3β-Acetoxypregna-5-ene-20-one ethylene acetal

Base Information

• Chemical Name: 3β-Acetoxypregna-5-ene-20-one ethylene acetal
• CAS No.: 40148-10-5
• Molecular Formula: C25H38O4
• Molecular Weight: 402.574
• Mol file: 40148-10-5.mol

Synonyms:3β-Acetoxypregna-5-ene-20-one ethylene acetal;3β-Acetyloxypregn-5-en-20-one ethylene acetal

Chemical Property of 3β-Acetoxypregna-5-ene-20-one ethylene acetal

Chemical Property:

• Melting Point: 153 - 156 °C (methanol)
• PSA: 44.76000
• LogP: 5.26010

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

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Technology Process of 3β-Acetoxypregna-5-ene-20-one ethylene acetal

There total 5 articles about 3β-Acetoxypregna-5-ene-20-one ethylene acetal which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 78.0%

Pregnenolone acetate (1778-02-5) + ethylene glycol (107-21-1) → (3S,8S,9S,10R,13S,14S,17S)-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)-2,3,4,7, 8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate (40148-10-5)

Guidance literature:

With pyridinium p-toluenesulfonate; In benzene; at 110 ℃; for 12h; Dean-Stark; Reflux;

Reference yield:

→ 20-Aethylendioxy-3β-acetoxy-pregnen-(5) (40148-10-5)

Guidance literature:

3β-Acetoxy-pregnen-(5), Glykol, Orthoameisensaeure-ester in Ggw. v. p-Toluolsulfonsaeure;

Reference yield:

→ (3S,8S,9S,10R,13S,14S,17S)-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)-2,3,4,7, 8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate (40148-10-5)

Guidance literature:

3β-Acetoxy-pregn-5-en-20-on, Ethylenglykol, p-Toluolsulfonsaeure, Δ;

DOI:10.1139/v68-123

upstream raw materials:

Pregnenolone acetate

ethylene glycol

Downstream raw materials:

Pregnenolone acetate

3β,21-diacetoxypregn-5-en-20-one

20-ethylenedioxy-4-pregnen-3-one

5α-Pregnan-3β,6α-diol-20-on-diacetat

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