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KR900001630A - Pyramid type liquid crystal expected tetramer and its manufacturing method - Google Patents

Pyramid type liquid crystal expected tetramer and its manufacturing method Download PDF

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Publication number
KR900001630A
KR900001630A KR1019890009878A KR890009878A KR900001630A KR 900001630 A KR900001630 A KR 900001630A KR 1019890009878 A KR1019890009878 A KR 1019890009878A KR 890009878 A KR890009878 A KR 890009878A KR 900001630 A KR900001630 A KR 900001630A
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KR
South Korea
Prior art keywords
tetramer
radical
general formula
alkyl
acid
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Application number
KR1019890009878A
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Korean (ko)
Inventor
달카날레 엔리코
본시그노레 스테파노
코메티 주제페
두 보셀 안니끄
Original Assignee
루이기 코티
몬테디손 에스.피.에이
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Publication of KR900001630A publication Critical patent/KR900001630A/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C35/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring
    • C07C35/21—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring polycyclic, at least one hydroxy group bound to a non-condensed ring

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Handcart (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

내용 없음No content

Description

피라밋형 액정 기대환족 4량체 및 그 제조방법Pyramid type liquid crystal expected tetramer and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 4량체 분자의 투시도.1 is a perspective view of tetrameric molecules of the invention.

제2도는 본 발명의 4량체의 다른 상들의 전이온도를 나타내는 그래프.2 is a graph showing the transition temperatures of different phases of the tetramer of the present invention.

제3도는 본 발명 4량체의 "크라운"이성질체를 나타낸다.3 shows the "crown" isomer of the tetramer of the present invention.

Claims (9)

하기 일반식의 감열호변성 12치환 기대환족 4량체Thermotropic twelve-substituted expected tetramers of the general formula (상기식에서 R기는 1기는 2탄소원자를 갖는 알킬 라디칼이고, R'기는 같거나 다르며 일반식(Wherein R group is an alkyl radical having 2 carbon atoms, R 'group is the same or different and is a general formula (Ⅱ) (Ⅱ) 의 라디칼을 나타낸다. 식중에서 n은 12 또는 그 이상의 정수이다.)Represents a radical. Where n is an integer of 12 or greater.) 제1항에 있어서, n은 12∼30의 정수인 4량체.The tetramer according to claim 1, wherein n is an integer of 12 to 30. 제1항 또는 제2항에 있어서, 라디칼 R'가 그 중에서도 동일한 4량체.The tetramer according to claim 1 or 2, wherein the radical R 'is the same among them. 제1항 내지 제3항중 어느 한 항에 있어서, 30℃∼100℃의 용융점 온도와 60℃∼120℃의 용융상태의 등방화 온도(청정점)를 갖는 4량체.The tetramer according to any one of claims 1 to 3, having a melting point temperature of 30 ° C to 100 ° C and an isotropic temperature (clean point) in a molten state of 60 ° C to 120 ° C. 제1항 내지 제4항 중 어느 한 항에 있어서, 중간상이 피라밋형 배열을 갖는 6각형 원주형상 타입인 4량체.The tetramer according to any one of claims 1 to 4, wherein the intermediate phase is a hexagonal columnar type having a pyramidal arrangement. 제1항 내지 제5항에 기재된 4량체의 , "기억장치"용 부품, 광학전자학의 "디스플레이" 및 포토토닉 분야의 "비선형 광학장치"용 부품으로서의 용도.Use of the tetramer according to claims 1 to 5 as a component for a "memory device", as a "display" in optical electronics and as a part for a "nonlinear optical device" in the phototonic field. 실온에서 피로갈룰과 알킬 알데히드의 아세탈을 산 촉매 존해하 및 메탄올 또는 에탄올과 같은 용매 매체내에서 반응시키는 것으로 이루어지는, 하기 일반식의 거대환족 4량체의 제조방법.A process for producing a macrocyclic tetramer of the general formula below, which comprises reacting pyrogallul with an acetal of alkyl aldehyde at room temperature in the presence of an acid catalyst and in a solvent medium such as methanol or ethanol. 제7항에 있어서, 알킬 알데히드의 아세탈이 하기 일반식을 갖는 방법.8. The process of claim 7, wherein the acetal of the alkyl aldehyde has the following general formula. (상기식에서 R은 C1∼C2알킬라디칼이고 R"는 1∼30탄소원자를 갖는 알킬, 시클로알킬, 아릴, 알킬아릴 라디칼이다.)(Wherein R is a C 1 to C 2 alkyl radical and R ″ is an alkyl, cycloalkyl, aryl, alkylaryl radical having 1 to 30 carbon atoms.) 제7항 또는 제8항에 있어서, 촉매가 염산, 황산, 인산 및 p-톨루엔 술폰산으로부터 선택되는 방법.The process according to claim 7 or 8, wherein the catalyst is selected from hydrochloric acid, sulfuric acid, phosphoric acid and p-toluene sulfonic acid. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890009878A 1988-07-11 1989-07-11 Pyramid type liquid crystal expected tetramer and its manufacturing method KR900001630A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8821318A IT1226343B (en) 1988-07-11 1988-07-11 Ski-holder
IT2138A/88 1988-07-11

Publications (1)

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KR900001630A true KR900001630A (en) 1990-02-27

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KR1019890009878A KR900001630A (en) 1988-07-11 1989-07-11 Pyramid type liquid crystal expected tetramer and its manufacturing method

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IT (1) IT1226343B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190053230A (en) * 2016-09-15 2019-05-17 아크조노벨코팅스인터내셔널비.브이. Fastener retaining materials and methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190053230A (en) * 2016-09-15 2019-05-17 아크조노벨코팅스인터내셔널비.브이. Fastener retaining materials and methods

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Publication number Publication date
IT1226343B (en) 1991-01-11
IT8821318A0 (en) 1988-07-11

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PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19890711

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