In 1,2-dichloro-ethane at 60℃; for 12h; Friedel-Crafts Acylation; regioselective reaction;76%
3,5-dimethylthiophene-2-carbonyl chloride
679806-34-9

3,5-dimethylthiophene-2-carbonyl chloride

2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

bis(3,5-dimethyl-2-thienyl) ketone
910479-27-5

bis(3,5-dimethyl-2-thienyl) ketone

Conditions
ConditionsYield
With aluminium trichloride In dichloromethane for 4h;72%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

tert-Butyl acrylate
1663-39-4

tert-Butyl acrylate

tert-butyl (E)-3-(3,5-dimethylthiophen-2-yl)acrylate

tert-butyl (E)-3-(3,5-dimethylthiophen-2-yl)acrylate

Conditions
ConditionsYield
With 4-(ethylthio)-N,N-dimethylaniline; palladium diacetate; acetic acid; hydroquinone at 60℃; for 3h;65%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

3,3',5,5'-tetramethyl-2,2'-bithiophene

3,3',5,5'-tetramethyl-2,2'-bithiophene

Conditions
ConditionsYield
With boron trifluoride diethyl etherate; bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at -78℃; for 3h; Inert atmosphere;44%
With boron trifluoride diethyl etherate; bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at -78℃;44 % Chromat.
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

oxalyl dichloride
79-37-8

oxalyl dichloride

1,2-bis(3,5-dimethyl-2-thienyl)ethane-1,2-dione
779332-89-7

1,2-bis(3,5-dimethyl-2-thienyl)ethane-1,2-dione

Conditions
ConditionsYield
With aluminium trichloride In n-heptane; 1,2-dichloro-ethane at -20℃; for 2.3h; Friedel-Crafts reaction;44%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

2-bromoaniline
615-36-1

2-bromoaniline

2-(2'-bromophenyl)-3,5-dimethylthiophene
106183-35-1

2-(2'-bromophenyl)-3,5-dimethylthiophene

Conditions
ConditionsYield
With isopentyl nitrite at 70℃; for 4h;43%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

1-(2,3,3,4,4,5,5-Heptafluoro-1-cyclopenten-1-yl)-2-methylnaphthalene
1309657-46-2

1-(2,3,3,4,4,5,5-Heptafluoro-1-cyclopenten-1-yl)-2-methylnaphthalene

3,5-dimethyl-2-[3,3,4,4,5,5-hexafluoro-2-(2-methyl-1-naphthalenyl)-1-cyclopenten-1-yl]thiophene
1628556-77-3

3,5-dimethyl-2-[3,3,4,4,5,5-hexafluoro-2-(2-methyl-1-naphthalenyl)-1-cyclopenten-1-yl]thiophene

Conditions
ConditionsYield
Stage #1: 2,4-dimethylthiophene With N,N,N,N,-tetramethylethylenediamine In diethyl ether at 0℃; Inert atmosphere;
Stage #2: With n-butyllithium In diethyl ether; hexane Inert atmosphere; Reflux;
Stage #3: 1-(2,3,3,4,4,5,5-Heptafluoro-1-cyclopenten-1-yl)-2-methylnaphthalene In diethyl ether; hexane at -70 - 20℃; Inert atmosphere;
43%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

1-[2,4-dimethyl-5-(2'',4'',5''-triphenylimidazolyl-4'-yl)-3-thienyl]perfluorocyclopentene
360561-22-4

1-[2,4-dimethyl-5-(2'',4'',5''-triphenylimidazolyl-4'-yl)-3-thienyl]perfluorocyclopentene

1-(3,5-dimethyl-2-thienyl)-2-[2,4-dimethyl-5-(2'',4'',5''-triphenylimidazol-4'-yl)-3-thienyl]perfluorocyclopentene
360773-76-8

1-(3,5-dimethyl-2-thienyl)-2-[2,4-dimethyl-5-(2'',4'',5''-triphenylimidazol-4'-yl)-3-thienyl]perfluorocyclopentene

Conditions
ConditionsYield
Stage #1: 2,4-dimethylthiophene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h;
Stage #2: 1-[2,4-dimethyl-5-(2'',4'',5''-triphenylimidazolyl-4'-yl)-3-thienyl]perfluorocyclopentene In tetrahydrofuran at -78℃; for 1h; Further stages.;
42%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

3,3-dimethoxy-4-oxo-cyclohexa-1,5-dienecarbonitrile
246222-31-1

3,3-dimethoxy-4-oxo-cyclohexa-1,5-dienecarbonitrile

A

4-(3,5-dimethyl-thiophen-2-yloxy)-3-methoxy-benzonitrile

4-(3,5-dimethyl-thiophen-2-yloxy)-3-methoxy-benzonitrile

(1S,2S,6S,7S)-10,10-Dimethoxy-4,6-dimethyl-11-oxo-3-thia-tricyclo[5.2.2.02,6]undeca-4,8-diene-9-carbonitrile

(1S,2S,6S,7S)-10,10-Dimethoxy-4,6-dimethyl-11-oxo-3-thia-tricyclo[5.2.2.02,6]undeca-4,8-diene-9-carbonitrile

Conditions
ConditionsYield
for 5h; Diels-Alder reaction; Heating;A 3%
B 40%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

4-acetyl-6,6-dimethoxy-cyclohexa-2,4-dienone
219755-75-6

4-acetyl-6,6-dimethoxy-cyclohexa-2,4-dienone

A

1-[2-(3,5-dimethyl-thiophen-2-yl)-4-hydroxy-3-methoxy-phenyl]-ethanone

1-[2-(3,5-dimethyl-thiophen-2-yl)-4-hydroxy-3-methoxy-phenyl]-ethanone

(1S,2S,6S,7S)-10-Acetyl-9,9-dimethoxy-4,6-dimethyl-3-thia-tricyclo[5.2.2.02,6]undeca-4,10-dien-8-one

(1S,2S,6S,7S)-10-Acetyl-9,9-dimethoxy-4,6-dimethyl-3-thia-tricyclo[5.2.2.02,6]undeca-4,10-dien-8-one

Conditions
ConditionsYield
for 5h; Diels-Alder reaction; Heating;A 33%
B 21%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

3,3-dimethoxy-4-oxo-cyclohexa-1,5-dienecarboxylic acid methyl ester
124667-66-9

3,3-dimethoxy-4-oxo-cyclohexa-1,5-dienecarboxylic acid methyl ester

A

4-(3,5-dimethyl-thiophen-2-yloxy)-3-methoxy-benzoic acid methyl ester

4-(3,5-dimethyl-thiophen-2-yloxy)-3-methoxy-benzoic acid methyl ester

B

2-(3,5-dimethyl-thiophen-2-yl)-4-hydroxy-3-methoxy-benzoic acid methyl ester

2-(3,5-dimethyl-thiophen-2-yl)-4-hydroxy-3-methoxy-benzoic acid methyl ester

(1S,2S,6S,7S)-10,10-Dimethoxy-4,6-dimethyl-11-oxo-3-thia-tricyclo[5.2.2.02,6]undeca-4,8-diene-9-carboxylic acid methyl ester

(1S,2S,6S,7S)-10,10-Dimethoxy-4,6-dimethyl-11-oxo-3-thia-tricyclo[5.2.2.02,6]undeca-4,8-diene-9-carboxylic acid methyl ester

Conditions
ConditionsYield
for 5h; Diels-Alder reaction; Heating;A 6%
B 12%
C 32%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

chloromethyl methyl ether
107-30-2

chloromethyl methyl ether

2,4-bis(chloromethyl)-3,5-dimethylthiophene
133296-08-9

2,4-bis(chloromethyl)-3,5-dimethylthiophene

Conditions
ConditionsYield
With titanium tetrachloride In carbon disulfide Ambient temperature;22%
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

carbamic chloride
463-72-9

carbamic chloride

3,5-dimethyl-thiophene-2-carboxylic acid amide
98547-25-2

3,5-dimethyl-thiophene-2-carboxylic acid amide

Conditions
ConditionsYield
With carbon disulfide; aluminium trichloride
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

acetic anhydride
108-24-7

acetic anhydride

1-(3,5-dimethyl-[2]thienyl)-ethanone
50382-14-4

1-(3,5-dimethyl-[2]thienyl)-ethanone

Conditions
ConditionsYield
With phosphoric acid; benzene
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

acetyl chloride
75-36-5

acetyl chloride

3-Acetyl-2,5-dimethylthiophen
2530-10-1

3-Acetyl-2,5-dimethylthiophen

Conditions
ConditionsYield
With tin(IV) chloride; benzene
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

2-iodo-3,5-dimethyl-thiophene

2-iodo-3,5-dimethyl-thiophene

Conditions
ConditionsYield
With iodine; mercury(II) oxide; benzene
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

3,5-dimethyl-2-thiophenecarboxaldehyde
85895-83-6

3,5-dimethyl-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With n-butyllithium; diethyl ether
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

3,5-dimethyl-thiophene-2,4-disulfonyl chloride

3,5-dimethyl-thiophene-2,4-disulfonyl chloride

Conditions
ConditionsYield
With sulfuric acid; sulfur trioxide Erwaermen des Dinatrium-Salzes der erhaltenen Disulfonsaeure mit Phosphor(V)-chlorid;
2,4-dimethylthiophene
638-00-6

2,4-dimethylthiophene

3-hydroxy-3,5-dimethyl-2,3-dihydro-[2]thienylmercury (1+); mercury chloride-double salt of chloride

3-hydroxy-3,5-dimethyl-2,3-dihydro-[2]thienylmercury (1+); mercury chloride-double salt of chloride

Conditions
ConditionsYield
With ethanol; sodium acetate; mercury dichloride

Hot Products

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View