17,20:20,21-Bis[Methylenebis(oxy)]-pregna-1,4-diene-3,11-dione

Base Information

• Chemical Name: 17,20:20,21-Bis[Methylenebis(oxy)]-pregna-1,4-diene-3,11-dione
• CAS No.: 26341-55-9
• Molecular Formula: C23H28O6
• Molecular Weight: 400.46482
• Mol file: 26341-55-9.mol

Synonyms:17,20:20,21-Bis(Methylenedioxy)pregna-1,4-diene-3,11-dione;17,20:20,21-Bis[Methylenebis(oxy)]-pregna-1,4-diene-3,11-dione;17,20:20,21-Bis(Methylenedioxy)pregna-1,4-diene-3,11-dione (Mixture of DiastereoMers)

Chemical Property of 17,20:20,21-Bis[Methylenebis(oxy)]-pregna-1,4-diene-3,11-dione

Chemical Property:

• Melting Point: 214-217 °C
• Boiling Point: 562.0±50.0 °C(Predicted)
• PSA: 71.06000
• Density: 1.32±0.1 g/cm3(Predicted)
• LogP: 2.91700

Purity/Quality:

99% ^*data from raw suppliers

17,20:20,21-Bis(methylenedioxy)pregna-1,4-diene-3,11-dione(MixtureofDiastereomers) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: Protected Prednisone (P703780). Adrenocortical steroid.

Technology Process of 17,20:20,21-Bis[Methylenebis(oxy)]-pregna-1,4-diene-3,11-dione

There total 5 articles about 17,20:20,21-Bis[Methylenebis(oxy)]-pregna-1,4-diene-3,11-dione 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: 77.0%

formaldehyd (50-00-0,30525-89-4,61233-19-0) + Prednison (53-03-2) → prednisone-BMD (26341-55-9)

Guidance literature:

With hydrogenchloride; In chloroform; for 16h; Ambient temperature;

Reference yield:

formaldehyd (50-00-0,30525-89-4,61233-19-0) → prednisone-BMD (26341-55-9)

Guidance literature:

With hydrogenchloride; chloroform;

DOI:10.1021/ja01539a059

Reference yield:

→ 17,20;20,21-Bis-methylendioxy-pregnadien-(1,4)-dion-(3,11) (26341-55-9,67226-27-1,67254-01-7)

Guidance literature:

Prednison, Formalin + konz. HCl in Chlf.;

DOI:10.1021/jo01351a064

upstream raw materials:

formaldehyd

Prednison

Downstream raw materials:

cortisol-BMD

3-hydroxy-9,10-seco-17α,20;20,21-bismethylenedioxypregna-1,(10),2,4-trien-11-one

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