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    • 4. 发明授权
    • 2,3-difluorohydroquinone derivatives
    • 2,3-二氟氢醌衍生物
    • US5248447A
    • 1993-09-28
    • US871620
    • 1992-04-21
    • Volker ReiffenrathJoachim KrauseAndreas WachtlerGeorg WeberThomas GeelhaarDavid CoatesIan C. SageSimon Greenfield
    • Volker ReiffenrathJoachim KrauseAndreas WachtlerGeorg WeberThomas GeelhaarDavid CoatesIan C. SageSimon Greenfield
    • C07C43/225C07D239/26C09K19/20C09K19/30C09K19/34
    • C07D239/26C07C43/225C09K19/2007C09K19/2021C09K19/3066C09K19/3068C09K19/3441C09K19/3458C07C2101/14C09K2019/0407
    • 2,3-difluorohydroquinone compounds of the formula I ##STR1## in which R.sup.1 and R.sup.2, in each case independently of one another, are alkyl having 1 to 15 C atoms or alkenyl having 3 to 15 C atoms which are unsubstituted, monosubstituted by cyano or at least monosubstituted by fluorine or chlorine, it also being possible for one CH.sub.2 group in these radicals to be replaced by --O--, --CO--, --CO--O--, --O--CO-- or --O--CO--O--,A.sup.1, A.sup.2 and A.sup.3, in each case independently of one another, are(a) trans-1,4-cyclohexylene, in which, in addition, one or two non-adjacent CH.sub.2 groups may be replaced by --O-- and/or --S--,(b) 1,4-phenylene, in which, in addition, one or two CH groups may be replaced by N, or(c) a radical from the group comprising piperidine-1,4-diyl, 1,4-bicylo (2,2,2)-octylene (sic), 1,3,4-thiadiazole-2,5-diyl, napththalene-2,6-diyl, decahydronaphthalene-2,6-diyl and 1,2,3,4-tetrahydronaphthalene-2,6-diyl, it being possible for the radicals (a) and (b) to be monosubstituted or polysubstituted by F, Cl, CH.sub.3 or CN,Z.sup.1 is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O--, --C.tbd.C-- or a single bond,Q.sup.1 and Q.sup.2, in each case independently of one another, are --CO-- or --CH.sub.2 --,m and n are each 0, 1 or 2, and(m+n) is 0, 1 or 2,are suitable as components of liquid-crystalline phases.
    • PCT No.PCT / EP89 / 00179 371日期:1989年5月15日 102(e)日期1989年5月15日PCT提交1989年2月27日PCT公布。 出版物WO89 / 08637 日本1989年9月21日。式I的1,3-二氟氢醌化合物其中R 1和R 2各自独立地为具有1至15个碳原子的烷基或具有3至15个C原子的烯基, 是未取代的,被氰基单取代或至少被氟或氯单取代,这些基团中的一个CH 2基团也可被-O - , - CO - , - CO-O-,-O-CO-或 -O-CO-O-,A1,A2和A3各自独立地是(a)反式-1,4-亚环己基,此外,一个或两个不相邻的CH 2基可以是 被-O-和/或-S-取代,(b)1,4-亚苯基,其中另外一个或两个CH基团可被N取代,或(c)包含哌啶 - 1,4-二酰基,1,4-双酰(2,2,2) - 辛烯(sic),1,3,4-噻二唑-2,5-二基,萘-2,2二基,十氢萘-2, 6-二基和1,2,3,4-四氢化萘-2,6-二基,基团(a)和(b)可以是单取代的或聚合的 被F,Cl,CH 3或CN取代,Z 1是-CO-O - , - O - CO - , - CH 2 CH 2 - , - OCH 2 - , - CH 2 O-,-C 在每种情况下彼此独立地是-CO-或-CH2-,m和n各自为0,1或2,并且(m + n)为0,1或2,适合作为液晶相的组分 。
    • 7. 发明授权
    • Nitrogen-containing heterocyclic compounds
    • 含氮杂环化合物
    • US4752414A
    • 1988-06-21
    • US884349
    • 1986-07-11
    • Rudolf EidenschinkJoachim KrauseReinhard HittichEike PoetschBernhard ScheubleGeorg WeberLudwig Pohl
    • Rudolf EidenschinkJoachim KrauseReinhard HittichEike PoetschBernhard ScheubleGeorg WeberLudwig Pohl
    • C07D239/26C07D239/28C07D239/30C07D239/34C07D239/54C09K19/34C09K19/46G02F1/13C07D239/55C07D239/36C09K19/42
    • C07D239/26C07D239/34C09K19/3441
    • Nitrogen-containing heterocyclic compounds of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --[Z.sup.2 --A.sup.3 ].sub.n --R.sup.2whereinR.sup.1 and R.sup.2 in each case independently of one another are an alkyl group with 1-15 C atoms, it also being possible for one or two non-adjacent CH.sub.2 groups to be replaced by O atoms and/or --CO-- groups and/or --O--CO-- groups and/or --CO--O-- groups, and one of the radicals R.sup.1 and R.sup.2 is also H, F, Cl, Br or CN,A.sup.1 is a 1,4-cyclohexylene group, it also being possible for one or two non-adjacent CH.sub.2 groups to be replaced by O atoms, a 1,4-bicyclo-(2,2,2)-octylene group or a 1,3-dithiane-2,5-diyl group,Z.sup.1 and Z.sup.2 in each case independently of one another are --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O-- or a single bond,A.sup.2 and A.sup.3 in each case independently of one another are a 1,4-phenylene group, pyrimidine-2,5-diyl group, 1,4-cyclohexylene group, it also being possible for one or two non-adjacent CH.sub.2 groups to be replaced by O atoms, 1,3-dithiane-2,5-diyl group or a 1,4-bicyclo(2,2,2)-octylene group andn is 0 or 1,with the provisos that(a) at least one of the groups A.sup.2 and A.sup.3 is a pyrimidine-2,5-diyl group,(b) at least one of the groups Z.sup.1 and Z.sup.2 is not a single bond if A.sup.2 is pyrimidine-2,5-diyl and R.sup.2 is alkyl or CN,(c) Z.sup.1 is not --CO--O-- if A.sup.3 is pyrimidine-2,5-diyl and A.sup.1 is 1,4-cyclohexylene,(d) n is not 0 if A.sup.1 is 1,4-cyclohexylene and Z.sup.1 is --CH.sub.2 CH.sub.2 --, and(e) Z.sup.1 is not --CH.sub.2 CH.sub.2 -- if R.sup.2 is CN, and(f) Z.sup.1 is --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--, if A.sup.1 is 1,4-cyclohexylene and --A.sup.2 --[Z.sup.2 --A.sup.3 ].sub.n -- is ##STR1## and acid addition salts thereof, can be used as components of liquid crystal phases.
    • 式Ⅰ的含氮杂环化合物R1-A1-Z1-A2- [Z2-A3] n-R2其中R1和R2各自独立地为具有1-15个C原子的烷基,它也是 一个或两个不相邻的CH2基团可以被O原子和/或-CO-基团和/或-O-CO-基团和/或-CO-O-基团取代,并且基团R1和R2之一 也是H,F,Cl,Br或CN,A1是1,4-亚环己基,也可以将一个或两个不相邻的CH 2基团替换为O原子,1,4-二环 - ( 2,2,2) - 亚辛基或1,3-二噻烷-2,5-二基,Z1和Z2各自独立地为-CO-O-,-O-CO-,-CH2CH2- ,-OCH 2 - , - CH 2 O-或单键,A2和A3各自独立地为1,4-亚苯基,嘧啶-2,5-二基,1,4-亚环己基, 一个或两个不相邻的CH 2基团被O原子替代,1,3-二噻烷-2,5-二基或1,4-二环(2,2,2) - 亚辛基是可能的,n是 0 或1,条件是(a)基团A2和A3中的至少一个是嘧啶-2,5-二基,(b)如果A 2是,则Z1和Z 2中的至少一个不是单键 嘧啶-2,5-二基和R2是烷基或CN,(c)如果A3是嘧啶-2,5-二基,并且A1是1,4-亚环己基,则Z1不是-CO-O-,(d)n不是 如果A 1为1,4-亚环己基且Z 1为-CH 2 CH 2,则为0,(e)如果R 2为CN,则(Z1)不为-CH2CH2-,(f)Z1为-CH2CH2-,-OCH2-或-CH2O- A1是1,4-亚环己基,-A2- [Z2-A3] n-是它们的酸加成盐,可以用作液晶相的成分。