1.In No Less 10 years exporting experience. you 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 Specializ
Cas:1621-61-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:1621-61-0
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryShandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W
Cas:1621-61-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHigh quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
Cas:1621-61-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
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 Scientif
Cas:1621-61-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou
Cas:1621-61-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents
Cas:1621-61-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryhome-produced Application:medicine
Cas:1621-61-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryShanghai, Run-Biotech Co., Ltd is a leading domestic pharmaceutical, biopharmaceutical, and health care products R & D outsourcing services company. As an innovation-driven and customer-focused company, Run Biotech provides a broad and integrated por
Cas:1621-61-0
Min.Order:0
Negotiable
Type:Trading Company
inquiryThe company have effective management team, professional technical R & D personnel, the service spirit of customer oriented. We have long-term cooperation with famous domestic manufacturer, and excellent customer resources overseas. We are skilled in
Cas:1621-61-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryCas:1621-61-0
Min.Order:0
Negotiable
Type:Trading Company
inquiry7,3',4'-trimethoxyflavanone
cabreuvin
Conditions | Yield |
---|---|
With thallium(III) toluene-p-sulfonate In acetonitrile for 2h; Heating; | 94% |
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In methanol; hexane for 16h; Ambient temperature; | 90% |
Conditions | Yield |
---|---|
With copper(I) bromide In methanol; N,N-dimethyl-formamide at 20 - 120℃; for 2h; Darkness; | 70% |
3-bromo-7-methoxy-4H-chromen-4-one
tri-n-butyl(3,4-dimethoxyphenyl)stannane
cabreuvin
Conditions | Yield |
---|---|
With 4,4’‐bis(trimethylammoniummethyl)‐2,2’‐bipyridine; diamminedichloropalladium(II); tetrabutyl ammonium fluoride; sodium hydrogencarbonate In water at 120℃; for 24h; Stille Cross Coupling; Sealed tube; Green chemistry; | 52% |
Conditions | Yield |
---|---|
Stage #1: 3',4',7-trihydroxyisoflavone With potassium carbonate In acetone at 20℃; for 0.166667h; Stage #2: methyl iodide In acetone for 24h; Reflux; | 52% |
2-(3,4-dimethoxyphenyl)-1-(2-hydroxy-4-methoxyphenyl)-ethanone
Methyl formate
cabreuvin
Conditions | Yield |
---|---|
With sodium |
Conditions | Yield |
---|---|
With potassium carbonate; acetone |
2-(3,4-dimethoxyphenyl)-1-(2-hydroxy-4-methoxyphenyl)-ethanone
formic acid ethyl ester
cabreuvin
Conditions | Yield |
---|---|
With sodium |
7,3',4'-Trimethoxyisoflavanone
cabreuvin
Conditions | Yield |
---|---|
With palladium on activated charcoal at 240℃; | |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone |
Conditions | Yield |
---|---|
With potassium carbonate In acetone Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 86 percent / KOH / methanol / 24 h / 20 °C 2: 82 percent / pyridine / methanol; H2O / 12 h / Heating 3: 94 percent / thallium(III) p-tosylate / acetonitrile / 2 h / Heating View Scheme |
2'-hydroxy-3,4,4'-trimethoxychalcone
cabreuvin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 82 percent / pyridine / methanol; H2O / 12 h / Heating 2: 94 percent / thallium(III) p-tosylate / acetonitrile / 2 h / Heating View Scheme |
3-(3,4-dimethoxyphenyl)-4-hydroxy-7-methoxy-2H-chromen-2-one
cabreuvin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) B2H6, 2.) Cr6 2: 2,3-dichloro 5,6-dicyano benzoquinone (D.D.Q.) View Scheme |
1-(2,4-dihydroxyphenyl)-2-(3,4-dimethoxyphenyl)ethan-1-one
cabreuvin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diethyl ether; hydrogen chloride / Erhitzen des Reaktionsprodukts mit Wasser 2: potassium carbonate; acetone View Scheme | |
Multi-step reaction with 2 steps 2: sodium View Scheme | |
Multi-step reaction with 2 steps 2: sodium View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: bromine / dichloromethane / 0.5 h / 20 °C 2: copper(I) bromide / methanol; N,N-dimethyl-formamide / 2 h / 20 - 120 °C / Darkness View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium carbonate / acetone / 12 h / 60 °C 2: bromine / dichloromethane / 0.5 h / 20 °C 3: copper(I) bromide / methanol; N,N-dimethyl-formamide / 2 h / 20 - 120 °C / Darkness View Scheme |
Conditions | Yield |
---|---|
With aluminum (III) chloride; dimethylsulfide In dichloromethane at 5 - 20℃; for 6h; | 95% |
With hydrogen iodide; acetic anhydride |
4-amino-N-(diaminomethylene) benzenesulfonamide
cabreuvin
4-(2-Hydroxy-4-methoxyphenyl)-5-(3,4-dimethoxyphenyl)-2-(4-aminobenzenesulphonylamino)pyrimidine
Conditions | Yield |
---|---|
With potassium carbonate In dimethyl sulfoxide at 100℃; for 2h; | 91% |
Conditions | Yield |
---|---|
With aluminium trichloride; nitrobenzene | |
With hydrogen iodide; acetic anhydride |
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