220437-00-3

Upstream product

• 4746-97-8 cyclohexanedione monoethylene ketal 
• 156573-09-0 1-bromo-4-ethoxy-2,3-difluorobenzene 
• 220436-96-4 8-(4-ethoxy-2,3-difluorophenyl)-1,4-dioxaspiro[4.5]decane-8-ol 
• 144292-32-0 2,3-difluoro-4-bromophenol 
• 598-30-1 sec.-butyllithium 
• 220436-98-6 8-(4-ethoxy-2,3-difluorophenyl)-1,4-dioxaspiro[4.5]dec-7-ene 

Downstream Products

• 220437-02-5 4-(2,3-difluoro-4-ethoxyphenyl)-cyclohexanone 
• 245530-35-2 1-ethoxy-2,3-difluoro-4-(4-(methoxymethylene)cyclohexyl)benzene 
• 1314964-79-8 C₁₄H₁₈F₂O₂ 

Relevant academic research and scientific papers

LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT

PROBLEM TO BE SOLVED: To improve Δn of a liquid crystal compound. SOLUTION: One aspect of the present invention is a liquid crystal compound represented by general formula (i) [where Ri1 is a C1 to 15 alkyl group or the like, Ri2 is

Liquid crystal compound, a liquid crystal display element and a liquid crystal composition

A liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Also, a liquid crystal composition having characteristics similar to these of the compound. Additionally, a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.

LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition having characteristics similar to these of the compound. The invention provides a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.

LIQUID CRYSTALLINE COMPOUND WITH NEGATIVE DIELECTRIC ANISOTROPY, LIQUID CRYSTAL COMPOSITION USING SAME, AND LIQUID CRYSTAL DISPLAY ELEMENT

The invention provides a liquid crystal compound having general physical properties necessary for the liquid crystal compound, namely, stability to heat, light and so forth, a small viscosity, a refractive index anisotropy having a suitable magnitude value, a dielectric anisotropy having a suitable magnitude value, steep electrooptical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; a compound represented by formula (i): wherein, for example, R1 and R2 are alkyl having 1 to 8 carbons or alkenyl having 2 to 8 carbons; ring A1 is trans-1,4-cyclohexylene or 1,4-phenylene; ring A2 is trans-1,4-cyclohexylene or 2,3-difluoro-1,4-phenylene; Q1 and Q2 are fluorine or chlorine; and h is 0, 1 or 2.

TRICYCLIC LIQUID CRYSTALLINE COMPOUND HAVING LATERAL FLUORINE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33 (K33: bend elastic constant), and further having a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds, and provides a liquid crystal composition having a small viscosity, a large optical anisotropy, a suitable elastic constant K33, a suitable and negative dielectric anisotropy, and further having a low threshold voltage, a high maximum temperature of a nematic phase and a low minimum temperature of the nematic phase. In a specific structure having phenylene in which hydrogen on the benzene ring is replaced by fluorine, a three-ring liquid crystal compound having fluorine at a lateral position, and a liquid crystal composition containing the compound are prepared.