SU520031A3 - The method of obtaining complex liquid crystal esters - Google Patents
The method of obtaining complex liquid crystal estersInfo
- Publication number
- SU520031A3 SU520031A3 SU1971742A SU1971742A SU520031A3 SU 520031 A3 SU520031 A3 SU 520031A3 SU 1971742 A SU1971742 A SU 1971742A SU 1971742 A SU1971742 A SU 1971742A SU 520031 A3 SU520031 A3 SU 520031A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acid
- mmol
- product
- absolute
- thionyl chloride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
- C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/04—Monocyclic monocarboxylic acids
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Description
(54) СПОСОБ ПОЛУЧЕНИЯ СЛОЖНЫХ ЭФИРОВ ЖИДКОКРИСТАЛЛИЧЕСКИХ Исходное соединение И получают известными приемами, В случае, если X обозначает хлор, то дл получени вышеуказанного соединени соответствующую бензойную кислоту подвергают взаимодействию с тионилхлоридом , причем дл последующего взаимодействи соединение И можно использовать его без выделени из реакционной массы. Целевой продукт формулы I выдел ют известными приемами (экстракци , хроматографическа очистка, перекристаллизаци ), В таблице приведены физические свойства нематических веществ формулы I(54) METHOD FOR OBTAINING COMPLEX ETHERS OF LIQUID CRYSTALLINE Source compound I are obtained by known methods. In the case X is chlorine, the corresponding benzoic acid is reacted with thionyl chloride to obtain the above compound, and for subsequent interaction the compound I can be used without isolation from the reaction mass . The desired product of formula I is isolated by known methods (extraction, chromatographic purification, recrystallization). The table shows the physical properties of the nematic substances of formula I
Примечание. Монотропные точки осветлени .Note. Monotropic points of clarification.
Соединение формулы 1 предпочтительно примен ют в виде их смесей друг с другом, соответствующие эвтектике, а также в виде их смесей с другими нематическими или ненематическими веществами.The compound of formula 1 is preferably used in the form of their mixtures with each other, corresponding to eutectic, as well as in the form of their mixtures with other nematic or non-material substances.
Данное изобретение иллюстрируетс нижеприведенными примерами.The invention is illustrated by the examples below.
Пример 1, 5,6 г (28,5 ммоль) хлорангидрида тен-бутилбензойной кислоты в 12 мл абсолютного бензола прибавл ют к 3,1 г (26 ммоль) гт-оксибензонитрила в 25 мл абсолютного пиридина. Выдерживают в течение ночи при комнатной температуре и затем перемешивают в течение 2 часExample 1 5.6 g (28.5 mmol) of ten-butylbenzoic acid chloride in 12 ml of absolute benzene is added to 3.1 g (26 mmol) of gt-oxybenzonitrile in 25 ml of absolute pyridine. Stand overnight at room temperature and then stirred for 2 hours.
при 50 с. После охлаждени экстрагируют, примен простой эфир, и экстракт промывают , примен разбавленную сол ную кислоту и воду. Наконец получают 9 г сырого сложного Т1-цианофеню10вого эфира тнн-бутилбензойной кислоты. Этот продукт -сырец раствор ют в толуоле и хроматографируют на 250 г силикагел . После перекристаллизации из гексана получают из чистых в тонкослойной хроматограмме фракций 4 г продук- та; т,Ш1, 67 С, Точка осветлени монотроЯна и равна 41,5 С,at 50 s. After cooling, the mixture is extracted with ether and the extract is washed with dilute hydrochloric acid and water. Finally, 9 g of crude T1-cyanophene 10-butn-benzoic acid ester are obtained. This β-product is dissolved in toluene and chromatographed on 250 g of silica gel. After recrystallization from hexane, 4 g of the product is obtained from fractions in the thin-layer chromatogram of the fractions; t, Ш1, 67 С, The point of clarification of the monotrope is equal to 41.5 С,
ЯМР - ИК-спектр соответствуют предлагаемой структуре.NMR - IR spectrum consistent with the proposed structure.
Исходный продукт можно получать еледующим образом,The original product can be obtained in the following manner,
50 г Т1-н-бутилбензойной кислоты раствор ют в 15О мл тионилхлорида и кип т т в течение 1 час с обратным холодильником . Затем удал ют избыточный тиснилхлорид при нормальном давлении и продукт дистиллируют в высоком вакууме; т,пл,100- 1О5°С (2-5 мм рт.ст.).50 g of T1-n-butylbenzoic acid is dissolved in 15 O ml of thionyl chloride and heated to reflux for 1 hour. Excess gravel is then removed under normal pressure and the product is distilled under high vacuum; t, pl, 100-1O5 ° C (2-5 mm Hg).
Пример 2, 3,1 г (26 ммоль) п-оксибензонитрила раствор ют в 40 мл абсолютного пиридина. Затем прибавл ют по капл м 6 г (28,5 ммоль) хлорида тт-н-пентилбензойной кислоты в 20 мл бензола при комнатной температуре и затем перемешивают в течение ночи. После недолгого нагревани обрабатывают аналогично примеру 1 и получают 7,5 г сырого сложного эфира, Зфир зфоматографируют, примен толуол -ацетон - 9:1)на силикагеле. Из однородной фракции после перекристаллизации из гексана получают 2,6 г сложного тД-цианофенилового эфира п-Н-пентилбензойной кислоты; т,пл, 60,5 С (и монотропной т,осв, 56,6°С),Example 2 3.1 g (26 mmol) of p-hydroxybenzonitrile are dissolved in 40 ml of absolute pyridine. Then, 6 g (28.5 mmol) of tt-n-pentylbenzoic acid chloride in 20 ml of benzene are added dropwise at room temperature and then stirred overnight. After heating briefly, it is worked up analogously to example 1 and 7.5 g of crude ester are obtained, Zfir is chromatographed using toluene-acetone 9: 1) on silica gel. From the homogeneous fraction, after recrystallization from hexane, 2.6 g of TD-cyanophenyl p-N-pentyl-benzoic acid ester are obtained; t, pl, 60.5 C (and monotropic t, ovc, 56.6 ° C),
Исходный продукт можно получить следующим образом:The original product can be obtained as follows:
15 г п-Н-пентилбензойной кислоты раствор ют в 100 мл тионилхлорида и кип т т в течение часа с обратным холодильником, Затем избыточный тионилхлорид удал ют путем перегонки и дистиллируют хпорангидридом кислоты в высоком вакууме; т,хш1, 104 С (2 мм рт,ст,).15 g of pNH-pentylbenzoic acid are dissolved in 100 ml of thionyl chloride and boiled for one hour under reflux. Then the excess thionyl chloride is removed by distillation and distilled with acid hporanhydride under high vacuum; t, hsh1, 104 C (2 mm Hg, st,).
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH258672A CH565234A5 (en) | 1972-02-23 | 1972-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU520031A3 true SU520031A3 (en) | 1976-06-30 |
Family
ID=4237116
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1971743A SU511849A3 (en) | 1972-02-23 | 1973-11-29 | The method of obtaining complex liquid crystal esters |
SU1971742A SU520031A3 (en) | 1972-02-23 | 1973-11-29 | The method of obtaining complex liquid crystal esters |
SU1971741A SU515440A3 (en) | 1972-02-23 | 1973-11-29 | The method of obtaining complex liquid crystal esters |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1971743A SU511849A3 (en) | 1972-02-23 | 1973-11-29 | The method of obtaining complex liquid crystal esters |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1971741A SU515440A3 (en) | 1972-02-23 | 1973-11-29 | The method of obtaining complex liquid crystal esters |
Country Status (20)
Country | Link |
---|---|
JP (2) | JPS5211677B2 (en) |
AR (1) | AR195823A1 (en) |
AT (1) | AT335530B (en) |
AU (1) | AU444106B2 (en) |
BE (1) | BE795776A (en) |
CA (1) | CA1013364A (en) |
CH (1) | CH565234A5 (en) |
CS (4) | CS177856B2 (en) |
DD (2) | DD108525A5 (en) |
ES (1) | ES411901A1 (en) |
FR (1) | FR2173165B1 (en) |
GB (1) | GB1373610A (en) |
IL (1) | IL41362A (en) |
IT (1) | IT978487B (en) |
NL (1) | NL152917B (en) |
NO (2) | NO132477C (en) |
SE (2) | SE402278B (en) |
SU (3) | SU511849A3 (en) |
TR (1) | TR18233A (en) |
ZA (1) | ZA73331B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4978683A (en) * | 1972-12-06 | 1974-07-29 | ||
JPS50111042A (en) * | 1974-02-13 | 1975-09-01 | ||
JPS50111043A (en) * | 1974-02-15 | 1975-09-01 | ||
JPS5177591A (en) * | 1974-12-28 | 1976-07-05 | Dainippon Toryo Kk | Nemachitsukuekishososeibutsu |
JPS54126775U (en) * | 1978-02-22 | 1979-09-04 | ||
DE2937911A1 (en) * | 1978-09-19 | 1980-03-27 | Daikin Ind Ltd | FLUORINE-CONTAINING PHENYLBENZOATE COMPOUNDS, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE |
FR2439765A1 (en) * | 1978-10-27 | 1980-05-23 | Thomson Csf | MESOMORPHIC ORGANIC COMPOUND HAVING A CHEMICAL FORMULA DERIVED FROM A TETRAFLUOROBENZOIC ACID, AND LIQUID CRYSTAL DEVICE USING SUCH A COMPOUND |
JPH0438873Y2 (en) * | 1985-08-30 | 1992-09-10 | ||
JPH045986Y2 (en) * | 1986-05-12 | 1992-02-19 | ||
US4833794A (en) * | 1988-08-10 | 1989-05-30 | Advance Systems, Inc. | Dryer apparatus for floating a running web and having baffle means for spent return air |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2024269A1 (en) * | 1970-05-19 | 1971-12-02 | Merck Patent Gmbh | Nematic mixtures - of low melting point, used in electronics |
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0
- BE BE795776D patent/BE795776A/en unknown
-
1972
- 1972-02-23 CH CH258672A patent/CH565234A5/xx not_active IP Right Cessation
-
1973
- 1973-01-16 ZA ZA730331A patent/ZA73331B/en unknown
- 1973-01-18 AU AU51229/73A patent/AU444106B2/en not_active Expired
- 1973-01-22 IL IL41362A patent/IL41362A/en unknown
- 1973-01-31 IT IT19833/73A patent/IT978487B/en active
- 1973-02-07 AR AR246463A patent/AR195823A1/en active
- 1973-02-09 CS CS970A patent/CS177856B2/cs unknown
- 1973-02-09 CS CS828A patent/CS177893B2/cs unknown
- 1973-02-09 CS CS827A patent/CS177892B2/cs unknown
- 1973-02-09 CS CS829A patent/CS177894B2/cs unknown
- 1973-02-19 NL NL737302276A patent/NL152917B/en not_active IP Right Cessation
- 1973-02-20 CA CA164,069A patent/CA1013364A/en not_active Expired
- 1973-02-21 SE SE7302455A patent/SE402278B/en unknown
- 1973-02-21 DD DD168980A patent/DD108525A5/xx unknown
- 1973-02-21 JP JP48020324A patent/JPS5211677B2/ja not_active Expired
- 1973-02-21 DD DD177564*A patent/DD110737A5/xx unknown
- 1973-02-22 ES ES411901A patent/ES411901A1/en not_active Expired
- 1973-02-22 FR FR7306255A patent/FR2173165B1/fr not_active Expired
- 1973-02-22 NO NO730/73A patent/NO132477C/no unknown
- 1973-02-22 TR TR18233A patent/TR18233A/en unknown
- 1973-02-22 AT AT155373A patent/AT335530B/en not_active IP Right Cessation
- 1973-02-23 GB GB905273A patent/GB1373610A/en not_active Expired
- 1973-06-06 NO NO2390/73A patent/NO139052C/en unknown
- 1973-11-29 SU SU1971743A patent/SU511849A3/en active
- 1973-11-29 SU SU1971742A patent/SU520031A3/en active
- 1973-11-29 SU SU1971741A patent/SU515440A3/en active
-
1975
- 1975-01-29 SE SE7500978A patent/SE7500978L/xx unknown
- 1975-04-16 JP JP50045391A patent/JPS522902B2/ja not_active Expired
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