Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap
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inquiry2,3,4,6-Tetra-O-Pivaloyl-α-D-Glucopyranosyl Bromide CAS 81058-27-7 Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/F
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inquiry2,3,4,6-Tetra-O-pivaloyl-alpha-D-glucopyranosyl bromide CAS NO.:81058-27-7 HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences
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inquiryhigh quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
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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
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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 according to the contract research and development services for the fine c
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inquiryProduct Description Product website: http://www.finerchem.com/pro01en/id/1061.html Product Name 2,3,4,6-Tetra-O-pivaloyl-alpha-D-glucopyranosyl bromide C
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inquiryOur advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
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inquiry2,3,4,6-TETRA-O-PIVALOYL-ALPHA-D-GLUCOPYRANOSYL BROMIDE CAS: 81058-27-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, speci
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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
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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
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inquiryProduct Name: 2,3,4,6-TETRA-O-PIVALOYL-ALPHA-D-GLUCOPYRANOSYL BROMIDE Synonyms: 2,3,4,6-TETRA-O-PIVALOYL-ALPHA-D-GLUCOPYRANOSYL BROMIDE;TETRAKIS(2,2-DIMETHYLPROPANOATE)-A-D-GLUCOPYRANOSYL BROMIDE;TETRA-O-PIVALOYL-ALPHA-D-GLUCOPYRANOSYL BROMIDE;2
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inquiryAppearance:white or light yellow crystalline powder Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:By
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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
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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inquiry1,2,3,4,6-penta-O-trimethylacetyl-β-D-glucopyranose
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With bismuth(III) bromide; trimethylsilyl bromide In dichloromethane at 20℃; for 24h; | 97% |
With hydrogen bromide In dichloromethane; acetic acid for 12h; | 64% |
With hydrogen bromide; acetic acid In dichloromethane at 5℃; for 12h; | 63% |
1,2,3,4,6-penta-O-pivaloyl-D-glucopyranoside
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With trimethylsilyl bromide; zinc dibromide In dichloromethane at 10 - 25℃; Temperature; Inert atmosphere; | 83% |
Stage #1: 1,2,3,4,6-penta-O-pivaloyl-D-glucopyranoside With zinc dibromide In dichloromethane at 20℃; for 0.166667h; Inert atmosphere; Stage #2: With sodium hydrogencarbonate In dichloromethane; water | |
Stage #1: 1,2,3,4,6-penta-O-pivaloyl-D-glucopyranoside With trimethylsilyl bromide; zinc dibromide In dichloromethane at 20℃; for 24h; Inert atmosphere; Stage #2: With sodium hydrogencarbonate In dichloromethane; water at 0℃; pH=7 - 8; |
1,2,3,4,6-penta-O-pivaloyl-D-glucopyranoside
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid In dichloromethane at 0 - 20℃; for 3h; | 70% |
With hydrogen bromide; acetic acid In dichloromethane Molecular sieve; |
pivaloyl chloride
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 73 percent / Et3N; DMAP / CH2Cl2 / 24 h / 20 °C 2: 97 percent / BiBr3; Me3SiBr / CH2Cl2 / 24 h / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: 74 percent / pyridine / CHCl3 / 120 h / Ambient temperature 2: 64 percent / 40percent HBr / CH2Cl2; acetic acid / 12 h View Scheme | |
Multi-step reaction with 2 steps 1: triethylamine / dmap / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 2: zinc dibromide / dichloromethane / 0.17 h / 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1.1: triethylamine / dmap / dichloromethane / 20.5 h / 0 - 20 °C / Inert atmosphere 2.1: trimethylsilyl bromide / zinc dibromide / dichloromethane / 24 h / 20 °C / Inert atmosphere 2.2: 0 °C / pH 7 - 8 View Scheme | |
Multi-step reaction with 2 steps 1: pyridine; dmap; thionyl chloride / dichloromethane / 2 h / 48 - 50 °C / Reflux; Large scale 2: zinc dibromide; trimethylsilyl bromide / dichloromethane / 10 - 25 °C / Inert atmosphere View Scheme |
alpha-D-glucopyranose
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: triethylamine / dmap / dichloromethane / 20.5 h / 0 - 20 °C / Inert atmosphere 2.1: trimethylsilyl bromide / zinc dibromide / dichloromethane / 24 h / 20 °C / Inert atmosphere 2.2: 0 °C / pH 7 - 8 View Scheme | |
Multi-step reaction with 2 steps 1: pyridine; dmap; thionyl chloride / dichloromethane / 2 h / 48 - 50 °C / Reflux; Large scale 2: zinc dibromide; trimethylsilyl bromide / dichloromethane / 10 - 25 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
In dichloromethane |
D-glucose
trimethylsilyl bromide
A
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
B
pivaloyl chloride
Conditions | Yield |
---|---|
In dichloromethane | |
In dichloromethane | |
In dichloromethane |
methyl-alpha-D-glucopyranoside
A
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
B
pivaloyl chloride
Conditions | Yield |
---|---|
With sodium bromide In dichloromethane |
D-glucose
A
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
B
pivaloyl chloride
Conditions | Yield |
---|---|
With sodium bromide In dichloromethane |
1-Tetradecanol
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
tetradecyl 2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranoside
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether | 97% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
3,4,6-tri-O-pivaloyl-D-glucal
Conditions | Yield |
---|---|
With acetic acid; zinc In tetrahydrofuran; water at 0 - 25℃; for 19.5h; | 97% |
With (2-) In water; N,N-dimethyl-formamide for 24h; pH 5.0; | 90% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether Koenigs-Knorr Glycosidation; Molecular sieve; | 97% |
With silver carbonate In diethyl ether Molecular sieve; | 97% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
(1R)-4-[(3R)-3-(2,2-dimethyl-1-oxopropyloxy)]-3,5,5-trimethylcyclohex-3-enol
2,2-Dimethyl-propionic acid (2R,3R,4S,5R,6R)-3,5-bis-(2,2-dimethyl-propionyloxy)-2-{(R)-4-[(R)-3-(2,2-dimethyl-propionyloxy)-butyl]-3,5,5-trimethyl-cyclohex-3-enyloxy}-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-4-yl ester
Conditions | Yield |
---|---|
With 4 A molecular sieve; silver trifluoromethanesulfonate; tetramethylurea In dichloromethane at 0 - 20℃; for 2.5h; | 96% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Acetic acid (R)-4-((S)-3-hydroxy-but-1-ynyl)-3,5,5-trimethyl-cyclohex-3-enyl ester
2,2-Dimethyl-propionic acid (2R,3R,4S,5R,6R)-2-[(S)-3-((R)-4-acetoxy-2,6,6-trimethyl-cyclohex-1-enyl)-1-methyl-prop-2-ynyloxy]-3,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-4-yl ester
Conditions | Yield |
---|---|
With 4 A molecular sieve; silver trifluoromethanesulfonate; tetramethylurea In dichloromethane at 0 - 20℃; for 2.5h; | 95% |
With silver trifluoromethanesulfonate; tetramethylurea | 72% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether Koenigs-Knorr Glycosidation; Molecular sieve; | 95% |
With silver carbonate In diethyl ether Molecular sieve; | 95% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether Koenigs-Knorr Glycosidation; | 94% |
With silver carbonate In diethyl ether Molecular sieve; | 94% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
phenol
Phenyl-2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranosid
Conditions | Yield |
---|---|
With silver(l) oxide In quinoline for 0.25h; Ambient temperature; | 93% |
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether at 20℃; Koenigs-Knorr Glycosidation; | 93% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
3-(2',4'-di(benzyloxy)phenyl)propanol
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether Koenigs-Knorr Glycosidation; Molecular sieve; | 93% |
With silver carbonate In diethyl ether for 4h; Molecular sieve; | 93% |
21-acetoxypregnenolone
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
(21-Acetoxy-20-oxo-5-pregnen-3β-yl)-2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranosid
Conditions | Yield |
---|---|
With molecular sieve; silver carbonate In diethyl ether for 20h; Ambient temperature; | 92% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 60℃; for 16h; Solvent; Reagent/catalyst; | 92% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether Koenigs-Knorr Glycosidation; Molecular sieve; | 92% |
With silver carbonate In diethyl ether Molecular sieve; | 92% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
C11H22F3NO3Si2
2,2-Dimethyl-propionic acid (2S,3S,4R,5R,6R)-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-2-[methoxycarbonyl-(2,2,2-trifluoro-acetylamino)-methyl]-tetrahydro-pyran-3-yl ester
Conditions | Yield |
---|---|
With zinc dibromide In 1,2-dichloro-ethane for 9h; Heating; | 91% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
(-)-(8R/S,15R)-8-Benzyloxy-15-hydroxyhexadecansaeure-benzylester
(-)-(8R/S,15R)-8-Benzyloxy-15-<2,3,4,6-tetrakis-O-(2,2-dimethylpropanoyl)-β-D-glucopyranosyloxy>hexadecansaeure-benzylester
Conditions | Yield |
---|---|
With 3 A molecular sieve; silver carbonate In diethyl ether for 4h; Ambient temperature; | 89% |
1-Decanol
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
decyl 2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranoside
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether | 89% |
tigogenin
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
<(25R)-5α-Spirostan-3β-yl>-2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranosid
Conditions | Yield |
---|---|
With molecular sieve; silver carbonate In diethyl ether for 24h; Ambient temperature; | 88% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
(R)-1-O-p-methoxybenzyloctadec-17-ene-1,3-diol
(3R)-1-O-(p-methoxybenzyl)-3-(2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranosyl)octadec-17-ene-1,3-diol
Conditions | Yield |
---|---|
With 2,6-di-tert-butyl-pyridine; silver trifluoromethanesulfonate In dichloromethane at -40 - -20℃; for 1.5h; | 88% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether at 20℃; Koenigs-Knorr Glycosidation; | 88% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
(1R)-4-[(3R)-3-hydroxybutyl]-3,5,5-trimethylcyclohex-3-enyl
2,2-Dimethyl-propionic acid (2R,3R,4S,5R,6R)-2-[(R)-3-((R)-4-acetoxy-2,6,6-trimethyl-cyclohex-1-enyl)-1-methyl-propoxy]-3,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-4-yl ester
Conditions | Yield |
---|---|
With 4 A molecular sieve; silver trifluoromethanesulfonate; tetramethylurea In dichloromethane at 0 - 20℃; for 2.5h; | 87% |
(2-(4-fluorophenyl)-5-[(5-iodo-2-methylphenyl)methyl]thiophene)
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
(2S,3S,4R,5R,6R)-2-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-6-(pivaloyloxymethyl)tetrahydro-2H-pyran-3,4,5-thiyl tris(2,2-dimethylpropanoate)
Conditions | Yield |
---|---|
Stage #1: (2-(4-fluorophenyl)-5-[(5-iodo-2-methylphenyl)methyl]thiophene) With n-butyllithium; zinc dibromide In n-heptane; dibutyl ether; toluene at -10 - 25℃; for 2.5h; Inert atmosphere; Stage #2: 2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide In n-heptane; dibutyl ether; toluene at 95℃; for 6.5h; Product distribution / selectivity; | 86.6% |
Stage #1: (2-(4-fluorophenyl)-5-[(5-iodo-2-methylphenyl)methyl]thiophene) With TurboGrignard In tetrahydrofuran at 0 - 10℃; for 1h; Large scale; Stage #2: 2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide In tetrahydrofuran at 0 - 10℃; for 3h; Large scale; | 85% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With 4 A molecular sieve; silver carbonate In diethyl ether for 24h; Ambient temperature; | 86% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
benzyl alcohol
A
benzyl 2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranoside
B
1,2-O-(1-Benzyloxyneopentyliden)-3,4,6-tri-O-pivaloyl-α-D-glucopyranose
Conditions | Yield |
---|---|
With silver(II) oxide In diethyl ether for 5h; Ambient temperature; | A 86% B 1.3% |
1-dodecyl alcohol
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
dodecyl 2,3,4,6-tetra-O-pivaloyl-β-D-glucopyranoside
Conditions | Yield |
---|---|
With silver carbonate In diethyl ether | 85% |
4,5-dihydroblumenol A
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
2,2-Dimethyl-propionic acid (2R,3R,4S,5R,6R)-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-2-[(E)-(S)-3-((R)-1-hydroxy-2,6,6-trimethyl-4-oxo-cyclohex-2-enyl)-1-methyl-allyloxy]-tetrahydro-pyran-3-yl ester
Conditions | Yield |
---|---|
With silver trifluoromethanesulfonate; tetramethylurea In dichloromethane at 0 - 20℃; for 1.83333h; | 85% |
5-methyl-1-(propan-2-yl)-4-[4-(propan-2-yloxy)benzyl]-1,2-dihydro-3H-pyrazol-3-one
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
Conditions | Yield |
---|---|
With caesium carbonate In isopropyl alcohol; acetonitrile at 50℃; for 3h; Reagent/catalyst; Solvent; | 85% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
di-4-methoxyphenylzinc
2,3,4,6-tetra-O-pivaloyl 1-(2-anisyl)-1-deoxy-β-D-glucopyranose
Conditions | Yield |
---|---|
In dibutyl ether; toluene at 90℃; | 85% |
With bis(pentafluorophenyl)zinc In (2)H8-toluene at 25℃; for 2h; Schlenk technique; Inert atmosphere; diastereoselective reaction; | 99 %Spectr. |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
methyl L-fucopyranoside
methyl 3-O-(2’,3’,4’,6’-tetra-O-pivaloyl-β-D-glucopyranosyl)-α-L-fucopyranoside
Conditions | Yield |
---|---|
With [2-(1-methyl-1H-imidazol-2-yl)phenyl]boronic acid; silver(l) oxide In acetonitrile at 30℃; for 24h; Koenigs-Knorr Glycosidation; Inert atmosphere; regioselective reaction; | 84% |
With diphenylborate ethanolamine ester; silver(l) oxide In acetonitrile at 23℃; for 16h; Koenigs-Knorr synthesis; Inert atmosphere; regioselective reaction; | 81% |
Stage #1: methyl L-fucopyranoside With diphenyltin(IV) dichloride In acetonitrile at 20℃; for 0.166667h; Stage #2: 2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide With 5,5'-dimethyl-2,2'-bipyridine; silver(l) oxide In acetonitrile at 20 - 60℃; for 24h; Koenigs-Knorr Glycosidation; stereoselective reaction; | 65% |
2,3,4,6-tetra-O-pivaloyl-α-D-glucopyranosyl bromide
2,3,4,6-tetra-O-pivaloyl-1,5-anhydro-D-arabino-hex-enitol
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane for 4h; Ambient temperature; | 83% |
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