Hydrocumarin derivative

Abstract

NEW MATERIAL:A compound expressed by the formula (R 1 is 1-18C alkyl; X is single bond, O, COO or CH 2 O, etc.; Z is COO or CH 2 O; A 1 and A 2 are H, F, Cl, CH 3 or CH 3 , etc.; R 2 is 1-16C alkyl; R 3 is H, F or CH 3 ; p and q are 0 or 1; * is position of asymmetric carbon). EXAMPLE: (3R,1'R)-3-(1'-methylbutoxy) carbonyl-7-(4"-n-octyloxy)benzoyl oxycumarin. USE: Used as a mixing component for a ferroelectric liquid crystal having excellent responsibility. PREPARATION: For instance, 2,4-dihydroxybenzaldehyde is reacted with (R) malonic acid di-1-methyl butyl and reacted with 4-octyloxybenzoyl chloride, then subjected to catalytic hydrogenation using a platinum oxide catalyst to obtain (3RS,1'R)-3-(1'-methylbutoxy) carbonyl-7-(4''-n-octyloxy)benzoyl oxyhydrocumarin, thus resultant compound is treated with an optical resolution agent to afford the aimed compound expressed by the formula. COPYRIGHT: (C)1991,JPO&Japio

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Cited By (5)

    Publication numberPublication dateAssigneeTitle
    JP-2006193509-AJuly 27, 2006Chisso Corp, Chisso Sekiyu Kagaku Kk, チッソ株式会社, チッソ石油化学株式会社Dihydrocoumarin derivative, and liquid crystal composition and liquid crystal displaying element containing the same
    JP-2006232727-ASeptember 07, 2006Chisso Corp, Chisso Sekiyu Kagaku Kk, チッソ株式会社, チッソ石油化学株式会社Coumarin derivative, liquid crystal composition containing the same, and liquid crystal display element containing the liquid crystal composition
    US-7456205-B2November 25, 2008Shanghai Institute Of Materia Medica, Chinese Academy Of SciencesBenzopyran compounds, process for preparing the same and their use
    US-7951305-B2May 31, 2011Chisso Corporation, Chisso Petrochemical CorporationCompound having hydrocoumarin skeleton, liquid crystal composition, and liquid crystal display device
    US-8366963-B2February 05, 2013Jnc Corporation, Jnc Petrochemical CorporationCompound having hydrocoumarin skeleton, liquid crystal compostition, and liquid crystal display device