delta8,9-Dehydroestrone

Base Information

• Chemical Name: delta8,9-Dehydroestrone
• CAS No.: 35419-83-1
• Molecular Formula: C₁₈H₂₀O₂
• Molecular Weight: 268.356
• NSC Number: 124415
• Mol file: 35419-83-1.mol

Synonyms:delta8,9-dehydroestrone;NSC124415;SCHEMBL13474616;NSC-124415;35419-83-1;FT-0665613

Chemical Property of delta8,9-Dehydroestrone

Chemical Property:

• Vapor Pressure: 4.99E-09mmHg at 25°C
• Boiling Point: 458.5°C at 760 mmHg
• Flash Point: 195.2°C
• Density: 1.23g/cm³
• XLogP3: 2.4
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 268.146329876
• Heavy Atom Count: 20
• Complexity: 478

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC12CCC3=C(C1CCC2=O)CCC4=C3C=CC(=C4)O

Technology Process of delta8,9-Dehydroestrone

There total 11 articles about delta8,9-Dehydroestrone 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:

rac-3,17-β-Dihydroxy-oestra-1,3,5(10),8-tetraen (23392-52-1,23392-54-3) → rac-3-hydroxy-estratetraen-(A.8)-one-(17) (474-87-3,2911-90-2,35419-82-0,35419-83-1)

Guidance literature:

With aluminum isopropoxide; butanone;

DOI:10.1016/S0040-4020(01)92768-1

Reference yield:

→ rac-3-hydroxy-13α-estratetraen-(A.8)-one-(17) (474-87-3,2911-90-2,35419-82-0,35419-83-1)

Guidance literature:

With pyridine hydrochloride; at 180 ℃;

DOI:10.1002/hlca.19480310514

Reference yield:

3-Hydroxy-oestrapentaen-(1,3,5(10),8,14)-on-(17) (33818-63-2) → rac-3-hydroxy-estratetraen-(A.8)-one-(17) (474-87-3,2911-90-2,35419-82-0,35419-83-1)

Guidance literature:

With hydrogen; Lindlar's catalyst;

DOI:10.1039/jr9630005072

upstream raw materials:

equilin

rac-3,17-β-Dihydroxy-oestra-1,3,5(10),8-tetraen

3-Hydroxy-oestrapentaen-(1,3,5⁽¹⁰⁾,8,14)-on-⁽¹⁷⁾

2-Methylcyclopentane-1,3-dione