As 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
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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
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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
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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. 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
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inquiryOur Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
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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
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inquiryChemlyte Solutions believe that customers and suppliers deserve much more than what traditional distributors can offer. To grow in today s fast-paced and increasingly competitive market it is essential to be able to quickly adapt to market forces eff
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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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inquiryEthanone,2-bromo-1-(3-hydroxyphenyl)- 2-bromo-1-(3-hydroxyphenyl)ethanone CAS No.: 2491-37-4 Synonyms: 2-Bromo-3‘-hydroxyacetophenone; 2-Bromo-3'-hydroxyacetophenone; 3-Hydroxyphenacyl bromide; 2-Bromo-3′-hydroxyacetophen
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Min.Order:1 Kilogram
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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,
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inquiryHangzhou 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
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inquiryLIDE PHARMACEUTICALS LIMITED is a professional leading manufacturer of chemicals and APIs in China. Our core business line covers APIs, Intermediates, Flavours and fragrances, Specialty chemicals, Dietary additives etc.We are specialized in chemical
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inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
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inquiryhigh 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
R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier
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inquiryHunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:25kg,50kg,180kg,200kg,250kg,1000kg,customization Application:Pharma;Industry;Agricultural;chemical reaserch Tran
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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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inquiryWe 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:Chemical intermediate
Cas:2491-37-4
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inquiryEthanone,2-bromo-1-(3-hydroxyphenyl)- cas 2491-37-4Appearance: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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inquiryQuality assurance, stable process and affordable priceAppearance:detailed see specifications Storage:enquiry Package:according to the clients requirement Application:Pharmaceutical intermediates Transportation:Normal Port:chengdu
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inquirystock,low price,high quality,high purity,good sevice Application:R&D
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inquirybulk?production Application:Pharmaceutical intermediates
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inquiryKnown 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
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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
Best Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP
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:2491-37-4
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inquiryConditions | Yield |
---|---|
With aluminium trichloride; Montmorillonite K10; bromine In ethyl acetate at 20℃; for 2h; | 89% |
With copper(I) bromide In chloroform; ethyl acetate for 0.333333h; Sonication; | 80% |
With dioxane dibromide In 1,4-dioxane; tert-butyl methyl ether | 63% |
3-(bromoethynyl)phenol
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
With cerium(IV) sulphate; sulfuric acid; water In dichloromethane at 80℃; for 12h; Sealed tube; regioselective reaction; | 89% |
With indium(III) triflate; water In acetic acid at 100℃; Sealed tube; | 82% |
3-(t-butoxy)acetophenone
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
With bromine In chloroform | 81% |
Conditions | Yield |
---|---|
Stage #1: 2-bromo-3'-methoxyacetophenone With boron tribromide In dichloromethane at -10℃; for 1.5h; Stage #2: With water In dichloromethane at 0℃; | 24% |
With boron tribromide In dichloromethane | 1.3 g (69%) |
With boron tribromide In dichloromethane | 1.3 g (69%) |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: bromine; aluminum (III) chloride / diethyl ether / -10 °C 2: sodium hydrogencarbonate / methanol View Scheme |
2-bromo-3-acetyloxylacetophenone
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol |
1-(tert-butoxycarbonyl)-L-proline
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 5h; | 91% |
With N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 5h; | 91% |
With N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 5h; | 91% |
Conditions | Yield |
---|---|
In ethanol at 80℃; for 2h; Sealed tube; | 91% |
2-bromo-1-(3-hydroxyphenyl)ethanone
5-(4-chlorophenyl)-1,3,4-oxadiazole-2-thiol
Conditions | Yield |
---|---|
Stage #1: 5-(4-chlorophenyl)-1,3,4-oxadiazole-2-thiol With triethylamine In ethanol for 0.25h; Stage #2: 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol for 3h; Reflux; | 89% |
Conditions | Yield |
---|---|
Stage #1: 2-Mercapto-5-phenyl-1,3,4-oxadiazole With triethylamine In ethanol for 0.25h; Stage #2: 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol for 3h; Reflux; | 89% |
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
With triethylamine In ethanol for 3h; Hantzsch Thiazole Synthesis; Reflux; | 89% |
2-bromo-1-(3-hydroxyphenyl)ethanone
2-(1-(pyridin-4-yl)ethylidene)hydrazinecarbothioamide
Conditions | Yield |
---|---|
With triethylamine In ethanol for 3h; Hantzsch Thiazole Synthesis; Reflux; | 89% |
2-bromo-1-(3-hydroxyphenyl)ethanone
2-[1-(pyridine-3-yl)ethylidene]hydrazinecarbothioamide
Conditions | Yield |
---|---|
With triethylamine In ethanol for 3h; Hantzsch Thiazole Synthesis; Reflux; | 89% |
Conditions | Yield |
---|---|
With triethylamine In ethanol for 3h; Hantzsch Thiazole Synthesis; Reflux; | 89% |
Conditions | Yield |
---|---|
Stage #1: 5-(3-pyridinyl)-1,3,4-oxadiazol-2-thiol With triethylamine In ethanol for 0.25h; Stage #2: 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol for 3h; Reflux; | 88% |
5-(4-benzyloxy-phenyl)-[1,3,4]oxadiazole-2-thiol
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
Stage #1: 5-(4-benzyloxy-phenyl)-[1,3,4]oxadiazole-2-thiol With triethylamine In ethanol for 0.25h; Stage #2: 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol for 3h; Reflux; | 87% |
Conditions | Yield |
---|---|
Stage #1: 2,5-Dimercapto-1,3,4-thiadiazole With triethylamine In ethanol for 0.25h; Stage #2: 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol for 3h; Reflux; | 87% |
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
In ethanol for 4h; Hantzsch Thiazole Synthesis; Reflux; | 86% |
Conditions | Yield |
---|---|
In ethanol for 2h; Reflux; Inert atmosphere; | 85% |
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
for 12h; Reflux; | 85% |
Conditions | Yield |
---|---|
Stage #1: pyridine-2-carbothioamide; 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol at 20℃; for 0.5h; Stage #2: In ethanol for 1h; Reflux; | 82% |
2-bromo-1-(3-hydroxyphenyl)ethanone
allyl bromide
3-(1-bromo-2-hydroxypent-4-en-2-yl)phenol
Conditions | Yield |
---|---|
With indium In tetrahydrofuran; water at 20℃; | 81% |
Conditions | Yield |
---|---|
Stage #1: 2-bromo-1-(3-hydroxyphenyl)ethanone; pyridine-4-carbothioamide In ethanol at 20℃; for 0.5h; Stage #2: In ethanol for 1h; Reflux; | 80% |
Conditions | Yield |
---|---|
In ethanol at 20 - 78℃; | 80% |
2-bromo-1-(3-hydroxyphenyl)ethanone
5-bromo-2-amino-1,3,4-thiadiazole
3-(2-bromoimidazo[2,1-b][1,3,4]thiadiazol-6-yl)phenol
Conditions | Yield |
---|---|
In ethanol for 12h; Reflux; | 78% |
Conditions | Yield |
---|---|
Stage #1: thionicotinamide; 2-bromo-1-(3-hydroxyphenyl)ethanone In ethanol at 20℃; for 0.5h; Stage #2: In ethanol for 1h; Reflux; | 78% |
2-bromo-1-(3-hydroxyphenyl)ethanone
pyrrolidinodithiocarboxylic acid, pyrrolidinium salt
Conditions | Yield |
---|---|
In water; acetone for 0.166667h; Heating; | 76% |
2-bromo-1-(3-hydroxyphenyl)ethanone
3-methyl-8-bromoxanthine
8-bromo-3,7-dihydro-7-[2-(3-hydroxyphenyl)-2-oxoethyl]-3-methyl-1H-purine-2,6-dione
Conditions | Yield |
---|---|
Stage #1: 3-methyl-8-bromoxanthine With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 25℃; for 0.0833333h; Inert atmosphere; Stage #2: 2-bromo-1-(3-hydroxyphenyl)ethanone In N,N-dimethyl-formamide at 25℃; Inert atmosphere; | 75% |
(Z)-2-(2-oxoindolin-3-ylidene)-hydrazinecarbothioamide
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
In ethanol for 4h; Hantzsch Thiazole Synthesis; Reflux; | 75% |
2-amino-benzthiazole
2-bromo-1-(3-hydroxyphenyl)ethanone
2-(m-hydroxyphenyl)imidazo<2,1-b>benzothiazole
Conditions | Yield |
---|---|
In isopropyl alcohol for 2h; Heating; | 70% |
2,5-dihydro-3H-1,2,4-triazino[5,6-b]indole-3-thione
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
With triethylamine In ethanol for 3h; Reflux; | 70% |
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
In ethanol Hantzsch Thiazole Synthesis; Reflux; | 69% |
t-butyl 3-amino-2-(N-benzoylthiocarbamoyl)crotonate
2-bromo-1-(3-hydroxyphenyl)ethanone
Conditions | Yield |
---|---|
65% |
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