3-methylidenecyclopentene

Base Information

• Chemical Name: 3-methylidenecyclopentene
• CAS No.: 930-26-7
• Molecular Formula: C6H8
• Molecular Weight: 80.1295
• Hs Code.: 2902199090
• Mol file: 930-26-7.mol

Synonyms:3-Methylene-1-cyclopentene;3-Methylenecyclopentene

Chemical Property of 3-methylidenecyclopentene

Chemical Property:

• Vapor Pressure: 80mmHg at 25°C
• Boiling Point: 84.7°Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: 0.82g/cm³
• LogP: 1.89260

Purity/Quality:

99%min ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3-methylidenecyclopentene

There total 16 articles about 3-methylidenecyclopentene 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: 98.8%

allylidenecyclopropane (80119-20-6) → methylcyclopentadiene (96-39-9) + 3-methylene-1-cyclopentene (930-26-7)

Guidance literature:

at 290 ℃; under 0.001 Torr; Rate constant;

Reference yield: 47.3%

1-Methylene-2-vinylcyclopropane (19995-92-7) → 3-methylene-1-cyclopentene (930-26-7) + (E)-1-Allyliden-3-methylen-5-vinyl-cyclohexan (80119-24-0) + (Z)-6-Allyliden-4-methylen-1-cycloocten (80119-25-1,80119-26-2) + (E)-6-Allyliden-4-methylen-1-cycloocten (80119-25-1,80119-26-2)

Guidance literature:

With tris(1-methylethyl)phosphine; bis(dibenzylideneacetone)-palladium⁽⁰⁾; at 70 ℃; for 20h; Further byproducts given. Yields of byproduct given;

Reference yield: 47.3%

1-Methylene-2-vinylcyclopropane (19995-92-7) → 3-methylene-1-cyclopentene (930-26-7) + 5-Allyliden-1-vinylspiro<2.4>heptan (80128-72-9) + (E)-1-Allyliden-3-methylen-5-vinyl-cyclohexan (80119-24-0) + (E)-6-Allyliden-4-methylen-1-cycloocten (80119-25-1,80119-26-2)

Guidance literature:

With tris(1-methylethyl)phosphine; bis(dibenzylideneacetone)-palladium⁽⁰⁾; at 70 ℃; for 20h; Yield given. Further byproducts given. Yields of byproduct given;

upstream raw materials:

1-acetoxy-1-acetoxymethyl-cyclopentane

hex-1-en-5-yne

1,2,5-hexatriene

tricyclo<3.1.0.0^2,6>hexane

Refernces

• 1、 Aitken, R. Alan,Hodgson, Philip K.G.,Morrison, John J.,Oyewale, Adebayo O.. "Flash vacuum pyrolysis over magnesium. Part 1 - Pyrolysis of benzylic, other aryl/alkyl and aliphatic halides". . p. 402 - 415. Retrieved 2007/10/03.
• 2、 Doyle, Michael P.,Dyatkin, Alexey B.,Kalinin, Alexey V.,Ruppar, Daniel A.,Martin, Stephen F.,Spaller, Mark R.,Liras, Spiros. "Highly selective enantiomer differentiation in intramolecular cyclopropanation reactions of racemic secondary allylic diazoacetates". . p. 11021 - 11022. Retrieved 2007/10/03.