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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem 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

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Shanghai Upbio Tech Co.,Ltd

1.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

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

(25R)-Spirost-4-en-3,6-dione CAS:3730-84-5 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 orga

(25R)-Spirost-4-en-3,6-dione CAS:3730-84-5

Cas:3730-84-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Zibo Hangyu Biotechnology Development Co., Ltd

Zibo 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

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Antimex Chemical Limied

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

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hangzhou Fandachem Co.,Ltd

(25R)-Spirost-4-en-3,6-dione cas 3730-84-5Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

(25R)-Spirost-4-en-3,6-dione cas 3730-84-5

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Other

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Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

HENAN SUNLAKE ENTERPRISE CORPORATION

(25R)-Spirost-4-en-3,6-dione Basic information Product Name: (25R)-Spirost-4-en-3,6-dione Synonyms: (25R)-Spirost-4-en-3,6-dione CAS: 37

3730-84-5 C27H38O4 (25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:10 Gram

Negotiable

Type:Trading Company

inquiry

Shanghai united Scientific Co.,Ltd.

United Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chungking Joyinchem Co., Ltd.

Joyinchem have been committed to chemical supply for several years and have built good cooperation records with multinational chemical corporations and importers from all over the world. Our services include:-Spot goods-Contract manufacturing-Custom

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Nanjing Raymon Biotech Co., Ltd.

(25R)-Spirost-4-en-3,6-dioneAppearance:Pls see the Details Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By Sea,by Air,By courier like D

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Ruishun Trade Co.,Ltd

Supply top quality products with a reasonable price Application:api

3730-84-5

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Taiyan Trading Co., Ltd

Port: Shanghai or Ningbo Payment Method: L/C,D/P,T/T,Western Union For more imformation please contact us.Appearance:Yellow crystalline powder Package:Carton(The aluminum foil bags , plastic bags inside) Transportation:Air or sea

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chemical Co.Ltd

Manufacturer,strong R&D,professional team Storage:Store in a cool, dry place. Store in a tightly closed container. Package:according to your requirement Application:ZhiShang Chemical is owned by ZhiShang Group, is a professional new-type chemicals en

(25R)-Spirost-4-en-3,6-dione

Cas:3730-84-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

diosgenin
512-04-9

diosgenin

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
With jones reagent In acetone at 15℃; for 0.5h;95%
With Jones reagent In acetone at 10 - 20℃; Jones oxidation;95%
With Jones reagent In dichloromethane; acetone at -10 - 10℃;85%
With pyridinium chlorochromate In dichloromethane at 20℃; for 5h;55%
Multi-step reaction with 3 steps
1: acetic acid; aqueous hydrogen peroxide / Erwaermen des Reaktionsprodukts mit aethanol. Kalilauge
2: chromium (VI)-oxide; acetic acid
3: 280 °C / unter vermindertem Druck
View Scheme
(25R)-6β-hydroxy-spirost-4-en-3-one
6877-76-5

(25R)-6β-hydroxy-spirost-4-en-3-one

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
With chromium(VI) oxide; acetic acid
(25R)-5α-hydroxy-5α-spirosta-3,6-dione
74395-54-3

(25R)-5α-hydroxy-5α-spirosta-3,6-dione

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
at 280℃; unter vermindertem Druck;
(25R)-spirost-4-en-3β-ol

(25R)-spirost-4-en-3β-ol

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
With chromium(VI) oxide; acetic acid
acetic acid
64-19-7

acetic acid

(25R)-6β-hydroxy-spirost-4-en-3-one
6877-76-5

(25R)-6β-hydroxy-spirost-4-en-3-one

chromium (VI)-oxide

chromium (VI)-oxide

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

water
7732-18-5

water

acetic acid
64-19-7

acetic acid

diosgenin
512-04-9

diosgenin

chromium (VI)-oxide

chromium (VI)-oxide

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

(25R)-spirostan-22α-O-3β,5α,6β-triol
56816-69-4

(25R)-spirostan-22α-O-3β,5α,6β-triol

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: chromium (VI)-oxide; acetic acid
2: 280 °C / unter vermindertem Druck
View Scheme
Multi-step reaction with 5 steps
1: pyridine
2: thionyl chloride; pyridine
3: aqueous methanol. KOH-solution
4: manganese (IV)-oxide; chloroform
5: aqueous acetic acid; chromium (VI)-oxide
View Scheme
(25R)-5α,6α-epoxyspirostan-22α-O-3β-ol
3514-60-1

(25R)-5α,6α-epoxyspirostan-22α-O-3β-ol

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: hydrogen chloride; ethanol
2: chromium (VI)-oxide; acetic acid
3: 280 °C / unter vermindertem Druck
View Scheme
(25R)-spirost-4-ene-3β,6β-diol

(25R)-spirost-4-ene-3β,6β-diol

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: manganese (IV)-oxide; chloroform
2: aqueous acetic acid; chromium (VI)-oxide
View Scheme
(25R)-3-acetoxy-spirosta-3,5-diene
6877-75-4

(25R)-3-acetoxy-spirosta-3,5-diene

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: monoperoxyphthalic acid; diethyl ether / Lichtausschluss
2: aqueous acetic acid; chromium (VI)-oxide
View Scheme
(25R)-3β,6β-diacetoxy-spirost-4-ene

(25R)-3β,6β-diacetoxy-spirost-4-ene

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: aqueous methanol. KOH-solution
2: manganese (IV)-oxide; chloroform
3: aqueous acetic acid; chromium (VI)-oxide
View Scheme
(25R)-5α-spirostan-3β,5,6β-triol 3,6-diacetate
74395-53-2

(25R)-5α-spirostan-3β,5,6β-triol 3,6-diacetate

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: thionyl chloride; pyridine
2: aqueous methanol. KOH-solution
3: manganese (IV)-oxide; chloroform
4: aqueous acetic acid; chromium (VI)-oxide
View Scheme
(25R)-spirost-4-ene-3-one
6870-79-7

(25R)-spirost-4-ene-3-one

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: benzene; isopropenyl acetate; toluene-4-sulfonic acid
2: monoperoxyphthalic acid; diethyl ether / Lichtausschluss
3: aqueous acetic acid; chromium (VI)-oxide
View Scheme
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

(25R)-5α-spirostan-3,6-dione
3514-59-8

(25R)-5α-spirostan-3,6-dione

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethyl acetate at 40℃; for 48h;80%
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

C27H40N2O4

C27H40N2O4

Conditions
ConditionsYield
With pyridine; hydroxylamine hydrochloride In ethanol for 1h; Reflux;77%
2,3,4,6-tetra-O-benzoyl-α,b-D-mannopyranosyl trichloroacetimidate
934492-05-4

2,3,4,6-tetra-O-benzoyl-α,b-D-mannopyranosyl trichloroacetimidate

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

C61H64O13

C61H64O13

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0℃; for 1h; Inert atmosphere; Molecular sieve;68%
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

(25R)-4-en-2α-bromo-spirosta-3,6-dione

(25R)-4-en-2α-bromo-spirosta-3,6-dione

Conditions
ConditionsYield
With phenyl trimethylammonium perbromide In tetrahydrofuran at 20℃; for 0.166667h;67%
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

(25R)-4,5α-epoxy-5α-spirosta-3,6-dione
1268164-20-0

(25R)-4,5α-epoxy-5α-spirosta-3,6-dione

Conditions
ConditionsYield
With dihydrogen peroxide; sodium hydroxide In methanol; water at 15℃; for 1h;63%
acetic acid
64-19-7

acetic acid

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

zinc-powder

zinc-powder

(25R)-5α-spirostan-3,6-dione

(25R)-5α-spirostan-3,6-dione

(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

(25R)-2α-bromo-4,5α-epoxy-5α-spirosta-3,6-dione
1268164-21-1

(25R)-2α-bromo-4,5α-epoxy-5α-spirosta-3,6-dione

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dihydrogen peroxide; sodium hydroxide / methanol; water / 1 h / 15 °C
2: phenyltrimethylammonium tribromide / tetrahydrofuran / 0.17 h / 20 °C
View Scheme
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

C27H37N3O5

C27H37N3O5

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dihydrogen peroxide; sodium hydroxide / methanol; water / 1 h / 15 °C
2: phenyltrimethylammonium tribromide / tetrahydrofuran / 0.17 h / 20 °C
3: sodium azide; potassium iodide / N,N-dimethyl-formamide / 4 h / 50 °C
View Scheme
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

C27H39NO5

C27H39NO5

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: dihydrogen peroxide; sodium hydroxide / methanol; water / 1 h / 15 °C
2: phenyltrimethylammonium tribromide / tetrahydrofuran / 0.17 h / 20 °C
3: sodium azide; potassium iodide / N,N-dimethyl-formamide / 4 h / 50 °C
4: triphenylphosphine / tetrahydrofuran / Inert atmosphere
View Scheme
(22S,25R)-spirost-4-en-3,6-dione
3730-84-5

(22S,25R)-spirost-4-en-3,6-dione

di(25R-6-oxo-4,5α-epoxy-5α-spirostano[2,3-b:2',3'-e])pyrazine
1268164-22-2

di(25R-6-oxo-4,5α-epoxy-5α-spirostano[2,3-b:2',3'-e])pyrazine

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: dihydrogen peroxide; sodium hydroxide / methanol; water / 1 h / 15 °C
2: phenyltrimethylammonium tribromide / tetrahydrofuran / 0.17 h / 20 °C
3: sodium azide; potassium iodide / N,N-dimethyl-formamide / 4 h / 50 °C
4: triphenylphosphine / tetrahydrofuran / Inert atmosphere
5: toluene-4-sulfonic acid / ethanol / 20 °C / 760.05 Torr
View Scheme

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