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
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inquiryOur 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:87-92-3
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Type:Manufacturers
inquiryHigh Quality Best price Fast Delivery Good Service Welcome to Henan Tianfu Chemical Co., Ltd. website. Our company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; developm
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
Cas:87-92-3
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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:87-92-3
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inquiry1.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:87-92-3
Min.Order:1 Gram
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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
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inquirysuperior quality Appearance:CLEAR COLOURLESS TO YELLOWISH LIQUID AFTER MELTING 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 Pharmaceuti
Cas:87-92-3
Min.Order:1 Kilogram
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Type:Trading Company
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:87-92-3
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryhigh 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
bulk productiongoods in stockswe have the best competitive price in the marketmeantime,we are committed to service to our every customer Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical
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inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquiryWe are committed to providing our customers with the best products and services at the most competitive prices.Appearance:off-white powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as prima
Dibutyl L-(+)-tartrate cas 87-92-3Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquiryOur mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical
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Cas:87-92-3
Min.Order:10 Milligram
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inquiryPrice, 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
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inquiryfactory,reasonable price Appearance:detailed see specifications Storage:Store in dry, dark and ventilated place. Package:according to the clients requirement Application:pharmaceutical intermediates Transportation:by courier,air or sea Port:S
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inquiryR & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
Cas:87-92-3
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inquiryAt Capot,We can synthesize and purify your complex molecules from 100 gram to 10 tons.Appearance:Clear colorless to light yellow liquid Storage:Dry,Seal and Cool place Package:1G,5G,10G,25G,100G,250G,500G,1KG,5KG,10KG,25KG,50KG,100KG,150KG,200KG. App
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Cas:87-92-3
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inquiryDebyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen
Cas:87-92-3
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inquiryhigh purity Application:Drug intermediates Materials intermediates and active molecules
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inquiryConditions | Yield |
---|---|
With H+ resin; Zerolit 225 In benzene for 8h; Heating; | 68% |
With thionyl chloride |
Conditions | Yield |
---|---|
durch Destillation; |
dibenzyl (2R,3R)-2,3-dihydroxybutanedioate
butan-1-ol
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
In various solvent(s) at 39℃; for 24h; lipase from Pseudomonas fluorescens; | 86.2 % Spectr. |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
With boric acid; potassium hydrogencarbonate In water at 20℃; Heating; | 100% |
(+)-(2R,3R)-dibutyl tartrate
chloroacetyl chloride
(2R,3R)-2,3-Bis-(2-chloro-acetoxy)-succinic acid dibutyl ester
Conditions | Yield |
---|---|
With pyridine In chloroform for 5h; Ambient temperature; | 84.6% |
(+)-(2R,3R)-dibutyl tartrate
Dibenzyl N,N-diisopropylphosphoramidite
dibutyl-2,3-bis(dibenzylphospho)-L-tartrate
Conditions | Yield |
---|---|
Stage #1: (+)-(2R,3R)-dibutyl tartrate; Dibenzyl N,N-diisopropylphosphoramidite With 1H-tetrazole at 20℃; for 24h; Stage #2: With 3-chloro-benzenecarboperoxoic acid at -40 - 20℃; for 12h; | 84% |
(+)-(2R,3R)-dibutyl tartrate
6-methoxy-2-propionylnaphthalene
(4R,5R)-2-ethyl-2-(6-methoxy-2-naphthyl)-1,3-dioxolane-4,5-dicarboxylic acid di-n-butyl ester
Conditions | Yield |
---|---|
With methanesulfonic acid; Tributyl orthoformate at 100℃; for 1h; | 80% |
Conditions | Yield |
---|---|
In diethyl ether; dichloromethane elem. anal.; | 76% |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
With pyridine; phosphorus trichloride In diethyl ether at 0℃; for 6h; | 54% |
Conditions | Yield |
---|---|
With sodium periodate In water for 40h; | 50% |
With sodium periodate | |
With lead(IV) acetate; benzene | |
With sodium periodate In water; isopropyl alcohol Heating; |
Conditions | Yield |
---|---|
With tetrahydrofuran; lithium aluminium tetrahydride; diethyl ether |
Conditions | Yield |
---|---|
With phosphorus pentoxide | |
With toluene-4-sulfonic acid In benzene Dean-Stark; Reflux; |
Conditions | Yield |
---|---|
at 140 - 150℃; |
perillene
(+)-(2R,3R)-dibutyl tartrate
(4R,5R)-2-((E)-4-Furan-3-yl-1-methyl-but-1-enyl)-[1,3]dioxolane-4,5-dicarboxylic acid dibutyl ester
Conditions | Yield |
---|---|
1) SeO2, tert-C4H9OOH, CH2Cl2; Multistep reaction; |
(+)-(2R,3R)-dibutyl tartrate
thymidyl acetic acid
(2R,3R)-2,3-Bis-[2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-acetoxy]-succinic acid dibutyl ester
Conditions | Yield |
---|---|
With 1,1'-carbonyldiimidazole |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
With sodium acetate; phosphorus trichloride at 20℃; for 3h; |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: PCl3; NaOAc / 3 h / 20 °C 2: 240 h / 20 °C View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: PCl3; NaOAc / 3 h / 20 °C 2: 240 h / 20 °C View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: PCl3; NaOAc / 3 h / 20 °C 2: 240 h / 20 °C View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84.6 percent / pyridine / CHCl3 / 5 h / Ambient temperature 2: 24.8 percent / K2CO3, KI / acetone; toluene / 48 h / Heating View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84.6 percent / pyridine / CHCl3 / 5 h / Ambient temperature 2: 10.5 percent / K2CO3, KI / acetone; toluene / 48 h / Heating View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84.6 percent / pyridine / CHCl3 / 5 h / Ambient temperature 2: 9.6 percent / K2CO3, KI / acetone; toluene / 48 h / Heating View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 50 percent / sodium periodate / H2O / 40 h 2: diisopropoxytitanium(IV) dichloride, (+/-)-1,1'-bi-2-naphthol, 4A / CH2Cl2 / -70 deg C - room temperature, room temperature 24 h View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 50 percent / sodium periodate / H2O / 40 h 2: diisopropoxytitanium(IV) dichloride, (+/-)-1,1'-bi-2-naphthol, 4A / CH2Cl2 / -70 deg C - room temperature, room temperature 24 h View Scheme |
(+)-(2R,3R)-dibutyl tartrate
C26H34N4O12*C20H24N6O5
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: carbonyldiimidazole 2: acetone; CH2Cl2 / Irradiation View Scheme |
(+)-(2R,3R)-dibutyl tartrate
C26H34N4O12*C23H30N6O4
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: carbonyldiimidazole 2: acetone; CH2Cl2 / Irradiation View Scheme |
(+)-(2R,3R)-dibutyl tartrate
C26H34N4O12*C24H32N6O4
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: carbonyldiimidazole 2: acetone; CH2Cl2 / Irradiation 3: CDCl3 View Scheme |
(+)-(2R,3R)-dibutyl tartrate
C26H34N4O12
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: carbonyldiimidazole 2: acetone; CH2Cl2 / Irradiation View Scheme |
(+)-(2R,3R)-dibutyl tartrate
Tetrabutyl (4R,4'R,5R,5'R)-2,2'-bi-1,3,2-dioxaborolane-4,4',5,5'-tetracarboxylate
Conditions | Yield |
---|---|
With tetrakis(dimethylamido)diborane In toluene at 100℃; for 1.2h; |
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