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:3969-84-4
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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:3969-84-4
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryOur 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 Scientific and so on.O
Cas:3969-84-4
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:3969-84-4
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:3969-84-4
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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:3969-84-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry3,4-O-ISOPROPYLIDENE-D-MANNITOL CAS:3969-84-4 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 o
Cas:3969-84-4
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
Cas:3969-84-4
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:3969-84-4
Min.Order:0
Negotiable
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
Cas:3969-84-4
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryZibo Hangyu Biotechnology Development 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 chemi
Cas:3969-84-4
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:3969-84-4
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:3969-84-4
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:3969-84-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:3969-84-4
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:3969-84-4
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
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
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryhigh 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
Ansciep 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
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry3,4-O-(1-methylethylidene)-D-Mannitol Application:3,4-O-(1-methylethylidene)-D-Mannitol
good quality, competitive price, thoughtful after sale serviceAppearance:White to Off-White Solid Storage:Keep it in dry,shady and cool place Package:as your requirement Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by Sea
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white to yellow powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as
Supply top quality products with a reasonable price Application:api
3,4-O-Isopropylidene-D-mannitol cas 3969-84-4Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Other
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWuhan Xinweiye Chemical Co., Ltd. is mainly engaged in the process development and production of customized synthesis and pharmaceutical intermediates. We have professional researchers in organic synthesis, analytical chemistry and production process
Cas:3969-84-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry(+)-1,2,3,4,5,6-tris-O-isopropylidene-D-mannitol
3,4-di-O-isopropylidene-D-mannitol
mannitol triacetonide
A
3,4-di-O-isopropylidene-D-mannitol
B
1,2:3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With H-Beta zeolite; water In methanol at 20℃; for 6h; Product distribution; Further Variations:; Reagents; reaction time; molar ratio; | A 36% B 48% |
With hydrogenchloride In ethanol at 45℃; for 1h; | A 36 % Chromat. B 42 % Chromat. |
With hydrogenchloride In ethanol at 45℃; for 1h; Product distribution; time; | A 36 % Chromat. B 42 % Chromat. |
Conditions | Yield |
---|---|
Stage #1: mannitol; acetone With sulfuric acid at 20℃; for 48h; Stage #2: With acetic acid In water for 2h; Further stages.; | 38% |
With sulfuric acid; acetic acid 1.) HOAc, 25 deg C, 20 h, 2.) 40 deg C, 1.75 h; Yield given. Multistep reaction; | |
With sulfuric acid; acetic acid 1.) 23 deg C, 24 h, 2.) 40 deg C, 2 h; Multistep reaction; | |
Stage #1: mannitol; acetone With sulfuric acid cyclocondensation; Stage #2: In water; acetic acid Hydrolysis; Further stages.; | |
Stage #1: mannitol; acetone With sulfuric acid cyclocondensation; Stage #2: With acetic acid at 40℃; for 2.5h; Hydrolysis; Further stages.; |
3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With ammonia at 20℃; |
water
1,2;5,6-dianhydro-3,4-O-isopropylidene-D-mannitol
3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With sodium carbonate; sulfuric acid In acetone | |
Multi-step reaction with 2 steps 1: toluene-4-sulfonic acid / acetone / 24 h / Reflux 2: hydrogenchloride / water; methanol / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: indium(III) triflate / 3 h / 65 °C 2: methanol / 2 h / 40 °C / Acidic conditions View Scheme | |
Multi-step reaction with 2 steps 1: sulfuric acid / acetone 2: acetic acid / water / 1 h / 40 °C View Scheme |
tert-butyldimethylsilyl chloride
3,4-di-O-isopropylidene-D-mannitol
1,6-bis(tert-butyldimethylsilyloxy)-3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With 1H-imidazole In dichloromethane at 0℃; for 2h; | 100% |
With triethylamine In N,N-dimethyl-formamide at 20℃; for 0.5h; | 100% |
With dmap; triethylamine In dichloromethane at 20℃; for 8h; | 94% |
With 1H-imidazole In N,N-dimethyl-formamide at 20℃; for 1.25h; |
Conditions | Yield |
---|---|
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With 1H-imidazole; sodium hydride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 0.5h; Inert atmosphere; Stage #2: 1-bromomethyl-4-bromobenzene In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 24h; Inert atmosphere; | 100% |
benzyl bromide
3,4-di-O-isopropylidene-D-mannitol
1,2,5,6-tetra-O-benzyl-3,4-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.5h; Stage #2: benzyl bromide In N,N-dimethyl-formamide at 20℃; | 98% |
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 0.75h; Inert atmosphere; Stage #2: benzyl bromide With tetra-(n-butyl)ammonium iodide In tetrahydrofuran; N,N-dimethyl-formamide; mineral oil at 20℃; Inert atmosphere; | 93% |
With sodium hydride In N,N-dimethyl-formamide | |
With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide at 60℃; |
trityl chloride
3,4-di-O-isopropylidene-D-mannitol
O3,O4-isopropylidene-O1,O6-ditrityl-D-mannitol
Conditions | Yield |
---|---|
With dmap In pyridine at 22℃; for 48h; | 97% |
With pyridine for 48h; Ambient temperature; | 74% |
With pyridine at 20℃; for 48h; |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 20℃; for 24h; | 95% |
Conditions | Yield |
---|---|
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With sodium hydride In N,N-dimethyl-formamide for 0.25h; Stage #2: propargyl bromide In N,N-dimethyl-formamide; toluene at 20℃; for 25h; | 94% |
1-triphenylphosphoranylidene-2-propanone
3,4-di-O-isopropylidene-D-mannitol
(5R,6R)-5,6-dihydroxy-5,6-O-isopropylidene-deca-3,7-diene-2,9-dione
Conditions | Yield |
---|---|
With sodium periodate; silica gel In dichloromethane at 20℃; for 20h; Wittig reaction; | 92% |
benzoyl chloride
3,4-di-O-isopropylidene-D-mannitol
1,6-di-O-benzoyl-3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With pyridine In dichloromethane at -80℃; for 4h; | 90% |
With pyridine In chloroform at 0℃; | 80% |
With pyridine In dichloromethane | 72% |
2,2-dimethoxy-propane
3,4-di-O-isopropylidene-D-mannitol
mannitol triacetonide
Conditions | Yield |
---|---|
In 1,2-dimethoxyethane for 48h; Heating; | 89% |
p-toluenesulfonyl chloride
3,4-di-O-isopropylidene-D-mannitol
1,6-di-O-(p-toluenesulfonyl)-3,4-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With pyridine Tosylation; | 86% |
In pyridine at 0℃; for 3.75h; | 84% |
With pyridine |
benzyl bromide
3,4-di-O-isopropylidene-D-mannitol
1,6-di-O-benzyl-3,4-O-methylethylidene-D-mannitol
Conditions | Yield |
---|---|
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With di(n-butyl)tin oxide In toluene for 15h; Substitution; Heating; Stage #2: benzyl bromide With tetra-(n-butyl)ammonium iodide In toluene at 70℃; for 15h; Substitution; | 86% |
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With di(n-butyl)tin oxide In toluene Heating; Stage #2: benzyl bromide With cesium fluoride | 82% |
With di(n-butyl)tin oxide; cesium fluoride In hexane; N,N-dimethyl-formamide; toluene | 65% |
With di(n-butyl)tin oxide; cesium fluoride 1.) toluene; Yield given. Multistep reaction; |
benzyl bromide
3,4-di-O-isopropylidene-D-mannitol
1,2,5,6-tetra-O-benzyl-D-mannitol
Conditions | Yield |
---|---|
With hydrogenchloride; acetyl chloride In methanol; hexane; N,N-dimethyl-formamide | 81% |
Multi-step reaction with 2 steps 1.1: sodium hydride / tetrahydrofuran; mineral oil; N,N-dimethyl-formamide / 0.75 h / 0 - 20 °C / Inert atmosphere 1.2: 20 °C / Inert atmosphere 2.1: acetic acid / water / 100 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 0.5 h / 0 °C 1.2: 20 °C 2.1: hydrogenchloride / methanol; water / 4 h / Reflux View Scheme |
benzyl chloride
3,4-di-O-isopropylidene-D-mannitol
1,2,5,6-tetra-O-benzyl-3,4-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With sodium hydroxide; potassium carbonate; tert-Amyl alcohol; tetra(n-butyl)ammonium hydrogensulfate In dimethyl sulfoxide; benzene for 12h; Ambient temperature; | 80% |
Conditions | Yield |
---|---|
With pyridine; triethylamine at 0 - 20℃; for 48h; | 79% |
phenyl isocyanate
3,4-di-O-isopropylidene-D-mannitol
1,6-di-O-(phenylcarbmoyl)-3,4-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With Zn naphthenate; triethylamine In N,N-dimethyl-formamide for 1h; Ambient temperature; | 77% |
1-Bromotetradecane
3,4-di-O-isopropylidene-D-mannitol
(4R,5R)-4,5-Bis-((R)-1,2-bis-tetradecyloxy-ethyl)-2,2-dimethyl-[1,3]dioxolane
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide at 25℃; for 48h; | 76% |
Conditions | Yield |
---|---|
73% |
Conditions | Yield |
---|---|
72% |
3,4-di-O-isopropylidene-D-mannitol
1,2;5,6-dianhydro-3,4-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With triphenylphosphine; diethylazodicarboxylate at 120℃; under 0.1 Torr; for 3h; | 68% |
Yield given. Multistep reaction; | |
Multi-step reaction with 2 steps 1: pyridine / CH2Cl2 / 4 h / 0 °C 2: K2CO3 / methanol / 2.5 h / 25 °C View Scheme |
ethyl (triphenylphosphoranylidene)acetate
3,4-di-O-isopropylidene-D-mannitol
(E)-3-[(4R,5R)-5-((E)-2-Ethoxycarbonyl-vinyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-acrylic acid ethyl ester
Conditions | Yield |
---|---|
With sodium periodate; silica gel In dichloromethane at 20℃; for 20h; Wittig reaction; | 67% |
Conditions | Yield |
---|---|
65% |
4-cyanobenzyl bromide
3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
65% |
trityl chloride
3,4-di-O-isopropylidene-D-mannitol
3,4-O-isopropylidene-1-O-trityl-D-mannitol
Conditions | Yield |
---|---|
With pyridine Ambient temperature; | 63% |
3,4-di-O-isopropylidene-D-mannitol
(2R,3R,4R,5R)-3,4-O-(1-methylethylidene)-2,3,4,5-hexanetetraol
Conditions | Yield |
---|---|
Stage #1: 3,4-di-O-isopropylidene-D-mannitol With pyridine; p-toluenesulfonyl chloride In dichloromethane at 0℃; for 4h; Stage #2: With lithium aluminium tetrahydride In tetrahydrofuran for 3h; Further stages.; | 61% |
Multi-step reaction with 2 steps 1: pyridine / 0 °C 2: LiAlH4 / tetrahydrofuran View Scheme | |
Multi-step reaction with 3 steps 1: pyridine 2: K2CO3 / methanol 3: 85 percent / LiEt3BH / tetrahydrofuran / 2 h / 20 °C View Scheme |
3,4-di-O-isopropylidene-D-mannitol
methyl iodide
3,4-O-isopropylidene-1,2,5,6-tetra-O-methyl-D-mannitol
Conditions | Yield |
---|---|
With sodium methylsulfinylmethanide In dimethyl sulfoxide 1.) 0 degC, 2.) 0 degC to r.t.; | 60% |
3,4-di-O-isopropylidene-D-mannitol
Conditions | Yield |
---|---|
With Hexamethylphosphorous triamide In acetonitrile for 2h; | 50% |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View