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:50-14-6
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur advantage--we provide High quality Vitamin D2-Ergocalciferol and competitive price. (1) 28 year experience in pharmaceutical industry (2)ISO9001:2008 certificated company (3)Fischer Chemicals AG China office Basic information of Vit
Cas:50-14-6
Min.Order:100 Gram
Negotiable
Type:Trading Company
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:50-14-6
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryCAS No.: 50-14-6 Other Names: cholecalciferol MF: C28H44O EINECS No.: 200-014-9 Place of Origin: Henan, China (Mainland) Type: Vitamins, Amino Acids and Coen
Cas:50-14-6
Min.Order:1 Kilogram
FOB Price: $40.0 / 50.0
Type:Other
inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
Cas:50-14-6
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
Type:Manufacturers
inquiryUnique advantages for Vitamin D2 Cas 50-14-6 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White Powder Storage:2-8°C Package:1kg/foil bag, 25kg/drum or as you
Cas:50-14-6
Min.Order:1 Kilogram
FOB Price: $80.0
Type:Trading Company
inquiry1, Full experience of large numbers containers loading in main Chinese seaports 2, Packing with pallet as buyer's special request 3, Best service after shipment with e-mail 4, Cargoes together with container sales service available
Ergocalciferol (Vitamin D2)[CAS.No:50-14-6] Complies with USP/BP 2.5 Kg/Tin , 2 Tin/Carton HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about
The 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
1. 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:50-14-6
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,
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
Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:50-14-6
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
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
LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.
Cas:50-14-6
Min.Order:1 Metric Ton
FOB Price: $0.9 / 1.0
Type:Lab/Research institutions
inquiryVitamin D2 Basic information Vitamin D Toxicity Limited use The maximum allowable amount as food additives and maximal allowable residue limits Chemical Properties Application Production method Product
Cas:50-14-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryOur advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be
Cas:50-14-6
Min.Order:1 Kilogram
FOB Price: $48.0 / 58.0
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:50-14-6
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:50-14-6
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiryName: Vitamin D2 Synonyms: (3beta)-9,10-Secoergosta-5,7,10(19),22-tetraen-3-ol CAS:50-14-6 MF: C28H44O Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Supplement Transportation:By
1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White powder Storage:Store in sealed containers at cool & dr
Cas:50-14-6
Min.Order:100 Gram
Negotiable
Type:Other
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:50-14-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryWe are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery
Cas:50-14-6
Min.Order:10 Gram
FOB Price: $1.32
Type:Trading Company
inquiryProduct Name: Vitamin D2 CAS: 50-14-6 MF: C28H44O MW: 396.65 EINECS: 200-014-9 Mol File: 50-14-6.mol Vitamin D2 Structure Vitamin D2 Chemical Properties Melting point 114-118 °C(lit.) alpha 82 º (c=3, in acetone 2
Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present
Vitamin D2 CAS:50-14-6 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 organic intermediates, s
Cas:50-14-6
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
Superiority We can customize and synthesize products that other suppliers may not be able to provide. Advantage cof, mof ligand manufacturer Product Detail adrenochrome semicarbazone The common name of c
Cas:50-14-6
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
Cas:50-14-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry(3S,5Z,7E)-3-(3,5-dinitro-benzoyloxy)-9,10-seco-ergosta-5,7,10(19),22t-tetraene
Calciferol
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol at 20℃; for 0.75h; Inert atmosphere; | 91% |
Conditions | Yield |
---|---|
Stage #1: Ergosterol In 1,4-dioxane Irradiation; Stage #2: at 100℃; | 23% |
With diethyl ether Irradiation.mit UV-Licht (durch aethanol. Xylol-Loesung gefiltert); | |
Einwirkung elektrischer Entladungen; |
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
diethyl ether
Ergosterol
A
Calciferol
B
lumisterol
C
tachysterol
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Conditions | Yield |
---|---|
UV-Licht.Irradiation; | |
UV-Licht.Irradiation; |
Conditions | Yield |
---|---|
at 20℃; UV-Licht.Irradiation; |
previtamin D2
Calciferol
Conditions | Yield |
---|---|
With benzene at 60℃; Lichtausschluss; | |
Multi-step reaction with 2 steps 2: diethyl ether / Irradiation.mit UV-Licht (Magnesium-Funken) View Scheme |
3β-hydroxy-9,10-secoergosta-5(E),7(E),10(19),22(E)-tetraene
Calciferol
Conditions | Yield |
---|---|
Irradiation.UV-Licht <λ: >290 nm>; |
Conditions | Yield |
---|---|
With diethyl ether Irradiation.mit UV-Licht (Magnesium-Funken); | |
With diethyl ether Irradiation.mit UV-Licht (Magnesium-Funken); |
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
ethanol
Ergosterol
benzene
A
Calciferol
B
lumisterol
C
tachysterol
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Ergosterol
benzene
A
Calciferol
B
lumisterol
C
tachysterol
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Conditions | Yield |
---|---|
mit UV-Licht unter Kuehlung bei Luftausschluss.Irradiation; |
Conditions | Yield |
---|---|
at 60℃; Lichtausschluss; | |
at 40 - 70℃; Rate constant; Isomerisierung; |
3β-hydroxy-9,10-secoergosta-5(E),7(E),10(19),22(E)-tetraene
benzene
Calciferol
Conditions | Yield |
---|---|
Isomerisierung; UV-Licht (λ: >290 nm).Irradiation; |
Ergosterol
A
Calciferol
B
previtamin D2
C
lumisterol
D
tachysterol
Conditions | Yield |
---|---|
With var. irradiation time; the influence of sunlamp emission spectrum on the course of the reaction In ethanol Product distribution; Irradiation; |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; desilylation; overnight; |
O-(3.5-dinitro-benzoyl)-ergocalciferol
Calciferol
Conditions | Yield |
---|---|
unter Stickstoff; |
O-(3.5-dinitro-benzoyl)-ergocalciferol
Calciferol
Conditions | Yield |
---|---|
unter Stickstoff; |
methylammonium carbonate
Calciferol
(1R,3aR,7aR)-7a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-one
Calciferol
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: 81 percent / Amberlite<*> IR-118 ion-exchange resin; Na; EtOH / diethyl ether / 2.5 h / 0 °C 2.1: 72 percent / PPh3; diisopropyl azodicarboxylate / tetrahydrofuran / 25 h / 0 - 20 °C 3.1: 73 percent / H2O2 / (NH4)6Mo7O24*4H2O / aq. ethanol / 240 h / 20 °C 4.1: NaHMDS / diethyl ether; tetrahydrofuran / 1 h / -78 °C 4.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C 4.3: diethyl ether; tetrahydrofuran / -100 - 20 °C 5.1: Bu4NF*3H2O / tetrahydrofuran / 20 °C / overnight View Scheme |
(2Z)-2-<(5S)-5-(tert-butyldimethylsilyloxy)-2-methylene-cyclohexylidene>-ethanol
Calciferol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: NaHMDS / diethyl ether; tetrahydrofuran / 1 h / -78 °C 1.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C 1.3: diethyl ether; tetrahydrofuran / -100 - 20 °C 2.1: Bu4NF*3H2O / tetrahydrofuran / 20 °C / overnight View Scheme |
(4R,7aR)-1-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-4-((R,Z)-1-hydroxy-2-((S)-5-hydroxy-2-methylenecyclohexylidene)ethyl)-7a-methyloctahydro-1H-inden-4-ol
Calciferol
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: 89 percent / imidazole; DMAP / CH2Cl2 / 20 °C 2.1: pyridine; Pb(OAc)4 / CH2Cl2 / 0.25 h / 0 °C 2.2: 83 percent / CeCl3*7H2O; NaBH4 / methanol / 0.25 h / 0 °C 3.1: 81 percent / Amberlite<*> IR-118 ion-exchange resin; Na; EtOH / diethyl ether / 2.5 h / 0 °C 4.1: 72 percent / PPh3; diisopropyl azodicarboxylate / tetrahydrofuran / 25 h / 0 - 20 °C 5.1: 73 percent / H2O2 / (NH4)6Mo7O24*4H2O / aq. ethanol / 240 h / 20 °C 6.1: NaHMDS / diethyl ether; tetrahydrofuran / 1 h / -78 °C 6.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C 6.3: diethyl ether; tetrahydrofuran / -100 - 20 °C 7.1: Bu4NF*3H2O / tetrahydrofuran / 20 °C / overnight View Scheme | |
Multi-step reaction with 4 steps 1.1: 89 percent / imidazole; DMAP / CH2Cl2 / 20 °C 2.1: pyridine; Pb(OAc)4 / CH2Cl2 / 0.25 h / 0 °C 2.2: 81 percent / CeCl3*7H2O; NaBH4 / methanol / 0.25 h / 0 °C 3.1: NaHMDS / diethyl ether; tetrahydrofuran / 1 h / -78 °C 3.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C 3.3: diethyl ether; tetrahydrofuran / -100 - 20 °C 4.1: Bu4NF*3H2O / tetrahydrofuran / 20 °C / overnight View Scheme |
(5Z,22E)-(7R)-3β-(tert-butyldimethylsilyloxy)-9,10-seco-8α-ergosta-5,10(19),22-triene-7,8-diol
Calciferol
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: pyridine; Pb(OAc)4 / CH2Cl2 / 0.25 h / 0 °C 1.2: 83 percent / CeCl3*7H2O; NaBH4 / methanol / 0.25 h / 0 °C 2.1: 81 percent / Amberlite<*> IR-118 ion-exchange resin; Na; EtOH / diethyl ether / 2.5 h / 0 °C 3.1: 72 percent / PPh3; diisopropyl azodicarboxylate / tetrahydrofuran / 25 h / 0 - 20 °C 4.1: 73 percent / H2O2 / (NH4)6Mo7O24*4H2O / aq. ethanol / 240 h / 20 °C 5.1: NaHMDS / diethyl ether; tetrahydrofuran / 1 h / -78 °C 5.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C 5.3: diethyl ether; tetrahydrofuran / -100 - 20 °C 6.1: Bu4NF*3H2O / tetrahydrofuran / 20 °C / overnight View Scheme | |
Multi-step reaction with 3 steps 1.1: pyridine; Pb(OAc)4 / CH2Cl2 / 0.25 h / 0 °C 1.2: 81 percent / CeCl3*7H2O; NaBH4 / methanol / 0.25 h / 0 °C 2.1: NaHMDS / diethyl ether; tetrahydrofuran / 1 h / -78 °C 2.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C 2.3: diethyl ether; tetrahydrofuran / -100 - 20 °C 3.1: Bu4NF*3H2O / tetrahydrofuran / 20 °C / overnight View Scheme |
Calciferol
(S)-3-[(1R,3aS,7aR)-7a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-(4E)-ylidenemethyl]-2,2-dioxo-2,3,4,5,6,7-hexahydro-1H-2λ6-benzo[c]thiophen-5-ol
Conditions | Yield |
---|---|
With sulfur dioxide 1.) reflux, 30 min, 2.) RT, 30 min; | 100% |
With sulfur dioxide In water; benzene for 3.5h; | |
With sulfur dioxide In dichloromethane at -10℃; for 1.25h; |
Calciferol
(8S,20S)-de-A,B-20-(hydroxymethyl)pregnan-8-ol
Conditions | Yield |
---|---|
Stage #1: Calciferol With ozone In methanol; dichloromethane at -78℃; for 3h; Inert atmosphere; Stage #2: With sodium tetrahydroborate In methanol; dichloromethane at -78 - 20℃; for 0.5h; Inert atmosphere; | 99% |
Stage #1: Calciferol With ozone In dichloromethane at -78℃; Stage #2: With sodium tetrahydroborate In methanol at 0℃; | 90% |
Stage #1: Calciferol With pyridine; ozone In methanol at -78℃; Inert atmosphere; Stage #2: With methanol; sodium tetrahydroborate at 20℃; | 81% |
Conditions | Yield |
---|---|
With pyridine | 99% |
With triethylamine In dichloromethane at -5 - 20℃; | 89.4% |
With pyridine at 20 - 22℃; for 22h; |
Calciferol
Conditions | Yield |
---|---|
With sulfur dioxide In dichloromethane at -20 - -10℃; Inert atmosphere; | 95.7% |
Calciferol
tert-butyldimethylsilyl chloride
3(S)-tert-butyldimethylsilyloxy-9,10-secoergosta-5,7(E),10(19),22(E)-tetraene
Conditions | Yield |
---|---|
With 1H-imidazole In N,N-dimethyl-formamide for 2.5h; | 95% |
With 1H-imidazole In N,N-dimethyl-formamide at 20℃; for 1h; | 92% |
With 1H-imidazole In N,N-dimethyl-formamide at 20℃; for 1h; | 92% |
Conditions | Yield |
---|---|
With dmap In diethyl ether at 50℃; | 95% |
Conditions | Yield |
---|---|
With 1,1,1,3,3,3-hexamethyl-disilazane In tetrahydrofuran for 0.5h; Heating; | 94% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 24h; Inert atmosphere; Darkness; | 93% |
With pyridine |
Conditions | Yield |
---|---|
With bis(cyclopentadienyl)titanium dichloride; lithium aluminium tetrahydride In tetrahydrofuran for 2.5h; | A 10% B 90% |
With bis(cyclopentadienyl)titanium dichloride; sodium bis(2-methoxyethoxy)aluminium dihydride In tetrahydrofuran; toluene for 1.5h; Product distribution; Ambient temperature; var. reducing agents, ratios of reagents, solvents, and reaction time; other analogues of vitamin D2; | A 60% B 40% |
With bis(cyclopentadienyl)titanium dichloride In tetrahydrofuran; toluene for 1.5h; Ambient temperature; | A 60% B 40% |
Calciferol
1,1'-carbonyldiimidazole
Imidazole-1-carboxylic acid (S)-4-methylene-3-[2-[(1R,3aS,7aR)-7a-methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-(4E)-ylidene]-eth-(Z)-ylidene]-cyclohexyl ester
Conditions | Yield |
---|---|
With triethylamine In dichloromethane for 2h; Condensation; Heating; | 90% |
Calciferol
ercalcidiol
Conditions | Yield |
---|---|
With dihydrogen peroxide In aq. phosphate buffer at 40℃; for 1h; pH=7; Enzymatic reaction; regioselective reaction; | 90% |
With NADPH; NADPH-P450 reductase In various solvent(s) at 37℃; pH=7.7; Enzyme kinetics; | |
With coprinopsis cinerea peroxygenase; dihydrogen peroxide In aq. phosphate buffer; acetone at 40℃; for 1h; pH=7; Reagent/catalyst; Enzymatic reaction; |
4-Phenyl-1,2,4-triazolidine-3,5-dione
Calciferol
6(S),19-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-3β-hydroxy-9,10-secoergosta-5(10),7(E),22(E)-triene
Conditions | Yield |
---|---|
In ethyl acetate at 0℃; for 1h; | 86% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 0.25h; Inert atmosphere; Microwave irradiation; | 85% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 0.25h; Inert atmosphere; Microwave irradiation; | 84% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 0.25h; Inert atmosphere; Microwave irradiation; | 83% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 0.25h; Inert atmosphere; Microwave irradiation; | 81% |
Calciferol
(1R,3aR,7aR)-7a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-one
Conditions | Yield |
---|---|
Stage #1: Calciferol With potassium permanganate In ethanol; water at -15℃; Stage #2: With pyridine; lead(IV) tetraacetate In dichloromethane at -15℃; | 80% |
Product distribution; Ambient temperature; degradation; | |
With potassium permanganate; sulfuric acid; benzene |
Calciferol
Conditions | Yield |
---|---|
Stage #1: Calciferol With ozone Stage #2: With sodium tetrahydroborate In methanol at -78℃; | 80% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 0.25h; Inert atmosphere; Microwave irradiation; | 80% |
1-oxyl-4-carboxyl-2,2,6,6-tetramethylpiperidine
Calciferol
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 26h; Inert atmosphere; | 76% |
Calciferol
(1R,3aR,7aR)-1-((S)-1-hydroxypropan-2-yl)-7a-methyloctahydro-1H-inden-4-ol
Conditions | Yield |
---|---|
With sodium tetrahydroborate; ozone In methanol; dichloromethane at -78℃; | 75% |
Stage #1: Calciferol With sodium hydrogencarbonate; ozone In methanol; dichloromethane at -78℃; Stage #2: With sodium tetrahydroborate In methanol; dichloromethane at -78 - 0℃; | 60% |
Stage #1: Calciferol With sodium hydrogencarbonate; ozone In methanol; dichloromethane at 20℃; Stage #2: With sodium tetrahydroborate | 50% |
With ozone | |
Multi-step reaction with 2 steps 1: ozonolysis 2: sodium tetrahydroborate View Scheme |
Calciferol
Conditions | Yield |
---|---|
Stage #1: Calciferol With sodium hydrogencarbonate In methanol; dichloromethane at -78℃; Inert atmosphere; Stage #2: With ozone In methanol; dichloromethane for 48h; Stage #3: With methanol; sodium tetrahydroborate In dichloromethane at 20℃; | 75% |
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0℃; for 0.0833333h; | 71% |
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0℃; for 0.0833333h; | 71% |
Calciferol
(4R,7aR)-1-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-4-((R,Z)-1-hydroxy-2-((S)-5-hydroxy-2-methylenecyclohexylidene)ethyl)-7a-methyloctahydro-1H-inden-4-ol
Conditions | Yield |
---|---|
With potassium permanganate | 70% |
With potassium permanganate In ethanol at -20℃; for 2h; | 65% |
With potassium permanganate In ethanol; water at -30 - 45℃; | 1.9 g |
With potassium permanganate | |
With potassium permanganate In ethanol; water at -45 - 20℃; for 4.5h; regioselective reaction; |
Calciferol
[1S-[1β(R*),3aα,7aβ]]-octahydro-1-(2-hydroxy-1-methylethyl)-7a-methyl-4H-inden-4-one
Conditions | Yield |
---|---|
Stage #1: Calciferol With ozone In methanol; dichloromethane at -70℃; Stage #2: With sodium tetrahydroborate In methanol; dichloromethane | 68% |
Multi-step reaction with 3 steps 1: acetonitrile 2: ruthenium trichloride; sodium periodate / acetonitrile; ethyl acetate; water 3: ruthenium trichloride; sodium periodate / acetonitrile; ethyl acetate; water View Scheme |
Calciferol
(3S,5Z,7Ξ)-9,10-seco-8ξ-ergosta-5,10(19),22t-triene-3,7,8-triol
Conditions | Yield |
---|---|
With potassium permanganate In ethanol; water at -20 - 40℃; for 0.75h; | 65% |
With potassium permanganate In tetrahydrofuran; water | 65% |
With potassium permanganate In ethanol at -30 - 45℃; for 4.16667h; | 62.7% |
With potassium permanganate In ethanol; water | 40.4% |
With potassium permanganate |
Conditions | Yield |
---|---|
With titanium(IV) tetrabutoxide; triethylamine In dichloromethane at 20℃; for 20h; | 63% |
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