1759-81-5

Basic information

• Product Name: 4-Methylcyclopentene.
• Synonyms: 4-Methylcyclopentene.;4-Methyl-1-cyclopentene
• CAS NO: 1759-81-5
• Molecular Formula: C₆H₁₀
• Molecular Weight: 82.14
• Mol File: 1759-81-5.mol
• Article Data: 11

Chemical Properties

• Melting Point: -160.85°C
• Boiling Point: 65.15°C
• Appearance: /
• Density: 0.7630
• Vapor Pressure: 168mmHg at 25°C
• Refractive Index: 1.4184
• CAS DataBase Reference: 4-Methylcyclopentene.(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Methylcyclopentene.(1759-81-5)
• EPA Substance Registry System: 4-Methylcyclopentene.(1759-81-5)

Safety Data

• Hazardous Substances Data: 1759-81-5(Hazardous Substances Data)

Usage

InChI:InChI=1/C6H10/c1-6-4-2-3-5-6/h2-3,6H,4-5H2,1H3

Upstream product

• 693-89-0 1-methylcyclopent-1-ene 
• 592-42-7 1,5-Hexadien 
• 187737-37-7 propene 
• 108-93-0 cyclohexanol 
• 110-83-8 cyclohexene 
• 74972-56-8 (hex-5-en-1-yloxy)benzene 
• 18729-48-1 3-methylcyclopentanol 
• 694-01-9 bicyclo{3.1.0}hex-2-ene 

Downstream Products

• 1757-42-2 3-methyl-cyclopentanone 
• 930-59-6 (1S*,3S*)-3-methylcyclopentan-1-ol 
• 89489-31-6 1,2-epoxy-4-methyl-cyclopentane 

Relevant articles and documents

Nickel Hydride Complexes Supported by a Pyrrole-Derived Phosphine Ligand

The synthesis of two nickel hydride complexes bearing the pyrrole-derived phosphine ligand CyPNH (2-(dicyclohexylphosphino)methyl-1H-pyrrole) was developed, namely, (κP-CyPNH)(κP,κN-CyPN)NiH and the acid-stable trans-(κP-CyPNH)2Ni(OAc)H·HOAc. (κP-CyPNH)(κP,κN-CyPN)NiH stoichiometrically reduces benzaldehyde and acetophenone in a metal-ligand cooperative manner and catalytically dimerizes ethylene and cycloisomerizes 1,5-cyclooctadiene and 1,5-hexadiene. trans-(κP-CyPNH)2Ni(OAc)H·HOAc, available from the protonation of (κP-CyPNH)(κP,κN-CyPN)NiH with acetic acid, catalyzes the cycloisomerization of 1,5-cyclooctadiene more effectively and produces the less thermodynamically favored cycloisomers of 1,5-cyclooctadiene.

Kinetics and modeling of the thermal reaction of propene at 800 K. Part III. Propene in the presence of small amounts of oxygen

The thermal reaction of propene was studied around 800 K in the presence of less than 20% O. Initially, the production of H2, CH4, C2H4, C2H6, allene, C3H8, 1,3-butadiene, butenes, 3- and 4-methylcyclopentene, a mixture of 1,4- and 1,5-hexadienes, methylcyclopentane, 4-methylpent-1-ene, and hex-1-ene, was observed along with H2O2, CO, and small quantities of ethanal and CO2. O increases the initial production of H and of most hydrocarbons and, particularly, that of C6 dienes and of cyclenes. A kinetic scheme is proposed in which chains are primarily initiated by a bimolecular step which competes with the second-order initiation of propene pyrolysis. Modeling of the reaction based on the proposed scheme accounts well for the concentration-time profiles.

Copper(II) Triflate, a New Reagent for Mild Dehydration of Alcohols: Synthetic Usefulness and Mechanistic Insight

The effectiveness of copper(II) triflate (copper(II) trifluoromethanesulfonate) as a new dehydrating reagent for a variety of alcohols has been demonstrated.Based on several control experiments, a possible mechanism is suggested.