ProName: Diosgenin CasNo: 512-04-9 Molecular Formula: C27H42O3 Appearance: Almost white crystalline powder Application: CAS NO.: 512-04-9 DeliveryTime: within 3-7 workdays after payment PackAge: 25kg/drum, 20kg/drum, 10kg
Cas:512-04-9
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inquiryWhy Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu
Cas:512-04-9
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inquiry1.Yam Rhizome Extract contains diosgenin, which has anti-fatigue, anti-inflammatory, anti-stress, hypocholesterolemic, and estrogenic effects. 2.Yam Rhizome Extract is antispasmodic, and could be helpful for nausea of pregnant women(morning sickne
Cas:512-04-9
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inquiryDayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
Cas:512-04-9
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inquiry. Wild yam is one of the more widely used tonic herbs. Because the herb has a neutral energy and therefore is neither hot nor cold, it benefits everybody who takes it. It helps to build strong digestion and metabolism. 2. Wild yam is also hel
Cas:512-04-9
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inquiryProduct Description
Unique advantages of Diosgenin CAS 512-04-9 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White crystalline powder Storage:Normal temperature preservation Package:1kg/foil
Cas:512-04-9
Min.Order:1 Kilogram
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inquirySleeping pills and stability.This product is white or white crystalline powder;Odourless and slightly bitter taste.Almost insoluble in water, soluble in hydrochloric acid.In acid or alkali and heat hydrolysis, oral drug under the action of gastric
Come From Nature / Building Healthy Life Beauty In Your Face / Nourishment Your Taste Bud. Professional Factory: We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of con
Cas:512-04-9
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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
Cas:512-04-9
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inquiryShanghai 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:512-04-9
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Type:Manufacturers
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
Name: Wild Yam Extract CAS no. : 512-04-9 Molecular formula: C27H42O3 Molecular weight: 414.63 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerabi
Cas:512-04-9
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Type:Other
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Our 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:512-04-9
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Type:Lab/Research institutions
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:512-04-9
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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
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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:512-04-9
Min.Order:10 Kilogram
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Type:Trading Company
inquirySynonyms Diosgenin CAS No. 512-04-9 EINECS 208-134-3 Molecular formula C27H42O3 Molecular weight 414.62 Appearance of
Cas:512-04-9
Min.Order:5 Metric Ton
FOB Price: $1.0 / 2.0
Type:Other
inquiryAppearance:White or almost white powder Storage:R.T Package:25kg/Barrel Application:An important basic raw material for a variety of steroid drugs. Transportation:Express/Sea/Air Port:Any port in China
Cas:512-04-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryHanways chempharm is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The marketing department is located in Wuhan. We have two GMP facilities in Hubei Pr
Cas:512-04-9
Min.Order:1 Kilogram
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Type:Trading Company
inquiry1.In No Less five years exporting experience. 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Onchem (China) Co.,Ltd is Sp
Cas:512-04-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryQuick Details CAS No.: 512-04-9 Other Names: HYDROXY-5-SPIROSTENE MF: C27H42O3 EINECS No.: 208-134-3 Place of Origin: Shaanxi, China
Cas:512-04-9
Min.Order:1 Kilogram
FOB Price: $30.0
Type:Trading Company
inquiryOur 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 prese
Beluga chemical professional supply High quality Diosgenin CAS 512-04-9 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities. 2. Made in China and exp
Cas:512-04-9
Min.Order:1 Gram
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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:512-04-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryCompany information: Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in chemical raw materials and chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big custo
Cas:512-04-9
Min.Order:1 Kilogram
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inquirydiosgenin CAS: 512-04-9 Specification identification standardization test method result aspect off white fine powder visual complied odor &
1.Free sample(10-20g or enough to detection) and Unconditional assume respons 2.100% Natural porduct, without any synthetize ingredient 3.Manufacturer direct supply, provide OEM, R&D service 4.ISO/HACCP/KOSHER/GMP/FDA 5.Leading plant ex
PRODUCT DETAILS
Cas:512-04-9
Min.Order:1000 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquirypseudodiosgenin
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 20℃; for 12h; Cycloaddition; | 100% |
tert-butyldimethyl(((2’R,4S,5’R,6aR,6bS,8aS,8bR,9S,11aS,12aS,12bS)-5’,6a,8a,9-tetramethyl-1,3,3’,4,4’,5,5’,6,6a,6b,6’,7,8,8a,8b,9,11a,12,12a,12b-icosahydrospiro[naphtho[2’,1’:4,5]indeno[2,1-b]furan-10,2’-pyran]-4-yl)oxy)silane
diosgenin
Conditions | Yield |
---|---|
With chloro-methylsulfanyl-methane; water; potassium iodide In 1,4-dioxane at 50℃; for 2.3h; Catalytic behavior; Temperature; Time; Solvent; Reagent/catalyst; | 99% |
Conditions | Yield |
---|---|
With potassium hydrogensulfate; silica gel In methanol at 65℃; for 5h; | 90% |
Aspergillus niger; |
3-O-(tert-butyldiphenylsilyl)diosgenin
diosgenin
Conditions | Yield |
---|---|
With perchloric acid on silica gel In acetonitrile at 50℃; for 0.5h; chemoselective reaction; | 84% |
pseudodiosgenin
A
(3β,20R,22R,25R)-spirosol-5-en-3-ol
B
diosgenin
Conditions | Yield |
---|---|
With acetic acid at 20℃; Cycloaddition; | A 68.3% B 12.6% |
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate In tetrahydrofuran Electrochemical reaction; | A 53% B 47% |
methanol
A
methyl D-glucopyranoside
B
methyl xyloside
C
methyl L-rhamnopyranoside
D
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride for 2.5h; Product distribution; Heating; | A n/a B n/a C n/a D 50.8% |
methanol
A
methyl D-glucopyranoside
B
methyl xyloside
C
methyl L-rhamnopyranoside
D
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride for 2.5h; Product distribution; Heating; | A n/a B n/a C n/a D 50.6% |
diosgenin
Conditions | Yield |
---|---|
With silica gel | 50% |
25R-spirost-5-en-3β-yl diphenyl phosphate
1,2:3,4-di-O-isopropylidene-α-D-galactopyranose
A
3β-O-(1',2':3',4'-di-O-isopropylidene-α-D-galactopyranos-6'-yl)-(25R)-spirost-5-ene
B
diosgenin
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate In dichloromethane at 25℃; Molecular sieve; Inert atmosphere; Electrochemical reaction; | A 37% B 7% |
dioscin
diosgenin
Conditions | Yield |
---|---|
With sulfuric acid In ethanol; water at 80℃; | 1.82% |
With hydrogenchloride In 1,4-dioxane; water for 2h; Heating; | 8 mg |
Multi-step reaction with 2 steps 1: 1 N H2SO4 / aq. ethanol 2: 1 N H2SO4 / aq. ethanol View Scheme |
Conditions | Yield |
---|---|
With aluminum isopropoxide; isopropyl alcohol | |
Multi-step reaction with 2 steps 1: pyridine 2: propanol-(2); sodium View Scheme | |
Multi-step reaction with 2 steps 1: pyridine 2: isopropyl alcohol; sodium View Scheme |
Conditions | Yield |
---|---|
With sodium; isopropyl alcohol |
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol; water | |
Multi-step reaction with 2 steps 1: acetic acid anhydride 2: ethanol; HCl; water View Scheme |
Conditions | Yield |
---|---|
With ethanol; sodium ethanolate; hydrazine hydrate | |
With alkali hydroxide; hydrazine hydrate; diethylene glycol |
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol; water |
methanol
C
Methyl-(6-desoxy-2,3,4-tri-O-methyl-α-L-mannopyranosid)
D
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride at 100℃; for 1h; |
diosgenin 3-O-<α-L-rhamnopyranosyl(1<*>2)>-<β-D-glucopyranosyl(1<*>4)>-β-D-glucopyranoside
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane for 3h; Heating; | |
Multi-step reaction with 3 steps 1: steroidal saponin-β-glucosidase from Aspergillus flavus / aq. buffer / 50 °C / pH 5 / Enzymatic reaction 2: steroidal saponin-α-1,2-rhamnosidase from C. lunata / aq. buffer / 50 °C / pH 5 / Enzymatic reaction 3: steroidal saponin-β-glucosidase from Aspergillus flavus / aq. buffer / 50 °C / pH 5 / Enzymatic reaction View Scheme |
(3β,25R)-spirost-5-en-3-yl 6-deoxy-α-L-mannopyranosyl-(1->2)-[6-deoxy-α-L-mannopyranosyl-(1->3)]-β-D-glucopyranoside
A
trillin
B
diosgenin
Conditions | Yield |
---|---|
With sulfuric acid In methanol; water at 100℃; for 10h; | A 75 mg B 60 mg |
(3β,25R)-spirost-5-en-3-ol-3-O-α-L-arabinofuranosyl-(1->4)-[α-L-rhamnopyranosyl-(1->2)]-β-D-glucopyranoside
A
trillin
B
ophiopogonin C
C
diosgenin
Conditions | Yield |
---|---|
With sulfuric acid In 1,4-dioxane at 100℃; for 4h; | |
at 290℃; further temp.; |
26-(O-β-D-glucopyranosyl)-3-β-[4-O-(β-D-glucopyranosyl)-2-O-(α-L-rhamnopyranosyl)-β-D-glucopyranosyloxy]-22,26-dihydroxyfurost-5-ene
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane for 3h; Heating; |
diosgenin-3-O-α-L-rhamnopyranosyl-(1->2)-β-D-glucopyranoside
diosgenin
Conditions | Yield |
---|---|
With sulfuric acid In water for 3h; Heating; | |
Acid hydrolysis; |
26-O-β-D-glucopyranosyl-22-hydroxyfurost-5-ene-3β,26-diol 3-O-α-L-rhamnopyranosyl(1<*>2)-β-D-glucopyranoside
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane for 3h; Heating; |
permethylate of taccaoside
A
O4,O6-dimethyl-α-D-glucopyranose
B
2,3,4-tri-O-methyl-L-rhamnose
C
diosgenin
Conditions | Yield |
---|---|
With sulfuric acid In methanol; water at 100℃; for 10h; | A n/a B n/a C 16 mg |
degalactototigonin
A
(25R)-5α-spirost-5-en-3β-ol 3-O-β-D-galactopyranoside
B
diosgenin 3-O-β-D-glucopyranosyl-(1->4)-β-D-galactopyranoside
C
(25R)-spirost-5-en-3β-ol 3-O-β-D-glucopyranosyl-(1->2)-β-D-glucopyranosyl-(1->4)-β-D-galactopyranoside
D
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane; water for 1h; Heating; | A 120 mg B 170 mg C 320 mg D 140 mg |
deltonin per-O-methylate
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In methanol for 2h; Heating; |
C61H102O20
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In methanol for 2h; Heating; |
rhapissaponin
diosgenin
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane; water for 2h; Heating; | 2 mg |
p-toluenesulfonyl chloride
diosgenin
(25R)-3β-O-(p-toluenesulfonyloxy)spirost-5-ene
Conditions | Yield |
---|---|
With pyridine In dichloromethane for 3h; Darkness; | 100% |
With pyridine at 20℃; for 6h; | 97.7% |
With pyridine |
2,3,4,6-tetra-O-benzoyl-D-glucopyranosyl trichloroacetimidate
diosgenin
trillin
Conditions | Yield |
---|---|
Stage #1: 2,3,4,6-tetra-O-benzoyl-D-glucopyranosyl trichloroacetimidate; diosgenin With trimethylsilyl trifluoromethanesulfonate; 4 A molecular sieve In dichloromethane at 20℃; for 0.25h; Glycosylation; Stage #2: With sodium methylate Substitution; | 100% |
Conditions | Yield |
---|---|
Stage #1: C41H40Cl3NO16; diosgenin With trimethylsilyl trifluoromethanesulfonate; 4 A molecular sieve In dichloromethane at 20℃; for 0.25h; Glycosylation; Stage #2: With sodium methylate Substitution; | 100% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; for 12h; | 100% |
succinic acid anhydride
diosgenin
4-(((25R)-spirost-5-ene-3β-yl)oxy)-4-oxobutanoic acid
Conditions | Yield |
---|---|
With pyridine at 80℃; | 100% |
With dmap In toluene at 80℃; | 99.2% |
With dmap; triethylamine In dichloromethane at 80℃; for 72h; | 94% |
Conditions | Yield |
---|---|
With pyridine at 20℃; for 0.5h; | 100% |
Conditions | Yield |
---|---|
Stage #1: bis(trichloromethyl) carbonate; diosgenin In tetrahydrofuran at 20℃; Stage #2: With pyridine In tetrahydrofuran at 0℃; for 1h; | 100% |
In tetrahydrofuran at 0 - 20℃; for 6h; | 70% |
With pyridine In dichloromethane at 20℃; for 3h; Inert atmosphere; | |
In dichloromethane |
Conditions | Yield |
---|---|
With pyridine In dichloromethane | 99% |
With pyridine In dichloromethane at 20℃; for 6h; | 97% |
With pyridine In dichloromethane at 20℃; for 6h; | 97% |
tert-butylchlorodiphenylsilane
diosgenin
3-O-(tert-butyldiphenylsilyl)diosgenin
Conditions | Yield |
---|---|
With 1H-imidazole In N,N-dimethyl-formamide at 20℃; | 99% |
With 1H-imidazole In N,N-dimethyl-formamide | 96% |
With 1H-imidazole In dichloromethane at 20℃; for 12h; | 93% |
tert-butyldimethylsilyl chloride
diosgenin
tert-butyldimethyl(((2’R,4S,5’R,6aR,6bS,8aS,8bR,9S,11aS,12aS,12bS)-5’,6a,8a,9-tetramethyl-1,3,3’,4,4’,5,5’,6,6a,6b,6’,7,8,8a,8b,9,11a,12,12a,12b-icosahydrospiro[naphtho[2’,1’:4,5]indeno[2,1-b]furan-10,2’-pyran]-4-yl)oxy)silane
Conditions | Yield |
---|---|
With 1H-imidazole In dichloromethane; N,N-dimethyl-formamide at 20℃; for 2h; Inert atmosphere; | 99% |
With 1H-imidazole; dmap In N,N-dimethyl-formamide at 50℃; for 0.5h; | 99% |
With 1H-imidazole; dmap In N,N-dimethyl-formamide at 50℃; for 0.5h; | 98% |
Conditions | Yield |
---|---|
With hydrogen; palladium dihydroxide In ethanol; dichloromethane | 99% |
With hydrogen; acetic acid; palladium on activated charcoal In ethanol; dichloromethane at 20℃; under 760 Torr; for 12h; | 93% |
With 5% Pd/C; hydrogen In ethyl acetate at 20℃; under 3750.38 Torr; | |
With 5%-palladium/activated carbon; hydrogen In methanol at 20℃; for 3h; |
2,3,4,6-tetra-O-benzoyl-D-glucopyranosyl ortho-(hex-1-ynyl)benzoate
diosgenin
diosgenyl 2,3,4,6-O-tetra-benzoyl-β-D-glucuronopyranoside
Conditions | Yield |
---|---|
trifluoromethanesulfonyloxy(triphenylphosphine)gold(I) In dichloromethane at 20℃; | 99% |
3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl chloride
diosgenin
diosgenin 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranoside
Conditions | Yield |
---|---|
Stage #1: diosgenin With 2,4,6-trimethyl-pyridine; silver trifluoromethanesulfonate In dichloromethane at 20℃; for 0.166667h; Molecular sieve; Inert atmosphere; Stage #2: 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl chloride In dichloromethane at 20℃; for 20h; Molecular sieve; Inert atmosphere; | 99% |
diosgenin
Conditions | Yield |
---|---|
With (triphenyl phosphite)gold(I) chloride; silver tetrakis(pentafluorophenyl)borate In dichloromethane at 0℃; for 0.5h; Molecular sieve; | 99% |
Conditions | Yield |
---|---|
Stage #1: acetic anhydride With aluminum (III) chloride at 20℃; for 0.25h; Green chemistry; Stage #2: diosgenin at 140℃; for 3h; Reagent/catalyst; Green chemistry; | 98% |
With pyridine; ammonium chloride Reflux; | 86% |
Ring cleavage; acetylation; Heating; | 56.3% |
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide at 90℃; | 98% |
Stage #1: diosgenin With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide at 20℃; for 1h; Stage #2: benzyl bromide In tetrahydrofuran; N,N-dimethyl-formamide Heating; Further stages.; | 97% |
With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide Heating; | 96% |
With tetra-(n-butyl)ammonium iodide; sodium hydride In tetrahydrofuran for 16h; Heating; | 90% |
With sodium hydride |
3,4,6-Tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl bromide
diosgenin
diosgenyl 3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxy-carbonylamino)-β-D-glucopyranoside
Conditions | Yield |
---|---|
Stage #1: diosgenin With silver trifluoromethanesulfonate In diethyl ether; dichloromethane at 20℃; for 0.166667h; Inert atmosphere; Stage #2: 3,4,6-Tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl bromide In diethyl ether; dichloromethane at 20℃; for 20h; Inert atmosphere; | 98% |
N-(tert-butyloxycarbonyl)-L-isoleucine
diosgenin
Conditions | Yield |
---|---|
Stage #1: N-(tert-butyloxycarbonyl)-L-isoleucine With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 0.166667h; Stage #2: diosgenin In dichloromethane at 20℃; for 24h; | 98% |
t-Boc-L-valine
diosgenin
Conditions | Yield |
---|---|
Stage #1: t-Boc-L-valine With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 0.166667h; Stage #2: diosgenin In dichloromethane at 20℃; for 24h; | 98% |
Conditions | Yield |
---|---|
Stage #1: N-tert-butoxycarbonyl-L-methionine With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 0.166667h; Stage #2: diosgenin In dichloromethane at 20℃; for 24h; | 98% |
Conditions | Yield |
---|---|
With sodium cyanoborohydride In acetic acid for 2.5h; Ring cleavage; | 97% |
With sodium cyanoborohydride; propionic acid at 30℃; for 40h; Time; Inert atmosphere; | 78% |
With lithium aluminium tetrahydride; aluminium trichloride In diethyl ether | 59% |
Multi-step reaction with 2 steps 1: DMAP; Et3N 2: LiAlH4; AlCl3 View Scheme | |
Multi-step reaction with 4 steps 1: DMAP; Et3N 2: LiAlH4; AlCl3 3: pyridine 4: 32 percent / aq. tetrabutylammonium tetrafluoroborate / tetrahydrofuran / Electrochemical reaction View Scheme |
2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl N-tosyl benzimidate
diosgenin
diosgenyl 2,3,4-tri-O-benzoyl-α-L-rhamnoside
Conditions | Yield |
---|---|
Stage #1: 2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl N-tosyl benzimidate; diosgenin In dichloromethane for 0.5h; Molecular sieve; Inert atmosphere; Stage #2: With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0℃; for 2h; Molecular sieve; Inert atmosphere; | 97% |
Conditions | Yield |
---|---|
With (triphenyl phosphite)gold(I) chloride; silver tetrakis(pentafluorophenyl)borate at 80℃; Inert atmosphere; Molecular sieve; Darkness; | 97% |
diosgenin
Conditions | Yield |
---|---|
With (triphenyl phosphite)gold(I) chloride; silver tetrakis(pentafluorophenyl)borate In dichloromethane at 0℃; for 0.5h; Molecular sieve; | 97% |
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide at 100℃; under 760.051 Torr; for 0.5h; Concentration; | 96.2% |
3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-(α/β)-D-glucopyranosyl trichloroacetimidate
diosgenin
diosgenin 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranoside
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at -20℃; for 1h; Molecular sieve; | 96% |
Conditions | Yield |
---|---|
With zinc(II) chloride at 20℃; for 72h; | 96% |
acetic anhydride
diosgenin
(20S,25R)-23-acetyl-22,26-epoxycholesta-5,22-diene-3β,16β-diyl diacetate
Conditions | Yield |
---|---|
With zinc(II) chloride at 20℃; for 40h; | 95% |
With boron trifluoride diethyl etherate at 20℃; for 0.833333h; Ring cleavage; acetylation; | 85% |
With boron trifluoride diethyl etherate at 20℃; for 0.166667h; | 85% |
With boron trifluoride diethyl etherate |
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