Xi'an Kono Chem Co., Ltd., founded in 2014, is a holding enterprise of Hongkong Pioneer Biotech Group. It is an export-oriented manufacturing enterprise supported by the Ministry of Commerce. Kono Chem is located in Xi'an, Shaanxi Provin
Cartoon Ingredients Co.,Ltd.is located in NanJing, the capital of Jiangsu Province.with Convenient traffic As a manufacturer, the company mainly engaged in providing Food ingredients, Herbal extracts, Vitamins, APIs and Fine chemicals &a
Genistein Product name: Genistein Specification: 98% Appearance: White powder Part Used: Flower Extract Solution: Grain alcohol CAS No: 446-72-0 Introduction Genista is a genus of flowering plants in the legume family Fabac
Cas:446-72-0
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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:446-72-0
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inquiryItems Standard Result Appearance Pale yellow fine powder Complies Odor Odorless
Cas:446-72-0
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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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inquiryHebei yanxi chemical co., LTD is a professional research, development and production 2-phenylacetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environ
Best service,high quality and cheap price. Appearance: White Powder Storage:Store in cool & dry place ,do not freeze.keep away from strong light and heat Package:25kg/drum,1kg/bag Application:Mainly used in medicine, health food, tobacco, cosmetics
Come From Nature / Building Healthy Life Beauty In Your Face / Nourishment Your Taste Bud. Professional Factory: We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of con
Cas:446-72-0
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inquiryFunctions 1.Be used as antioxidant . 2.Inhibition of angiogenesis, and tyrosine kinases, 3.Antioxidant and anti-estrogen action . 4.Genistein powder is also used to ease menopause symptoms, such as hot flushes. Certifications H
Cas:446-72-0
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inquiryProduct name Genistein CAS NO. 446-72-0 HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences on t
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
More than 20 years experience in Phytochemical Each product has passed very strict tests (NMR; MS; HPLC) Agents in 13 countries Certified by ISO 9001:2015 quality management system Leader Supplier of Botanical Reference Materials in China M
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:446-72-0
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inquiryGenistein CAS: 446-72-0 Molecular Formula: C15H10O5 Home Product Category Biomedicine Chinese herbal extracts 446-72-0 446-72-0 - Names and Identifiers Name Genistein Synonyms prunetol Genistein C.I. 75610
Cas:446-72-0
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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:446-72-0
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inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
Zorui 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
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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
Cas:446-72-0
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inquiryName:Genistein CAS NO:446-72-0 Grade:Medical scientific research and export Molecular formula:C15H10O5 Molecular weight:270.2369 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data sto
Cas:446-72-0
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Type:Other
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:446-72-0
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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:446-72-0
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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:446-72-0
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Type:Trading Company
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:446-72-0
Min.Order:10 Kilogram
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Type:Trading Company
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Cas:446-72-0
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Type:Lab/Research institutions
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W
Cas:446-72-0
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inquiryProduct Name: Genistein Appearance: Light Yellow Powder Cas. No.: 446-72-0 EINECS No.: 207-174-9 Molecular Formula: C15H10O5 Molecular Weight: 270.24 Specification: 99% Appearance:Yellow Crystalline Solid Storage:Store in cool and dry place,
Cas:446-72-0
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Type:Other
inquiryHanways chempharm is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The marketing department is located in Wuhan. We have two GMP facilities in Hubei Pr
Cas:446-72-0
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inquiry1,In No Less ten years exporting experience. 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Onchem specialized in APIs, chemical intermedi
Cas:446-72-0
Min.Order:100 Gram
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Type:Lab/Research institutions
inquiryWe are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery
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Type:Trading Company
inquiryConditions | Yield |
---|---|
β-glucosidase, derived from Aspergillus niger In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 100% |
In hydrogenchloride | 99% |
β-glucosidase, derived from almond In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 11.8% |
genistein-7-O-β-D-(6''-O-acetylglucopyranoside)
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
diglycosidase, produced by Penicillium multicolor IAM7153 In methanol at 55℃; for 3h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 99.9% |
diglycosidase, produced by Aspergillus fumigatus IAM2046 In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 35.2% |
β-glucosidase, derived from Aspergillus niger In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 6.2% |
β-xylosidase, derived from pectinase G In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 0.5% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin With sodium carbonate In N,N-dimethyl-formamide at 25℃; for 3h; Stage #2: sulfur trioxide N,N-dimethylformamide complex In N,N-dimethyl-formamide at 0 - 80℃; for 18.5h; Stage #3: With sulfuric acid; water In N,N-dimethyl-formamide for 0.666667h; Product distribution / selectivity; | 95% |
2,4,4',6-tetrahydroxydeoxybenzoin
sodium formate
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; sodium formate With propionyl chloride In acetone at 21 - 32℃; for 1h; Stage #2: With triethylamine In acetone at 20 - 32℃; for 2.5h; Stage #3: With sulfuric acid; water In acetone at 20℃; for 16h; Product distribution / selectivity; | 94.8% |
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; sodium formate With acetyl chloride In acetone at 12 - 25℃; for 2h; Stage #2: With triethylamine In acetone at 18 - 32℃; for 3h; Stage #3: With sulfuric acid; water In acetone at 20℃; for 16h; Product distribution / selectivity; | 91.7% |
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; sodium formate With isobutyryl chloride In acetone at 21 - 32℃; for 2h; Stage #2: With triethylamine In acetone at 18 - 32℃; for 2.5h; Stage #3: With sulfuric acid; water In acetone at 20℃; for 16h; Product distribution / selectivity; | 90.2% |
2,4,4',6-tetrahydroxydeoxybenzoin
sodium formate
propionyl chloride
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: sodium formate; propionyl chloride In acetone at 21 - 35℃; for 3h; Stage #2: 2,4,4',6-tetrahydroxydeoxybenzoin With triethylamine In acetone at 20 - 22℃; for 2h; Stage #3: With sulfuric acid; water In acetone at 20℃; for 16h; | 93% |
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; sodium formate; propionyl chloride In acetone at 21 - 35℃; for 2h; Stage #2: With triethylamine In acetone at 18 - 35℃; for 3h; Stage #3: With sulfuric acid; water In acetone at 60 - 70℃; for 1.5h; | 92.2% |
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; sodium formate; propionyl chloride In formic acid ethyl ester at 23 - 35℃; for 3h; Stage #2: With triethylamine In formic acid ethyl ester at 18 - 22℃; for 16h; Stage #3: With sulfuric acid; water In formic acid ethyl ester at 80℃; | 92.7% |
3-(4-hydroxyphenyl)-5,7-bis(methoxymethoxy)-4H-1-benzopyran-4-one
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogenchloride; water In methanol; chloroform for 1h; Reflux; | 92% |
2,4,4',6-tetrahydroxydeoxybenzoin
sodium formate
isobutyryl chloride
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; sodium formate; isobutyryl chloride In acetone at 21 - 32℃; for 3h; Stage #2: With triethylamine In acetone at 18 - 32℃; for 2h; Stage #3: With sulfuric acid; water In acetone at 60 - 70℃; for 3h; | 90.3% |
2,4,4',6-tetrahydroxydeoxybenzoin
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate; methanesulfonyl chloride In N,N-dimethyl-formamide at 50℃; for 12h; Molecular sieve; | 90% |
With methanesulfonyl chloride In N,N-dimethyl-formamide at 60 - 70℃; for 1h; | 53% |
Multi-step reaction with 2 steps 1: pyridine / Behandeln des Reaktionsprodukts mit wss. Natronlauge 2: 325 °C View Scheme |
2,4,4',6-tetrahydroxydeoxybenzoin
N,N-dimethyl-formamide
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: N,N-dimethyl-formamide With phosphorus pentachloride at 55℃; for 0.333333h; Chlorination; Stage #2: 2,4,4',6-tetrahydroxydeoxybenzoin With boron trifluoride diethyl etherate In N,N-dimethyl-formamide at 20℃; for 1h; Cycloaddition; | 90% |
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin With boron trifluoride diethyl etherate In N,N-dimethyl-formamide at 50 - 60℃; Cooling with ice; Stage #2: N,N-dimethyl-formamide With methanesulfonyl chloride at 50 - 70℃; | 84% |
With boron trifluoride diethyl etherate; methanesulfonyl chloride 1.) irradiation, reflux, 15 s, 2.) irradiation, reflux, 1 min; Yield given. Multistep reaction; | |
With phosphorus pentachloride; boron trifluoride diethyl etherate at 20℃; for 1h; Cyclization; | |
With boron trifluoride diethyl etherate; methanesulfonyl chloride at 50 - 100℃; |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With sulfatase VIII In water at 37℃; for 0.5h; pH=5.2; | 89% |
formic acid
2,4,4',6-tetrahydroxydeoxybenzoin
propionic acid anhydride
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: formic acid; propionic acid anhydride at 25 - 45℃; for 2h; Stage #2: 2,4,4',6-tetrahydroxydeoxybenzoin With triethylamine In acetone at 20 - 40℃; for 19h; Stage #3: With sulfuric acid; water In acetone at 60℃; | 86.5% |
Stage #1: formic acid; 2,4,4',6-tetrahydroxydeoxybenzoin; propionic acid anhydride at 25 - 45℃; for 2h; Stage #2: With triethylamine at 20 - 40℃; for 19h; Stage #3: With sulfuric acid; water at 75℃; for 2.5h; | 82.5% |
5,7-Dihydroxy-3-(4-methoxy-phenyl)-chromen-4-on
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With aluminum (III) chloride In toluene at 140℃; for 6h; | 84% |
With aluminium trichloride In benzene for 18h; Heating; | 47% |
With hydrogen iodide |
2,4,4',6-tetrahydroxydeoxybenzoin
Propionic formic anhydride
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: 2,4,4',6-tetrahydroxydeoxybenzoin; Propionic formic anhydride With triethylamine In acetone at 25 - 40℃; for 3h; Stage #2: With sulfuric acid; water In acetone at 20 - 60℃; | 84% |
6''-O-malonylgenistin
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
diglycosidase, produced by Penicillium multicolor IAM7153 In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 82.3% |
β-glucosidase, derived from Aspergillus niger In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 12.1% |
diglycosidase, produced by Aspergillus fumigatus IAM2046 In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 8.2% |
β-xylosidase, derived from pectinase G In methanol at 55℃; for 6h; pH=4; Enzyme kinetics; Aqueous acetate buffer; | 2% |
With Dalbergia nigrescens β-glucosidase In acetate buffer; dimethyl sulfoxide at 37℃; for 0.166667h; pH=5.5; Enzyme kinetics; Further Variations:; Reagents; |
formic acid
2,4,4',6-tetrahydroxydeoxybenzoin
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: formic acid; 2,4,4',6-tetrahydroxydeoxybenzoin With acetic anhydride; triethylamine at 20℃; for 24h; Industrial scale; Stage #2: With hydrogenchloride; water In methanol at 20℃; for 22h; Industrial scale; | 79.5% |
1,3,5-Triazine
2,4,4',6-tetrahydroxydeoxybenzoin
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate; acetic anhydride In diethyl ether; acetic acid Heating; | 78% |
2-bromo-1-(4'-hydroxyphenyl)-1-ethanone
2,4,6-trihydroxybenzaldehyde
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: 2-bromo-1-(4'-hydroxyphenyl)-1-ethanone With thiamine hydrochloride In ethanol at 20℃; for 0.25h; Green chemistry; Stage #2: 2,4,6-trihydroxybenzaldehyde In ethanol at 20℃; for 1.58333h; Green chemistry; | 75% |
2,4,4',6-tetrahydroxydeoxybenzoin
sodium formate
benzoyl chloride
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
Stage #1: sodium formate; benzoyl chloride In acetone at 21 - 40℃; for 3h; Stage #2: 2,4,4',6-tetrahydroxydeoxybenzoin With triethylamine In acetone at 21 - 35℃; for 3h; Stage #3: With sulfuric acid; water In acetone at 20℃; for 16h; | 52.7% |
5,7-dihydroxy-3-(4-hydroxy-phenyl)-4-oxo-4H-chromene-2-carboxylic acid
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
at 325℃; |
7-((2S,3R,4R)-3,4-Dihydroxy-4-hydroxymethyl-tetrahydro-furan-2-yloxy)-3-[4-((2R,3S,4S)-3,4-dihydroxy-4-hydroxymethyl-tetrahydro-furan-2-yloxy)-phenyl]-5-hydroxy-chromen-4-one
A
D-apiose
B
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With sulfuric acid Heating; |
7,4'-di-O-<4-O-β-D-glucopyranosyl-β-D-apiofuranoside> genisteol
A
D-apiose
B
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
C
D-glucose
Conditions | Yield |
---|---|
With sulfuric acid In water for 2h; Heating; |
5-O-β-D-glucopyranosylgenistein
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With malic acid at 60℃; other object of study: half-lives; other reagent : acetic acid, oxalic acid, HCl; other temperature; |
4′,7-dihydroxy-8β-D-glucose isoflavone
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogen iodide; phenol at 135℃; for 7h; Heating; | 25 mg |
6,8-di-C-β-D-glucopyranosyl-4',5,7-trihydroxyisoflavone
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogen iodide; phenol Heating; | 20 mg |
1-(2-acetoxy-4,6-dihydroxyphenyl)-3,3-dimethoxy-2-(4-hydroxyphenyl)propan-1-one
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogenchloride In methanol for 2h; Heating; Yield given; |
A
D-Glucose
B
p-Coumaric Acid
C
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogenchloride In methanol Heating; |
Conditions | Yield |
---|---|
With water Hydrolysis; Acid hydrolysis; |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogen iodide; acetic anhydride; acetic acid |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With hydrogen iodide at 130℃; |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
benzenesulfonyl chloride
3-(4-benzenesulfonyloxyphenyl)-5,7-bis(benzenesulfonyloxy)-4H-chromen-4-one
Conditions | Yield |
---|---|
With pyridine at -20℃; for 3h; Inert atmosphere; | 99% |
Conditions | Yield |
---|---|
With triethylamine In acetone at 20℃; for 24h; | 98.6% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
acetic anhydride
4',5,7-Triacetoxyisoflavone
Conditions | Yield |
---|---|
With pyridine Reflux; | 98% |
With pyridine at 70℃; for 6h; | 96% |
With pyridine In chloroform at 20℃; for 8h; Inert atmosphere; | 93% |
for 6h; Heating; | 53% |
Acetylation; |
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 30℃; for 2.5h; Etherification; | 96% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Conditions | Yield |
---|---|
With ammonium nitrate; trifluoroacetic anhydride In acetonitrile at 20℃; for 1.5h; | 96% |
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 30℃; for 2.5h; Etherification; | 95% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
methyl iodide
4',5,7-trimethoxyisoflavone
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 4h; | 95% |
With potassium carbonate In acetone at 60℃; | 95% |
With potassium carbonate In acetone at 50℃; for 3h; sonication; | 85% |
Conditions | Yield |
---|---|
With α-glucosidase from sulfolobus solfataricus In dimethyl sulfoxide at 45℃; for 2h; pH=9; Enzymatic reaction; | 95% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
acetic anhydride
4-(7-acetoxy-5-hydroxy-4-oxo-4H-chromen-3-yl)phenyl acetate
Conditions | Yield |
---|---|
In pyridine at 20℃; for 24h; | 92% |
In pyridine at 20℃; for 24h; | 92% |
With pyridine at 20℃; for 24h; | 92% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
Hexanoyl chloride
5,7,4'-tri-O-hexanoyl-genistein
Conditions | Yield |
---|---|
With pyridine; dmap | 91% |
With pyridine; dmap In chloroform at 20℃; for 9h; Inert atmosphere; | 91% |
With dmap; triethylamine In N,N-dimethyl-formamide at 20℃; for 4.5h; Cooling with ice; | 81% |
With pyridine at 0 - 20℃; for 18h; |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
A
dihydrogenistein
(3S,4R)-3-(4-Hydroxy-phenyl)-chroman-4,5,7-triol
Conditions | Yield |
---|---|
With ammonium formate; palladium on activated charcoal In methanol Ambient temperature; | A 90% B n/a |
With ammonium formate; palladium on activated charcoal In methanol for 2h; Heating; | A 59% B 21% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
1,3-dibromo-propane
4',5,7-tri(3-bromopropoxy)isoflavone
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 1.5h; sonication; | 90% |
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 4.75h; |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
benzenesulfonyl chloride
3-(4-hydroxyphenyl)-7-benzenesulfonyloxy-5-hydroxy-4H-chromen-4-one
Conditions | Yield |
---|---|
With pyridine In tetrahydrofuran at -20℃; for 0.333333h; Inert atmosphere; | 90% |
Conditions | Yield |
---|---|
In methanol; water at 20℃; | 89% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
ethylene dibromide
7-(2-bromoethoxy)-5-hydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide sonication; | 88% |
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 1.5h; sonication; | 86% |
With sodium hydrogencarbonate In acetone at 65℃; for 24h; | 71% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
acetic anhydride
A
4-(7-acetoxy-5-hydroxy-4-oxo-4H-chromen-3-yl)phenyl acetate
Conditions | Yield |
---|---|
With pyridine for 7h; Reflux; | A 87.2% B 5.3% |
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 30℃; for 2.5h; Etherification; | 87% |
5,7-Dihydroxy-3-(4-hydroxy-phenyl)-chromen-4-on
1,3-dibromo-propane
7-(3-bromopropoxy)-5-hydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide sonication; | 87% |
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 1.5h; sonication; | 85% |
With sodium hydrogencarbonate; potassium carbonate In acetone at 65℃; for 8h; | 78.47% |
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 2h; | 87% |
With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 2h; | 87% |
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