5-Ethylidene-2-norbornene, (Z)-

Base Information

• Chemical Name: 5-Ethylidene-2-norbornene, (Z)-
• CAS No.: 28304-66-7
• Molecular Formula: C9H12
• Molecular Weight: 120.1916
• European Community (EC) Number: 240-347-7
• ICSC Number: 0473
• UN Number: 1993,1992
• UNII: 85015B2V0R
• Wikipedia: Ethylidene_norbornene
• Wikidata: Q27269568
• Mol file: 28304-66-7.mol

Synonyms:5,2-ENB;5-ethylidene-2-norbornene

Chemical Property of 5-Ethylidene-2-norbornene, (Z)-

Chemical Property:

• Vapor Pressure: 5.98mmHg at 25°C
• Refractive Index: 1.5000 (estimate)
• Boiling Point: 146°C at 760 mmHg
• Flash Point: 34.2°C
• PSA: 0.00000
• Density: 1.038g/cm³
• LogP: 2.52870
• XLogP3: 2.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 120.093900383
• Heavy Atom Count: 9
• Complexity: 175
• Transport DOT Label: Flammable Liquid

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Plastics & Rubber -> Other Monomers
• Canonical SMILES: CC=C1CC2CC1C=C2
• Isomeric SMILES: C/C=C\1/CC2CC1C=C2
• Inhalation Risk: A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20 °C.
• Effects of Short Term Exposure: The substance is irritating to the eyes, skin and respiratory tract. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis.
• Effects of Long Term Exposure: The substance may have effects on the liver and kidneys.

Technology Process of 5-Ethylidene-2-norbornene, (Z)-

There total 3 articles about 5-Ethylidene-2-norbornene, (Z)- 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:

5-vinyl-2-norbornene (3048-64-4) → 5-ethylidene-2-norbornene (28304-66-7)

Guidance literature:

With aluminum oxide; sodium; In n-heptane; at 90 ℃;

Reference yield:

5-vinyl-2-norbornene (3048-64-4) → 5-ethylidene-2-norbornene (28304-67-8) + 5-ethylidene-2-norbornene (28304-66-7)

Guidance literature:

γ-Al2O3-NaOH-Na; at 25 ℃; for 3h; Product distribution;

DOI:10.1246/cl.1987.585

Reference yield:

→ 5-ethylidene-2-norbornene (28304-66-7)

Guidance literature:

upstream raw materials:

5-vinyl-2-norbornene

Refernces

• 1、 Baba, Toshihide,Handa, Haruhisa,Ono, Yoshio. "Superbase Character of Alumina loaded with Potassium by Impregnation from Ammoniacal Solution". . p. 187 - 192. Retrieved 1994.