radix scutellariae extract powder Product Name: baical skullcap root extract Botanical Name: scutellaria baicalensis Part Used:Root Sepcification: Baicalin 80% 85% 90% CAS No. 491-67-8 Molecular formula: C15H10O5 Molecular Weight:270.2
Cas:491-67-8
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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:491-67-8
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inquiryItems Standard Result Appearance Light cream yellow powder Complies Odor Characteristic
Cas:491-67-8
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inquiryWhy is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c
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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
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inquirySpecifications Type: Herbal Extract Variety: Baicalein Form: Powder Part: Other Extraction Type: Solvent Extraction Pac
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inquiryhebei yanxi chemical 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 research and developm
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inquiryCompany profile Xi’an Quanao Biotech Co., Ltd. with 10 years experience in plant extract filed. Focus on the research, production and sale of Plant and Animal extract, Medical intermediate, complete coverage six industries. Product grade: Med
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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
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
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inquiryBaicalein CAS: 491-67-8;27462-75-5 Molecular Formula: C15H10O5 Home Product Category Organic raw materials Ketones 491-67-8 491-67-8 - Names and Identifiers Name Baicalein Synonyms Noroxylin Baicalein Baicele
Cas:491-67-8
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inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:491-67-8
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inquiryZorui combines R&D, production and sales into its operations, While continuously providing high-quality raw materials, we also provide and optimize technical solutions for customers to achieve mutual benefit. We adhere to the "quality, integ
Cas:491-67-8
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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
Name: Baicalein CAS no. : 491-67-8 Molecular formula: C15H10O5 Molecular weight: 270.24 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability
Cas:491-67-8
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inquiryOur advantage: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 Scient
Cas:491-67-8
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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
Cas:491-67-8
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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:491-67-8
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inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:491-67-8
Min.Order:10 Kilogram
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Type:Trading Company
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:491-67-8
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inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At pres
Cas:491-67-8
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inquiryQingdao 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 organic intermediates, steroids, pharmaceutical
Cas:491-67-8
Min.Order:10 Gram
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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:491-67-8
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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
Cas:491-67-8
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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
superior quality Appearance:yellow crystalline solid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:An inhibitor of 12-lipoxygenase, leukotriene
Cas:491-67-8
Min.Order:1 Kilogram
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Type:Trading Company
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
A 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:491-67-8
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryNanjing Spring & Autumn Biological Engineering Co., Ltd. Which was founded at 2008, has an R & D team composed very experienced natural products chemists. The company is a high-tech enterprise engaged in functional health care products raw ma
Chengdu Biopurify Phytochemicals Ltd. is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medic
baicalin
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sulfuric acid; water at 20℃; for 0.166667h; | 93% |
With sulfuric acid In water at 90℃; for 0.0833333h; | 71.9% |
With sulfuric acid at 90℃; for 0.166667h; | 29.3% |
Baicalin methyl ester
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sulfuric acid In ethanol; water at 95℃; for 8.5h; Inert atmosphere; | 97% |
With hydrogenchloride In ethanol at 85℃; for 12h; Temperature; Reagent/catalyst; Inert atmosphere; | 91.8% |
5,7-dimethoxy-6-hydroxyflavone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogen bromide at 120 - 130℃; Reagent/catalyst; Temperature; Reflux; | 91% |
With hydrogen bromide at 120℃; Reagent/catalyst; Temperature; Inert atmosphere; | 88% |
Multi-step reaction with 2 steps 1: potassium carbonate; acetone 2: aqueous hydriodic acid; acetic acid anhydride / 140 °C View Scheme |
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid at 130℃; | 92% |
With hydrogen bromide; acetic acid for 18h; Heating; | 89% |
With pyridine hydrochloride at 190℃; for 6.5h; Inert atmosphere; | 85% |
5,6-dihydroxy-7-methoxyflavone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With water; hydrogen bromide; acetic acid for 18h; Reflux; | 85% |
With water; hydrogen bromide; Aliquat 336 at 105℃; for 8h; Catalytic behavior; | 80% |
With hydrogen iodide; acetic anhydride |
4-oxo-2-phenyl-4H-1-benzopyran-5,6,7-triyl triacetate
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Stage #1: 4-oxo-2-phenyl-4H-1-benzopyran-5,6,7-triyl triacetate With sodium hydroxide In water; acetone at 0℃; for 1h; Stage #2: With hydrogenchloride In water; acetone pH=6 - 7; | 66.7% |
Conditions | Yield |
---|---|
With water; hydrogen bromide; Aliquat 336 at 105℃; for 7h; Catalytic behavior; | 84% |
With hydrogen bromide; acetic acid for 12h; Heating; | 81% |
2',4',5',6'-tetrahydroxyflavone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride; lithium hydroxide; sulfuric acid In tetrahydrofuran; acetic acid |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sulfuric acid; acetic acid for 1h; Reflux; |
baicalein 6-O-β-D-glucopyranoside
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 90℃; for 0.5h; |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 90℃; for 0.5h; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 90 percent / BF3-Et2O / 0.25 h / Heating 2: 87 percent / I2; DMSO / 2 h / Heating 3: 89 percent / HBr; glacial AcOH / 18 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1: 90 percent / BF3-Et2O / 0.25 h / Heating 2: 87 percent / I2; DMSO / 2 h / Heating 3: 88 percent / HBr; glacial AcOH / 2 h / Heating 4: 81 percent / HBr; glacial AcOH / 12 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1: 90 percent / BF3-Et2O / 0.25 h / Heating 2: 91 percent / HBr; glacial AcOH / 2 h / Heating 3: 46 percent / I2; DMSO / Heating 4: 81 percent / HBr; glacial AcOH / 12 h / Heating View Scheme | |
Multi-step reaction with 3 steps 1: boron trifluoride diethyl etherate / toluene 2: iodine / dimethyl sulfoxide 3: hydrogen bromide; acetic acid / 130 °C View Scheme | |
Multi-step reaction with 3 steps 1: boron trifluoride diethyl etherate / dichloromethane / 0.17 h / Reflux 2: iodine / dimethyl sulfoxide / 3 h / Reflux 3: hydrogen bromide; acetic acid / 48 h View Scheme |
6,7-dihydroxy-5-methoxyflavone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: BF3-Et2O / 0.25 h 2: KOH / ethanol 3: 87 percent / I2; DMSO / 2 h / Heating 4: 89 percent / HBr; glacial AcOH / 18 h / Heating View Scheme | |
Multi-step reaction with 5 steps 1: BF3-Et2O / 0.25 h 2: KOH / ethanol 3: 87 percent / I2; DMSO / 2 h / Heating 4: 88 percent / HBr; glacial AcOH / 2 h / Heating 5: 81 percent / HBr; glacial AcOH / 12 h / Heating View Scheme | |
Multi-step reaction with 5 steps 1: BF3-Et2O / 0.25 h 2: KOH / ethanol 3: 91 percent / HBr; glacial AcOH / 2 h / Heating 4: 46 percent / I2; DMSO / Heating 5: 81 percent / HBr; glacial AcOH / 12 h / Heating View Scheme |
7-hydroxy-5-methoxy-4-oxo-2-phenyl-4H-chromene-6-carbaldehyde
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aq. NaOH solution; aqueous hydrogen peroxide 2: aqueous hydrochloric acid View Scheme |
6-hydroxy-2,3,4-trimethoxyacetophenone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: KOH / ethanol 2: 87 percent / I2; DMSO / 2 h / Heating 3: 89 percent / HBr; glacial AcOH / 18 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1: KOH / ethanol 2: 87 percent / I2; DMSO / 2 h / Heating 3: 88 percent / HBr; glacial AcOH / 2 h / Heating 4: 81 percent / HBr; glacial AcOH / 12 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1: KOH / ethanol 2: 91 percent / HBr; glacial AcOH / 2 h / Heating 3: 46 percent / I2; DMSO / Heating 4: 81 percent / HBr; glacial AcOH / 12 h / Heating View Scheme |
3,6-dihydroxy-2,4-dimethoxyacetophenone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: sodium benzoate / 180 °C / Unter vermindertem Druck und anschliessend Erwaermen mit wss.-aethanol. Kalilauge 2: potassium carbonate; acetone 3: aqueous hydriodic acid; acetic acid anhydride / 140 °C View Scheme | |
Multi-step reaction with 3 steps 1: hydrogenchloride; sodium hydroxide / water / 48 h / 20 °C / Inert atmosphere 2: iodine; sodium hydrogensulfite / dimethylsulfoxide-d6 / 48 h / 120 °C / Cooling with ice 3: hydrogen bromide / 120 °C / Inert atmosphere View Scheme |
6′-hydroxy-2′,3′,4′-trimethoxychalcone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: iodine / dimethyl sulfoxide 2: hydrogen bromide; acetic acid / 130 °C View Scheme | |
Multi-step reaction with 2 steps 1: iodine / dimethyl sulfoxide / 3 h / Reflux 2: hydrogen bromide; acetic acid / 48 h View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: thionyl chloride / benzene / Reflux 2: boron trifluoride diethyl etherate / toluene 3: iodine / dimethyl sulfoxide 4: hydrogen bromide; acetic acid / 130 °C View Scheme | |
Multi-step reaction with 4 steps 1: oxalyl dichloride; N,N-dimethyl-formamide / dichloromethane / 2 h / 20 °C / Cooling with ice 2: boron trifluoride diethyl etherate / dichloromethane / 0.17 h / Reflux 3: iodine / dimethyl sulfoxide / 3 h / Reflux 4: hydrogen bromide; acetic acid / 48 h View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: N,N-dimethyl-formamide; oxalyl dichloride / dichloromethane / 2 h / 20 °C / Cooling with ice 2: boron trifluoride diethyl etherate / 0.17 h / Reflux 3: iodine / dimethyl sulfoxide / 3 h / Reflux 4: hydrogen bromide; acetic acid / 48 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1: boron trifluoride diethyl etherate; acetic anhydride / 1,2-dichloro-ethane; methanol / 8 h / 90 °C / Reflux 2: iodine / dimethyl sulfoxide / 6 h / 180 °C 3: hydrogen bromide / 120 - 130 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: acetic acid; sulfuric acid; sodium bromide; dihydrogen peroxide / 20 - 45 °C 2.1: copper(l) chloride / methanol; N,N-dimethyl-formamide / 100 - 110 °C 3.1: boron trifluoride diethyl etherate / chloroform / 36 h / 20 - 60 °C 3.2: 120 °C / Reflux 4.1: iodine / dimethyl sulfoxide / 6 h / 180 °C 5.1: hydrogen bromide / 120 - 130 °C / Reflux View Scheme | |
Multi-step reaction with 5 steps 1: acetic acid; sulfuric acid; sodium bromide; dihydrogen peroxide / 20 - 45 °C 2: copper(l) chloride / methanol; N,N-dimethyl-formamide / 100 - 110 °C 3: boron trifluoride diethyl etherate; acetic anhydride / 1,2-dichloro-ethane; methanol / 8 h / 90 °C / Reflux 4: iodine / dimethyl sulfoxide / 6 h / 180 °C 5: hydrogen bromide / 120 - 130 °C / Reflux View Scheme | |
Multi-step reaction with 6 steps 1: acetic acid; sulfuric acid; sodium bromide; dihydrogen peroxide / 20 - 45 °C 2: copper(l) chloride / methanol; N,N-dimethyl-formamide / 100 - 110 °C 3: boron trifluoride diethyl etherate / chloroform / 10 h / 20 - 60 °C 4: boron trifluoride diethyl etherate; acetic anhydride / chloroform / 36 h / 60 °C / Reflux 5: iodine / dimethyl sulfoxide / 6 h / 180 °C 6: hydrogen bromide / 120 - 130 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: copper(l) chloride / methanol; N,N-dimethyl-formamide / 100 - 110 °C 2.1: boron trifluoride diethyl etherate / chloroform / 36 h / 20 - 60 °C 2.2: 120 °C / Reflux 3.1: iodine / dimethyl sulfoxide / 6 h / 180 °C 4.1: hydrogen bromide / 120 - 130 °C / Reflux View Scheme | |
Multi-step reaction with 4 steps 1: copper(l) chloride / methanol; N,N-dimethyl-formamide / 100 - 110 °C 2: boron trifluoride diethyl etherate; acetic anhydride / 1,2-dichloro-ethane; methanol / 8 h / 90 °C / Reflux 3: iodine / dimethyl sulfoxide / 6 h / 180 °C 4: hydrogen bromide / 120 - 130 °C / Reflux View Scheme | |
Multi-step reaction with 5 steps 1: copper(l) chloride / methanol; N,N-dimethyl-formamide / 100 - 110 °C 2: boron trifluoride diethyl etherate / chloroform / 10 h / 20 - 60 °C 3: boron trifluoride diethyl etherate; acetic anhydride / chloroform / 36 h / 60 °C / Reflux 4: iodine / dimethyl sulfoxide / 6 h / 180 °C 5: hydrogen bromide / 120 - 130 °C / Reflux View Scheme |
2,4,6-trimethoxyphenol
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: boron trifluoride diethyl etherate / chloroform / 36 h / 20 - 60 °C 1.2: 120 °C / Reflux 2.1: iodine / dimethyl sulfoxide / 6 h / 180 °C 3.1: hydrogen bromide / 120 - 130 °C / Reflux View Scheme | |
Multi-step reaction with 3 steps 1: boron trifluoride diethyl etherate; acetic anhydride / 1,2-dichloro-ethane; methanol / 8 h / 90 °C / Reflux 2: iodine / dimethyl sulfoxide / 6 h / 180 °C 3: hydrogen bromide / 120 - 130 °C / Reflux View Scheme | |
Multi-step reaction with 4 steps 1: boron trifluoride diethyl etherate / chloroform / 10 h / 20 - 60 °C 2: boron trifluoride diethyl etherate; acetic anhydride / chloroform / 36 h / 60 °C / Reflux 3: iodine / dimethyl sulfoxide / 6 h / 180 °C 4: hydrogen bromide / 120 - 130 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
With hydrogen iodide; acetic anhydride at 150℃; |
Conditions | Yield |
---|---|
With hydrogen iodide; acetic anhydride at 150℃; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: boron trifluoride diethyl etherate / 0.17 h / Reflux 2: iodine / dimethyl sulfoxide / 3 h / Reflux 3: hydrogen bromide; acetic acid / 48 h / Reflux View Scheme |
5-hydroxy-2,4,6-trimethoxyacetophenone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: boron trifluoride diethyl etherate; acetic anhydride / chloroform / 36 h / 60 °C / Reflux 2: iodine / dimethyl sulfoxide / 6 h / 180 °C 3: hydrogen bromide / 120 - 130 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: boron trifluoride diethyl etherate / chloroform / 36 h / 20 - 60 °C 1.2: 120 °C / Reflux 2.1: iodine / dimethyl sulfoxide / 6 h / 180 °C 3.1: hydrogen bromide / 120 - 130 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: sodium dithionite / water / 3 h / 20 °C 2: boron trifluoride diethyl etherate / chloroform / 10 h / 20 - 90 °C 3: hydrogenchloride; sodium hydroxide / water / 48 h / 20 °C / Inert atmosphere 4: iodine; sodium hydrogensulfite / dimethylsulfoxide-d6 / 48 h / 120 °C / Cooling with ice 5: hydrogen bromide / 120 °C / Inert atmosphere View Scheme |
2,6-dimethoxy-1,4-hydroquinone
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: boron trifluoride diethyl etherate / chloroform / 10 h / 20 - 90 °C 2: hydrogenchloride; sodium hydroxide / water / 48 h / 20 °C / Inert atmosphere 3: iodine; sodium hydrogensulfite / dimethylsulfoxide-d6 / 48 h / 120 °C / Cooling with ice 4: hydrogen bromide / 120 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran; water for 2h; | 100% |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
methyl iodide
5,6,7-trimethoxyflavone
Conditions | Yield |
---|---|
With pyridine; potassium carbonate; potassium iodide In acetone at 60℃; for 8h; Reflux; | 95% |
With potassium carbonate In acetone for 8h; Heating; | 82% |
With potassium carbonate; acetone |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
acetic anhydride
4-oxo-2-phenyl-4H-1-benzopyran-5,6,7-triyl triacetate
Conditions | Yield |
---|---|
With pyridine at 70℃; for 6h; | 94% |
With sodium acetate at 80℃; for 2h; | 92% |
With sodium acetate at 75℃; | 91.1% |
morpholine
formaldehyd
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
8-morpholinemethylene baicalein
Conditions | Yield |
---|---|
In methanol at 55℃; | 93.5% |
In methanol; water at 20℃; for 2h; Mannich reaction; | 69% |
pyrrolidine
formaldehyd
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
5,6,7-trihydroxy-2-phenyl-8-(pyrrolidin-1-ylmethyl)-4H-chromen-4-one
Conditions | Yield |
---|---|
In methanol at 45℃; | 92.5% |
In methanol; water at 20℃; for 2h; Mannich reaction; | 71% |
In methanol; water at 70℃; for 8h; Mannich Aminomethylation; |
formaldehyd
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
di-n-propylamine
Conditions | Yield |
---|---|
In methanol at 45℃; | 92.5% |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With dmap; benzotriazol-1-ol; dicyclohexyl-carbodiimide In dichloromethane at 20℃; | 92% |
Dichlorodiphenylmethane
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
diazomethyl-trimethyl-silane
Conditions | Yield |
---|---|
Stage #1: Dichlorodiphenylmethane; 5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one at 170℃; for 1h; Stage #2: diazomethyl-trimethyl-silane In tetrahydrofuran; methanol; hexane at 20℃; for 24h; | 90% |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
(R,R)-1,2-diphenylethylenediamine
Conditions | Yield |
---|---|
In ethanol at 20℃; for 168h; | 90% |
1-methyl-piperazine
formaldehyd
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
5,6,7-trihydroxy-8-((4-methylpiperazin-1-yl)methyl)-2-phenyl-4H-chromen-4-one
Conditions | Yield |
---|---|
In methanol at 50℃; | 89.5% |
In methanol; water at 20℃; for 2h; Mannich reaction; | 72.2% |
In methanol at 55℃; for 4h; |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 24h; Heating; | 87% |
With potassium carbonate In acetone for 24h; Heating / reflux; | 87% |
Conditions | Yield |
---|---|
In ethanol; water at 90℃; for 8h; Condensation; | 85% |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
β-D-galactopyranosyl-(1->4)-α-D-glucopyranosyl fluoride
Conditions | Yield |
---|---|
With Tris buffer at 37℃; pH=7.0; | 84% |
With Tris-HCl buffer at 25℃; pH=7.8; Enzyme kinetics; |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
acetic anhydride
5-hydroxy-4-oxo-2-phenyl-4H-1-benzopyran-6,7-diyl diacetate
Conditions | Yield |
---|---|
With pyridine; sodium acetate at 120℃; for 8h; | 84% |
With pyridine; dmap for 24h; |
1-chloro-2,4-dinitro-6-trifluoromethylbenzene
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 20℃; | 83% |
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Stage #1: 5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one With [D]-sodium hydroxide; platinum on activated charcoal; water-d2 at 130℃; for 12h; Inert atmosphere; Stage #2: With formic acid at 130℃; for 12h; Temperature; Inert atmosphere; | 83% |
Conditions | Yield |
---|---|
In ethanol; ethyl acetate at 20 - 50℃; | 82.6% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 30h; Heating; | 82% |
With potassium carbonate In acetone for 30h; Heating / reflux; | 82% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 24h; Heating; | 82% |
With potassium carbonate In acetone for 24h; Heating / reflux; | 82% |
Conditions | Yield |
---|---|
at 170℃; for 1h; | 81% |
caffeic acid
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
C23H18O7
Conditions | Yield |
---|---|
With cerium(III) chloride heptahydrate; sodium iodide In ethanol; acetonitrile for 0.2h; Reflux; | 80% |
formaldehyd
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
dimethyl amine
8-((dimethylamino)methyl)-5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one
Conditions | Yield |
---|---|
In methanol; water at 20℃; for 2h; Mannich reaction; | 79% |
In methanol at 20℃; for 1.5h; Mannich Aminomethylation; | 10.5% |
4-chloro-3,5-dinitrobenzotrifluoride
5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 20℃; | 78% |
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