Strengths: stable supply superior quality advanced technology sufficient stock legal /safety production competitive price Appearance:brown powder Storage:cool and dry place avoiding sunlight directly Package:25kg/drum, double-la
Cas:568-72-9
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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:568-72-9
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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
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:568-72-9
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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
Cas:568-72-9
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inquirySpecifications CAS No.: 568-72-9 Other Names: Tanshinone IIA MF: C19H18O3 EINECS No.: 568-72-9 Place of Origin: Shaanxi, China (Main
Cas:568-72-9
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inquiryUnique advantages of Tanshinone IIA Cas 568-72-9 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Red powder Storage:Cool dry place Package:10g,100g,1kg/foil bag Appl
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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:568-72-9
Min.Order:1 Gram
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inquiryTanshinone IIA CAS: 568-72-9 Molecular Formula: C19H18O3 Home Product Category other other 568-72-9 568-72-9 - Names and Identifiers Name Tanshinone IIA Synonyms NSC 686518 tanshiones Tanshinone B Tanshino
Cas:568-72-9
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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:568-72-9
Min.Order:1 Kilogram
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inquiryName:Tanshinone IIA CAS NO:568-72-9 Grade:Medical, scientific research and export Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability Product Tec
Cas:568-72-9
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:568-72-9
Min.Order:1 Kilogram
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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:568-72-9
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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
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Type:Trading Company
inquiry1.More than 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 Sp
Cas:568-72-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryQuick Details Type: Tanshinone Extract Form: Powder Part: Root Extraction Type: Solvent Extraction Packa
Cas:568-72-9
Min.Order:1 Kilogram
FOB Price: $30.0
Type:Trading Company
inquiryAbout Product Details Items Specifications Test Results Appearance White to white crystalline powde
Cas:568-72-9
Min.Order:1 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiryTanshinone IIA CAS:568-72-9 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 intermediate
Cas:568-72-9
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
Price, service, company and transport advantage: 1.place of origin china with super quality by reasonable price. 2. it's customers' right to choose the package (ems, dhl, fedex, ups); 3. it's custo
Henan 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
Trade Assurance Get full protection for your orders 100% Product quality protection 100% On-time shipment protection 100% Payment protection Appearance:brownish red dry powder Storage:2 years if properly stored Package:25 kgs/ fiber drum or accord
Cas:568-72-9
Min.Order:25 Kilogram
FOB Price: $158.0
Type:Lab/Research institutions
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
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
Cas:568-72-9
Min.Order:0 Metric Ton
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Type:Lab/Research institutions
inquirySalvia Miltiorrhiza Extract Product Name:Danshen Extract Powder Botanical Source:Salvia miltiorrhiza Bge Odor:Characteristic Use Part:Root Test Method:HPLC Particle Size:98% Pass through 80 mesh Extract Method:Water/Ethanol Specification of
Cas:568-72-9
Min.Order:1 Kilogram
FOB Price: $8.0
Type:Trading Company
inquirysuperior quality moderate price & quick delivery Appearance:Orange powder 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:antineoplastic, bo
Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
J&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
(+/-)-cryptotanshinone
tanshinone IIA
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In benzene at 20℃; | 95% |
Cryptotanshinone
tanshinone IIA
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In benzene at 25℃; for 42h; | 91% |
tanshinone IIA
Conditions | Yield |
---|---|
With palladium on activated charcoal; hydrogen In tetrahydrofuran | 40% |
tanshinone IIA
Conditions | Yield |
---|---|
With sodium In tetrahydrofuran at 50℃; for 1h; Inert atmosphere; | 40% |
6,6-dimethyl-1-vinylcyclohex-1-ene
4,5-dihydro-3-methylbenzo[1,2-b]furan-4,5-dione
A
tanshinone IIA
B
3,8,8-Trimethyl-8,9,10,11-tetrahydro-phenanthro[4,3-b]furan-4,5-dione
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone 1) neat, ultrasound, 45 deg C, 2h, (or benzene, 12h, reflux), 2) benzene, 12h, reflux; Yield given. Multistep reaction. Yields of byproduct given; | |
Yield given. Multistep reaction. Yields of byproduct given; | |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone 1) benzene, reflux, 12h, (or ultrasonification, 45 deg C, 2h), 2) benzene, 12h, reflux; Yield given. Multistep reaction. Yields of byproduct given; |
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1: 1.) n-BuLi, TMEDA / 1.) hexane, 45 deg C, 30 min, 2.) THF, 55-60 deg C, 20 h 2: 97 percent / AlCl3 / CH2Cl2 / 0.25 h / 0 °C 3: 95 percent / BBr3 / CH2Cl2 / 4 h / -78 - 25 °C 4: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 5: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 6: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 7: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 8: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 9: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 10: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1: 93 percent / PdCl2(dppf) / tetrahydrofuran / 15 h / Heating 2: 97 percent / AlCl3 / CH2Cl2 / 0.25 h / 0 °C 3: 95 percent / BBr3 / CH2Cl2 / 4 h / -78 - 25 °C 4: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 5: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 6: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 7: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 8: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 9: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 10: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
5,5-dimethyl-5,6,7,8-tetrahydronaphthalen-1-ol
tanshinone IIA
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 2: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 3: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 4: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 5: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 6: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 7: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
1,1-dimethyl-5-methoxytetralin
tanshinone IIA
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 95 percent / BBr3 / CH2Cl2 / 4 h / -78 - 25 °C 2: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 3: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 4: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 5: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 6: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 7: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 8: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1: 1.) n-BuLi, TMEDA / 1.) hexane, 45 deg C, 30 min, 2.) THF, 55-60 deg C, 20 h 2: 97 percent / AlCl3 / CH2Cl2 / 0.25 h / 0 °C 3: 95 percent / BBr3 / CH2Cl2 / 4 h / -78 - 25 °C 4: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 5: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 6: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 7: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 8: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 9: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 10: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
tanshinone IIA
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1: 93 percent / PdCl2(dppf) / tetrahydrofuran / 15 h / Heating 2: 97 percent / AlCl3 / CH2Cl2 / 0.25 h / 0 °C 3: 95 percent / BBr3 / CH2Cl2 / 4 h / -78 - 25 °C 4: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 5: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 6: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 7: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 8: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 9: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 10: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
5,6,7,8-tetrahydro-3-hydroxy-2-[(1R)-2-hydroxy-1-methylethyl]-8,8-dimethyl-1,4-phenanthrenedione
tanshinone IIA
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 2: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
1,1-dimethyl-5-tetralyl trifluoromethanesulfonate
tanshinone IIA
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 2: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 3: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 4: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 5: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 6: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
3-((S)-1-((tert-butyldimethylsilyl)oxy)-2-propyl)-7,7-dimethyl-4-hydroxy-2-((triisopropylsilyl)oxy)-7,8,9,10-tetrahydrophenanthrene
tanshinone IIA
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C 2: 100 percent / conc. H2SO4 / ethanol / 0.75 h / 25 °C 3: 91 percent / DDQ / benzene / 42 h / 25 °C View Scheme |
tanshinone IIA
N,N-dimethyl-formamide
Conditions | Yield |
---|---|
With trichlorophosphate at 20℃; for 2h; | 100% |
With trichlorophosphate at 20℃; for 2.5h; Vilsmeier-Haack Formylation; | 97.3% |
With trichlorophosphate at 70 - 80℃; for 2h; | 67% |
tanshinone IIA
Conditions | Yield |
---|---|
With potassium iodate; acetic acid; potassium iodide In water at 80℃; for 1h; | 98.99% |
With N-iodo-succinimide; acetic acid In dichloromethane at -40℃; for 6h; |
tanshinone IIA
Conditions | Yield |
---|---|
With sodium hydrogen sulfate; acetic anhydride; 1,4,7,10-tetraoxa-15-azacyclopentadecane at 20℃; for 1h; Reagent/catalyst; Temperature; Green chemistry; | 96% |
Stage #1: tanshinone-IIA With sulfur trioxide-N,N-dimethylformamide complex In N,N-dimethyl-formamide at 100℃; Stage #2: With sodium hydroxide In ethanol; water pH=7.5 - 9; Reagent/catalyst; Solvent; Temperature; | 93% |
Stage #1: tanshinone-IIA With sulfuric acid; acetic anhydride; acetic acid In dichloromethane at 25℃; for 0.0666667h; Stage #2: With sodium chloride In dichloromethane; water; Petroleum ether for 0.0833333h; Temperature; | 72.6% |
Stage #1: tanshinone-IIA With sulfuric acid; acetic anhydride; acetic acid at 25℃; Stage #2: With sodium chloride In water Product distribution / selectivity; | |
Stage #1: tanshinone-IIA With sulfuric acid; acetic anhydride; acetic acid In dichloromethane Flow reactor; Heating; Stage #2: With sodium chloride |
tanshinone IIA
benzoic acid
1,6,6-trimethyl-10,11-dioxo-6,7,8,9,10,11-hexahydrophenanthro[1,2-b]furan-9-yl benzoate
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 95% |
tanshinone IIA
methyl trifluoromethanesulfonate
10,11-Dimethoxy-1,6,6-trimethyl-6,7,8,9-tetrahydro-phenanthro[1,2-b]furan
Conditions | Yield |
---|---|
Stage #1: tanshinone-IIA In tetrahydrofuran at -30℃; for 0.0833333h; Stage #2: methyl trifluoromethanesulfonate In tetrahydrofuran for 0.5h; | 95% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 92% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 92% |
tanshinone IIA
propionic acid
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Reagent/catalyst; Solvent; Sealed tube; regioselective reaction; | 91% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 90% |
tanshinone IIA
2-Methoxybenzoic acid
1,6,6-trimethyl-10,11-dioxo-6,7,8,9,10,11-hexahydrophenanthro[1,2-b]furan-9-yl 2-methoxybenzoate
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 90% |
tanshinone IIA
acetic anhydride
10,11-Diacetoxy-1,6,6-trimethyl-6,7,8,9-tetrahydro-phenanthro[1,2-b]furan
Conditions | Yield |
---|---|
Stage #1: tanshinone-IIA With palladium 10% on activated carbon; hydrogen In tetrahydrofuran at 15 - 25℃; Stage #2: acetic anhydride With pyridine In tetrahydrofuran at 15 - 25℃; for 3h; | 90% |
formaldehyd
4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate hydrochloride
tanshinone IIA
Conditions | Yield |
---|---|
With zinc diacetate In dimethyl sulfoxide at 60℃; for 24h; | 89% |
Conditions | Yield |
---|---|
With zinc diacetate; acetic acid In chloroform Reflux; Inert atmosphere; | 89% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 88% |
tanshinone IIA
6,7,8,9-tetrahydro-1,6,6-trimethylfuronaphth<2,1-e>oxepine-10,12-dione
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen; acetic acid In water; benzene at 25℃; for 8h; | 86% |
With sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid In dichloromethane at 20℃; for 1h; | 21% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical at 120℃; for 24h; Sealed tube; regioselective reaction; | 85% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In toluene at 120℃; for 48h; Sealed tube; | 85% |
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In toluene at 120℃; for 48h; | 85% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 81% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In acetonitrile at 50℃; for 72h; | 81% |
Conditions | Yield |
---|---|
With dmap; iron In tetrahydrofuran for 6h; Reflux; Inert atmosphere; | 81% |
tanshinone IIA
2-bromo-10,11-dioxo-1,6,6-trimethyl-6,7,8,9,10,11-hexahydro-phenanthro[1,2-b]furan
Conditions | Yield |
---|---|
With bromine; acetic acid at 20℃; for 4h; | 80% |
With bromine In tetrachloromethane at 20℃; for 0.333333h; | |
With N-Bromosuccinimide; acetic acid at 20℃; for 6h; | |
With hydrogen bromide; bromine In dichloromethane at 20℃; for 0.5h; Darkness; |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 80% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 24h; Sealed tube; regioselective reaction; | 80% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In toluene at 120℃; for 48h; | 80% |
Conditions | Yield |
---|---|
With zirconium(IV) chloride In dichloromethane Reflux; | 79% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In acetonitrile at 50℃; for 72h; | 79% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In chlorobenzene at 120℃; for 36h; Reagent/catalyst; Solvent; Sealed tube; regioselective reaction; | 78% |
tanshinone IIA
Conditions | Yield |
---|---|
With Selectfluor In water; acetonitrile at 80℃; for 12h; Reagent/catalyst; Solvent; Sealed tube; | 77% |
With Selectfluor In water; acetonitrile at 80℃; for 12h; | 77% |
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