FR2484435A1 - Matiere nematique a basse valeur d'anisotropie optique et procede de preparation de ladite matiere - Google Patents
Matiere nematique a basse valeur d'anisotropie optique et procede de preparation de ladite matiere Download PDFInfo
- Publication number
- FR2484435A1 FR2484435A1 FR8013448A FR8013448A FR2484435A1 FR 2484435 A1 FR2484435 A1 FR 2484435A1 FR 8013448 A FR8013448 A FR 8013448A FR 8013448 A FR8013448 A FR 8013448A FR 2484435 A1 FR2484435 A1 FR 2484435A1
- Authority
- FR
- France
- Prior art keywords
- substance
- acid
- general formula
- nematic
- denotes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000126 substance Substances 0.000 title claims abstract description 29
- 230000003287 optical effect Effects 0.000 title claims abstract description 18
- 239000013078 crystal Substances 0.000 title 1
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 45
- 239000002253 acid Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 16
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 150000001408 amides Chemical class 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 6
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- RSAUOQFEFINEDM-UHFFFAOYSA-N 4-(4-cyanophenoxy)benzonitrile Chemical class C1=CC(C#N)=CC=C1OC1=CC=C(C#N)C=C1 RSAUOQFEFINEDM-UHFFFAOYSA-N 0.000 claims description 4
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 3
- 125000006701 (C1-C7) alkyl group Chemical group 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 2
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 230000002152 alkylating effect Effects 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- 239000000047 product Substances 0.000 description 15
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 8
- -1 3-chloro-4-cyanophenyl ester Chemical class 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- OMOVVBIIQSXZSZ-UHFFFAOYSA-N [6-(4-acetyloxy-5,9a-dimethyl-2,7-dioxo-4,5a,6,9-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl)-5-formyloxy-3-(furan-3-yl)-3a-methyl-7-methylidene-1a,2,3,4,5,6-hexahydroindeno[1,7a-b]oxiren-4-yl] 2-hydroxy-3-methylpentanoate Chemical compound CC12C(OC(=O)C(O)C(C)CC)C(OC=O)C(C3(C)C(CC(=O)OC4(C)COC(=O)CC43)OC(C)=O)C(=C)C32OC3CC1C=1C=COC=1 OMOVVBIIQSXZSZ-UHFFFAOYSA-N 0.000 description 4
- 239000005711 Benzoic acid Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- FEUZBHJCXMOGRM-UHFFFAOYSA-N 6-chloro-6-(4-methylphenoxy)cyclohexa-2,4-diene-1-carboxylic acid Chemical compound ClC1(C(C(=O)O)C=CC=C1)OC1=CC=C(C=C1)C FEUZBHJCXMOGRM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 235000013985 cinnamic acid Nutrition 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- MJQGGKSHAINDAV-UHFFFAOYSA-N (4-carbamoyl-3-chlorophenyl) 4-heptylbenzoate Chemical compound C1=CC(CCCCCCC)=CC=C1C(=O)OC1=CC=C(C(N)=O)C(Cl)=C1 MJQGGKSHAINDAV-UHFFFAOYSA-N 0.000 description 1
- LFBNSGULXRERCQ-UHFFFAOYSA-N (4-cyanophenyl) 4-butoxy-2-chlorobenzoate Chemical compound ClC1=CC(OCCCC)=CC=C1C(=O)OC1=CC=C(C#N)C=C1 LFBNSGULXRERCQ-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- LEJHYZJPKLJOPX-UHFFFAOYSA-N 2-chloro-4-(4-heptoxybenzoyl)oxybenzoic acid Chemical compound C1=CC(OCCCCCCC)=CC=C1C(=O)OC1=CC=C(C(O)=O)C(Cl)=C1 LEJHYZJPKLJOPX-UHFFFAOYSA-N 0.000 description 1
- DFUHYQHMNNRZCT-UHFFFAOYSA-N 2-chloro-4-[3-(4-heptylphenyl)prop-2-enoyloxy]benzoic acid Chemical compound C1=CC(CCCCCCC)=CC=C1C=CC(=O)OC1=CC=C(C(O)=O)C(Cl)=C1 DFUHYQHMNNRZCT-UHFFFAOYSA-N 0.000 description 1
- UJNRBTOKJSMCOV-UHFFFAOYSA-N 4-(2-phenylphenyl)benzonitrile Chemical group C1=CC(C#N)=CC=C1C1=CC=CC=C1C1=CC=CC=C1 UJNRBTOKJSMCOV-UHFFFAOYSA-N 0.000 description 1
- CWYNKKGQJYAHQG-UHFFFAOYSA-N 4-pentylbenzoic acid Chemical compound CCCCCC1=CC=C(C(O)=O)C=C1 CWYNKKGQJYAHQG-UHFFFAOYSA-N 0.000 description 1
- POEBGIQSFIJHAX-HAQNSBGRSA-N CCCCCC[C@H]1CC[C@H](C(O)=O)CC1 Chemical compound CCCCCC[C@H]1CC[C@H](C(O)=O)CC1 POEBGIQSFIJHAX-HAQNSBGRSA-N 0.000 description 1
- BALGERHMIXFENA-MGCOHNPYSA-N CCCC[C@H]1CC[C@H](C(O)=O)CC1 Chemical compound CCCC[C@H]1CC[C@H](C(O)=O)CC1 BALGERHMIXFENA-MGCOHNPYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- KMGBZBJJOKUPIA-UHFFFAOYSA-N butyl iodide Chemical compound CCCCI KMGBZBJJOKUPIA-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- IGARGHRYKHJQSM-UHFFFAOYSA-N cyclohexylbenzene Chemical compound C1CCCCC1C1=CC=CC=C1 IGARGHRYKHJQSM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000001911 terphenyls Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
- C09K19/2014—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups containing additionally a linking group other than -COO- or -OCO-, e.g. -CH2-CH2-, -CH=CH-, -C=C-; containing at least one additional carbon atom in the chain containing -COO- or -OCO- groups, e.g. -(CH2)m-COO-(CH2)n-
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8013448A FR2484435A1 (fr) | 1980-06-17 | 1980-06-17 | Matiere nematique a basse valeur d'anisotropie optique et procede de preparation de ladite matiere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8013448A FR2484435A1 (fr) | 1980-06-17 | 1980-06-17 | Matiere nematique a basse valeur d'anisotropie optique et procede de preparation de ladite matiere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2484435A1 true FR2484435A1 (fr) | 1981-12-18 |
| FR2484435B1 FR2484435B1 (enExample) | 1984-02-17 |
Family
ID=9243198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8013448A Granted FR2484435A1 (fr) | 1980-06-17 | 1980-06-17 | Matiere nematique a basse valeur d'anisotropie optique et procede de preparation de ladite matiere |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2484435A1 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490277A (en) * | 1981-05-29 | 1984-12-25 | Grebenkin Mikhail F | Mesomorphic material with low optical anisotropy and process for producing same |
| US4664840A (en) * | 1979-05-28 | 1987-05-12 | E. Merck | Liquid crystal compounds |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2854310A1 (de) * | 1977-12-16 | 1979-06-21 | Dainippon Ink & Chemicals | Nematisch-fluessige kristalle fuer anzeigevorrichtungen |
| DD137597A1 (de) * | 1978-07-06 | 1979-09-12 | Deutscher Hans Joachim | Nematische kristallin-fluessige substanzen |
| DD137928A1 (de) * | 1978-07-06 | 1979-10-03 | Deutscher Hans Joachim | Verfahren zur herstellung von 4-n-alkylcyclohexancarbonsaeure-eckige klammer auf 4-cyan-biphenylyl-(4)-estern eckige klammer zu |
| GB2028363A (en) * | 1978-07-21 | 1980-03-05 | Suwa Seikosha Kk | Liquid crystal composition |
| EP0008956A1 (en) * | 1978-09-13 | 1980-03-19 | The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and | Improvements in or relating to liquid crystal materials and devices |
-
1980
- 1980-06-17 FR FR8013448A patent/FR2484435A1/fr active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2854310A1 (de) * | 1977-12-16 | 1979-06-21 | Dainippon Ink & Chemicals | Nematisch-fluessige kristalle fuer anzeigevorrichtungen |
| DD137597A1 (de) * | 1978-07-06 | 1979-09-12 | Deutscher Hans Joachim | Nematische kristallin-fluessige substanzen |
| DD137928A1 (de) * | 1978-07-06 | 1979-10-03 | Deutscher Hans Joachim | Verfahren zur herstellung von 4-n-alkylcyclohexancarbonsaeure-eckige klammer auf 4-cyan-biphenylyl-(4)-estern eckige klammer zu |
| GB2028363A (en) * | 1978-07-21 | 1980-03-05 | Suwa Seikosha Kk | Liquid crystal composition |
| EP0008956A1 (en) * | 1978-09-13 | 1980-03-19 | The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and | Improvements in or relating to liquid crystal materials and devices |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/79 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664840A (en) * | 1979-05-28 | 1987-05-12 | E. Merck | Liquid crystal compounds |
| US4490277A (en) * | 1981-05-29 | 1984-12-25 | Grebenkin Mikhail F | Mesomorphic material with low optical anisotropy and process for producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2484435B1 (enExample) | 1984-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4676924A (en) | Liquid crystalline isothiocyanates with dioxane ring and liquid crystalline admixtures containing same | |
| DE1961778A1 (de) | Verfahren zur Herstellung von Brenzcatechin-Derivaten | |
| FR2484435A1 (fr) | Matiere nematique a basse valeur d'anisotropie optique et procede de preparation de ladite matiere | |
| EP0113293B1 (fr) | Famille de cristaux liquides présentant une phase smectique A, et son procédé de fabrication | |
| EP0155792B1 (en) | Benzoate derivatives having positive dielectric anisotropy and liquid crystal compositions containing them | |
| FR2521581A1 (fr) | Cristaux liquides nematiques et procede pour leur preparation | |
| US4835274A (en) | Liquid crystal compound | |
| US4158011A (en) | p'-Cyanophenyl ester of p-(β-alkoxy)ethoxybenzoic acid | |
| US4366330A (en) | Intermediates useful in the production of liquid crystal compounds | |
| FR2461697A1 (fr) | 3-cyano-4-alcoxybenzoate de 2-chloro-4-alcoylphenyle et son utilisation dans une composition de cristaux liquides | |
| EP0083886B1 (fr) | Composé organique du type benzoate de biphényle triplement substitué et son procédé de fabrication | |
| US4424372A (en) | 4-Substituted phenyl 4'-(5-N-alkyl-1,3-dioxan-2-yl) thiobenzoates | |
| EP0106588B1 (en) | 2-cyano-4-halogenophenyl esters | |
| US4238423A (en) | Process for preparing cyclo-1,3,2-oxazaphosphoryl derivatives | |
| US5015418A (en) | Acyl malate diesters | |
| EP0360683A1 (fr) | Cristaux liquides à structure chirale dérivés du dihydroxy 4,4' biphényle | |
| KR900002065B1 (ko) | 브라시노라이드 유사체의 제조방법 | |
| CH476658A (fr) | Procédé pour la préparation d'une dihydroxy-dicétone | |
| Lutz et al. | Dibenzoylethylene Oxide and Chlorohydrin | |
| US2493572A (en) | Dibenzylidene anhydroenneaheptitol | |
| DD247221A1 (de) | Verfahren zur herstellung 2,5-disubstituierter 1,3,4-thiadiazolderivate mit trans-cyclohexanstrukturfragmenten | |
| JPH02178258A (ja) | ２―ハロゲン置換カルボン酸誘導体 | |
| US2559532A (en) | Chloro-2-methylbenzofurans | |
| CH330478A (fr) | Procédé de préparation de nouveaux thiodérivés de colchicéines | |
| Davis | SOME FACTORS BEARING UPON 1, 6-ADDITION. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |