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Dayang Chem (Hangzhou) Co.,Ltd.

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

4-Bromobenzaldehyde diethyl acetal Manufacturer/High quality/Best price/In stock

Cas:34421-94-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Xi'an Xszo Chem Co., Ltd.

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

Factory Price OLED 99% 34421-94-8 4-BROMOBENZALDEHYDE DIETHYL ACETAL Manufacturer

Cas:34421-94-8

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our 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

4-Bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

Pharmaceutical Grade CAS 34421-94-8 with competitive price

Cas:34421-94-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Tianfu Chemical Co., Ltd.

Our 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

4-BROMOBENZALDEHYDE DIETHYL ACETAL

Cas:34421-94-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

4-BROMOBENZALDEHYDE DIETHYL ACETAL CAS:34421-94-8 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 qualit

4-BROMOBENZALDEHYDE DIETHYL ACETAL CAS:34421-94-8

Cas:34421-94-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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

Benzene,1-bromo-4-(diethoxymethyl)-

Cas:34421-94-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

Benzene,1-bromo-4-(diethoxymethyl)-

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Ality Chemical Corporation

The 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

Factory Supply 4-bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:0 Metric Ton

Negotiable

Type:Other

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&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

4-Bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo 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

4-bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Zibo Dorne chemical technology co. LTD

Product 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,

4-BROMOBENZALDEHYDE DIETHYL ACETAL

Cas:34421-94-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High 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

4-Bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

4-Bromobenzaldehyde diethyl acetal cas no. 34421-94-8 98%

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

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

4-bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier

4-Bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec 4-Bromobenzaldehyde Diethyl Acetal 100g

Cas:34421-94-8

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

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

4-BroMobenzaldehyde Diethyl Acetal

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

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

Benzene,1-bromo-4-(diethoxymethyl)-

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Pharm intermediate

4-BROMOBENZALDEHYDE DIETHYL ACETAL

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

4-Bromobenzaldehyde diethyl acetal cas 34421-94-8Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

4-Bromobenzaldehyde diethyl acetal cas 34421-94-8

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low priceAppearance:Clear colorless to pale yellowish liquid Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

4-Bromobenzaldehyde diethyl acetal

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

4-BROMOBENZALDEHYDE DIETHYL ACETAL

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Yuanye Bio-Technology Co., Ltd.

Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.Appearance:White powder Storage:keep sealed and keep from direct light Package:According client's requirements Application:pharmaceutica

4-Bromobenzaldehyde Diethyl Acetal manufacturer

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

4-BROMOBENZALDEHYDE DIETHYL ACETAL

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Bide Pharmatech Ltd

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-Bromo-4-(diethoxymethyl)benzene

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Other

inquiry

Amadis Chemical Co., Ltd.

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

Amadis Chemical offer CAS#34421-94-8;CAT#A6064

Cas:34421-94-8

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

HENAN SUNLAKE ENTERPRISE CORPORATION

Henan Sunlake Enterprise Corporation

4-BROMOBENZALDEHYDE DIETHYL ACETAL

Cas:34421-94-8

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Jilin haofei import and export trade Co.,Ltd

Price, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right

4-BROMOBENZALDEHYDE DIETHYL ACETAL CAS NO.34421-94-8

Cas:34421-94-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

coolpharm Ltd

Jinan YSPharma Biotechnology Co., Ltd is a large group specializing in contract manufacturing to the pharmaceutical, agrochemical and Fine chemicals with top quality products and service. We have strong research and development capacities can provi

4-BroMobenzaldehyde Diethyl Acetal

Cas:34421-94-8

Min.Order:100 Gram

FOB Price: $100.0

Type:Other

inquiry

Synthetic route

ethanol
64-17-5

ethanol

4-bromo-benzaldehyde
1122-91-4

4-bromo-benzaldehyde

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

Conditions
ConditionsYield
With Eosin Y In acetonitrile at 20℃; for 12h; Schlenk technique; Inert atmosphere; Irradiation; chemoselective reaction;99%
With CoCl2 for 1.1h; Heating;91%
With thiourea-containing isoreticular metal-organic framework-3 In neat (no solvent) at 20℃; for 12h;91%
4-bromo-benzaldehyde
1122-91-4

4-bromo-benzaldehyde

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

Conditions
ConditionsYield
With hydrogenchloride In ethanol; water for 4h; Reflux;98%
With hydrogenchloride In ethanol; water for 4h; Inert atmosphere; Schlenk technique; Reflux;98%
With hydrogenchloride In ethanol for 4h; Reflux; Inert atmosphere; Schlenk technique;98%
ethanol
64-17-5

ethanol

4-bromo-benzaldehyde
1122-91-4

4-bromo-benzaldehyde

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

Conditions
ConditionsYield
With povidone-iodine at 30℃; for 3h; Green chemistry;97.8%
(4-bromophenyl)magnesium bromide
18620-02-5

(4-bromophenyl)magnesium bromide

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

etheric 4-bromo-phenyl magnesium bromide solution

etheric 4-bromo-phenyl magnesium bromide solution

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

Conditions
ConditionsYield
With benzene
benzenesulfonamide
98-10-2

benzenesulfonamide

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

N-(phenylsulfonyl)-p-bromobenzaldehyde imine
36176-88-2

N-(phenylsulfonyl)-p-bromobenzaldehyde imine

Conditions
ConditionsYield
at 160 - 170℃; Inert atmosphere;99%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

malononitrile
109-77-3

malononitrile

4-bromobenzylidenemalononitrile
2826-24-6

4-bromobenzylidenemalononitrile

Conditions
ConditionsYield
With PS-perazine; PS-N-SO3 In ethyl acetate at 50℃; for 3h;97%
With 5,10,15,20-Tetrakis[4-(2H-tetrazol-5-yl)phenyl]porphyrin-Fe(III) catalyst (PCN-527-Fe) Knoevenagel Condensation;
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

Ethyl 4-bromobenzoate
5798-75-4

Ethyl 4-bromobenzoate

Conditions
ConditionsYield
With N-hydroxyphthalimide; oxygen; cobalt(II) acetate In acetonitrile at 20℃; under 760 Torr; for 8h;94%
Multi-step reaction with 2 steps
1.1: triethylsilyl trifluoromethyl sulfonate / tetrahydrofuran / 0.5 h / 0 °C / Inert atmosphere
2.1: sodium hexamethyldisilazane; triethylamine / tetrahydrofuran / 0.5 h / -78 °C / Inert atmosphere
2.2: 1 h
View Scheme
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

(E)-ethyl 3-(4-bromophenyl)-2-cyanoacrylate
42205-33-4

(E)-ethyl 3-(4-bromophenyl)-2-cyanoacrylate

Conditions
ConditionsYield
With PS-perazine; PS-N-SO3 In ethyl acetate at 50℃; for 3h;93%
(S)-1,1'-binaphthyl-2,2'-diyl phosphoramide

(S)-1,1'-binaphthyl-2,2'-diyl phosphoramide

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

C27H17BrNO3P

C27H17BrNO3P

Conditions
ConditionsYield
at 170℃; for 0.166667h;92%
Diisopropylsilyl dichloride
7751-38-4

Diisopropylsilyl dichloride

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-[hydroxy(diisopropyl)silyl]benzaldehyde

4-[hydroxy(diisopropyl)silyl]benzaldehyde

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With tert.-butyl lithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere;
Stage #2: Diisopropylsilyl dichloride In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; Schlenk technique;
91%
C20H14NO2PS

C20H14NO2PS

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

C27H17BrNO2PS

C27H17BrNO2PS

Conditions
ConditionsYield
at 120 - 160℃;90%
5,6‐difluoro‐2,1,3‐benzothiadiazole
1293389-28-2

5,6‐difluoro‐2,1,3‐benzothiadiazole

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4,7-bis(4-(diethoxymethyl)phenyl)-5,6-difluorobenzo[c][1,2,5]thiadiazole

4,7-bis(4-(diethoxymethyl)phenyl)-5,6-difluorobenzo[c][1,2,5]thiadiazole

Conditions
ConditionsYield
With di-tert-butyl(methyl)phosphonium tetrafluoroborate salt; palladium diacetate; potassium carbonate; Trimethylacetic acid In toluene at 120℃; Inert atmosphere; Sealed tube;89%
di-tert-butylchlorosilane
56310-18-0

di-tert-butylchlorosilane

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-[(di-tert-butyl)silyl]benzaldehyde

4-[(di-tert-butyl)silyl]benzaldehyde

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With tert.-butyl lithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere;
Stage #2: di-tert-butylchlorosilane In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; Schlenk technique;
88%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

P,P-diphenylphosphinothioic amide
17366-80-2

P,P-diphenylphosphinothioic amide

N-4-bromobenzylidene-diphenylthiophosphinamide
945492-02-4

N-4-bromobenzylidene-diphenylthiophosphinamide

Conditions
ConditionsYield
at 120 - 160℃;84%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

1-(2-methoxyphenyl)-3-(4-methoxyphenyl)prop-2-yn-1-one
767303-58-2

1-(2-methoxyphenyl)-3-(4-methoxyphenyl)prop-2-yn-1-one

3-[(4-bromophenyl)(ethoxy)methyl]-2-(4-methoxyphenyl)-4H-chromen-4-one

3-[(4-bromophenyl)(ethoxy)methyl]-2-(4-methoxyphenyl)-4H-chromen-4-one

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In acetonitrile at 20℃; for 0.00166667h; regioselective reaction;82%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

1-(4-methoxyphenyl)-2-phenylbutan-1-one
78423-10-6

1-(4-methoxyphenyl)-2-phenylbutan-1-one

1-[4-(diethoxymethyl)phenyl]-1-(4-methoxyphenyl)-2-phenylbutan-1-ol
850005-34-4

1-[4-(diethoxymethyl)phenyl]-1-(4-methoxyphenyl)-2-phenylbutan-1-ol

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With magnesium In tetrahydrofuran at 20℃; for 1.5h; Heating / reflux;
Stage #2: 1-(4-methoxyphenyl)-2-phenylbutan-1-one In tetrahydrofuran at 0 - 20℃; for 3h; Grignard Reaction;
81%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

(R)-N-methoxy-N-methyl-3-(1H-naphtho[1,8-de][1,3,2]-diazaborinin-2(3H)-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propanamide

(R)-N-methoxy-N-methyl-3-(1H-naphtho[1,8-de][1,3,2]-diazaborinin-2(3H)-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propanamide

(R)-3-(3-(diethoxymethyl)phenyl)-N-methoxy-N-methyl-3-(1Hnaphtho[1,8-de][1,3,2]diazaborinin-2(3H)-yl)propanamide

(R)-3-(3-(diethoxymethyl)phenyl)-N-methoxy-N-methyl-3-(1Hnaphtho[1,8-de][1,3,2]diazaborinin-2(3H)-yl)propanamide

Conditions
ConditionsYield
With potassium carbonate; bis(dibenzylideneacetone)-palladium(0); XPhos; phenol In toluene at 80℃; for 15h; Suzuki-Miyaura Coupling; Inert atmosphere; enantioselective reaction;81%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

trimethyltin(IV)chloride
1066-45-1

trimethyltin(IV)chloride

(4-formylphenyl)trimethylstannane
65488-26-8

(4-formylphenyl)trimethylstannane

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With n-butyllithium In diethyl ether; hexane at -78℃; for 1.5h; Inert atmosphere; Schlenk technique;
Stage #2: trimethyltin(IV)chloride In tetrahydrofuran; diethyl ether; hexane at -78 - 20℃; Inert atmosphere; Schlenk technique;
Stage #3: With potassium hydrogensulfate In tetrahydrofuran; diethyl ether; hexane; water for 4h; Inert atmosphere; Schlenk technique;
81%
4-methyl-N-phenyl-N-(3-phenylprop-2-yn-1-yl)benzenesulfonamide
1203703-02-9

4-methyl-N-phenyl-N-(3-phenylprop-2-yn-1-yl)benzenesulfonamide

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

7-(4-bromophenyl)-5-tosyl-6,7-dihydro-5H-indeno[2,1-c]quinoline

7-(4-bromophenyl)-5-tosyl-6,7-dihydro-5H-indeno[2,1-c]quinoline

Conditions
ConditionsYield
With iron(III) chloride In dichloromethane at 25℃; for 18h; Inert atmosphere;79%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

2,7-dibromo-9H-fluoren-9-ol
748187-31-7

2,7-dibromo-9H-fluoren-9-ol

methyl iodide
74-88-4

methyl iodide

C21H14Br2O2

C21H14Br2O2

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.666667h;
Stage #2: 2,7-dibromo-9H-fluoren-9-ol In tetrahydrofuran; hexane at -78℃; for 2h;
Stage #3: methyl iodide In tetrahydrofuran; hexane at -78 - 20℃; for 4h;
79%
boric acid tributyl ester
688-74-4

boric acid tributyl ester

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-formylphenylboronic acid,
87199-17-5

4-formylphenylboronic acid,

Conditions
ConditionsYield
With Mg; aq. H2SO4; KOH In tetrahydrofuran; diethyl ether byproducts: BuOH, Mg(OH)2, MgBr2; dropwise addn. of the grignard compd. of the acetal in THF to mixt. of B(OC4H9)3 in THF (under N2, -68°C, under stirring), stirred after thawing (1 h), evapn. of volatiles (20°C, 1 Torr), addn. of 1 M H2SO4 to soln. of the residue in ether; extn. with ether, evapn. of ether (vac.), addn. of KOH to aq. phase, after addn. of water azeotropic distn. of H2O/ BuOH in vac., residue acidified with 1 M H2SO4, refluxed (30 min), filtered, cooling of the filtrate, recrystn. from hot H2O; elem. anal.;78%
(Z)-3-(4-methoxyphenyl)-1-phenylprop-2-yn-1-one O-methyl oxime

(Z)-3-(4-methoxyphenyl)-1-phenylprop-2-yn-1-one O-methyl oxime

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-[(4-bromophenyl)(ethoxy)methyl]-5-(4-methoxyphenyl)-3-phenylisoxazole

4-[(4-bromophenyl)(ethoxy)methyl]-5-(4-methoxyphenyl)-3-phenylisoxazole

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In acetonitrile at 20℃; for 0.00166667h;77%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

ethyl acetoacetate
141-97-9

ethyl acetoacetate

urea
57-13-6

urea

5-(ethoxycarbonyl)-4-(4-bromophenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one
123629-43-6

5-(ethoxycarbonyl)-4-(4-bromophenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one

Conditions
ConditionsYield
With iron(III) p-toluenesulfonate hexahydrate In isopropyl alcohol at 70℃; for 15.5h; Biginelli Pyrimidone Synthesis;74%
tris(trimethylsilyl) phosphite
1795-31-9

tris(trimethylsilyl) phosphite

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

bis(trimethylsilyl) 4-bromophenyl(ethoxy)methylphosphonate

bis(trimethylsilyl) 4-bromophenyl(ethoxy)methylphosphonate

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 20℃; for 24h;74%
With trimethylsilyl trifluoromethanesulfonate In dichloromethane for 2h; Heating;74%
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 100℃; for 2h;74%
methyl 2-nitroacetate
2483-57-0

methyl 2-nitroacetate

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

A

Ethyl 4-bromobenzoate
5798-75-4

Ethyl 4-bromobenzoate

B

methyl α-nitro-β-(4-bromophenyl)acrylate
1012067-03-6

methyl α-nitro-β-(4-bromophenyl)acrylate

Conditions
ConditionsYield
With AcO2 at 130℃; for 10h;A 25%
B 73%
triethoxymethylsilane

triethoxymethylsilane

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-(diethoxymethylsilyl)benzaldehyde diethyl acetal
1193728-44-7

4-(diethoxymethylsilyl)benzaldehyde diethyl acetal

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With magnesium In tetrahydrofuran Inert atmosphere; Reflux;
Stage #2: triethoxymethylsilane In tetrahydrofuran at -30 - 20℃; Inert atmosphere;
73%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

1-(4-methoxyphenyl)-2-phenylbutan-1-one
78423-10-6

1-(4-methoxyphenyl)-2-phenylbutan-1-one

4-(1-(4-methoxyphenyl)-2-phenylbut-1-enyl)benzaldehyde

4-(1-(4-methoxyphenyl)-2-phenylbut-1-enyl)benzaldehyde

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With iodine; magnesium In tetrahydrofuran at 20 - 60℃; for 4h; Inert atmosphere;
Stage #2: 1-(4-methoxyphenyl)-2-phenylbutan-1-one In tetrahydrofuran at 20℃; for 3h; Inert atmosphere;
Stage #3: With hydrogenchloride In ethanol; water for 5h; Reflux;
73%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

ethyl vinyl ether
109-92-2

ethyl vinyl ether

1-Bromo-4-(1,3,3-triethoxy-propyl)-benzene
36382-27-1

1-Bromo-4-(1,3,3-triethoxy-propyl)-benzene

Conditions
ConditionsYield
With boron trifluoride diethyl etherate at 20 - 45℃;72%
chlorodiisopropylsilane
2227-29-4

chlorodiisopropylsilane

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-[(diisopropyl)silyl]benzaldehyde
1362019-94-0

4-[(diisopropyl)silyl]benzaldehyde

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere;
Stage #2: chlorodiisopropylsilane In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; Schlenk technique;
69%
4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

isobutyryl chloride
79-30-1

isobutyryl chloride

4-isobutyrylbenzaldehyde
97382-57-5

4-isobutyrylbenzaldehyde

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere;
Stage #2: With copper(l) cyanide; lithium chloride In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere;
Stage #3: isobutyryl chloride In tetrahydrofuran; hexane at -78 - 20℃; for 1.5h; Inert atmosphere;
67.6%
2,7-dibromofluorene-9-one
14348-75-5

2,7-dibromofluorene-9-one

4-bromobenzaldehyde diethyl acetal
34421-94-8

4-bromobenzaldehyde diethyl acetal

4-(2,7-dibromo-9-hydroxy-9H-fluoren-9-yl)benzaldehyde
1032763-84-0

4-(2,7-dibromo-9-hydroxy-9H-fluoren-9-yl)benzaldehyde

Conditions
ConditionsYield
Stage #1: 4-bromobenzaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃;
Stage #2: 2,7-dibromofluorene-9-one In tetrahydrofuran; hexane at -78 - 20℃;
Stage #3: With hydrogenchloride; water In tetrahydrofuran; hexane for 6h;
67%

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