Puyang Huicheng Electronic Material Co., Ltd was founded in 2002, which is focus on high complex new type intermediates and fine chemical custom synthesis, LED&OLED materials and related intermediates, catalyst design and synthesis.
Cas:28320-32-3
Min.Order:100 Gram
Negotiable
Type:Manufacturers
inquiryAs a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:28320-32-3
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:28320-32-3
Min.Order:1 Kilogram
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Type:Manufacturers
inquiryProduct description: Product name 2,7-Dibromo-9,9-dimethylfluorene CAS number 28320-32-3 Assay ≥99% Appearance White powder Capacity 100mt/year Application OLED intermediate
Cas:28320-32-3
Min.Order:100 Gram
FOB Price: $12.0
Type:Lab/Research institutions
inquiryLocated in Zhengdong New District, Zhengzhou of Henan province, Henan Allgreen Chemical Co.,Ltd is comprehensive high-tech modern enterprises integrating professional R&D, production and sales. Strong technical force, with a long-term profes
Cas:28320-32-3
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryISO9001 Exporting Japan, Korea regularly. Appearance:white powder Storage:store in dry and cool place Package:25kg/ fibre drum Application:OLED intermediates Transportation:-- Port:Chinese port
1. 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:28320-32-3
Min.Order:1 Gram
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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:28320-32-3
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquirychengdu and import and export trade co., LTD., who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do res
Cas:28320-32-3
Min.Order:5 Metric Ton
FOB Price: $1100.0 / 1500.0
Type:Trading Company
inquiryAbout Product Technical Details 2,7-Dibromo-9,9-dimethylfluo
Cas:28320-32-3
Min.Order:1 Kilogram
FOB Price: $1.0 / 3.0
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
Cas:28320-32-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be
Cas:28320-32-3
Min.Order:1 Kilogram
FOB Price: $250.0 / 280.0
Type:Trading Company
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:28320-32-3
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryName: 2,7-Dibromo-9,9'-Dimethylfluorene Synonyms: 2,7-Dibromo-9,9-dimethyl-9H-fluorene CAS:28320-32-3 MF: C15H12Br2 Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg Application:OLED organic electro
Cas:28320-32-3
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Other
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:28320-32-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry2,7-Dibromo-9,9-dimethylfluorene CAS:28320-32-3 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
Cas:28320-32-3
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:28320-32-3
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:28320-32-3
Min.Order:0
Negotiable
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:28320-32-3
Min.Order:0 Metric Ton
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Type:Lab/Research institutions
inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:28320-32-3
Min.Order:4 Kilogram
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:28320-32-3
Min.Order:0 Metric Ton
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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:28320-32-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySourcing Leveraging our vast network of suppliers and local industry expertise we can source quality industrial and speciality chemicals, supporting you through the entire sales cycle to ensure you receive the perfect Chemlyte solution. Market
Cas:28320-32-3
Min.Order:100 Gram
Negotiable
Type:Other
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:28320-32-3
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:28320-32-3
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,
Cas:28320-32-3
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryProduct Name: 2,7-Dibromo-9,9-dimethylfluorene Synonyms: 9,9-Dimethyl-2,7-dibromofluorenone;2,7-Dibromo-9,9-dimethyl-fluororene;2,7-Dibromo-9,9-dimethylfluorene;9H-Fluorene,2,7-dibromo-9,9-dimethyl-;9,9-Dimethyl-2,7-Dibromofluorene;2,7-Dibromo-9,9-di
Cas:28320-32-3
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:28320-32-3
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:28320-32-3
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry2,7-dibromo-9H-fluorene
methyl iodide
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; sodium hydroxide In dimethyl sulfoxide for 5h; Sonication; | 99% |
With tetrabutylammomium bromide; sodium hydroxide In dimethyl sulfoxide at 20℃; for 5h; Sonication; | 99% |
With tetrabutylammomium bromide; sodium hydroxide In dimethyl sulfoxide for 5h; Sonication; | 99% |
2,7-dibromo-9H-fluorene
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; sodium hydroxide In dimethyl sulfoxide at 20℃; for 5h; | 99% |
9,9-dimethyl-9H-fluorene
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With bromine In chloroform for 4h; Cooling with ice; | 76% |
With bromine |
methyl iodide
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9H-fluorene With potassium tert-butylate In dimethyl sulfoxide at 5℃; Stage #2: methyl iodide In dimethyl sulfoxide at 5℃; |
2,7-dibromo-9,9-dimethyl-9H-fluorene
3,5-bis-trifluromethylphenylboronic acid
Conditions | Yield |
---|---|
With potassium carbonate In ethanol; water at 80℃; for 1.5h; Suzuki Coupling; | 98% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
trimethyltin(IV)chloride
2,7-bis(trimethylstannyl)-9,9-dimethylfluorene
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -70℃; for 1.25h; Stage #2: trimethyltin(IV)chloride In tetrahydrofuran; hexane at -78 - 20℃; for 6.08333h; | 97% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
dimesitylfluoroborane
(7-bromo-9,9-dimethyl-9H-fluoren-2-yl)dimesitylborane
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 2h; Inert atmosphere; Stage #2: dimesitylfluoroborane In tetrahydrofuran at -78 - 20℃; Inert atmosphere; | 94% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Stage #2: dimesitylfluoroborane In tetrahydrofuran; hexane at 20℃; for 6h; | 80% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: dimesitylfluoroborane In tetrahydrofuran; hexane for 12h; | 63% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran Stage #2: dimesitylfluoroborane |
4-trifluoromethylphenylamine
2,7-dibromo-9,9-dimethyl-9H-fluorene
C22H17BrF3N
Conditions | Yield |
---|---|
With sodium t-butanolate; C30H48FeP2; palladium dichloride In 1,4-dioxane for 3h; Heating / reflux; | 92% |
With sodium t-butanolate; C30H48FeP2; palladium dichloride In 1,4-dioxane for 3h; Heating / reflux; | 92 %Chromat. |
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2,7-dibromo-9,9-dimethyl-9H-fluorene
4,4,5,5-tetramethyl-2-[7-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-9,9-dimethyl-9H-fluoren-2-yl]-[1,3,2]dioxaborolane
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 0.5h; Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane at 20℃; for 2h; | 90% |
With n-butyllithium In diethyl ether at -78 - 20℃; for 14h; Inert atmosphere; | 60.5% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78 - 0℃; Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran at 20℃; | 33% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 2h; Inert atmosphere; Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran for 25h; |
2,7-dibromo-9,9-dimethyl-9H-fluorene
N,N-dimethyl-formamide
7-bromo-9,9-dimethyl-9H-fluorene-2-carbaldehyde
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran at 20℃; for 2h; | 90% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran at -78 - 20℃; | 90% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Schlenk technique; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane at -78 - 25℃; for 10h; Inert atmosphere; Schlenk technique; | 90% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
7-bromo-9,9-dimethyl-9H-fluorene-2-carbaldehyde
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Schlenk technique; Stage #2: With N,N-dimethyl-formamide In tetrahydrofuran at -78 - 25℃; for 10h; Inert atmosphere; Schlenk technique; | 90% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With water-d2; potassium carbonate; silver carbonate; cyclohexyldiphenylphosphine In toluene at 120℃; for 12h; | 90% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
1-pyrenylboronic acid
Conditions | Yield |
---|---|
With sodium carbonate; tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene at 20 - 77℃; for 5.5h; Suzuki Coupling; | 89% |
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In ethanol; water; toluene for 4h; Suzuki Coupling; Reflux; | 73% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
N-methylaniline
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With palladium diacetate; johnphos; sodium t-butanolate In toluene at 20℃; for 0.75h; Buchwald-Hartwig Coupling; Inert atmosphere; Schlenk technique; Stage #2: N-methylaniline In toluene at 180℃; for 1h; Reagent/catalyst; Buchwald-Hartwig Coupling; Inert atmosphere; Schlenk technique; Microwave irradiation; | 89% |
((10-(naphthalen-1-yl)anthracen-9-yl)boronic acid)
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In ethanol; water; toluene for 4h; Suzuki Coupling; Reflux; | 86% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
N-methylaniline
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With palladium diacetate; (S)-(1,1'-binaphthalene)-2,2'-diylbis(diphenylphosphine); sodium t-butanolate In toluene at 20℃; for 0.5h; Buchwald-Hartwig Coupling; Inert atmosphere; Schlenk technique; Stage #2: N-methylaniline In toluene at 180℃; for 0.75h; Reagent/catalyst; Solvent; Buchwald-Hartwig Coupling; Microwave irradiation; Schlenk technique; Inert atmosphere; | 86% |
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene; aniline In benzene at 50℃; for 0.333333h; Inert atmosphere; Stage #2: With tris-(dibenzylideneacetone)dipalladium(0); tri-tert-butyl phosphine; sodium t-butanolate In benzene Reflux; Inert atmosphere; | 85.63% |
With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In toluene for 12h; Inert atmosphere; | |
With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In toluene for 12h; Inert atmosphere; |
2,7-dibromo-9,9-dimethyl-9H-fluorene
1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrene
1-(7-bromo-9,9-dimethyl-9H-fluoren-2-yl)pyrene
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; toluene for 12h; Inert atmosphere; Reflux; | 85% |
Conditions | Yield |
---|---|
With tri-tert-butyl phosphine; potassium tert-butylate; palladium diacetate In toluene at 82℃; for 11h; | 85% |
Conditions | Yield |
---|---|
With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In toluene for 2h; Inert atmosphere; Reflux; | 85% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
9,9-dimethyl-9H-fluoren-2-yl-2-boronic acid
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In tetrahydrofuran; water for 14h; Reflux; Inert atmosphere; Schlenk technique; | 84% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
bis(pinacol)diborane
4,4,5,5-tetramethyl-2-[7-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-9,9-dimethyl-9H-fluoren-2-yl]-[1,3,2]dioxaborolane
Conditions | Yield |
---|---|
With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate In 1,4-dioxane for 4h; Inert atmosphere; Heating; | 83% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate at 90℃; for 48h; Inert atmosphere; | 78% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate at 90℃; for 48h; | 78% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
diphenylamine
2-bromo-7-N,N’-diphenylamino-9,9’-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With 1,1'-bis-(diphenylphosphino)ferrocene; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate In toluene at 80℃; for 2h; Schlenk technique; | 83% |
With 18-crown-6 ether; copper; potassium carbonate; potassium iodide In 1,2-dichloro-benzene at 200℃; for 24h; Inert atmosphere; | 79% |
With 18-crown-6 ether; copper; potassium carbonate In 1,2-dichloro-benzene at 20 - 200℃; for 24h; Inert atmosphere; | 79% |
pyrrolidine
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With palladium diacetate; (S)-(1,1'-binaphthalene)-2,2'-diylbis(diphenylphosphine); sodium t-butanolate In toluene at 20℃; for 0.5h; Buchwald-Hartwig Coupling; Inert atmosphere; Schlenk technique; Stage #2: pyrrolidine In toluene at 180℃; for 0.75h; Buchwald-Hartwig Coupling; Microwave irradiation; Schlenk technique; Inert atmosphere; | 83% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
phenylboronic acid
9,9-dimethyl-2,7-diphenyl-9H-fluorene
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); tetrabutylammomium bromide; potassium carbonate In water; toluene at 90℃; Inert atmosphere; Schlenk technique; | 82.6% |
With potassium carbonate In ethanol; water; toluene at 120℃; for 3h; Inert atmosphere; | |
With potassium carbonate; tetrabutylammomium bromide; palladium diacetate In water at 70℃; for 24h; | |
Suzuki Coupling; |
styrene
2,7-dibromo-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With bis(tri-t-butylphosphine)palladium(0); N-Methyldicyclohexylamine; tetrabutylammomium bromide In toluene at 80℃; Inert atmosphere; Schlenk technique; | 82.5% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
N,N-dimethyl-formamide
9,9-dimethyl-9H-fluorene-2,7-dicarbaldehyde
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Schlenk technique; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; N,N-dimethyl-formamide at -78 - 25℃; for 10h; Inert atmosphere; Schlenk technique; | 82% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With magnesium In tetrahydrofuran for 16h; Grignard reaction; Reflux; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran at 20℃; for 5h; Cooling with ice; | 66% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran at 20℃; for 3h; | 62% |
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran for 12h; | 60% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
aniline
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With palladium diacetate; (S)-(1,1'-binaphthalene)-2,2'-diylbis(diphenylphosphine); sodium t-butanolate In toluene at 20℃; for 0.5h; Buchwald-Hartwig Coupling; Inert atmosphere; Schlenk technique; Stage #2: aniline In toluene at 180℃; for 0.75h; Buchwald-Hartwig Coupling; Microwave irradiation; Schlenk technique; Inert atmosphere; | 82% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
9,9-dimethyl-9H-fluorene-2,7-dicarbaldehyde
Conditions | Yield |
---|---|
Stage #1: 2,7-dibromo-9,9-dimethyl-9H-fluorene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Schlenk technique; Stage #2: With N,N-dimethyl-formamide In tetrahydrofuran at -78 - 25℃; for 10h; Inert atmosphere; Schlenk technique; | 82% |
2,7-dibromo-9,9-dimethyl-9H-fluorene
2,7-di(p-tolylthio)-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With palladium diacetate; N-ethyl-N,N-diisopropylamine; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In N,N-dimethyl-formamide at 100℃; for 4h; Inert atmosphere; | 81% |
1H-imidazole
2,7-dibromo-9,9-dimethyl-9H-fluorene
2,7-bis(1H-imidazol-1-yl)-9,9-dimethyl-9H-fluorene
Conditions | Yield |
---|---|
With copper(l) iodide; caesium carbonate In N,N-dimethyl-formamide at 120℃; for 8h; Inert atmosphere; | 81% |
With copper(l) iodide; caesium carbonate In N,N-dimethyl-formamide at 119.84℃; for 36h; Inert atmosphere; | 76.1% |
With copper(l) iodide; caesium carbonate In N,N-dimethyl-formamide at 120℃; for 8h; | 76% |
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