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Upstream product

• 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 
• 220436-98-6 8-(4-ethoxy-2,3-difluorophenyl)-1,4-dioxaspiro[4.5]dec-7-ene 
• 220437-00-3 8-(2,3-difluoro-4-ethoxyphenyl)-1,4-dioxaspiro[4.5]decane 
• 220437-02-5 4-(2,3-difluoro-4-ethoxyphenyl)-cyclohexanone 
• 144292-32-0 2,3-difluoro-4-bromophenol 

Relevant academic research and scientific papers

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.