2,3,6,7,10,11-HEXAKISSILYLOXYTRIPHENYLENE COMPOUND AND PRODUCTION OF HIGH-PURITY 2,3,6,7,10,11-HEXAKISSILYLOXYTRIPHENYLENE

PROBLEM TO BE SOLVED: To obtain the subject novel compound that is a specific 2,3,6,7,10,11- hexakissilyloxytriphenylene compound and is useful as a synthetic intermediate for triphenylene derivatives as a liquid crystal material because this compound has excellent solubility and permits easy desily...

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Bibliographic Details
Main Author SATO TADAHISA
Format Patent
LanguageEnglish
Published 21.09.1999
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Summary:PROBLEM TO BE SOLVED: To obtain the subject novel compound that is a specific 2,3,6,7,10,11- hexakissilyloxytriphenylene compound and is useful as a synthetic intermediate for triphenylene derivatives as a liquid crystal material because this compound has excellent solubility and permits easy desilylation. SOLUTION: This compound is a novel 2,3,6,7,10,11-hexakissilyloxytriphenylene represented by formula I (R1 -R6 are each a silyl group), shows good solubility in an organic solvent and can be readily purified by recrystallization and is useful as a starting substance for producing high-purity 2,3,6,7,10,11- hexahydroxytriphenylene that is a synthetic intermediate for triphenylene derivatives to be used as liquid crystal materials. The compound is prepared by dissolving 2,3,6,7,10,11-hexahydroxy-triphenylene in tetrahydrofuran and adding N,N-dimethyltrimethylsilylamine or the like to the solution to effect the reaction between them.
Bibliography:Application Number: JP19980063622