Product Name : Fructus Cnidii Extract Latin Name :Cnidium monnieri (L.) Cuss Used part: seed Quality data Identification Standardization Aspect
Cas:484-12-8
Min.Order:1 Kilogram
FOB Price: $15.5
Type:Trading Company
inquiry.english name: cnidium fruit extract latin name:c.monnieri (l.) cusson source:the fruit of the cnidium monnieri (l.) cusson. ingredients:containing pinene,bornyl isovalarate,osthol,berapt
Cas:484-12-8
Min.Order:1 Kilogram
FOB Price: $1119.0 / 1139.0
Type:Trading Company
inquiryNatural product : 100% natural product, without any synthetic ingredients. Manufacturer : China's leading manufacturer of plant extracts. Quality : Our products have undergone comprehensive inspection and all have passed strict testing. In s
Cas:484-12-8
Min.Order:5 Gram
Negotiable
Type:Trading Company
inquiryThe quality is guaranteed. If you find the product is wrong compared with COA, we promise 100% refund or change product. COA and HPLC will be shipped out with goods. You can also inform your analysis method and we will follow your analysis me
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
Cas:484-12-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryXi'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 Province,
Cas:484-12-8
Min.Order:1 Kilogram
FOB Price: $18.0 / 100.0
Type:Other
inquiryHebei yanxi chemical co., LTD is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carb
Best service,high quality and cheap price. Appearance:Powder Storage:Stored in a cool and dry well-closed container,keep away from moisture and strong light/heat Package:25kg/drum,1kg/bag Application:Mainly used in medicine, health food, tobacco, c
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:484-12-8
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryOur Advantages: 1. Free samples and unconditional hypothetical responses. 2.100% natural product, without any synthetic ingredients. 3. Direct sales from manufacturers, providing OEM and R&D services. 4. Complete certificates. 5. China's lead
Product Name: Osthole Powder CAS: 484-12-8 Source: Cnidium Seed Extract Appearance: White Powder Test method: HPLC Grade: Food Grade Assay: 98% Used Part: Whole Herb Solubility: Soluble in hot water,hot ethanol Sample: Available Shelf Life:
Cas:484-12-8
Min.Order:1 Kilogram
FOB Price: $2.0 / 8.0
Type:Lab/Research institutions
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:484-12-8
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
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
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
Name: Osthole Alias: Common Cnidium Fruit Extract English Name: Common Cnidium Fruit Extract, Osthole Plant sources:Cnidium monnieric(L.)Cuss. CAS No.484-12-8 Molecular formula:C15H16O3 Molecular weight: 244.29 Packaging Specification: 25kg/d
Cas:484-12-8
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
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:484-12-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:484-12-8
Min.Order:1 Kilogram
FOB Price: $3.0 / 10.0
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:484-12-8
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryProduct Name: Common Cnidium Fruit Extract Spec./Purity: 5%~98% Osthole 10:1 ,20:1 powdered extract Straight powder Appearance: Brown Powder-yellow green powder-w
Hanways 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:484-12-8
Min.Order:1 Kilogram
FOB Price: $20.0 / 40.0
Type:Trading Company
inquiry1.In No Less five 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 (China) Co.,Ltd is Specia
Cas:484-12-8
Min.Order:1 Kilogram
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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
Cas:484-12-8
Min.Order:10 Gram
FOB Price: $1.32
Type:Trading Company
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 prese
Osthole CAS:484-12-8 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 quality organic intermediates, ster
Cas:484-12-8
Min.Order:1 Gram
Negotiable
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
Why Choose Us 1. Quality Price We are the manufacturer, so we can provide the competitive price and high quality product. 2. Packing Products could be packaged according to customer's specializedrequirements. 3. Transport The products can be tr
Cas:484-12-8
Min.Order:1000 Kilogram
FOB Price: $70.0 / 75.0
Type:Other
inquiryPRODUCT DETAILS
Cas:484-12-8
Min.Order:500 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
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
Shanghai SOYOUNG onsite assessment conducted by Bureau Veritas commissioned at June 2018. Assessed Supplier of Shanghai SOYOUNG is a faithful and professional supplier of health raw materials in pharmacy, food, cosmetic and other fields for many ye
Cas:484-12-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryChengdu 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
Conditions | Yield |
---|---|
Stage #1: 7-methoxy-8-iodo-2H-chromen-2-one With isopropylmagnesium chloride In tetrahydrofuran at -20℃; for 1h; Schlenk technique; Inert atmosphere; Green chemistry; Stage #2: prenyl bromide With copper(l) iodide; lithium chloride In tetrahydrofuran at -20 - 20℃; for 10.5h; Reagent/catalyst; Schlenk technique; Inert atmosphere; Green chemistry; | 80% |
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane at 45℃; for 2h; Inert atmosphere; | 77.65% |
Conditions | Yield |
---|---|
With N,N-diethylaniline at 250℃; for 1h; Microwave irradiation; Sealed tube; | 68% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); triphenylphosphine; lithium chloride In N,N-dimethyl-formamide at 80℃; for 6h; Stille Cross Coupling; Inert atmosphere; Schlenk technique; | 66.1% |
Conditions | Yield |
---|---|
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In N,N-dimethyl-formamide at 125℃; for 5h; Stille Cross Coupling; Schlenk technique; Inert atmosphere; | 32% |
2-hydroxy-4-methoxy-3-(3-methyl-2-butenyl)benzaldehyde
acetic anhydride
osthole
Conditions | Yield |
---|---|
With sodium acetate at 160℃; |
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium; benzene / anschliessend mit 4-Brom-2-methyl-buten-(2) 2: sodium acetate / 160 °C View Scheme | |
Multi-step reaction with 4 steps 1.1: aluminum (III) chloride / dichloromethane / 0.25 h / -20 °C 1.2: -20 - 20 °C 2.1: sodium hydride / tetrahydrofuran; mineral oil / 1.5 h / Reflux 2.2: 12 h / 0 °C 3.1: dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; copper(II) acetate monohydrate / acetonitrile / 16 h / 85 °C 4.1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 5 h / 125 °C / Schlenk technique; Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: potassium carbonate; potassium iodide / acetone / 22 h / 60 °C 2: ethylene glycol / 6 h / Reflux 3: potassium carbonate; potassium iodide / acetone / 5 h / 20 °C 4: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 2 h / 45 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1.1: iodine; potassium iodide; ammonium hydroxide / water / 24.5 h 2.1: potassium carbonate / acetone / 5 h / Reflux 3.1: isopropylmagnesium chloride / tetrahydrofuran / 1 h / -20 °C / Schlenk technique; Inert atmosphere; Green chemistry 3.2: 10.5 h / -20 - 20 °C / Schlenk technique; Inert atmosphere; Green chemistry View Scheme |
7-hydroxy-8-allylcoumarin
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: potassium carbonate; potassium iodide / acetone / 5 h / 20 °C 2: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 2 h / 45 °C / Inert atmosphere View Scheme |
7-allyloxycoumarin
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: ethylene glycol / 6 h / Reflux 2: potassium carbonate; potassium iodide / acetone / 5 h / 20 °C 3: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 2 h / 45 °C / Inert atmosphere View Scheme |
(ethoxycarbonylmethyl)triphenylphosphonium chloride
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: potassium hydroxide / ethanol / 1.5 h / 80 °C 2: potassium carbonate; potassium iodide / acetone / 22 h / 60 °C 3: ethylene glycol / 6 h / Reflux 4: potassium carbonate; potassium iodide / acetone / 5 h / 20 °C 5: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 2 h / 45 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: ethanol / 4 h / 80 °C 2: potassium hydroxide / ethanol / 1.5 h / 80 °C 3: potassium carbonate; potassium iodide / acetone / 22 h / 60 °C 4: ethylene glycol / 6 h / Reflux 5: potassium carbonate; potassium iodide / acetone / 5 h / 20 °C 6: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 2 h / 45 °C / Inert atmosphere View Scheme |
7-hydroxy-8-iodocoumarin
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: potassium carbonate / acetone / 5 h / Reflux 2.1: isopropylmagnesium chloride / tetrahydrofuran / 1 h / -20 °C / Schlenk technique; Inert atmosphere; Green chemistry 2.2: 10.5 h / -20 - 20 °C / Schlenk technique; Inert atmosphere; Green chemistry View Scheme |
methyl (triphenylphosphoranylidene)acetate
osthole
Conditions | Yield |
---|---|
In toluene at 220℃; for 1h; Inert atmosphere; Microwave irradiation; Sealed tube; | 928 mg |
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: hydrogen / ethyl acetate / 12 h / 20 °C / 760.05 Torr 2: toluene / 1 h / 220 °C / Inert atmosphere; Microwave irradiation; Sealed tube View Scheme |
3-bromo-2-hydroxy-4-methoxybenzaldehyde
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: sodium hydride / tetrahydrofuran; mineral oil / 1.5 h / Reflux 1.2: 12 h / 0 °C 2.1: dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; copper(II) acetate monohydrate / acetonitrile / 16 h / 85 °C 3.1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 5 h / 125 °C / Schlenk technique; Inert atmosphere View Scheme |
2-bromo-3-methoxy-6-vinylphenol
osthole
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; copper(II) acetate monohydrate / acetonitrile / 16 h / 85 °C 2: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 5 h / 125 °C / Schlenk technique; Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran 1.) 15 min, 2.) 10 h; | 98% |
With potassium hydroxide 1.) DMSO, 1 h, 2.) (Osthol : CH3I = 1:1) 12 h; Yield given. Multistep reaction; | |
Stage #1: osthole; methyl iodide With potassium hydroxide In ethanol at 90℃; for 24h; Stage #2: With hydrogenchloride In ethanol; water pH=3 - 4; | |
Stage #1: osthole; methyl iodide With ethanol; potassium hydroxide at 90℃; Stage #2: With hydrogenchloride In ethanol; water pH=3 - 4; |
osthole
8-(3-hydroxy-3-methylbutyl)-7-methoxy-2H-chromen-2-one
Conditions | Yield |
---|---|
Stage #1: osthole With mercury(II) diacetate; water In tetrahydrofuran; dichloromethane for 3h; Stage #2: With sodium tetrahydroborate In tetrahydrofuran; dichloromethane | 97% |
With sulfuric acid; water In acetic acid at 0 - 5℃; for 1h; | 80% |
With iron(III)-acetylacetonate; methyl 4-nitrobenzenesulfonate; phenylsilane; sodium hydrogencarbonate In methanol at 0 - 20℃; for 12h; Schlenk technique; Inert atmosphere; regioselective reaction; | 71% |
With boron trifluoride diethyl etherate; water In dichloromethane Ambient temperature; | 52% |
Conditions | Yield |
---|---|
Stage #1: osthole With sodium hydroxide In dimethyl sulfoxide at 25℃; for 0.5h; Stage #2: propargyl bromide In dimethyl sulfoxide at 20℃; for 2h; | 96% |
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In dichloromethane at -5℃; for 2h; | 93% |
With 3-chloro-benzenecarboperoxoic acid In dichloromethane at 0℃; | 88% |
With Perbenzoic acid; chloroform | |
Multi-step reaction with 2 steps 1: 180 mg / N-bromosuccinimide, DMSO, water / 1 h / Ambient temperature 2: 120 mg / sodium borohydride / dimethylsulfoxide / Ambient temperature View Scheme |
osthole
8-isopentyl-7-methoxy-chroman-2-one
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen In ethyl acetate at 20℃; under 760.051 Torr; for 16h; | 92% |
With palladium 10% on activated carbon; hydrogen In ethyl acetate at 20℃; under 760.051 Torr; for 16h; | 92% |
With palladium on activated charcoal; acetic acid Hydrogenation; |
Conditions | Yield |
---|---|
With platinum(IV) oxide; hydrogen In ethanol at 20℃; | 91% |
With palladium; ethyl acetate Hydrogenation; | |
With acetic acid Hydrogenation; | |
Multi-step reaction with 2 steps 1: 66 percent / H2 / Pd/C / CH2Cl2; ethanol 2: 72 percent / Pd/C / 1,3,5-trimethyl-benzene / Heating View Scheme | |
Multi-step reaction with 2 steps 1: palladium 10% on activated carbon; hydrogen / ethyl acetate / 16 h / 20 °C / 760.05 Torr 2: palladium 10% on activated carbon / 1,3,5-trimethyl-benzene / 16 h / 166 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Stage #1: osthole With methanesulfonamide; AD-mix β In water; tert-butyl alcohol at 20℃; for 12h; Stage #2: With sodium sulfite In water; tert-butyl alcohol at 20℃; for 0.5h; | 90% |
Multi-step reaction with 2 steps 1: 88 percent / m-chloroperbenzoic acid / CH2Cl2 / 0 °C 2: 73 percent / H2O, H2SO4 / tetrahydrofuran / Ambient temperature View Scheme |
osthole
Conditions | Yield |
---|---|
Stage #1: N'-(3-methoxybenzylidene)-2-nitrobenzenesulfonohydrazide With sodium hydride In dichloromethane at 20℃; for 1h; Inert atmosphere; Sealed tube; Stage #2: osthole With silver trifluoromethanesulfonate In dichloromethane at 40℃; for 18h; Inert atmosphere; Sealed tube; | 85% |
osthole
tert-Butyl acrylate
(E)-tert-butyl 4-(7-methoxy-2-oxo-2H-chromen-8-yl)but-2-enoate
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; copper(l) iodide In diethyl ether at 35℃; for 24h; Inert atmosphere; diastereoselective reaction; | 81% |
osthole
ethyl iodide
3-(2-ethoxy-4-methoxy-3-(3-methylbut-2-enyl)phenyl)acrylic acid
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran 1.) 15 min, 2.) heating; | 80% |
With potassium hydroxide 1.) DMSO, 1 h, 2.) (Osthol : C2H5I = 1:1) 12 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With L-Cysteine; sodium hydride In N,N-dimethyl-formamide for 3h; Reflux; | 77% |
With aluminium trichloride; dimethylsulfide In dichloromethane at 30℃; for 24h; | 62% |
Stage #1: osthole With aluminum (III) chloride; dimethylsulfide In dichloromethane at 0 - 30℃; Stage #2: With hydrogenchloride In dichloromethane; water | 62% |
With aluminum (III) chloride; dimethylsulfide In dichloromethane at 0 - 30℃; for 24h; | 59% |
Conditions | Yield |
---|---|
With aluminium trichloride; ethanethiol In dichloromethane at 30℃; for 24h; | 76% |
With phosphorus; hydrogen bromide |
osthole
Conditions | Yield |
---|---|
With Lawessons reagent In tetrahydrofuran for 24h; Reflux; | 76% |
With Lawessons reagent In tetrahydrofuran at 66℃; for 24h; | 351 mg |
osthole
A
8-isopentyl-7-methoxy-2H-chromen-2-one
B
8-isopentyl-7-methoxy-chroman-2-one
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In ethanol; dichloromethane | A 21% B 66% |
osthole
Conditions | Yield |
---|---|
Stage #1: osthole With water; sodium hydroxide for 8h; Reflux; Stage #2: With hydrogenchloride In water at 20℃; pH=2 - 3; | 65.7% |
osthole
(2E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-enal
Conditions | Yield |
---|---|
With selenium(IV) oxide; acetic acid for 3h; | 60% |
Conditions | Yield |
---|---|
Stage #1: osthole With water; sodium hydroxide for 0.5h; Reflux; Stage #2: dimethyl sulfate With sodium hydroxide In water at 20℃; for 1.5h; Reflux; Stage #3: With hydrogenchloride In water at 20℃; pH=2 - 3; | 55.4% |
osthole
A
(2E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-enal
B
4'-hydroxylosthole
Conditions | Yield |
---|---|
With selenium(IV) oxide In ethanol for 0.75h; Heating; | A 22% B 55% |
Conditions | Yield |
---|---|
Stage #1: osthole With water; sodium hydroxide Reflux; Stage #2: dimethyl sulfate With sodium hydroxide In water at 20℃; for 3.5h; Reflux; Stage #3: With hydrogenchloride In water at 20℃; pH=2 - 3; | 52.2% |
osthole
Conditions | Yield |
---|---|
With selenium(IV) oxide; acetic acid for 3h; | 50% |
With selenium(IV) oxide In ethanol at 65℃; for 10h; Inert atmosphere; | |
With selenium(IV) oxide In 1,4-dioxane at 60 - 80℃; for 1.5h; |
osthole
sodium difluoromethanesulfinate
Conditions | Yield |
---|---|
With eosin y In dimethyl sulfoxide at 20℃; for 24h; Schlenk technique; Irradiation; | 47% |
Conditions | Yield |
---|---|
With tris[2-phenylpyridinato-C2,N]iridium(III); potassium carbonate In dimethyl sulfoxide at 20℃; for 12h; Schlenk technique; Irradiation; Inert atmosphere; | 43% |
Conditions | Yield |
---|---|
With aluminium trichloride In dichloromethane at 30℃; for 12h; | A 20% B 40% |
osthole
Conditions | Yield |
---|---|
With bromine In dichloromethane at 0℃; | 34% |
With tetrachloromethane; bromine |
Conditions | Yield |
---|---|
Stage #1: osthole With water; sodium hydroxide at 20℃; Reflux; Stage #2: dimethyl sulfate In water at 20℃; for 3h; Reflux; Stage #3: With hydrogenchloride In water at 20℃; pH=2 - 3; | 31.25% |
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