Ethyldienedione

Base Information

• Chemical Name: Ethyldienedione
• CAS No.: 20799-05-7
• Molecular Formula: C19H24O2
• Molecular Weight: 284.40
• Mol file: 20799-05-7.mol

Synonyms:13-Ethylgona-4,9-diene-3,17-dione;

Chemical Property of Ethyldienedione

Chemical Property:

• Melting Point: 143 - 145 °C
• PSA: 34.14000
• LogP: 4.15160

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Ethyldienedione

There total 6 articles about Ethyldienedione 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: 57.0%

DL-13β-ethyl-gon-5(10)-ene-3,17-dione (4222-96-2) → DL-13β-ethyl-gona-4,9-diene-3,17-dione (20799-05-7)

Guidance literature:

With pyridinium hydrobromide perbromide; In pyridine; Ambient temperature;

DOI:10.1080/00397919508015460

Reference yield: 43.6%

dl-18-Methyl-4.9-oestradien-3.17-dion (793-59-9,20799-05-7) → (8S,14S)-13-Ethyl-17-hydroxy-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-cyclopenta[a]phenanthren-3-one (793-57-7,4222-94-0) + (8R,13R,14R)-13-Ethyl-1,6,7,8,11,12,13,14,15,16-decahydro-2H-cyclopenta[a]phenanthrene-3,17-dione (793-59-9,20799-05-7)

Guidance literature:

for 48h; Hansenula capsulate (IFO 984), fermentation. Var_.: Saccharomyces chevalieri (NCYC 91);

DOI:10.1016/S0040-4039(01)80845-5

Reference yield:

13β-ethyl-3-methoxygona-2,5(10)-diene-17-one (2322-77-2) → DL-13β-ethyl-gona-4,9-diene-3,17-dione (20799-05-7)

Guidance literature:

Multi-step reaction with 2 steps

1: 87 percent / oxalic acid on silica gel / CH₂Cl₂; H₂O / 0.33 h / Ambient temperature

2: 57 percent / pyridinium bromide perbromide / pyridine / Ambient temperature

With pyridinium hydrobromide perbromide; oxalic acid; In pyridine; dichloromethane; water;

DOI:10.1080/00397919508015460

upstream raw materials:

DL-13β-ethyl-gon-5(10)-ene-3,17-dione

13β-ethyl-3-methoxygona-2,5(10)-diene-17-one

dl-18-Methyl-4.9-oestradien-3.17-dion

Downstream raw materials:

(8S,14S)-13-Ethyl-17-hydroxy-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-cyclopenta[a]phenanthren-3-one

(8R,13R,14R)-13-Ethyl-1,6,7,8,11,12,13,14,15,16-decahydro-2H-cyclopenta[a]phenanthrene-3,17-dione

DL-13β-ethyl-11β-hydroxy-gon-4-en-3,17-dione