95149-47-6

Upstream product

• 143-33-9 sodium cyanide 
• 71458-12-3 trans-4-n-propyl-1-bromomethylcyclohexane 
• 71458-06-5 trans-4-propyl-1-(hydroxymethyl)cyclohexane 
• 67589-88-2 trans-4-propylcyclohexanecarbonyl chloride 
• 38289-27-9 trans-4-propyl-cyclohexanecarboxylic acid 
• 151-50-8 potassium cyanide 

Downstream Products

• 86849-44-7 4-(2-trans-4-propylcyclohexyl-ethyl)-benzonitrile 
• 87002-34-4 1-Phenyl-2-(4-propyl-cyclohexyl)-ethanone 
• 89013-05-8 4-[2-(4-Propyl-cyclohexyl)-ethyl]-benzamide 
• 89013-09-2 4-[2-(4-Propyl-cyclohexyl)-ethyl]-benzoyl chloride 
• 84361-31-9 [2-(4-Propyl-cyclohexyl)-ethyl]-benzene 
• 73899-61-3 trans-4-propylcyclohexyl acetyl chloride 
• 71458-18-9 trans-4-propylcyclohexylacetic acid 

Relevant academic research and scientific papers

Technology for synthesizing 1-(4-fluorophenyl)-2-(trans-4-alkylcyclohexyl)-ethanone

The invention discloses a technology for synthesizing 1-(4-fluorophenyl)-2-(trans-4-alkylcyclohexyl)-ethanone. Trans-4-alkyl-1-(methylol) cyclohexane serves as a raw material and reacts with substituted sulfonyl chloride to generate an intermediate such as trans-4-alkyl cyclohexane-1-methylene tosylate, potassium cyanide substituted benzenesulfulonate is directly added without separation to generate trans-4-alkyl-1-(cyanomethyl) cyclohexane, finally, the trans-4-alkyl-1-(cyanomethyl) cyclohexane reacts with a p-fluorophenyl Grignard reagent, and then 1-(4-fluorophenyl)-2-(trans-4-alkylcyclohexyl)-ethanone is prepared through hydrolysis. The technology has the remarkable technical and economic advantages that a process route is short, side reactions are few, the yield is high, separation and purification are easy, and operation cost is low.

Fluorinated oxabicycl oxononanoic structure and its liquid crystal composition having compd.

PROBLEM TO BE SOLVED: To provide a liquid crystal composition and a display element having negative dielectric anisotropy (Δε) of a large absolute value and being excellent in chemical stability, and to provide a compound having negative Δε of a large

68. Liquid Crystals with Large Negative Dielectric Anisotropy. Part V

Liquid crystals with negative Δε can be obtained by incorporating a cyano group in the terminal alkyl substituent or in an ethylene bridge between the cyclic units of the rigid core.The clearing points of such compounds are higher than those of the corresponding derivatives where the cyano group is laterally attached to a phenyl moiety.In compounds where both cyclic units of the rigid core are cyclohexyl, this type of substitution leads to an optimal contribution to ε in contrast to the cyanophenyl derivatives.

1-(TRANS-4 prime -N-ALKYLCYCLOHEXYL)-2-(4 double prime -CYANOPHENYL)ETHANES - A NEW SERIES OF STABLE NEMATOGENS OF POSITIVE DIELECTRIC ANISOTROPY.

The synthesis and some important properties of the 1-(trans-4 prime -n-alkylcyclohexyl)-2-(4 double prime -cyanophenyl)ethanes - where n-alkyl equals C//1 to C//7 - are described.