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:102-24-9
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
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
Cas:102-24-9
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryGood quantity Trimethoxyboroxine Basic information Product Name: Trimethoxyboroxine Synonyms: TRIMETHOXYBOROXINE;TRIMETHOXYBOROXOLE;TRIMETHOXYCYCLOTRIBOROXANE;TRIMETHOXY-1,3,5,2,4,6-TR
Cas:102-24-9
Min.Order:1 Metric Ton
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:102-24-9
Min.Order:1 Kilogram
FOB Price: $1.0 / 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:102-24-9
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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:102-24-9
Min.Order:1 Kilogram
Negotiable
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
Cas:102-24-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:102-24-9
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
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
Cas:102-24-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySuperior quality Appearance:Clear colorless liquid 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:Used as Pharmaceutical Intermediates Transporta
Zhenyu 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:102-24-9
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands
high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
high 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
1. 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? We can also provide MT1 peptide powder2.
TrimethoxyboroxineAppearance:detailed see specifications Storage:Keep away of light, cool place Package:25kg/drum;200kg/drum Application:Used in Synthesis, Pharmaceuticals and other fields Transportation:Sea/air/courier
We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:Powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as primary and sec
Trimethoxyboroxine cas 102-24-9Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:102-24-9
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryHenan Sunlake Enterprise Corporation Our Advantages 1, Any inquiry about ch
Changzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa
Price, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right
Profile Hebei Ruishun Trade Co.LTD, registered capital of $1 million ,have a production of pharmaceutical raw materials, pharmaceutical raw materials factory reagent r&d center,Seek development by credit reputation. Our products have a large
Yinghao Pharm products include: leader molecule, heterocyclic compounds,chiral compounds, photoelectric materials, biochemical reagents etc. For example:benzene, pyrimidine, boricacid,pyridine, pyrazole, imidazole, pyrrole, fluorine and other derivat
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 12h; Schlenk technique; Inert atmosphere; | 87% |
Conditions | Yield |
---|---|
With sodium tetrahydroborate In tetrahydrofuran for 12h; Reagent/catalyst; Schlenk technique; Inert atmosphere; | 83% |
dimethylsulfide borane complex
carbon dioxide
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
With C27H53BN2P2 at 60℃; under 3800.26 Torr; for 11h; Reagent/catalyst; Inert atmosphere; | 80% |
carbon dioxide
dimethylsulfide borane complex
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
With C39H45N2(1+)*CHO2(1-)*BH3O3 In benzene-d6 at 20℃; under 760.051 Torr; for 6h; | 67% |
With C24H18BO2P at 70℃; under 760.051 Torr; for 1h; Catalytic behavior; Reagent/catalyst; Inert atmosphere; | |
With N,N,N',N'-tetramethyl-1,8-diaminonaphthalene In benzene-d6 at 80℃; under 760.051 Torr; for 21h; Catalytic behavior; Reagent/catalyst; Temperature; Time; Solvent; Sealed tube; | > 99 %Spectr. |
Conditions | Yield |
---|---|
With boron trioxide | |
With boric acid |
Conditions | Yield |
---|---|
at 250℃; | |
at 250℃; | |
250°C, 10 h, in sealed tube; | |
In neat (no solvent) decompn. on heating or by Lewis-acid catalysis;; |
Trimethyl borate
water
A
methanol
B
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
In methanol controlled partial hydrolysis; addn. of 2-methyl pentane, removal of CH3OH/2-methyl pentane azeotrope by distn.;; |
Conditions | Yield |
---|---|
In tetrahydrofuran byproducts: H2; reduction at 0°C;; | |
In tetrahydrofuran byproducts: H2; reduction at 0°C;; |
Conditions | Yield |
---|---|
In tetrahydrofuran byproducts: H2; reduction at 0°C;; |
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: H3BO3; generation of B(OCH3)3 from CH3OH and B2O3, filtration of H3BO3, addn. of B2O3;; | |
In neat (no solvent) byproducts: H2O; separation of H2O as azeotrope with CCl4;; | |
In neat (no solvent) byproducts: H3BO3; generation of B(OCH3)3 from CH3OH and B2O3, filtration of H3BO3, addn. of B2O3;; |
Conditions | Yield |
---|---|
In hexane byproducts: CH3OH; hydroylsis in hexane, azeotropic distn. of hexane/CH3OH-mixture;; | |
In neat (no solvent) partial hydroysis of 114ml B(OCH3)3 with 17ml H2O by refluxing, addn. of 2.4-dimethyl butane, distn. of dimethyl butane/CH3OH azeotrope after 6h;; | |
In hexane byproducts: CH3OH; hydroylsis in hexane, azeotropic distn. of hexane/CH3OH-mixture;; |
methanol
Trimethyl borate
boric acid
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
In neat (no solvent) 3mol B(OCH3)3, 3mol methanol, 6mol H3BO3; heating;; |
methanol
Trimethyl borate
boric acid
A
metaboric acid
B
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
In methanol byproducts: H2O; at 100°C, filtration of metaboric acid;; |
boron tribromide
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: CH3Br; | |
In neat (no solvent) byproducts: CH3Br; |
carbon dioxide
dimethylsulfide borane complex
A
Trimethyl borate
B
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
With C43H44BClN2P2 In benzene-d6 at 80℃; under 750.075 Torr; for 2h; Catalytic behavior; Reagent/catalyst; | A 8 %Spectr. B 91 %Spectr. |
With C29H35B2LiOP2S2 In tetrahydrofuran at 80℃; under 750.075 Torr; for 4h; Catalytic behavior; Reagent/catalyst; Time; Temperature; Schlenk technique; | |
With diisopropyl-carbodiimide In benzene-d6 at 25℃; under 760.051 Torr; for 24h; Catalytic behavior; Reagent/catalyst; Temperature; Glovebox; Inert atmosphere; Schlenk technique; |
Conditions | Yield |
---|---|
byproducts: HCl, ClCOCl; at room temp.;; | A n/a B 96% |
cyclotriboric acid trimethyl ester
methyl 6-amino-3-bromo-pyridine-2-carboxylate
6-amino-3-methyl-pyridine-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With potassium carbonate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 In 1,4-dioxane at 115℃; for 4h; Inert atmosphere; | 88% |
cyclotriboric acid trimethyl ester
[(2,6-(Me2NCH2)2C6H3)SbO]2
Conditions | Yield |
---|---|
In benzene at 20℃; for 12h; | 82% |
cyclotriboric acid trimethyl ester
2-bromo-8-methylnaphthalene
8-methylnaphthalene-2-boronic acid
Conditions | Yield |
---|---|
Stage #1: 2-bromo-8-methylnaphthalene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Stage #2: cyclotriboric acid trimethyl ester In tetrahydrofuran; hexane at -78 - 20℃; for 3.5h; | 77% |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 75% |
cyclotriboric acid trimethyl ester
2-chlorophenylhydroxamic acid
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 73% |
Trimethyl borate
cyclotriboric acid trimethyl ester
A
methanol
B
boric acid
Conditions | Yield |
---|---|
With water | A 72.5% B n/a |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 72% |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 70% |
cyclotriboric acid trimethyl ester
4-methoxybenzohydroxamic acid
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 70% |
cyclotriboric acid trimethyl ester
(2,6-(Me2NCH2)2C6H3)(Ph)SnCO3
Conditions | Yield |
---|---|
at 20℃; for 12h; | 70% |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 68% |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 68% |
triisobutylborane
cyclotriboric acid trimethyl ester
Triisobutyl-boroxin
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: B(OCH3)3; heating equimolar amounts of educts (131-207°C), removal of generated B(OCH3)3 by distn. in the course of the react.;; 2fold distn.;; | 64% |
cyclotriboric acid trimethyl ester
phenylmagnesium bromide
A
methanol
B
diphenylborinic acid
Conditions | Yield |
---|---|
With water byproducts: BrMgOH; | A n/a B 62% |
With H2O byproducts: BrMgOH; | A n/a B 62% |
cyclotriboric acid trimethyl ester
1-naphthylmagnesiumbromide
A
methanol
B
bis(1-naphthyl)borinic acid
Conditions | Yield |
---|---|
With water byproducts: BrMgOH; | A n/a B 62% |
With H2O byproducts: BrMgOH; | A n/a B 62% |
cyclotriboric acid trimethyl ester
2-nitrobenzohydroxamic acid
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 61% |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 60% |
Conditions | Yield |
---|---|
In ethanol; water byproducts: CH3OH; added 80% aq. ethanol to a mixture of compounds; refluxed for 6 h; solvent evapd.; recrystd. from 80% aq. ethanol; elem. anal.; | 60% |
cyclotriboric acid trimethyl ester
Conditions | Yield |
---|---|
In benzene byproducts: methanol; addn. of boroxine soln. in benzene to the hot soln. of Ni-chelate in benzene, 30 min boiling; concn., filtration, recrystn. from benzene, elem. anal.; | 49% |
tri(sec-butyl)borane
cyclotriboric acid trimethyl ester
A
tri-n-butylboroxine
B
{B(s-C4H9)O}3
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: B(OCH3)3; heating equimolar amounts of educts (149-197°C) for 1h, removal of generated B(OCH3)3 in the course of react.;; isomeric mixture after distn. in vac. (isomerization); pure (B(s-C4H9)O)3 after redistn. of the first fraction;; | A n/a B 35% |
cyclotriboric acid trimethyl ester
(4-chlorphenyl)magnesium bromide
A
methanol
B
di-(p-chlorophenyl)borinic acid
Conditions | Yield |
---|---|
With water byproducts: BrMgOH; | A n/a B 22% |
With H2O byproducts: BrMgOH; | A n/a B 22% |
cyclotriboric acid trimethyl ester
methyllithium
A
trimethylborane
B
methoxy-dimethyl-borane
C
bis(methoxy)methylborane
Conditions | Yield |
---|---|
With hydrogenchloride In diethyl ether under N2; to cold (-78 °C) soln. of boron compd. in Et2O slowly added MeLi, stirred for 0.5 h, warmed to room temp., stirred for 0.5 h,Li(BMe4) detected by (11)B NMR, cooled to 0 °C, added soln. of HCl in Et2O, stirred for 15 min, warmed; not isolated, monitored by (11)B NMR; | A 20% B <1 C <1 |
ortho-tolylmagnesium bromide
cyclotriboric acid trimethyl ester
bis(2-methylphenyl)borinic acid
Conditions | Yield |
---|---|
Isolierung als 2-o-tolyl-boryloxy>-aethylamin; |
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