5696-23-1

Basic information

• Product Name: 19-norandrost-4-ene-3,17-dione
• CAS NO: 5696-23-1
• Molecular Weight: 272.387
• Mol File: 5696-23-1.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: 19-norandrost-4-ene-3,17-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 19-norandrost-4-ene-3,17-dione(5696-23-1)
• EPA Substance Registry System: 19-norandrost-4-ene-3,17-dione(5696-23-1)

Safety Data

• Hazardous Substances Data: 5696-23-1(Hazardous Substances Data)

Upstream product

• 968-49-0 19-oxoandrostenedione 
• 434-22-0 rac-19-Nortestosteron 
• 100-84-5 1-methoxy-3-methyl-benzene 
• 75863-24-0 (1Ξ,5SR)-1-Methyl-2-oxo-5-vinylcyclopentan-1,3-dicarbonsaeure-dimethylester 
• 80868-65-1 2-Trimethylsilyl-1-(4-methoxy-2-methylphenyl)prop-2-en-1-ol 
• 75863-10-4 <(6Ξ,7SR)-6-Methyl-1,4-dioxaspiro<4.4>non-7-yl>essigsaeure-methylester 
• 75863-12-6 (6Ξ,7SR)-6-Methyl-7-vinyl-1,4-dioxaspiro<4.4>nonan 
• 75863-11-5 2-<(6Ξ,4SR)-6-Methyl-1,4-dioxaspiro<4.4>non-7-yl>ethanol 
• 80868-64-0 1-(4-Methoxy-2-methylphenyl)prop-2-en-1-ol 
• 80868-66-2 1-(4-Methoxy-2-methylphenyl)prop-2-en-1-on 
• 75863-25-1 2-Trimethylsilyl-1-(4-methoxy-2-methylphenyl)prop-2-en-1-on 
• 57069-78-0 <(1SR,2Ξ)-2-Methyl-3-oxocyclopentyl>essigsaeure-methylester 
• 63518-90-1 (2Ξ,3SR)-2-Methyl-3-vinylcyclopentan-1-on 
• 27060-75-9 4-bromo-3-methylanisole 

Downstream Products

• 2863-88-9 3-ethoxy-19-nor-3,5-androstadiene-17-one 
• 53-16-7 Estrone 

Relevant articles and documents

19-nor-4-androstene -3,17-dione method for the preparation of

The invention provides a method for preparing 19- nor-4-androstene-3, 17-diketone. The preparation method comprises the following step: with a compound I as a raw material, carrying out a Grignard reaction, an oxidation and ring-closure reaction and a reduction and ring-closure reaction, and the reaction route is shown as follows. The starting raw material of the preparation method is relatively cheap, the product yield is high and the production cost can be saved. The formula is described in the description.

Total synthesis of dl-spironolactone and dl-19-norspironolactne by biomimetic polyene cyclization methodology

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Photochemical route to (±)-estrone

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