HK19997A - Chiral dioxolanes - Google Patents
Chiral dioxolanesInfo
- Publication number
- HK19997A HK19997A HK19997A HK19997A HK19997A HK 19997 A HK19997 A HK 19997A HK 19997 A HK19997 A HK 19997A HK 19997 A HK19997 A HK 19997A HK 19997 A HK19997 A HK 19997A
- Authority
- HK
- Hong Kong
- Prior art keywords
- dioxolanes
- chiral
- chiral dioxolanes
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/12—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
-
- 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
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/58—Dopants or charge transfer agents
- C09K19/586—Optically active dopants; chiral dopants
- C09K19/588—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/32—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Liquid Crystal Substances (AREA)
- Plural Heterocyclic Compounds (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH37190 | 1990-02-06 | ||
CH334490 | 1990-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK19997A true HK19997A (en) | 1997-02-20 |
Family
ID=25684378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK19997A HK19997A (en) | 1990-02-06 | 1997-02-20 | Chiral dioxolanes |
Country Status (6)
Country | Link |
---|---|
US (1) | US5637255A (ja) |
EP (1) | EP0441213B1 (ja) |
JP (1) | JP2960975B2 (ja) |
KR (1) | KR100186864B1 (ja) |
DE (1) | DE59106444D1 (ja) |
HK (1) | HK19997A (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59208513D1 (de) * | 1991-09-26 | 1997-06-26 | Hoffmann La Roche | Chirale Oxazoline als Dotierstoffe für flüssigkristalline Gemische |
CH683522A5 (de) * | 1992-03-13 | 1994-03-31 | Hoffmann La Roche | Verfahren zur Herstellung von Diarylen. |
US5498367A (en) * | 1994-03-30 | 1996-03-12 | Hoffmann-La Roche Inc. | Optically active tolanes |
DE19819444B4 (de) * | 1997-05-07 | 2009-01-02 | Merck Patent Gmbh | Dioxolan-Derivate, flüssigkristallines Medium und darauf basierende Anzeigeelemente |
US6120859A (en) * | 1997-06-02 | 2000-09-19 | Rolic Ag | Polymerisable, optically active dioxolane diesters |
DE69806381T2 (de) * | 1997-06-02 | 2003-03-06 | Rolic Ag, Zug | Polymerisierbare optisch wirksame dioxolandiester |
DE69909925D1 (de) * | 1998-10-02 | 2003-09-04 | Merck Patent Gmbh | Chirale Verbindungen |
EP0992485B1 (en) * | 1998-10-02 | 2003-07-30 | MERCK PATENT GmbH | Chiral compounds |
JP2000178557A (ja) * | 1998-12-14 | 2000-06-27 | Minolta Co Ltd | 液晶組成物及び液晶光変調素子 |
WO2001096494A1 (en) * | 2000-06-09 | 2001-12-20 | Kent Displays, Inc. | Chiral additives for cholesteric displays |
DE10222166A1 (de) * | 2002-05-20 | 2003-12-11 | Fraunhofer Ges Forschung | Chirale Verbindungen und deren Verwendung |
DE102004038131B4 (de) * | 2004-08-05 | 2008-02-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Polymerisierbare oder vernetzbare Dotierstoffe, diese enthaltende flüssigkristalline Zusammensetzung und deren Verwendung |
US8574454B2 (en) * | 2006-12-22 | 2013-11-05 | Rolic Ag | Patternable liquid crystal polymer comprising thio-ether units |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3604898A1 (de) * | 1986-02-17 | 1987-08-20 | Hoechst Ag | Chirale umsetzungsprodukte aus mesogenen molekuelbausteinen und bifunktionell reaktionsfaehigen weinsaeurederivaten und ihre verwendung als dotierstoff in fluessigkristall-phasen |
US4873019A (en) * | 1986-12-20 | 1989-10-10 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Cyclopentane derivatives |
DE3713273A1 (de) * | 1987-04-18 | 1988-11-03 | Hoechst Ag | Verwendung von optisch aktiven 1,3-dioxolan-4-carbonsaeureestern als dotierstoffe in fluessigkristallmischungen, diese enthaltende fluessigkristallmischungen und neue optisch aktive 1,3-dioxolan-4-carbonsaeureester |
-
1991
- 1991-01-28 DE DE59106444T patent/DE59106444D1/de not_active Expired - Fee Related
- 1991-01-28 US US07/646,894 patent/US5637255A/en not_active Expired - Fee Related
- 1991-01-28 EP EP91101046A patent/EP0441213B1/de not_active Expired - Lifetime
- 1991-02-05 KR KR1019910001986A patent/KR100186864B1/ko not_active IP Right Cessation
- 1991-02-06 JP JP3035052A patent/JP2960975B2/ja not_active Expired - Fee Related
-
1997
- 1997-02-20 HK HK19997A patent/HK19997A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0441213B1 (de) | 1995-09-13 |
JP2960975B2 (ja) | 1999-10-12 |
EP0441213A2 (de) | 1991-08-14 |
DE59106444D1 (de) | 1995-10-19 |
JPH04244077A (ja) | 1992-09-01 |
EP0441213A3 (en) | 1991-09-25 |
US5637255A (en) | 1997-06-10 |
KR910015559A (ko) | 1991-09-30 |
KR100186864B1 (ko) | 1999-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20040128 |
|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |