Difluoro octa-alkoxy tribenzotetrabenzene discotic liquid crystal compound and preparation method thereof
The invention discloses a 9, 18-difluoro-2, 3, 6, 7, 11, 12, 15, 16-octa (alkoxy) tribenzo [f, k, m] tetrabenzene discotic liquid crystal compound and a novel preparation method thereof. The difluoro octaalkoxy tribenzotetrabenzene conjugated polycyclic aromatic hydrocarbon discotic liquid crystal c...
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| creator | ZHAO KEXIAO ZHOU MINGMEI WANG BIQIN ZHAO KEQING HU PING |
| description | The invention discloses a 9, 18-difluoro-2, 3, 6, 7, 11, 12, 15, 16-octa (alkoxy) tribenzo [f, k, m] tetrabenzene discotic liquid crystal compound and a novel preparation method thereof. The difluoro octaalkoxy tribenzotetrabenzene conjugated polycyclic aromatic hydrocarbon discotic liquid crystal compound is synthesized in a one-pot manner by reacting dibromo tetraalkoxy biphenyl with butyl lithium and then reacting with tetrafluorobenzophenanthrene (1, 2, 3, 4-tetrafluoro-6, 7, 10, 11-tetra (alkoxy) benzophenanthrene). The synthesis method is mild in condition, simple to operate, short in synthesis route, low in synthesis cost, environment-friendly and relatively high in practical value. Meanwhile, the invention discloses physical properties of a series of difluoro octa-alkoxy tribenzotetrabenzene discotic liquid crystal compounds, and the compounds have liquid crystal performance, are in a columnar liquid crystal phase, are relatively wide in liquid crystal phase temperature range and moderate in clearing |
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The difluoro octaalkoxy tribenzotetrabenzene conjugated polycyclic aromatic hydrocarbon discotic liquid crystal compound is synthesized in a one-pot manner by reacting dibromo tetraalkoxy biphenyl with butyl lithium and then reacting with tetrafluorobenzophenanthrene (1, 2, 3, 4-tetrafluoro-6, 7, 10, 11-tetra (alkoxy) benzophenanthrene). The synthesis method is mild in condition, simple to operate, short in synthesis route, low in synthesis cost, environment-friendly and relatively high in practical value. 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The difluoro octaalkoxy tribenzotetrabenzene conjugated polycyclic aromatic hydrocarbon discotic liquid crystal compound is synthesized in a one-pot manner by reacting dibromo tetraalkoxy biphenyl with butyl lithium and then reacting with tetrafluorobenzophenanthrene (1, 2, 3, 4-tetrafluoro-6, 7, 10, 11-tetra (alkoxy) benzophenanthrene). The synthesis method is mild in condition, simple to operate, short in synthesis route, low in synthesis cost, environment-friendly and relatively high in practical value. Meanwhile, the invention discloses physical properties of a series of difluoro octa-alkoxy tribenzotetrabenzene discotic liquid crystal compounds, and the compounds have liquid crystal performance, are in a columnar liquid crystal phase, are relatively wide in liquid crystal phase temperature range and moderate in clearing</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES |
| title | Difluoro octa-alkoxy tribenzotetrabenzene discotic liquid crystal compound and preparation method thereof |
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