3-Methylcyclohexene an organic compound consisting of cyclohexene with a methyl group substituent adjacent to the alkene group. Two other structural isomers are known: 1-methylcyclohexene and 4-methylcyclohexene. All are colorless volatile liquids classified as a cyclic olefins. They are specialized reagents.

3-Methylcyclohexene
Names
IUPAC name
3-Methylcyclohexene
Systematic IUPAC name
3-Methylcyclohexene
Identifiers
3D model (JSmol)
1848550
ChemSpider
EC Number
  • 209-717-5
UNII
UN number 3295
  • InChI=1S/C7H12/c1-7-5-3-2-4-6-7/h3,5,7H,2,4,6H2,1H3
    Key: UZPWKTCMUADILM-UHFFFAOYSA-N
  • CC1CCCC=C1
Properties
C7H12
Molar mass 96.173 g·mol−1
Appearance colorless liquid
Density 0.805 g/mL
Melting point −124 °C (−191 °F; 149 K)
Boiling point 104 °C (219 °F; 377 K)
low
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation markGHS08: Health hazard
Warning
H225, H304, H315, H319, H335
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P331, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
Flash point −3 °C (27 °F; 270 K)
Safety data sheet (SDS) MSDS (1-methylcyclohexene)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Synthesis

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3-Methylcyclohexene is produced from 3-methylcyclohexanone.[1]

References

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  1. ^ Elphimoff-Felkin, I.; Sarda, P. (1977). "Reductive Cleavage of Allylic Alcohols, Ethers, or Acetates to Olefins: 3-Methylcyclohexene". Organic Syntheses. 56: 101. doi:10.15227/orgsyn.056.0101.