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inquiryWith 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 manufacturin
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inquiry1,3-dibromo-2-(2,6-dibromophenyl)benzene 1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Powder Storage:St
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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
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inquiry1,3-dibromo-2-(2,6-dibromophenyl)benzene CAS:97038-96-5 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
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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
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inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Materi
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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
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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
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inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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inquiryfactory?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
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inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
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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
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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
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inquirySAGECHEM 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
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inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
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inquiryWe 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
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inquiryWe 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
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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
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inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
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inquiryJ&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals
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inquiry1.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.
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inquirybest seller Application:API
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inquiry1,we produce and sell good chemicals around the world.2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%.3,our staff consists of highly qualified in
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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
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inquirybest seller Application:API
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inquiry1,3-DIBROMO-2-(2,6-DIBROMOPHENYL)BENZENECASAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highl
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inquiry1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta
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inquiry1,3-dibromo-2-iodo-benzene
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
Stage #1: 1,3-dibromo-2-iodo-benzene With n-butyllithium; copper(ll) bromide In diethyl ether; hexane at -78℃; for 0.75h; Inert atmosphere; Schlenk technique; Stage #2: With nitrobenzene In diethyl ether; hexane at -78 - 20℃; for 6h; | 60% |
Stage #1: 1,3-dibromo-2-iodo-benzene With n-butyllithium In diethyl ether at -78℃; Ullman coupling; Stage #2: With nitrobenzene; copper(I) bromide Ullman coupling; | 56% |
Stage #1: 1,3-dibromo-2-iodo-benzene With n-butyllithium In diethyl ether; hexane at -78℃; for 1.08333h; Stage #2: With copper(ll) bromide In diethyl ether; hexane at -78℃; for 1.5h; chemoselective reaction; | 48% |
1,3-dibromobenzene
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
Stage #1: 1,3-dibromobenzene With lithium diisopropyl amide In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: With copper(I) cyanide lithium chloride; p-benzoquinone In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; | 60% |
Stage #1: 1,3-dibromobenzene With lithium diisopropyl amide In tetrahydrofuran; hexane at -78℃; for 2h; Stage #2: With copper(l) cyanide; chloranil; lithium chloride | 47% |
Stage #1: 1,3-dibromobenzene With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: With copper(l) cyanide; lithium chloride In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #3: With p-benzoquinone In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; | 42% |
Multi-step reaction with 2 steps 1.1: n-butyllithium; lithium diisopropyl amide / hexane; tetrahydrofuran / 2 h / -78 °C / Inert atmosphere 1.2: 20 °C 2.1: n-butyllithium; copper(ll) bromide / hexane; diethyl ether / 0.75 h / -78 °C / Inert atmosphere; Schlenk technique 2.2: 6 h / -78 - 20 °C View Scheme |
4,6,2',6'-tetrabromo-biphenyl-2,4'-diyldiamine
2,2’,6,6’-tetrabromobiphenyl
1,3-dibromo-2-iodo-benzene
A
1,2,3-tribromobenzene
B
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
With n-butyllithium; copper(ll) bromide 1.) ether, hexane, -78 deg C, 2 h, 2.) ether, hexane, from -78 deg C to RT, 12 h; Multistep reaction. Yields of byproduct given; |
1,3-dibromo-2-iodo-benzene
A
1,3-dibromo-2-chlorobenzene
B
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
With n-butyllithium; copper dichloride 1.) ether, hexane, -78 deg C, 2 h, 2.) ether, hexane, from -78 deg C to RT, 12 h; Multistep reaction. Yields of byproduct given; | |
With n-butyllithium; copper dichloride 1.) ether, hexane, -78 deg C, 2 h, 2.) ether, hexane, from -78 deg C to RT, 12 h; Yield given. Multistep reaction; |
2,2',4,4',6,6'-hexabromo-1,1'-biphenyl
A
2,2’,6,6’-tetrabromobiphenyl
B
2,4,2’,4’-tetrabromobiphenyl
C
2,4,2',6'-tetrabromo-biphenyl
Conditions | Yield |
---|---|
Stage #1: 2,2',4,4',6,6'-hexabromo-1,1'-biphenyl With n-butyllithium In tetrahydrofuran at -78℃; for 0.166667h; Inert atmosphere; Stage #2: With methanol In tetrahydrofuran at -78 - 20℃; Inert atmosphere; | A 6 %Chromat. B 30 %Chromat. C 63 %Chromat. |
2,6-dibromoaniline
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: sulfuric acid / 0.17 h / 0 °C 1.2: 3 h / 0 °C 1.3: 0.5 h / 0 °C 2.1: n-butyllithium / diethyl ether; hexane / 1.08 h / -78 °C 2.2: 1.5 h / -78 °C View Scheme |
chloro-trimethyl-silane
2,2’,6,6’-tetrabromobiphenyl
trimethyl(2',6,6'-tribromo-1,1'-biphenyl-2-yl)silane
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran at -80℃; Stage #2: chloro-trimethyl-silane In tetrahydrofuran | 100% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -75℃; Stage #2: chloro-trimethyl-silane In tetrahydrofuran; hexane at -75 - 25℃; Further stages.; | 88% |
2,2’,6,6’-tetrabromobiphenyl
bis(pinacol)diborane
4,4'-bis(pinacolatoboronyl)-2,2'6,6'-tetrabromobiphenyl
Conditions | Yield |
---|---|
(1,5-cyclooctadiene)(methoxy)iridium(I) dimer In further solvent(s) tert-butylmethyl ether, 60°C; | 93% |
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 4,4'-di-tert-butyl-2,2'-bipyridine In tert-butyl methyl ether for 21h; Inert atmosphere; Reflux; | 91% |
2,2’,6,6’-tetrabromobiphenyl
2,2,,6-tribromobiphenyl
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes at -75℃; Stage #2: With methanol; water In tetrahydrofuran; hexanes | 91% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes at -75℃; Stage #2: With methanol In tetrahydrofuran; hexanes Product distribution / selectivity; | 91% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes Stage #2: With methanol Product distribution / selectivity; | 91% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes Stage #2: With methanol In tetrahydrofuran; hexanes | 91% |
2,2’,6,6’-tetrabromobiphenyl
N,N-dimethyl-formamide
(6,6'-dibromobiphenyl-2,2'-diyl)dicarbaldehyde
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane at -78℃; for 0.5h; Stage #3: With hydrogenchloride In water; ethyl acetate | 90% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran Stage #2: N,N-dimethyl-formamide | 85% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran Stage #2: N,N-dimethyl-formamide In tetrahydrofuran | 72% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-bis(dimethylamino)cyclohexane In toluene at -78℃; for 2h; Inert atmosphere; Stage #2: N,N-dimethyl-formamide In toluene at -78 - 20℃; Inert atmosphere; |
2,2’,6,6’-tetrabromobiphenyl
1,2-dibromomethane
4,4,8,8-Tetrabrom-4,8-dihydrodibenzopentalen
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); sodium t-butanolate In toluene at 65℃; for 18h; | 87% |
2,2’,6,6’-tetrabromobiphenyl
dimethylsilicon dichloride
1,9-dibromo-5,5-dimethyldibenzosilole
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium Stage #2: dimethylsilicon dichloride | 85% |
2,2’,6,6’-tetrabromobiphenyl
methyl iodide
2,6,6'-tribromo-2'-methoxy-1,1'-biphenyl
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -75℃; Stage #2: With sodium hydroxide; fluorodimethoxyborane diethyl etherate; dihydrogen peroxide In tetrahydrofuran; hexane at -75 - 25℃; Stage #3: methyl iodide With potassium hydroxide In dimethyl sulfoxide for 1h; Further stages.; | 82% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes at -75℃; Stage #2: With sodium hydroxide; fluorodimethoxyborane diethyl etherate; dihydrogen peroxide In tetrahydrofuran; hexanes; water at -75℃; Stage #3: methyl iodide With hydrogenchloride; potassium hydroxide more than 3 stages; | 82% |
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; Inert atmosphere; Stage #2: With iodine In tetrahydrofuran; hexane at -78 - 20℃; | 82% |
2,2’,6,6’-tetrabromobiphenyl
2,6,6'-tribromo-1,1'-biphenyl-2-ol
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -75℃; Stage #2: With sodium hydroxide; fluorodimethoxyborane diethyl etherate; dihydrogen peroxide In tetrahydrofuran; hexane at -75 - 25℃; Further stages.; | 81% |
Multi-step reaction with 2 steps 1.1: n-BuLi / hexane; tetrahydrofuran / -75 °C 1.2: hexane; tetrahydrofuran 2.1: aq. NaOH; H2O2 / tetrahydrofuran View Scheme | |
With sodium hydroxide; n-butyllithium; dihydrogen peroxide; fluorodimethoxyborane-diethyl etherate In tetrahydrofuran; hexane; water at -75℃; |
chloromethyl formate
2,2’,6,6’-tetrabromobiphenyl
4,5‐dibromo‐9H‐fluoren‐9‐one
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: chloromethyl formate In tetrahydrofuran; hexane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere; | 78% |
2,2’,6,6’-tetrabromobiphenyl
methyl chloroformate
4,5‐dibromo‐9H‐fluoren‐9‐one
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; hexane at 20℃; | 78% |
With tert.-butyl lithium In tetrahydrofuran; hexane at 20℃; | 78% |
With n-butyllithium In tetrahydrofuran; hexane at 20℃; | 78% |
2,2’,6,6’-tetrabromobiphenyl
1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 73% |
2,2’,6,6’-tetrabromobiphenyl
1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 73% |
2,2’,6,6’-tetrabromobiphenyl
1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 73% |
2,2’,6,6’-tetrabromobiphenyl
1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 73% |
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 73% |
2,2’,6,6’-tetrabromobiphenyl
A
1,8-di-bromobiphenylene
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Metallation; Stage #2: With zinc dibromide In tetrahydrofuran; hexane at -50℃; for 2h; Transmetallation; Stage #3: With copper dichloride In tetrahydrofuran; hexane at -78 - 20℃; Elimination; Substitution; | A 72% B n/a |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Stage #2: With zinc dibromide In tetrahydrofuran; hexane at -50℃; for 2h; Stage #3: With copper dichloride In tetrahydrofuran; hexane at -78 - 20℃; | A 72% B n/a |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Metallation; Stage #2: With copper dichloride In tetrahydrofuran; hexane at -78 - 20℃; Elimination; Substitution; | A 15% B 61% |
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: With copper dichloride In tetrahydrofuran; hexane at -78℃; | A 15% B 61% |
2,2’,6,6’-tetrabromobiphenyl
10-((2-methoxyethoxy)methyl)-9(10H)-acridinone
9,9'-(6,6'-dibromo-2,2'-biphenyldiyl)diacridine
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: 10-((2-methoxyethoxy)methyl)-9(10H)-acridinone In tetrahydrofuran; hexane at -78 - 23℃; Stage #3: With hydrogenchloride In ethanol; water at 23℃; for 3h; | 71% |
xanth-9-one
2,2’,6,6’-tetrabromobiphenyl
6,6'-dibromo-2,2'-bis(9-hydroxyxanthen-9-yl)biphenyl
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; | 68% |
2,2’,6,6’-tetrabromobiphenyl
chloro-diphenylphosphine
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-1,2-diphenyl-1,2-dimethoxyethane In hexane; toluene at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: chloro-diphenylphosphine In tetrahydrofuran; hexane; toluene at -78 - 20℃; for 12h; Schlenk technique; Inert atmosphere; Overall yield = 80 %; Overall yield = 545 mg; | A n/a B 61% |
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 60% |
Conditions | Yield |
---|---|
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h; | 60% |
2,2’,6,6’-tetrabromobiphenyl
N,N-dimethyl-formamide
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With (S,S)-1,2-di(3H-dinaphtho[2,1-c:1',2'-e]azepin-4(5H)-yl)ethane; sec.-butyllithium In hexane; cyclohexane; toluene at -78℃; for 1.5h; Inert atmosphere; Schlenk technique; Stage #2: N,N-dimethyl-formamide In hexane; cyclohexane; toluene at -78℃; Reagent/catalyst; Inert atmosphere; Schlenk technique; enantioselective reaction; | 50% |
2,2’,6,6’-tetrabromobiphenyl
chlorodicyclohexylphosphane
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-1,2-diphenyl-1,2-dimethoxyethane In hexane; toluene at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: chlorodicyclohexylphosphane In tetrahydrofuran; hexane; toluene at -78 - 20℃; for 12h; Schlenk technique; Inert atmosphere; Overall yield = 92 %; Overall yield = 650 mg; | A n/a B 46% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); zinc(II) chloride In tetrahydrofuran at -80 - 20℃; Negishi coupling reaction; | 42% |
2,2’,6,6’-tetrabromobiphenyl
1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane
A
C24H16P2
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl; 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane With 1,1'-azobis(1-cyanocyclohexanenitrile) In 4-methyl-1,2,3-trifluorobenzene at 125℃; for 45h; Inert atmosphere; Stage #2: With dihydrogen peroxide In dichloromethane; water; 4-methyl-1,2,3-trifluorobenzene at 20℃; for 1h; Inert atmosphere; | A 41% B n/a |
2,2’,6,6’-tetrabromobiphenyl
phenyldiiodoarsine
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: phenyldiiodoarsine In tetrahydrofuran; hexane at 20℃; for 14h; Inert atmosphere; | 40% |
1,4-dibromo-butane
2,2’,6,6’-tetrabromobiphenyl
Conditions | Yield |
---|---|
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-1,2-diphenyl-1,2-dimethoxyethane In hexane; toluene at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: 1,4-dibromo-butane With N,N,N,N,-tetramethylethylenediamine In tetrahydrofuran; hexane; toluene at -78 - 20℃; for 72h; Schlenk technique; Inert atmosphere; Overall yield = 51 %; Overall yield = 395 mg; | A 27% B n/a |
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