82380-26-5

Upstream product

• 65355-30-8 4-(Trans-4'-pentylcyclohexyl)-benzoic acid 
• 61204-01-1 4-(trans-4-pentylcyclohexyl)benzonitrile 
• 82380-25-4 4-(trans-4-pentylcyclohexyl)benzyl alcohol 

Downstream Products

• 100988-34-9 2-[4-(4-Pentyl-cyclohexyl)-phenyl]-ethanol 
• 99434-04-5 1-(2-Bromo-ethyl)-4-(4-pentyl-cyclohexyl)-benzene 
• 89761-09-1 p-(trans-4-pentylcyclohexyl)-phenylacetic acid 

Relevant academic research and scientific papers

Aliphatic Liquid Crystals with Positive Dielectric Anisotropy

Cyanoethyl-substituted cyclohexyl cyclohexanoates, bi(cyclohexanes) and phenyl cyclohexanes were synthesized.Their mesomorphic behaviour is compared to that of the corresponding cyano derivatives. (Cyanoethyl)cyclohexyl cyclohexanoates show mesomorphic properties in contrast to the corresponding cyano derivatives.Separation of the cyano substituent from the rigid core of an anisotropic aliphatic compound by methylene groups enhances the thermodynamic stability of its mesophase.In aromatic compounds, the cyanoethyl group leads to lower clearing points.These phenomena are attributed to the influence of steric effects on the packing density and to the dependence of the clearing point on molecular association.

The Synthesis and Liquid Crystal Behavior of p-Benzotrifluoride Compounds II

Four compounds with the general structure R-X-Y-CH2-CH2-Ph-CF3 were synthesized, where X is a 1,4-disubstituted trans-cyclohexyl ring, Y is a phenyl ring, and R is a n-alkyl group.The synthetic procedure is discussed and the structural assignments were confirmed by NMR spectroscopy.The liquid crystal behavior of these compounds was evaluated by DSC and polarizing microscopy.They might be used in fast switching liquid crystal mixtures.

The Synthesis and Liquid-Crystal Transition Temperatures of Some Fluoro-Substituted Benzonitriles

Various laterally fluoro-substituted benzonitriles have been prepared containing a trans-4-(n-alkyl)cyclohexane ring linked to the 4-position of the benzonitriles either through a methyleneoxy (-CH2O-) or an ethylene (-CH2CH2-) bridge.The bridging group links the benzonitrile and cyclohexane rings either directly or through an additional 1,4-bonded cyclohexane or benzene ring.The synthesis and liquid-crystal transition temperatures of these new compounds are described.In several cases the nematic-isotropic transition temperatures of F-substituted benzonitriles are found to be higher than those of the non-laterally substituted analogues.