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
Cas:5380-42-7
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur 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
Cas:5380-42-7
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryWITH 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
Cas:5380-42-7
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1.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
Cas:5380-42-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryMETHYL THIOPHENE-2-CARBOXYLATE CAS: 5380-42-7 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 or
Cas:5380-42-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHello, 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
Cas:5380-42-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHenan 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
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryThe 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
Cas:5380-42-7
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryJ&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
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryZibo 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
Cas:5380-42-7
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiry2-Thiophenecarboxylicacid, methyl ester Methyl thiophene-2-carboxylate; METHYL THIOPHENE-2-CARBOXYLATE; Methylthiophene-2-carboxylate; CAS No.: 5380-42-7 Molecular formula: C6H6O2S Molecular weight: 142.17600 Exact quality: 142.00900 PSA: 5
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
Cas:5380-42-7
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryHunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
Cas:5380-42-7
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryShandong 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
Cas:5380-42-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.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
Cas:5380-42-7
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryHigh quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
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
Cas:5380-42-7
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryLower 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
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
1. Product advantages? High purity, all above 98.5%, no impurities after dissolution? We will test each batch to ensure quality? OEM and private brand services designed for free? Various cap colors available? We can also provide MT1 peptide powder2.
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
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryMethyl thiophene-2-carboxylate Application:Methyl thiophene-2-carboxylate
2-Thiophenecarboxylicacid, methyl ester cas 5380-42-7Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Other
inquiryBest quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry5380-42-7 Application:intermediate
Cas:5380-42-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry2-thiophenylcarboxylic acid
dimethyl sulfate
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With lithium hydroxide In tetrahydrofuran for 0.5h; Methylation; esterification; Heating; | 100% |
2-thienyl chloride
methanol
carbon monoxide
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With potassium carbonate; methyl chloroacetate; dicobalt octacarbonyl at 60℃; | 98% |
thiophene-2-carbaldehyde
methanol
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
Stage #1: methanol With 1,8-diazabicyclo[5.4.0]undec-7-ene; 1,4-dimethyl-1,2,4-triazolium iodide In tetrahydrofuran for 0.0833333h; Inert atmosphere; Stage #2: thiophene-2-carbaldehyde With 3,5,3',5'-tetra-tert-butyl-4,4'-diphenoquinone In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; | 97% |
With FeMo6O24(9-)*3H3N*9H(1+); potassium chloride; dihydrogen peroxide at 65℃; for 24h; Schlenk technique; | 89% |
With sodium hydrogen sulfate; iodine; potassium hydroxide at 0℃; for 2h; | 89% |
2-thiophenylcarboxylic acid
methyl iodide
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
Stage #1: 2-thiophenylcarboxylic acid With sodium t-butanolate In dimethyl sulfoxide for 0.166667h; Inert atmosphere; Stage #2: methyl iodide In dimethyl sulfoxide at 0 - 20℃; for 18h; | 97% |
With sodium carbonate In N,N-dimethyl-formamide at 20℃; for 18h; Inert atmosphere; | 78% |
methanol
2-thiophenylcarboxylic acid
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With thionyl chloride at 0 - 20℃; for 3h; | 96% |
With iron(III) sulfate; sulfuric acid for 1h; Heating; | 95% |
With thionyl chloride for 36h; Inert atmosphere; Schlenk technique; Reflux; | 93% |
Conditions | Yield |
---|---|
With dihydrogen peroxide for 3h; Irradiation; | 96% |
With oxygen at 20℃; for 12h; Irradiation; | 93% |
With iodine; potassium carbonate for 39h; Heating; | 91% |
2-Iodothiophene
methanol
carbon monoxide
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With triethylamine at 100℃; for 1.5h; Inert atmosphere; | 96% |
With palladium diacetate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In N,N-dimethyl-formamide; toluene at 100℃; under 5250.53 Torr; continuous flow reactor; | 71% |
With palladium diacetate; triethylamine; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In N,N-dimethyl-formamide; toluene at 100℃; under 5250.53 Torr; Flow reactor; | 71% |
2-bromothiophene
methanol
carbon monoxide
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With potassium carbonate; methyl chloroacetate; dicobalt octacarbonyl at 60℃; | 95% |
2-thiophenylcarboxylic acid
carbonic acid dimethyl ester
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With triethylamine at 160℃; for 3h; Autoclave; Green chemistry; | 95% |
With diiron nonacarbonyl at 180℃; for 1h; Sealed tube; | 95% |
With tributyl-amine In N,N-dimethyl-formamide at 285℃; under 112511 Torr; for 0.05h; | 81% |
2-Iodothiophene
Methyl formate
sodium methylate
A
thiophene
B
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
bis-triphenylphosphine-palladium(II) chloride In dichloromethane at 80℃; under 11250.9 Torr; for 0.75h; | A 7% B 93% |
2-thiophenylcarboxylic acid
Methyl trichloroacetate
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With 18-crown-6 ether; potassium carbonate at 90 - 150℃; for 2h; | 93% |
Methyl 3-aminothiophene-2-carboxylate
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate; sodium nitrite In N,N-dimethyl-formamide at 20℃; for 1h; | 92% |
With tetrahydrofuran; tert.-butylnitrite; salicylic acid at 20℃; for 3h; Schlenk technique; Inert atmosphere; | 50% |
With hydrogenchloride; sodium tetrafluoroborate; diazonium fluoroborate; sodium nitrite Multistep reaction; | |
Multi-step reaction with 2 steps 1: 97 percent / i-pentyl nitrite; HCOOH / 0 - 5 °C 2: 10 percent / Pd(OAc)2 / ethanol / 0.25 h / 70 °C View Scheme | |
Stage #1: Methyl 3-aminothiophene-2-carboxylate With tetrafluoroboric acid; acetic acid; isopentyl nitrite In water at 20℃; for 0.0833333h; Stage #2: With eosin B disodium salt In N,N-dimethyl-formamide at 18℃; for 0.5h; Inert atmosphere; Irradiation; | 76 %Chromat. |
Conditions | Yield |
---|---|
With diethylamine; lithium bromide at 20℃; for 24h; neat (no solvent); | 92% |
potassium methanolate
2-thiophenemethanol
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With tellurium; bismuth (III) nitrate pentahydrate; 5%-palladium/activated carbon; oxygen In methanol at 60℃; under 760.051 Torr; for 8h; Catalytic behavior; Temperature; Reagent/catalyst; | 92% |
2-thiophenylcarboxylic acid
1-methoxy-2,2,6,6-tetramethylpiperidine
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With 2,6-di-tert-butyl-pyridine In acetonitrile at 21 - 25℃; for 18h; Electrochemical reaction; | 92% |
2-thiophenylcarboxylic acid
1,2-dichloro-ethane
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With sulfuric acid In methanol | 90% |
thiophene-2-carbaldehyde
tert.-butylhydroperoxide
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With copper (II)-fluoride In water; dimethyl sulfoxide at 120℃; for 12h; Schlenk technique; Inert atmosphere; Green chemistry; | 90% |
With copper quinolate; tetra-(n-butyl)ammonium iodide In water; dimethyl sulfoxide at 120℃; for 24h; | 65% |
methanol
carbon monoxide
2-thienylphenyliodonium tosylate
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
palladium diacetate In N,N-dimethyl-formamide under 760 Torr; for 0.5h; Ambient temperature; | 89% |
Conditions | Yield |
---|---|
With [2,2]bipyridinyl; bis(1,5-cyclooctadiene)nickel (0) In toluene at 25℃; for 12h; Sealed tube; Inert atmosphere; Green chemistry; chemoselective reaction; | 89% |
5-bromo-2-thiophenecarboxylic acid methyl ester
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With sodium tetrahydroborate; N,N,N,N,-tetramethylethylenediamine; palladium diacetate; triphenylphosphine In tetrahydrofuran at 20℃; for 2h; Reagent/catalyst; Time; Inert atmosphere; chemoselective reaction; | 88% |
With sodium tetrahydroborate; N,N,N,N,-tetramethylethylenediamine; palladium diacetate; triphenylphosphine In tetrahydrofuran at 25℃; for 3h; Inert atmosphere; regioselective reaction; | 88% |
3-thiophene carboxaldehyde
methanol
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide In decane at 25℃; for 10h; Inert atmosphere; | 88% |
Trimethyl orthoacetate
2-thiophenylcarboxylic acid
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
microwave irradiation; | 85% |
2-bromothiophene
methanol
carbon monoxide
A
2-thiophenylcarboxylic acid
B
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With CoCRACO; sodium tert-pentoxide; sodium hydride In tetrahydrofuran for 14h; Irradiation; | A 2% B 83% |
With CoCRACO; sodium tert-pentoxide; sodium hydride In tetrahydrofuran for 13h; Irradiation; | A 2% B 83% |
With tert-Amyl alcohol; sodium hydride; cobalt(II) acetate In tetrahydrofuran at 40℃; under 760 Torr; for 13h; Irradiation; | A 2% B 83% |
2-bromothiophene
carbon monoxide
A
2-thiophenylcarboxylic acid
B
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With methanol; tert-Amyl alcohol; sodium hydride; cobalt(II) acetate In tetrahydrofuran at 40℃; under 760 Torr; for 13h; Irradiation; | A 2% B 83% |
Conditions | Yield |
---|---|
With sodium cyanide; potassium iodide at 15℃; Electrochemical reaction; | 83% |
2-thiophenylcarboxylic acid
methyl salicylate
A
thiophene-2-carboxylic acid methyl ester
B
salicylic acid
Conditions | Yield |
---|---|
Stage #1: 2-thiophenylcarboxylic acid With potassium carbonate In N,N-dimethyl acetamide at 110℃; for 0.5h; Stage #2: methyl salicylate at 110℃; for 24h; | A 83% B n/a |
Conditions | Yield |
---|---|
With [2,2]bipyridinyl; bis(1,5-cyclooctadiene)nickel (0) In toluene at 20℃; for 1h; Sealed tube; chemoselective reaction; | 83% |
2-thienyl chloride
methanol
carbon monoxide
A
2-thiophenylcarboxylic acid
B
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With tert-Amyl alcohol; sodium hydride; cobalt(II) acetate In tetrahydrofuran at 40℃; under 760 Torr; for 15h; Irradiation; | A 7% B 81% |
With CoCRACO; sodium tert-pentoxide; sodium hydride In tetrahydrofuran for 40h; Irradiation; | A 8.5% B 78.5% |
2-thienyl chloride
carbon monoxide
A
2-thiophenylcarboxylic acid
B
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With methanol; tert-Amyl alcohol; sodium hydride; cobalt(II) acetate In tetrahydrofuran at 40℃; under 760 Torr; for 15h; Irradiation; | A 7% B 81% |
Conditions | Yield |
---|---|
With sodium; diphenyldisulfane In 1-methyl-pyrrolidin-2-one at 90℃; for 0.25h; | 100% |
With hydrogenchloride In 1,4-dioxane for 1h; Heating; | 97% |
With potassium carbonate; thiophenol In 1-methyl-pyrrolidin-2-one at 190℃; for 0.166667h; Substitution; | 75% |
Conditions | Yield |
---|---|
Stage #1: thiophene-2-carboxylic acid methyl ester; 1-octadecanol In xylene for 0.5h; Heating; Stage #2: With TiO(acac)2 In xylene for 13h; Heating; | 99% |
With iron(III)-acetylacetonate; sodium carbonate In n-heptane at 105℃; for 5h; Inert atmosphere; | 96% |
thiophene-2-carboxylic acid methyl ester
O-methyl thiophene-2-carbothioate
Conditions | Yield |
---|---|
With Lawessons reagent In 5,5-dimethyl-1,3-cyclohexadiene at 150℃; for 3h; | 99% |
With Lawessons reagent In 5,5-dimethyl-1,3-cyclohexadiene Lawesson Thiocarbonylation; Inert atmosphere; Reflux; |
Conditions | Yield |
---|---|
In diethyl ether at 20℃; for 0.5h; | 98% |
thiophene-2-carboxylic acid methyl ester
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 4,4'-di-tert-butyl-2,2'-bipyridine In tetrahydrofuran at 70℃; for 16h; Inert atmosphere; | 97% |
With 4,4'-di(tert-butyl)-2,2'-dipyridyl; [Ir(μ2-OMe)(1,4-cyclooctadiene)]2 In hexane at 20℃; for 0.5h; | 94% |
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 4,4'-di-tert-butyl-2,2'-bipyridine In hexane at 25℃; for 0.5h; regioselective reaction; | 95 %Chromat. |
thiophene-2-carboxylic acid methyl ester
hexan-1-ol
hexyl thiophene-2-carboxylate
Conditions | Yield |
---|---|
With tetrabutylammonium acetate; oxiranyl-methanol In hexane for 6h; Reflux; | 97% |
thiophene-2-carboxylic acid methyl ester
ethanolamine
N-(2-Hydroxyethyl)amide of thiophen-2-carboxylic acid
Conditions | Yield |
---|---|
96% |
thiophene-2-carboxylic acid methyl ester
ethanolamine
2-(thiophen-2-yl)-4,5-dihydrooxazole
Conditions | Yield |
---|---|
96% |
Conditions | Yield |
---|---|
With N,N'-biscyclohexyl-imidazol-2-ylidene; 4 A molecular sieve In tetrahydrofuran at 20℃; for 0.25h; | 96% |
thiophene-2-carboxylic acid methyl ester
tris(methylthio)methane
A
tetrathioorthocarbonic acid tetramethyl ester
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; hexane 1.) -95 deg C, 2 h, 2.) -78 deg C, 30 min; | A n/a B 95% |
thiophene-2-carboxylic acid methyl ester
benzyl-methyl-amine
N-benzyl-N-methylthiophene-2-carboxamide
Conditions | Yield |
---|---|
Stage #1: thiophene-2-carboxylic acid methyl ester With potassium phosphate; 2,2,2-trifluoroethanol In 1,4-dioxane at 125℃; for 0.5h; Sealed tube; Schlenk technique; Inert atmosphere; Stage #2: benzyl-methyl-amine In 1,4-dioxane at 125℃; for 22h; Sealed tube; Schlenk technique; Inert atmosphere; | 95% |
thiophene-2-carboxylic acid methyl ester
chloromethyl methyl ether
4,5-Bis-chloromethyl-thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With titanium tetrachloride for 5h; Inert atmosphere; Cooling with ice; | 93.2% |
With titanium tetrachloride at 0℃; for 1h; | 87% |
With zinc(II) chloride at 20 - 60℃; for 3.25h; Inert atmosphere; | 61% |
thiophene-2-carboxylic acid methyl ester
Pentafluorobenzene
methyl 5-(perfluorophenyl)thiophene-2-carboxylate
Conditions | Yield |
---|---|
With oxygen; palladium diacetate; silver(l) oxide; Trimethylacetic acid In dimethyl sulfoxide; N,N-dimethyl-formamide at 120℃; under 760.051 Torr; for 9h; Autoclave; | 92% |
With palladium diacetate; acetic acid; silver carbonate In dimethyl sulfoxide; N,N-dimethyl-formamide at 120℃; for 7h; Inert atmosphere; regioselective reaction; | 91% |
thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With (Ph3P)Au(I)(OTs); [bis(acetoxy)iodo]benzene In methanol; chloroform at 70℃; for 24h; | 92% |
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