4'-SUBSTITUTED CHALCONE DERIVATIVE AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain the subject new compound transparent in the visible light range, stable, having such photosensitivity as to be photopolymerized in the far-ultraviolet/ultraviolet light range, and also, because of bearing chlorosilicon group, usable as a chemically absorbing substance...

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Bibliographic Details
Main Authors OGAWA KAZUFUMI, OTAKE TADASHI
Format Patent
LanguageEnglish
Published 23.02.1999
Edition6
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:PROBLEM TO BE SOLVED: To obtain the subject new compound transparent in the visible light range, stable, having such photosensitivity as to be photopolymerized in the far-ultraviolet/ultraviolet light range, and also, because of bearing chlorosilicon group, usable as a chemically absorbing substance suitable for producing monomolecular films for liquid crystal orientation membranes. SOLUTION: This new compound is shown by formula I (R is a 1-3C alkyl or 1-3C alkoxy; (p) is 0-2; A is a bivalent functional group), e.g. 4'-(6- trichlorosiloxyhexyloxy)-chalocone. The compound of formula I is obtained by the following process: 4'-hydroxychalcone of formula II and a compound of the formula Hal-(CH2 )n -OH (Hal is I, Br or Cl; (n) is 3-14) (e.g. 6-chloro-1- hexanol) are subjected to coupling reaction to form a compound of formula III, which, in turn, is subjected, together with silicon tetrachloride, to dehydrochlorination in an inert gas atmosphere.
Bibliography:Application Number: JP19970205938