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公开(公告)号：JPH0291065A
公开(公告)日：1990-03-30
申请号：JP20709289
申请日：1989-08-11
Applicant: HOECHST AG
Inventor： UORUFUGANGU HEMUMERURINGU , HANSUURORUFU DEYUBAARU , KURAUSU ETSUSHIERU , GERUHARUTO IRIAN , INOGUCHI YOSHIO , INGURIITO MIYUURAA , MURAKAMI MIKIO , DEIITAA OORENDORUFU , RAINERU UINGEN
IPC: G02F1/13 , C07D307/24 , C07D307/56 , C07D405/12 , C07D405/14 , C07D407/12 , C07D407/14 , C07D409/12 , C07D409/14 , C07D417/12 , C07D417/14 , C09K19/54 , C09K19/58 , G02F1/137 , G02F1/141
Abstract: Optically active tetrahydrofuran-2-carboxylic acid esters containing a mesogenic molecular building block are suitable as dopes in liquid-crystal mixtures. They result in liquid-crystalline ferroelectric phases having short switching times and in electroclinic phases having high electroclinic coefficients. A further advantage is that they induce a helix of very low pitch, so they are also suitable for helix compensation in LC mixtures. The compounds are symbolised by the general formula in which the symbols and indices essentially have the following meanings: R = alkyl/alkenyl or tetrahydrofurancarbonyloxy or -thio; j, l and n = zero, 1 or 2; k and m = zero or 1; -A , -A and -A = phenylene, cycloalkylene or corresponding N-, O- or S-containing heterocycles; -M and -M = bridges, such as -CO-O-, -OCH2- or -CH=CH-; and X = O or S.
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2.发明专利
公开(公告)号：JPH0291080A
公开(公告)日：1990-03-30
申请号：JP20709389
申请日：1989-08-11
Applicant: HOECHST AG
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公开(公告)号：JPH0288573A
公开(公告)日：1990-03-28
申请号：JP18617989
申请日：1989-07-20
Applicant: HOECHST AG
Inventor： GIYUNTERU SHIEROUSUKII , YURUGEN GAI , RAINERU UINGEN , HANSUURORUFU DEYUBAARU , KURAUSU ETSUSHIERU , UORUFUGANGU HEMUMERURINGU , INOGUCHI YOSHIO , INGURIITO MIYURAA , DEIITAA OORENDORUFU
IPC: G02F1/13 , C07D317/22 , C07D317/24 , C07D317/36 , C07D317/72 , C07D405/12 , C07D405/14 , C07D407/12 , C07D409/12 , C07D409/14 , C07D417/12 , C07D417/14 , C09K19/34 , C09K19/54 , C09K19/58 , G02F1/137 , G02F1/33
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公开(公告)号：JPH10168086A
公开(公告)日：1998-06-23
申请号：JP24840997
申请日：1997-09-12
Applicant: HOECHST AG
Inventor： WOLFGANG HEMMERRING , HANS-ROLFE DUVAL , KLAUS ESCHER , GERHARD IRIAN , INOGUCHI YOSHIO , INGREED MULLER , MURAKAMI MIKIO , DIETER OERENDOLF , RAINER WINGEN
Abstract: PROBLEM TO BE SOLVED: To obtain a new subject compound that comprises a specific silylalkyl or silylalkenyl compound, resistant to hydrolysis, forms a liquid crystal mixture together with other components and is useful as an electrooptical switching element and as a display unit with high chemical stability. SOLUTION: This new liquid crystalline silylalkyl or silylalkenyl compound is represented by formula I [R is a group of formula II (R to R are each a 1-16C straight chain alkyl, a 3-8C cyclic alkyl; G is H and/or an 1-16C alkylene in which one CH2 or two CH2 not adjacent to each other may be replaced with O, OCO or COO under the conditions that only C atom having a C atom as an adjacent atom bonds to a Si atom); A to A is each 1,4- phenylene, trans-1,4-cyclohexylene, pyridine-2,5-diyl; M and M are each COO, OCO, CH2 O or the like; G is the same as G ; j, k, l, m, n are 0, 1; j+l+n is 2, 3]. This compound resists to hydrolysis, forms a liquid crystalline mixture with other components and is useful as an electrooptical switching element and as a display unit.
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公开(公告)号：JPH10158271A
公开(公告)日：1998-06-16
申请号：JP24840897
申请日：1997-09-12
Applicant: HOECHST AG
Inventor： WOLFGANG HEMMERRING , HANS-ROLFE DUVAL , KLAUS ESCHER , GERHARD IRIAN , INOGUCHI YOSHIO , INGREED MULLER , MURAKAMI MIKIO , DIETER OERENDOLF , RAINER WINGEN
Abstract: PROBLEM TO BE SOLVED: To produce the subject new compound, respectively having a silicon group-containing group and an oxygen ring group at both terminals and capable of providing excellent (photo)chemical and thermal stabilities, mixing compatibility, further a short switching time and high effective switching angle. SOLUTION: This compound is represented by formula I R is group represented by formula II [R and R are each H, a (branched) 1-16C alkylene, etc.], etc.; A to A are each 1,4-phenylene, etc.; M and M are each CO-O, etc.; G is a (branched) 1-16C alkylene, etc., in which Si is bonded to only C having H and/or C as an adjacent atom; R to R are each a (branched) 1-16C alkylene, etc.; (j) to (n) are each 0 or 1 and [(j)+(l)+(n)] is 2 or 3}, e.g. 4-[5(4 butyldimethylsilylbutyloxy)pyrimidin-2-yl]phenyl(2R,3R) 3propyloxirane-2- carboxylate. The compound represented by formula I is obtained by reacting a compound represented by the formula R (-A )j (-M )k (-A )l (-M )m (-A )n -X (X is OH, etc.) with a compound represented by formula III (Y is H, OH, etc.).
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Patent Agency Ranking
公开(公告)号：JPH0892260A
公开(公告)日：1996-04-09
申请号：JP17649595
申请日：1995-07-12
Applicant: HOECHST AG
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公开(公告)号：JPH0881476A
公开(公告)日：1996-03-26
申请号：JP17649695
申请日：1995-07-12
Applicant: HOECHST AG
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公开(公告)号：NO893241A
公开(公告)日：1990-02-14
申请号：NO893241
申请日：1989-08-11
Applicant: HOECHST AG
Inventor： HEMMERLING WOLFGANG , DUEBAL HANS-ROLF , ESCHER CLAUS , ILLIAN GERHARD , INOGUCHI YOSHIO , MUELLER INGRID , MURAKAMI MIKIO , OHLENDORF DIETER , WINGEN RAINER
IPC: G02F1/13 , C07D307/56 , C07D405/12 , C07D407/12 , C07D417/12 , C09K19/54 , C09K19/58 , G02F1/137 , G02F1/141 , C09K19/30
CPC classification number: C07D405/12 , C09K19/58 , C09K19/588
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公开(公告)号：NO893241D0
公开(公告)日：1989-08-11
申请号：NO893241
申请日：1989-08-11
Applicant: HOECHST AG
Inventor： HEMMERLING WOLFGANG , DUEBAL HANS-ROLF , ESCHER CLAUS , ILLIAN GERHARD , INOGUCHI YOSHIO , MUELLER INGRID , MURAKAMI MIKIO , OHLENDORF DIETER , WINGEN RAINER
IPC: G02F1/13 , C07D307/24 , C07D307/56 , C07D405/12 , C07D405/14 , C07D407/12 , C07D407/14 , C07D409/12 , C07D409/14 , C07D417/12 , C07D417/14 , C09K19/54 , C09K19/58 , G02F1/137 , G02F1/141 , C09K19/00
Abstract: Optically active tetrahydrofuran-2-carboxylic acid esters containing a mesogenic molecular building block are suitable as dopes in liquid-crystal mixtures. They result in liquid-crystalline ferroelectric phases having short switching times and in electroclinic phases having high electroclinic coefficients. A further advantage is that they induce a helix of very low pitch, so they are also suitable for helix compensation in LC mixtures. The compounds are symbolised by the general formula in which the symbols and indices essentially have the following meanings: R = alkyl/alkenyl or tetrahydrofurancarbonyloxy or -thio; j, l and n = zero, 1 or 2; k and m = zero or 1; -A , -A and -A = phenylene, cycloalkylene or corresponding N-, O- or S-containing heterocycles; -M and -M = bridges, such as -CO-O-, -OCH2- or -CH=CH-; and X = O or S.
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公开(公告)号：NO893242L
公开(公告)日：1990-02-14
申请号：NO893242
申请日：1989-08-11
Applicant: HOECHST AG
Inventor： HEMMERLING WOLFGANG , DUEBAL HANS-ROLF , ESCHER CLAUS , ILLIAN GERHARD , INOGUCHI YOSHIO , MUELLER INGRID , MURAKAMI MIKIO , OHLENDORF DIETER , WINGEN RAINER
Abstract: The novel silylalkyl or -alkenyl compounds conform to the general formula (I) in which A , A and A are aromatic or heteroaromatic molecular units such as 1,4-phenylene or pyrimidine-2,5-diyl which are linked via a single bond (where k and m are zero) or via functional groups M and M , such as CO-O or CH2-O; j, k, l, m and n are zero or 1 (j + l + n = 2 or 3), the radicals R , R , R and R are H or alkyl/alkenyl or cycloalkyl, the radicals R , R and R have a comparable meaning (H); R is alkyl/alkenyl or a substituent known from LC chemistry, such as an alpha -haloalkanoic acid radical. The compounds have liquid-crystalline phases, which are in some cases broad and polymorphous.
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