26120-52-5

Basic information

• Product Name: 1,4-DIMETHYLCYCLOHEXA-1,3-DIENE
• Synonyms: 1,4-dimethyl-1,3-cyclohexadiene;1,4-DIMETHYLCYCLOHEXA-1,3-DIENE
• CAS NO: 26120-52-5
• Molecular Formula: C₈H₁₂
• Molecular Weight: 108.18
• Mol File: 26120-52-5.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 136.55°C
• Flash Point: 18.7°C
• Appearance: /
• Density: 0.8300
• Vapor Pressure: 9.11mmHg at 25°C
• Refractive Index: 1.4792
• CAS DataBase Reference: 1,4-DIMETHYLCYCLOHEXA-1,3-DIENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-DIMETHYLCYCLOHEXA-1,3-DIENE(26120-52-5)
• EPA Substance Registry System: 1,4-DIMETHYLCYCLOHEXA-1,3-DIENE(26120-52-5)

Safety Data

• Hazardous Substances Data: 26120-52-5(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Synthesis, p. 704, 1985 DOI: 10.1055/s-1985-31324

InChI:InChI=1/C8H12/c1-7-3-5-8(2)6-4-7/h3,5H,4,6H2,1-2H3

Upstream product

• 5259-65-4 4-methyl-3-cyclohexen-1-one 
• 106-42-3 para-xylene 
• 70837-28-4 1,4-dimethylcyclohex-3-en-1-ol 
• 4074-22-0 1,4-dimethyl-cyclohexa-1,4-diene 
• 49839-76-1 (Z)-2,5-dimethyl-1,3,5-hexatriene 
• 41233-74-3 (E)-2,5-dimethyl-1,3,5-hexatriene 
• 23359-01-5 2,5-dimethyl-hex-3-ene-2,5-diol 
• 70254-39-6 2,5-dimethyl-hexa-3,5-dien-2-ol 
• 1489-55-0 1-methyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester 
• 75-16-1 methylmagnesium bromide 

Downstream Products

• 61505-17-7 (+/-)-trichodiene 
• 61375-52-8 (2RS,1'SR)-2-(1',4'-dimethylcyclohex-3'-enyl)-2-methylcyclopentan-1-one 
• 124017-11-4 Toluene-4-sulfonic acid 3-((R)-1,2,4-trimethyl-3-oxo-bicyclo[2.2.2]oct-5-en-2-yl)-propyl ester 
• 135225-33-1 2,5-dimethylhexanne-1,6-diol 
• 106-42-3 para-xylene 

Relevant articles and documents

Construction of Quaternary Carbon Centers Using Organomolybdenum Chemistry

Two approaches are described for the construction of quaternary carbon centers using organomolybdenum complexes.The first involves carbon nucleophile addition to the methylated diene terminus of dicarbonyl(η5-indenyl)(1-4-η-1,4-dimethylcyclohexa-1,3-diene)molybdenum tetrafluoroborate (12).A wide range of nucleophiles add successfully to 12 giving gem-disubstituted cyclohexenylmolybdenum complex.This methodology, coupled with a lactonization/decomplexation reaction, has led to a short synthesis of 2-(2-hydroxy-1,4-dimethylcyclohex-3-enyl)propionic acid lactone(14), which has previously been employed as a key intermediate for trichothecene synthesis.The second method involves alkylation of cyano-stabilized carbanions generated from dicarbonyl(η5-cyclopentadienyl)(1-3-η-4-cyanocyclohexenyl)molybdenum and dicarbonyl(η5-cyclopentadienyl)(1-3-η-4-cyanocycloheptenyl)molybdenum.While a rather limited range of electrophiles could be used in this coupling reaction, it was found that stereochemical control is excellent and allows the construction of quaternary carbon centers with defined stereochemistry relative to other substituents on the cyclohexenyl or cycloheptenyl ligand.During the course of this study it was found that treatment of the exo-cyano-substituted ?-allylmolybdenum complexes with butyllithium led to novel decyanation reaction.This allowed the generation of nonstabilized carbanion species that could be alkylated regio- and stereospecifically.

IMIDAZOLE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME

The present invention provides a novel imidazole derivative having the chemical formula STR1 These compounds are useful for preventing or treating hypertension or congestive heart failure and have high activity, rapid action upon intravenous injection, go

WAVELENGTH EFFECT ON THE PHOTOCHEMICAL REACTIONS OF (Z)-2,5-DIMETHYL-1,3,5-HEXATRIENE: SELECTIVE EXCITATION OF ROTAMERS

The UV absorption spectrum of Z-2,5-dimethyl-1,3,5-hexatriene 1 is typical of a cZt triene, but the long wavelength tail indicates the presence of the (minor) cZc rotamer.The sudden change in the photoreactivity of 1 around 290 nm is in agreement with selective excitation of these rotamers.No indication is obtained for an intrinsic excitation energy dependence of the photoreactivity of the individual rotamers.