78531-59-6

Basic information

• Product Name: 4'-(TRANS-4-N-PENTYLCYCLOHEXYL)ACETOPHENONE
• Synonyms: 4'-(TRANS-4-N-PENTYLCYCLOHEXYL)ACETOPHENONE;4-(trans-4-Pentylcyclohexyl)acetophenon;1-(4-(trans-4-pentylcyclohexyl)phenyl)ethanone
• CAS NO: 78531-59-6
• Molecular Formula: C₁₉H₂₈O
• Molecular Weight: 272.43
• Mol File: 78531-59-6.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 392.229°C at 760 mmHg
• Flash Point: 167.15°C
• Appearance: /
• Density: 0.942g/cm³
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.502
• CAS DataBase Reference: 4'-(TRANS-4-N-PENTYLCYCLOHEXYL)ACETOPHENONE(CAS DataBase Reference)
• NIST Chemistry Reference: 4'-(TRANS-4-N-PENTYLCYCLOHEXYL)ACETOPHENONE(78531-59-6)
• EPA Substance Registry System: 4'-(TRANS-4-N-PENTYLCYCLOHEXYL)ACETOPHENONE(78531-59-6)

Safety Data

• Hazardous Substances Data: 78531-59-6(Hazardous Substances Data)

Usage

General Description

4'-(Trans-4-N-Pentylcyclohexyl)Acetophenone, often shortened to TPCHAP, is a chemical compound mainly known for its uses in liquid crystal technology. With the IUPAC name 1-(4'-pentylcyclohexyl)-4-acetylbenzene, TPCHAP belongs to the classes of Chiral and Acetophenone compounds. Its molecular formula is C17H26O and it has a molecular weight of 250.39 g/mol. As a specialized product, it is mainly distributed by chemical suppliers to industries and research institutions. It's available in varying purities depending on specific requirements, and it's typically preserved under uniform, cool conditions to ensure its effectiveness. Substantial precaution and careful handling are required to protect against any potential hazards when using.

InChI:InChI=1/C19H28O/c1-3-4-5-6-16-7-9-18(10-8-16)19-13-11-17(12-14-19)15(2)20/h11-14,16,18H,3-10H2,1-2H3/t16-,18-

Upstream product

• 61203-96-1 trans-4-pentyl-1-phenylcyclohexane 
• 75-36-5 acetyl chloride 
• 113035-74-8 trans-1-(4-Phenylcyclohexyl)-1-hexanon 
• 61203-83-6 4-n-pentylcyclohexanone 
• 95149-38-5 trans-1-(4-pentanoylphenyl)-4-pentylcyclohexane 
• 61204-01-1 4-(trans-4-pentylcyclohexyl)benzonitrile 
• 75-16-1 methylmagnesium bromide 
• 74-83-9 methyl bromide 
• 344308-23-2 1-(4-Chloro-cyclohexyl)-hexan-1-one 
• 88069-97-0 (4-n-pentylcyclohexen-1-yl)-benzene 
• 78531-55-2 (4-Pentylidene-cyclohexyl)-benzene 
• 82241-68-7 cis-4-pentanoyl-1-phenylcyclohexane 
• 73011-78-6 trans-1-(4-fenilcicloesil)-1-pentanone 
• 88070-00-2 1-(4-Phenyl-cyclohexyl)-pentan-1-ol 

Downstream Products

• 61204-01-1 4-(trans-4-pentylcyclohexyl)benzonitrile 
• 73011-79-7 4-(trans-4'-n-Pentylcyclohexyl)benzoic acid chloride 
• 73011-80-0 4-(4-Pentyl-cyclohexyl)-benzamide 
• 72928-55-3 4-(4-Pentyl-cyclohexyl)-benzoic acid 4-cyano-phenyl ester 
• 65355-30-8 4-(Trans-4'-pentylcyclohexyl)-benzoic acid 

Relevant articles and documents

Norrish II reactions of neat liquid-crystalline ketones. Comparison between nematic and solid phase order and control of photoproduct distributions

The Norrish II photoreactions of trans-1-(4-pentanoylphenyl)-4-pentylcyclohexane (1a) and trans-1-heptyl-4-(4-pentanoylphenyl)cyclohexane (1b) have been examined in their solid, nematic, and isotropic phases. The influence of phase on the product distributions is found to be negligible in the nematic but significant in the solid phases. Phase order, probed by deuterium NMR spectroscopy of the compounds deuteriated at the methylene a to the carbonyl group and by differential scanning calorimetry, has been correlated with the photochemical results. The lack of influence of the nematic phase on the Norrish II reactions of neat 1 is consistent with previously reported results obtained from irradiations of ketones doped in inert nematic matrices. The influence of solid phase order on the photoproduct selectivity of 1 is greater than that observed in some studies on analogous guest ketones in other solid phase hosts, but smaller than in others, A discussion of some of the factors leading to phase control over molecular motions along a reaction coordinate is presented.

KETONES-NEMATOGENS WITH MODERATE NEGATIVE DIELECTRIC ANISOTROPY AND HIGH CLEARING POINTS.

Anisotropic ketones whose rigid cores contain phenyl and cyclohexyl units were synthesized. The carbonyl group was incorporated either in the terminal substituents or in the link between the core units. The mesomorphic behavior of these ketones is described and correlated with their chemical structure. The 1-(4-alkanoylphenyl)-4-trans-alkylcyclohexanes as well as the 1-(4-alkanoylphenyl)-4-trans-alkanoylcyclohexanes show nematic phases. In contrast to laterally substituted compounds, these ketones have clearing points which are higher than those of the corresponding hydrocarbons. Another advantage of these nematogens is the ease of synthesis.

CONVENIENT SYNTHESIS OF 4-(TRANS-4 prime -N-ALKYLCYCLOHEXYL) BENZOIC ACIDS.

A convenient method of obtaining 4-(trans-4 prime -n-alkylcyclohexyl) benzoic acids from alkanoyl chlorides, cyclohexane and benzene is described. Homologous series of above mentioned acids and their nitriles with alkyl tail 2 to 10 carbon atoms were prepared and temperatures of their phase transitions were determined.