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:3172-52-9
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inquiryWelcome 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
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inquiry2,5-Dichlorothiophene CAS No.:3172-52-9 Name: 2,5-Dichlorothiophene Molecular Structure Molecular Formula: C4H2Cl2S Molecular Weight: 153.02 CAS Registry Number: 3172-52-9 EINECS: 221-638-
Cas:3172-52-9
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inquiry1. 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
Cas:3172-52-9
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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:3172-52-9
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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:3172-52-9
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inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:liquid Storage:Store in sealed containers at cool & dry pla
Cas:3172-52-9
Min.Order:100 Gram
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inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:3172-52-9
Min.Order:1 Gram
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Type:Lab/Research institutions
inquiryOur 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
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
Cas:3172-52-9
Min.Order:1 Kilogram
FOB Price: $60.0 / 100.0
Type:Lab/Research institutions
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
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
Cas:3172-52-9
Min.Order:0 Metric Ton
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inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
Cas:3172-52-9
Min.Order:1 Gram
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Type:Lab/Research institutions
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
Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
Cas:3172-52-9
Min.Order:1 Gram
FOB Price: $1.0
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inquiryWe 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
Cas:3172-52-9
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:3172-52-9
Min.Order:1 Kilogram
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inquiryProduct name: 2,5-Dichlorothiophene CAS No.:3172-52-9 Molecule Formula:C4H2Cl2S Molecule Weight:153.03 Purity: 99.0% Package: 25kg/drum Description:Colorless to light yellow transparent liquid Manufacture Standards:Enterprise Standard
Cas:3172-52-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
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:3172-52-9
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryWe Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O
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
Cas:3172-52-9
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:3172-52-9
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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:3172-52-9
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:3172-52-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
high 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
1.High quality : the purity is 99% min . through multiple producing procedures. 2.Competitive price : low price because of our skilled production technolpgy ,save the production cost at most , and give big profit room to our customers525.Safe and fa
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
thiophene
2,5-diclorothiophene
Conditions | Yield |
---|---|
With N-chloro-succinimide In tetrachloromethane for 4h; Time; Reflux; | 95% |
With N-chloro-succinimide; perchloric acid In tetrachloromethane for 24h; Ambient temperature; | 82% |
With lead(IV) acetate; tin(IV) chloride In ethyl acetate for 0.25h; | 75% |
With N-chloro-succinimide; perchloric acid In chloroform for 0.5h; Heating; | 67% |
With chlorine anschliessend Erhitzen mit Kaliumhydroxid und Natriumhydroxid; |
Conditions | Yield |
---|---|
With N-chloro-succinimide; perchloric acid In tetrachloromethane for 24h; Ambient temperature; | 82% |
With chlorine anschliessend Erhitzen mit Kaliumhydroxid und Natriumhydroxid; | |
With chlorine Yield given; |
Conditions | Yield |
---|---|
With ammonium nitrate; N-chloro-succinimide In acetonitrile for 1h; | A 59% B 10% |
With hydrogenchloride; sodium peroxide In toluene; benzene at 28 - 30℃; for 0.5h; Product distribution; var. reagents; var. temperatures, var. reaction times; | A 67 % Chromat. B 11 % Chromat. |
With chlorine; potassium carbonate |
2,5-dichlorothiophene-3-carboxylic acid
A
2,5-diclorothiophene
B
2,2',5,5'-tetrachloro-3,3'-bithiophene
Conditions | Yield |
---|---|
With palladium(II) trifluoroacetate; silver carbonate In dimethyl sulfoxide; N,N-dimethyl-formamide at 120℃; for 16h; Inert atmosphere; | A n/a B 57% |
Conditions | Yield |
---|---|
With N-chloro-succinimide In acetic acid for 2h; Chlorination; Heating; | A 26% B 26% |
thiophene
N-chloroacetamide
A
2-thienyl chloride
B
2,5-diclorothiophene
Conditions | Yield |
---|---|
at 60℃; |
2-thiophenylcarboxylic acid
A
2,5-diclorothiophene
B
5-Chlorothiophene-2-carboxylic acid
Conditions | Yield |
---|---|
With alkaline aqueous sodium hypochlorite solution anschliessend Erwaermen mit wss. Salzsaeure; |
2,2,3,4,5,5-hexachloro-tetrahydro-thiophene
2,5-diclorothiophene
Conditions | Yield |
---|---|
With water; zinc |
2,3,4,5-tetrachloro-tetrahydro-thiophene
A
2,4-dichlorothiophene
B
2,5-diclorothiophene
C
2,3-Dichlorothiophene
Conditions | Yield |
---|---|
Erhitzen auf 180grad; optically inactive stereoisomer(ic) of mp: 113 degree; |
2-(methyldichlorosilyl)thiophene
A
2-thienyl chloride
B
2,5-diclorothiophene
C
Methyltrichlorosilane
Conditions | Yield |
---|---|
With chlorine; iron(III) chloride at 20℃; for 5h; Product distribution; other temperatures; various reaction times; other reagents: SO2Cl2, antimony trichloride, iodine.; |
trichloro-thiophen-2-yl-silane
A
thiophene
B
2,5-diclorothiophene
C
trichloro-(5-chloro-thiophen-2-yl)-silane
Conditions | Yield |
---|---|
With chlorine at 20℃; for 6h; Product distribution; other temperatures; various reaction times; presence of catalysator: ferric chloride; UV irradiation; other reagent: SO2Cl2.; |
trichloro-thiophen-2-yl-silane
A
2,5-diclorothiophene
B
trichloro-(5-chloro-thiophen-2-yl)-silane
Conditions | Yield |
---|---|
With chlorine at 20℃; for 6h; Irradiation; Further byproducts given; | A 6.6 g B n/a C n/a D n/a |
2,2,3,4,5,5-hexachloro-tetrahydro-thiophene
water
2,5-diclorothiophene
Conditions | Yield |
---|---|
Erwaermen; |
thiophene
chlorine
A
2-thienyl chloride
B
2,5-diclorothiophene
ethanol
2,3,4,5-tetrachloro-tetrahydro-thiophene
A
3,4-dichlorothiophene
B
2,4-dichlorothiophene
C
2,5-diclorothiophene
Conditions | Yield |
---|---|
optically inactive stereoisomer(ic) of mp: 113 degree; |
thiophene
A
2,5-diclorothiophene
Conditions | Yield |
---|---|
With chlorine; potassium carbonate |
2,5-diclorothiophene
N-(2,2,2-trichloroethylidene)-4-chlorobenzenesulfonamide
Conditions | Yield |
---|---|
With sulfuric acid In Trichloroethylene | 93% |
2,5-diclorothiophene
S-methyl benzenethiosulfonate
2,5-dichloro-3-(methylthio)thiophene
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride In tetrahydrofuran at 25℃; for 0.5h; Inert atmosphere; Stage #2: S-methyl benzenethiosulfonate In tetrahydrofuran for 0.5h; Inert atmosphere; | 92% |
2,5-diclorothiophene
chloroacetyl chloride
2-chloro-1-(2,5-dichlorothiophen-3-yl) ethanone
Conditions | Yield |
---|---|
With aluminium trichloride In carbon disulfide for 1h; Heating; | 91% |
91% | |
With carbon disulfide; aluminum (III) chloride at 20℃; for 17h; Friedel-Crafts Acylation; Inert atmosphere; Reflux; | 91% |
With aluminum (III) chloride In carbon disulfide Friedel Crafts acylation; |
Conditions | Yield |
---|---|
With aluminum (III) chloride In carbon disulfide at 20℃; for 25h; Friedel-Crafts Acylation; | 90% |
With aluminum (III) chloride In carbon disulfide at 20℃; | 76.7% |
With aluminium trichloride In chloroform at 20℃; for 5h; | 52% |
Conditions | Yield |
---|---|
With 4-di-tert-butylphosphanyl-1-phenyl-5-(2,6-dimethoxyphenyl)-1H-[1,2,3]triazole; potassium phosphate; tris-(dibenzylideneacetone)dipalladium(0) In toluene at 100℃; for 12h; Suzuki coupling; Inert atmosphere; | 90% |
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride lithium chloride complex In tetrahydrofuran at 25℃; for 0.05h; Stage #2: 4-chlorobenzaldehyde In tetrahydrofuran at 25℃; for 0.00166667h; | 88% |
2,5-diclorothiophene
N-(2,2,2-trichloroethylidene)benzenesulfonamide
Conditions | Yield |
---|---|
With sulfuric acid In Trichloroethylene | 87% |
2,5-diclorothiophene
N,N-dimethyl-formamide
2,5-dichlorothiophene-4-carboxaldehyde
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride lithium chloride complex In tetrahydrofuran at 25℃; for 0.05h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran at 25℃; for 0.00361111h; | 87% |
2,5-diclorothiophene
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
2-(2,5-dichlorothiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Conditions | Yield |
---|---|
With 4,4'-di(tert-butyl)-2,2'-dipyridyl; [Ir(μ2-OMe)(1,4-cyclooctadiene)]2 In hexane at 20℃; for 20h; | 86% |
Conditions | Yield |
---|---|
at 162 - 190℃; for 8h; | 85% |
2,5-diclorothiophene
2,5-dichloro-3,4-dinitrothiophene
Conditions | Yield |
---|---|
With sulfuric acid; nitric acid at 70℃; | 83% |
With sulfuric acid; nitric acid for 3h; | 82% |
With sulfuric acid; nitric acid 1) 5 deg C, 2) r.t., 12 h; | 77% |
With sulfuric acid; nitric acid |
2,5-diclorothiophene
di-tert-butyl dicarbonate
tert-butyl 2,5-dichlorothiophene-3-carboxylate
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride In tetrahydrofuran at 25℃; for 0.5h; Inert atmosphere; Stage #2: di-tert-butyl dicarbonate In tetrahydrofuran at -20℃; Inert atmosphere; | 82% |
2,5-diclorothiophene
dibenzothiophenium bismethoxycarbonylmethylide
2,5-dichlorothiophenium-1-bis(methoxycarbonyl)methylide
Conditions | Yield |
---|---|
UV-irradiation; | 81% |
2,5-diclorothiophene
o-cyanobromobenzene
2-(2,5-dichlorothiophen-3-yl)benzonitrile
Conditions | Yield |
---|---|
With PdCl(C3H5)(1,4-bis(diphenylphosphino)butane); potassium acetate In N,N-dimethyl-formamide at 150℃; for 20h; Inert atmosphere; Schlenk technique; regioselective reaction; | 81% |
2,5-diclorothiophene
4-aminotiophenol
2,5-bis(4-aminophenylenesulfanyl)thiophene
Conditions | Yield |
---|---|
Stage #1: 4-aminotiophenol With potassium carbonate In toluene at 140℃; for 4h; Dean-Stark; Inert atmosphere; Stage #2: 2,5-diclorothiophene at 120℃; Inert atmosphere; | 80% |
2,5-diclorothiophene
benzoyl chloride
(2,5-dichloro-3-thienyl)(phenyl)methanone
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride In tetrahydrofuran at 25℃; for 0.5h; Inert atmosphere; Stage #2: With copper(I) cyanide*2 lithium chloride In tetrahydrofuran for 0.25h; Inert atmosphere; Stage #3: benzoyl chloride In tetrahydrofuran at -30 - 25℃; | 78% |
With carbon disulfide; aluminium trichloride |
2,5-diclorothiophene
2,5-dichloro-3,4-diiodothiophene
Conditions | Yield |
---|---|
With sulfuric acid; iodine; acetic acid; periodic acid at 90℃; | 78% |
2,5-diclorothiophene
4-bromoisoquinoline
4-(2,5-dichlorothiophen-3-yl)isoquinoline
Conditions | Yield |
---|---|
With PdCl(C3H5)(1,4-bis(diphenylphosphino)butane); potassium acetate In N,N-dimethyl-formamide at 150℃; for 20h; Inert atmosphere; Schlenk technique; regioselective reaction; | 78% |
2,5-diclorothiophene
Ethyl oxalyl chloride
ethyl 2,5-dichloro-3-thienylglyoxylate
Conditions | Yield |
---|---|
With aluminium trichloride In nitromethane 1.) 10 deg C, 1 h, 2.) room temp., 1 h; | 77% |
2,5-diclorothiophene
2-Thiophenecarbonyl chloride
2,5-dichloro-3-(2-thiophenecarbonyl)thiophene
Conditions | Yield |
---|---|
With aluminium trichloride In nitromethane at 20℃; for 24h; | 76% |
With carbon disulfide; aluminium trichloride |
2,5-diclorothiophene
2,5-dichlorothiophene 1,1-dioxide
Conditions | Yield |
---|---|
With dihydrogen peroxide; trifluoroacetic anhydride In acetonitrile at 0 - 20℃; | 76% |
With trifluoroacetyl peroxide In acetonitrile for 4h; | 76% |
With water; fluorine In acetonitrile for 0.333333h; Ambient temperature; | 70% |
With HOF* CH3CN In chloroform; water for 0.5h; Ambient temperature; | 70% |
Thiophene-2-thiol
2,5-diclorothiophene
A
bis(thien-2-yl)sulfide
B
2-thienyl disulfide
Conditions | Yield |
---|---|
at 162 - 186℃; for 11h; | A 76% B 9% C 45% |
at 162 - 186℃; for 10h; | A 28% B 9% C 52% |
2,5-diclorothiophene
ethyl cyanoformate
ethyl 2,5-dichlorothiophene-3-carboxylate
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride In tetrahydrofuran at 25℃; for 0.5h; Inert atmosphere; Stage #2: ethyl cyanoformate In tetrahydrofuran at 0℃; Inert atmosphere; | 76% |
2,5-diclorothiophene
chloromethyl methyl ether
ether chloromethylique au dichloromethyl-3,4-thiophene
Conditions | Yield |
---|---|
With tin(IV) chloride | 75% |
With tin(IV) chloride In carbon disulfide at 0 - 20℃; for 3h; | 69% |
2,5-diclorothiophene
pivaloyl chloride
1-(2,5-dichloro-3-thienyl)-2,2-dimethylpropan-1-one
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride In tetrahydrofuran at 25℃; for 0.5h; Inert atmosphere; Stage #2: With copper(I) cyanide*2 lithium chloride In tetrahydrofuran for 0.25h; Inert atmosphere; Stage #3: pivaloyl chloride In tetrahydrofuran at -20 - 25℃; | 75% |
2,5-diclorothiophene
P-toluenesulfonyl cyanide
2,5-dichlorothiophene-3-carbonitrile
Conditions | Yield |
---|---|
Stage #1: 2,5-diclorothiophene With 2,2,6,6-tetramethylpiperidinylmagnesium chloride In tetrahydrofuran at 25℃; for 0.5h; Inert atmosphere; Stage #2: P-toluenesulfonyl cyanide In tetrahydrofuran at -20℃; Inert atmosphere; | 73% |
2,5-diclorothiophene
dimethyl diazomalonate
2,5-dichlorothiophenium-1-bis(methoxycarbonyl)methylide
Conditions | Yield |
---|---|
With dirhodium tetraacetate | 72% |
With dirhodium tetraacetate |
2,5-diclorothiophene
N-(methoxycarbonyl)aspartic anhydride
4-(2,5-dichlorothiophen-3-yl)-2-methoxycarbonylamino-4-oxobutanoic acid
Conditions | Yield |
---|---|
In 1,2-dichloro-ethane for 4h; Ambient temperature; | 71% |
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