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:583-71-1
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
Cas:583-71-1
Min.Order:1 Kilogram
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Type:Manufacturers
inquiryProduct Description Product website: http://www.finerchem.com Product Name 3-4-Dimethylbromobenzene CAS No. 583-71-1
Cas:583-71-1
Min.Order:1 Gram
FOB Price: $8.0
Type:Lab/Research institutions
inquiryHebei Yanxi Chemical Co., Ltd. is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low car
Cas:583-71-1
Min.Order:1 Metric Ton
FOB Price: $1.0 / 2.0
Type:Manufacturers
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:583-71-1
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiry1)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 etc. 3) oem/odm available; 4) rea
Cas:583-71-1
Min.Order:1 Gram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryHangzhou 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:583-71-1
Min.Order:0 Metric Ton
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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:583-71-1
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiry4-bromo-1,2-xylene Melting point −12-−10 °C Boiling point 215 °C (lit.) Density 1.37 g/mL at 25 °C (lit.) Refractive index n20/D 1.555(lit.) Flash point 177 °F Storage conditions Store below +30°C. Wate
Product name: 3,4-dimethylbromobenzene CAS No.:583-71-1 Molecule Formula:C8H9Br Molecule Weight:185.06 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING ITE
Cas:583-71-1
Min.Order:1 Kilogram
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Type:Trading Company
inquiryLocated in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service an
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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 custom synthe
Cas:583-71-1
Min.Order:0
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Type:Lab/Research institutions
inquiryCapability on chemical synthesis1. Beijing High-Tech Enterprises2. Strong R&D Team3. 8 years of experiences in R & D of high-tech Catalyst;4. 5000 production techniques, 69 items of national patents, and 360 kinds of products on sales;5. The producti
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
Hangzhou Dingyan Chem 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 quality in your re
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
Cas:583-71-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiryOur clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city?in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new api,?intermediat
Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:583-71-1
Min.Order:1 Kilogram
FOB Price: $112.0
Type:Trading Company
inquiryAnsciep 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
Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home an
Cas:583-71-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirylow price and high purityAppearance:solid or liquid Storage:in sealed air resistant place Package:As customer require Application:Pharma;Industry;Agricultural Transportation:by sea or by airplane Port:any port in China
Quality assurance, stable process and affordable priceAppearance:detailed see specifications Storage:enquiry Package:according to the clients requirement Application:Pharmaceutical intermediates Transportation:Normal Port:chengdu
Our mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:583-71-1
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With K10-montmorillonite clay; bromine In tetrachloromethane for 1.5h; Ambient temperature; | 96% |
With carbon dioxide; bromine at 40℃; under 187519 Torr; for 2h; Supercritical conditions; Green chemistry; | 95% |
With tetrabutylammomium bromide; dihydrogen peroxide; vanadia In water; acetonitrile at 5℃; for 1.5h; Bromination; | 92% |
Conditions | Yield |
---|---|
With bromine; acetic acid | A 82% B 18% |
With bromine; iodine In dichloromethane at -10 - 20℃; for 7.58333h; | A 75% B 15% |
With hydrogenchloride; sodium hypochlorite; sodium bromide In water at 29.85℃; for 8h; Product distribution; Further Variations:; Temperatures; | A 24.6% B 68.5% |
Methyl fluoride
para-bromotoluene
A
1-bromo-2,4-dimethylbenzene
B
4-bromo-o-xylene
Conditions | Yield |
---|---|
With oxygen at 40℃; under 720 Torr; Mechanism; Irradiation; | A 72% B 28% |
Conditions | Yield |
---|---|
With copper(ll) bromide |
Conditions | Yield |
---|---|
With sulfuric acid Diazotization.Behandlung der Diazoniumsalz-Loesung mit CuBr in der Waerme; | |
(i) (diazotization), aq. HBr, (ii) Cu; Multistep reaction; |
o-xylene
A
4-bromo-o-xylene
B
2,3-dimethylbromobenzene
C
2-methylbenzyl bromide
D
α,α'-dibromo-o-xylene
Conditions | Yield |
---|---|
With bromine In water for 0.333333h; Ambient temperature; Irradiation; | A 3 % Chromat. B 2 % Chromat. C 16 % Chromat. D 79 % Chromat. |
o-xylene
bromine
iodine
A
4-bromo-o-xylene
B
dibromoxylene
C
1,2-dibromo-4,5-dimethylbenzene
D
1,2,3,4-tetrabromo-5,6-dimethylbenzene
4-bromo-o-xylene
Conditions | Yield |
---|---|
With N-Bromosuccinimide In water at 150℃; under 2625.26 Torr; for 0.0666667h; Irradiation; | A 11 % Chromat. B 51 % Chromat. |
styrene
4-bromo-o-xylene
(E)-1,2-dimethyl-4-stirylbenzene
Conditions | Yield |
---|---|
With {1,3-bis[2,6-bis(propan-2-yl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene}dichloro(pyridine)palladium; caesium carbonate In neat (no solvent) at 100℃; for 12h; Heck Reaction; | 99% |
Conditions | Yield |
---|---|
Stage #1: 4-bromo-o-xylene; thiophenol With bis(benzonitrile)palladium(II) dichloride; sodium acetate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene Inert atmosphere; Glovebox; Stage #2: 9-methyl-9H-fluorene-9-carbonyl chloride With N-Methyldicyclohexylamine; bis(dibenzylideneacetone)-palladium(0); tri tert-butylphosphoniumtetrafluoroborate at 120℃; for 18h; Inert atmosphere; Glovebox; | 98% |
4-bromo-o-xylene
4-bromo-1,2-dicyanobenzene
Conditions | Yield |
---|---|
With ammonia; oxygen at 359.84℃; Temperature; | 97.3% |
4-bromo-o-xylene
3,4-dimethylphenylmagnesium bromide
Conditions | Yield |
---|---|
With iodine In tetrahydrofuran | 96.3% |
With iodine; magnesium In diethyl ether Inert atmosphere; Reflux; |
Conditions | Yield |
---|---|
With copper(I) bromide In methanol at 125 - 130℃; for 4h; Autoclave; | 96% |
3,4-dimethylbenzaldehyde
4-bromo-o-xylene
3,3',4,4'-tetramethylbenzophenone
Conditions | Yield |
---|---|
Stage #1: 4-bromo-o-xylene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.666667h; Stage #2: 3,4-dimethylbenzaldehyde In tetrahydrofuran; hexane at -78 - 20℃; Stage #3: With iodine; potassium carbonate In tert-butyl alcohol at 90℃; for 8h; | 95% |
4-bromo-o-xylene
3-aminopentane
N-(1-ethylpropyl)-3,4-dimethyl-benzenamine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate; caesium carbonate In toluene at 80℃; for 6h; Reagent/catalyst; Buchwald-Hartwig Coupling; | 93.7% |
4-bromo-o-xylene
4-bromo-1,2-bis-bromomethyl-benzene
Conditions | Yield |
---|---|
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane for 1h; Heating / reflux; | 93% |
With bromine; dibenzoyl peroxide at 125 - 130℃; for 2h; | 87% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane for 3h; Reflux; | 80.1% |
Conditions | Yield |
---|---|
With iodine; magnesium; nickel dichloride at 90℃; for 8h; Inert atmosphere; | 91% |
With [2,2]bipyridinyl; nickel; zinc; triphenylphosphine In N,N-dimethyl-formamide at 90℃; for 24h; | 80% |
With tetraethylammonium tosylate; tetrakis(triphenylphosphine) palladium(0) In N,N-dimethyl-formamide Ambient temperature; electrolysis; | 78% |
Conditions | Yield |
---|---|
With palladium diacetate; 1,8-diazabicyclo[5.4.0]undec-7-ene; catacxium A In acetonitrile at 140℃; for 16h; Inert atmosphere; | 91% |
potassium hydrogenfluoride
diisopropylamine borane
4-bromo-o-xylene
Conditions | Yield |
---|---|
Stage #1: diisopropylamine borane; 4-bromo-o-xylene With magnesium In tetrahydrofuran at 70℃; Stage #2: With methanol In tetrahydrofuran at 0℃; for 1h; Stage #3: potassium hydrogenfluoride In methanol; water at 20℃; for 1h; | 91% |
Conditions | Yield |
---|---|
With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In 1,4-dioxane; toluene at 80℃; Schlenk technique; Inert atmosphere; | 90% |
Conditions | Yield |
---|---|
With N-Methyldicyclohexylamine; [{Pd(cinnamyl)Cl}2]; 9-methyl-9H-fluorene-9-carbonyl chloride; bis(dibenzylideneacetone)-palladium(0); tri tert-butylphosphoniumtetrafluoroborate In 1,4-dioxane; toluene at 95℃; for 16h; Sealed tube; Glovebox; Inert atmosphere; | 90% |
Conditions | Yield |
---|---|
With C43H58ClO2PPd; sodium t-butanolate; ruphos In tetrahydrofuran at 85℃; for 6h; Inert atmosphere; | 90% |
4-bromo-o-xylene
N-benzyl-(S)-proline methyl ester
Conditions | Yield |
---|---|
Stage #1: 4-bromo-o-xylene With iodine; magnesium In tetrahydrofuran at 65℃; for 1h; Stage #2: N-benzyl-(S)-proline methyl ester In tetrahydrofuran for 1h; | 90% |
Conditions | Yield |
---|---|
With bis(tri-t-butylphosphine)palladium(0); potassium tert-butylate In toluene for 2h; Reflux; Inert atmosphere; | 90% |
chloro-trimethyl-silane
4-bromo-o-xylene
(3,4-dimethylphenyl)-trimethylsilane
Conditions | Yield |
---|---|
Stage #1: 4-bromo-o-xylene With magnesium In tetrahydrofuran at 80℃; for 2h; Stage #2: chloro-trimethyl-silane In tetrahydrofuran for 12h; Reflux; | 88.3% |
Stage #1: 4-bromo-o-xylene With iodine; magnesium In tetrahydrofuran at 50 - 85℃; for 2h; Stage #2: chloro-trimethyl-silane In tetrahydrofuran at -78 - 20℃; for 0.5h; Stage #3: With water In tetrahydrofuran | 77% |
Conditions | Yield |
---|---|
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0); tri-tert-butyl phosphine In 1,1,1,2,3,3,3-Heptafluoropropane; ethanol; 1,1,1,3,3-pentafluorobutane at 20℃; for 24h; Suzuki-Miyaura cross-coupling reaction; Inert atmosphere; | 87% |
With C21H25ClN2Pd; potassium carbonate In toluene at 80℃; for 2h; Suzuki-Miyaura Coupling; | 79% |
With C55H66N2O2; palladium diacetate; potassium carbonate In methanol; dichloromethane at 30℃; for 0.5h; Suzuki-Miyaura Coupling; |
Conditions | Yield |
---|---|
With 1,3-bis[(diphenylphosphino)propane]dichloronickel(II); magnesium; ethylene dibromide In tetrahydrofuran at 20℃; for 2h; Kumada Cross-Coupling; Inert atmosphere; | 87% |
Conditions | Yield |
---|---|
With [(SIPr)PdCl(quinoline‐8‐carboxylate)]; sodium t-butanolate In N,N-dimethyl-formamide at 130℃; for 12h; Reagent/catalyst; | 87% |
4-bromo-o-xylene
Conditions | Yield |
---|---|
With tri-tert-butyl phosphine; caesium carbonate; palladium diacetate In N,N-dimethyl-formamide at 130℃; for 3h; Arylation; | 85% |
Conditions | Yield |
---|---|
With potassium tert-butylate; triphenylphosphine; bis(dibenzylideneacetone)-palladium(0) In toluene at 100℃; for 12h; Catalytic behavior; Schlenk technique; Inert atmosphere; Glovebox; | 85% |
Conditions | Yield |
---|---|
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; palladium 10% on activated carbon; sodium t-butanolate In 1,3,5-trimethyl-benzene for 24h; Inert atmosphere; Reflux; | 83% |
4-bromo-o-xylene
4-(4-ethylcyclohexyl)-2,3-difluorophenylboronic acid
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0) In water; N,N-dimethyl-formamide for 3h; Inert atmosphere; Reflux; | 83% |
potassium cyanate
carbon monoxide
4-bromo-o-xylene
isopropyl alcohol
Conditions | Yield |
---|---|
With dichloro(1,5-cyclooctadiene)palladium(II); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene at 70℃; for 8h; | 82% |
Di-sec-butylamin
4-bromo-o-xylene
Di-sec-butyl-(3,4-dimethyl-phenyl)-amine
Conditions | Yield |
---|---|
With potassium amide for 5h; Heating; | 81% |
Dichloromethylsilane
4-bromo-o-xylene
bis(3,4-dimethylphenyl)(methyl)silane
Conditions | Yield |
---|---|
Stage #1: 4-bromo-o-xylene With magnesium In tetrahydrofuran Inert atmosphere; Stage #2: Dichloromethylsilane In tetrahydrofuran at 0 - 20℃; for 18h; Inert atmosphere; | 81% |
4-bromo-o-xylene
4-chlorobenzaldehyde
1-(3,4-dimethylphenyl)-1-(4-chlorophenyl)methanol
Conditions | Yield |
---|---|
Stage #1: 4-bromo-o-xylene With boric acid tributyl ester; magnesium; lithium chloride In tetrahydrofuran at 25℃; Stage #2: 4-chlorobenzaldehyde In tetrahydrofuran at 25℃; for 1h; | 81% |
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