PL425232A1 - New liquid-crystalline thiophen-3-yl 3,4,5-tri(4-(n-alkyl-1-yloxy)benzyl)benzoate esters and method for obtaining them - Google Patents

New liquid-crystalline thiophen-3-yl 3,4,5-tri(4-(n-alkyl-1-yloxy)benzyl)benzoate esters and method for obtaining them

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Publication number
PL425232A1
PL425232A1 PL425232A PL42523218A PL425232A1 PL 425232 A1 PL425232 A1 PL 425232A1 PL 425232 A PL425232 A PL 425232A PL 42523218 A PL42523218 A PL 42523218A PL 425232 A1 PL425232 A1 PL 425232A1
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PL
Poland
Prior art keywords
alkyl
yloxy
tri
benzyl
chain
Prior art date
Application number
PL425232A
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Polish (pl)
Other versions
PL238397B1 (en
Inventor
Krzysztof Artur Bogdanowicz
Agnieszka Iwan
Original Assignee
Wojskowy Instytut Techniki Inżynieryjnej Im. Profesora Józefa Kosackiego
Priority date (The priority date 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 date listed.)
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Application filed by Wojskowy Instytut Techniki Inżynieryjnej Im. Profesora Józefa Kosackiego filed Critical Wojskowy Instytut Techniki Inżynieryjnej Im. Profesora Józefa Kosackiego
Priority to PL425232A priority Critical patent/PL238397B1/en
Publication of PL425232A1 publication Critical patent/PL425232A1/en
Publication of PL238397B1 publication Critical patent/PL238397B1/en

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Przedmiotem zgłoszenia są nowe ciekłokrystaliczne estry 3,4,5-tri(4-(n-alkilo-1-yloksy)benzylo)benzoesanu tiofeno-3-ylu o wzorze 1, w którym R oznacza grupę alkilową o liczbie węgli w łańcuchu od 8 do 16, znajdujące zastosowanie przy produkcji baterii litowo-jonowych. Zgłoszenie obejmuje też sposób otrzymywania nowych ciekłokrystalicznych estrów 3,4,5-tri(4-(n-alkilo-1-yloksy)benzylo)benzoesanu tiofeno-3-ylu o wzorze 1, w którym R oznacza grupę alkilową o liczbie węgli w łańcuchu od 8 do 16. Przedmiotowy sposób polega na tym, że w atmosferze inertnego gazu, korzystnie azotu lub argonu, dodaje się związek o wzorze ogólnym 2, w którym R oznacza grupę alkilową o liczbie węgli w łańcuchu od 8 do 16 i katalizator przeniesienia międzyfazowego, korzystnie czwartorzędowej soli amonowej fluorowców, do 3-chlorotiofenu rozpuszczonego w rozpuszczalniku aprotycznym, korzystnie suchym i prowadzi się reakcję w przedziale temperatur (55 ÷ 65)°C w okresie od 4 dni do 12 dni, następnie otrzymaną mieszaninę wlewa się do wody z lodem, w stosunku objętościowym od 5:1 do 1:2, a otrzymany surowy produkt oczyszcza się wykorzystując protyczny i polarny rozpuszczalnik, korzystnie woda lub metanol.The subject of the application are new liquid crystal thiophene-3-yl 3,4,5-tri (4- (n-alkyl-1-yloxy) benzyl) benzoate esters of the formula I, in which R is an alkyl group with a carbon number in the chain from 8 to 16, used in the production of lithium-ion batteries. The application also covers the preparation of new thiophene-3-yl 3,4,5-tri (4- (n-alkyl-1-yloxy) benzyl) benzoate liquid crystal esters of the formula I, in which R is an alkyl group with the number of carbon in the chain 8 to 16. The present method consists in adding a compound of general formula II in which R is an alkyl group with a carbon number in the chain from 8 to 16 and an interphase transfer catalyst under an atmosphere of an inert gas, preferably nitrogen or argon, preferably quaternary ammonium salt of halogens, to 3-chlorothiophene dissolved in an aprotic, preferably dry solvent, and the reaction is carried out in the temperature range (55 ÷ 65) ° C for a period from 4 days to 12 days, then the obtained mixture is poured into ice water, in a volume ratio of 5: 1 to 1: 2, and the obtained crude product is purified using a protic and polar solvent, preferably water or methanol.

PL425232A 2018-04-16 2018-04-16 New liquid-crystalline thiophen-3-yl 3,4,5-tri(4-(n-alkyl-1-yloxy)benzyl)benzoate esters and method for obtaining them PL238397B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL425232A PL238397B1 (en) 2018-04-16 2018-04-16 New liquid-crystalline thiophen-3-yl 3,4,5-tri(4-(n-alkyl-1-yloxy)benzyl)benzoate esters and method for obtaining them

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL425232A PL238397B1 (en) 2018-04-16 2018-04-16 New liquid-crystalline thiophen-3-yl 3,4,5-tri(4-(n-alkyl-1-yloxy)benzyl)benzoate esters and method for obtaining them

Publications (2)

Publication Number Publication Date
PL425232A1 true PL425232A1 (en) 2019-10-21
PL238397B1 PL238397B1 (en) 2021-08-16

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Application Number Title Priority Date Filing Date
PL425232A PL238397B1 (en) 2018-04-16 2018-04-16 New liquid-crystalline thiophen-3-yl 3,4,5-tri(4-(n-alkyl-1-yloxy)benzyl)benzoate esters and method for obtaining them

Country Status (1)

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PL (1) PL238397B1 (en)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
J. CHEM, SOC. CHEM. COMMUN, 1 March 1990 (1990-03-01) *
TETRAHEDRON. LETT., TETRAHEDRON. LETT., 20 August 1999 (1999-08-20) *

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