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
Cas:26021-57-8
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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
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inquiry1. 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:26021-57-8
Min.Order:1 Gram
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inquiryTIANFUCHEM--26021-57-8--3,4-dihydro-2H-1,4-benzoxazin-6-ol in stock Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable bus
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inquiryOur advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
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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
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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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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:26021-57-8
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inquiryR & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
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inquiryhigh purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
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inquiryJinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands
Cas:26021-57-8
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiryAcmec 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
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inquiryhigh 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
factory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents
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Type:Lab/Research institutions
inquiry2H-1,4-Benzoxazin-6-ol, 3,4-dihydro- cas 26021-57-8Appearance: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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inquirygood quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:100mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any po
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Type:Trading Company
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
bulk?production Application:Pharmaceutical intermediates
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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
Cas:26021-57-8
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Type:Trading Company
inquiryOur 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:26021-57-8
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiry
Cas:26021-57-8
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
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) Reasonable & Compet
Cas:26021-57-8
Min.Order:10 Metric Ton
FOB Price: $18.0
Type:Trading Company
inquiryStrong R&D strength and team We have a R&D team with around 30 R&D personnel.All of our employees have chemical backgrounds and have worked in the chemical industry for many years.Our laboratory can synthesize target products with wei
Cas:26021-57-8
Min.Order:1 Kilogram
FOB Price: $1.0 / 9999.0
Type:Other
inquiryChangsha EASCHEM is a leading company in marketing ang distributing chemicals and new materials with establishment in 2013 by reregistering from Easchem International from China. We, EASCHEM, are the brand with the aim for erecting up Big Chemica
Cas:26021-57-8
Min.Order:0 Gram
FOB Price: $12.0 / 50.0
Type:Lab/Research institutions
inquiryCerametek Materials (CMT) is your industrial and R&D supplier: 1. Semiconductor materials: Compounds of II, III, IV, V, VI groups such as Metal Sulfides, Selenides, Tellurides, Arsenide, Antimonide, Phosphide... 2. Advanced ceramic and crys
Appearance:Off-white to gray crystalline powder Storage:20℃ Package:Drum Application:API intermediates Transportation:By sea or by air Port:Qingdao
Cas:26021-57-8
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Type:Manufacturers
inquiryAopharm is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in modes of
Cas:26021-57-8
Min.Order:0 Metric Ton
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Type:Trading Company
inquiry6-Hydroxy Benzomorpholine supplierAppearance:Light yellow oil liquid Storage:Keep away of light,cool place Package:25kg/drum;200kg/drum Application:Pharma Intermediate Transportation:Sea/air/courier
At Capot,We can synthesize and purify your complex molecules from 100 gram to 10 tons.Appearance:Clear colorless to light yellow liquid Storage:Dry,Seal and Cool place Package:1G,5G,10G,25G,100G,250G,500G,1KG,5KG,10KG,25KG,50KG,100KG,150KG,200KG. App
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Type:Lab/Research institutions
inquiry6-hydroxy-3,4-dihydro-2H-1,4-benzoxazin-3-one
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
With borane-THF In tetrahydrofuran at 0 - 20℃; | 100% |
With borane-THF In tetrahydrofuran at 5 - 20℃; for 24.5h; Inert atmosphere; | 95% |
With borane-THF In tetrahydrofuran at 0 - 20℃; for 24.5h; Inert atmosphere; | 95% |
2-((2,5-dimethoxyphenyl)amino)ethane-1-ol
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
With SO42-/ZrO2-MnO2 In water at 110℃; for 4h; Reagent/catalyst; | 79.8% |
With hydrogen bromide for 2h; cyclocondensation; demethylation; Heating; | 76% |
6-methoxy-3,4-dihydro-2H-benzo[1,4]oxazine
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
With boron tribromide In dichloromethane at -78 - 20℃; for 2h; Inert atmosphere; | 69% |
2,5-dimethoxyaniline
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 41 percent / CaCO3 / H2O / 4 h / Heating 2: 76 percent / 62 percent HBr / 2 h / Heating View Scheme |
2-amino-4-methoxyphenol
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium carbonate / acetonitrile / 10 h / 80 °C / Inert atmosphere 2: lithium aluminium tetrahydride / tetrahydrofuran / 16 h / 0 - 20 °C / Inert atmosphere 3: boron tribromide / dichloromethane / 2 h / -78 - 20 °C / Inert atmosphere View Scheme |
6-methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: lithium aluminium tetrahydride / tetrahydrofuran / 16 h / 0 - 20 °C / Inert atmosphere 2: boron tribromide / dichloromethane / 2 h / -78 - 20 °C / Inert atmosphere View Scheme |
4-methoxy-2-nitrophenol
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: ammonium chloride; iron / tetrahydrofuran; methanol; water / 4 h / 80 °C / Inert atmosphere 2: potassium carbonate / acetonitrile / 10 h / 80 °C / Inert atmosphere 3: lithium aluminium tetrahydride / tetrahydrofuran / 16 h / 0 - 20 °C / Inert atmosphere 4: boron tribromide / dichloromethane / 2 h / -78 - 20 °C / Inert atmosphere View Scheme |
2-chloro-N-(2',5'-dimethoxyphenyl)acetamide
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: boron tribromide / dichloromethane / 20 °C / Inert atmosphere; Cooling with ice 2: sodium hydride / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 3: borane-THF / tetrahydrofuran / 24.5 h / 5 - 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1: boron tribromide / dichloromethane / 0 - 20 °C / Inert atmosphere 2: sodium hydride / tetrahydrofuran; mineral oil / 0 - 20 °C / Inert atmosphere 3: borane-THF / tetrahydrofuran / 24.5 h / 0 - 20 °C / Inert atmosphere View Scheme |
2,5-dimethoxyaniline
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: triethylamine / acetonitrile / 1 h / Inert atmosphere; Cooling with ice 2: boron tribromide / dichloromethane / 20 °C / Inert atmosphere; Cooling with ice 3: sodium hydride / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 4: borane-THF / tetrahydrofuran / 24.5 h / 5 - 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 4 steps 1: 1 h / 0 °C / Inert atmosphere 2: boron tribromide / dichloromethane / 0 - 20 °C / Inert atmosphere 3: sodium hydride / tetrahydrofuran; mineral oil / 0 - 20 °C / Inert atmosphere 4: borane-THF / tetrahydrofuran / 24.5 h / 0 - 20 °C / Inert atmosphere View Scheme |
2-chloro-N-(2,5-dihydroxyphenyl)acetamide
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium hydride / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 2: borane-THF / tetrahydrofuran / 24.5 h / 5 - 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: sodium hydride / tetrahydrofuran; mineral oil / 0 - 20 °C / Inert atmosphere 2: borane-THF / tetrahydrofuran / 24.5 h / 0 - 20 °C / Inert atmosphere View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
acetic anhydride
1-(6-hydroxy-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)ethan-1-one
Conditions | Yield |
---|---|
In water at 20℃; Sonication; Heating; | 95% |
In water at 20 - 50℃; Sonication; | 95% |
In water for 0.25h; Acetylation; Heating; | 65% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
tert-butyldimethylsilyl chloride
6-(tert-butyl-dimethyl-silanyloxy)-3,4-dihydro-2H-benzo[1,4]oxazine
Conditions | Yield |
---|---|
Stage #1: 3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.333333h; Inert atmosphere; Stage #2: tert-butyldimethylsilyl chloride In tetrahydrofuran; mineral oil for 1h; Time; | 94% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
4-nitrobenzenediazonium tetrafluoroborate
Conditions | Yield |
---|---|
Stage #1: 3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine With hydrogenchloride In methanol; water for 0.25h; Cooling with ice; Stage #2: 4-nitrobenzenediazonium tetrafluoroborate In methanol; water at 0℃; for 1.25h; | 87% |
Stage #1: 3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine With hydrogenchloride In methanol; water at 0℃; for 0.25h; Stage #2: 4-nitrobenzenediazonium tetrafluoroborate In methanol; water at 0℃; for 1.25h; | 87% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
propionic acid anhydride
1-(6-hydroxy-2,3-dihydro-benzo[1,4]oxazin-4-yl)-propan-1-one
Conditions | Yield |
---|---|
In water for 0.25h; Acylation; Heating; | 84% |
butanoic acid anhydride
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
1-(6-hydroxy-2,3-dihydro-benzo[1,4]oxazin-4-yl)-butan-1-one
Conditions | Yield |
---|---|
In water for 0.25h; Acylation; Heating; | 79% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
benzoic acid anhydride
4-benzoyl-6-hydroxy-3,4-dihydro-2H-1,4-benzoxazine
Conditions | Yield |
---|---|
In ethyl acetate for 1h; Acylation; Heating; | 61% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Chloroacetic anhydride
4-chloroacetyl-6-hydroxy-3,4-dihydro-2H-1,4-benzoxazine
Conditions | Yield |
---|---|
In ethyl acetate Acylation; Heating; | 57% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
With perchloric acid In water; isopropyl alcohol at 80℃; | 55% |
With perchloric acid In water; isopropyl alcohol at 80℃; | 55% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
5-ethylamino-4-methyl-2-nitrosophenol hydrochloride
Conditions | Yield |
---|---|
With perchloric acid In water; isopropyl alcohol at 80℃; | 44% |
With perchloric acid In water; isopropyl alcohol at 80℃; | 44% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
ethyl bromide
4-ethyl-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-ol
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 55℃; for 18h; | 38% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
With perchloric acid In water; isopropyl alcohol at 80℃; | 32% |
With perchloric acid In water; isopropyl alcohol at 80℃; | 32% |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
1-(6-oxiranylmethoxy-2,3-dihydro-benzo[1,4]oxazin-4-yl)-ethanone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 65 percent / H2O / 0.25 h / Heating 2: 59 percent / K2CO3 / 3 h / 90 - 95 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 65 percent / H2O / 0.25 h / Heating 2: 59 percent / K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating 4: aq. KOH / methanol / 3 h / 65 - 70 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
1-(6-oxiranylmethoxy-2,3-dihydro-benzo[1,4]oxazin-4-yl)-propan-1-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84 percent / H2O / 0.25 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
4-diethylaminoacetyl-6-hydroxy-3,4-dihydro-2H-1,4-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 57 percent / ethyl acetate / Heating 2: 63 percent / ethanol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 65 percent / H2O / 0.25 h / Heating 2: 59 percent / K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating 4: aq. KOH / methanol / 3 h / 65 - 70 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
1-(6-oxiranylmethoxy-2,3-dihydro-benzo[1,4]oxazin-4-yl)-butan-1-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 79 percent / H2O / 0.25 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
1-[6-(2-hydroxy-3-isopropylamino-propoxy)-2,3-dihydro-benzo[1,4]oxazin-4-yl]-ethanone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 65 percent / H2O / 0.25 h / Heating 2: 59 percent / K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 61 percent / ethyl acetate / 1 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
4-acetyl-6-(3-tert-butylamino-2-hydroxy-propoxy)-3,4-dihydro-2H-1,4-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 65 percent / H2O / 0.25 h / Heating 2: 59 percent / K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
2-diethylamino-1-(6-oxiranylmethoxy-2,3-dihydro-benzo[1,4]oxazin-4-yl)-ethanone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 57 percent / ethyl acetate / Heating 2: 63 percent / ethanol / 3 h / Heating 3: K2CO3 / 3 h / 90 - 95 °C View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 84 percent / H2O / 0.25 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 84 percent / H2O / 0.25 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 79 percent / H2O / 0.25 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 79 percent / H2O / 0.25 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 61 percent / ethyl acetate / 1 h / Heating 2: K2CO3 / 3 h / 90 - 95 °C 3: propan-2-ol / 3 h / Heating View Scheme |
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