CN102898288A - Difluorovinyl-ether-containing liquid crystal compound and composition and liquid crystal displayer thereof - Google Patents

Difluorovinyl-ether-containing liquid crystal compound and composition and liquid crystal displayer thereof Download PDF

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CN102898288A
CN102898288A CN2012103885347A CN201210388534A CN102898288A CN 102898288 A CN102898288 A CN 102898288A CN 2012103885347 A CN2012103885347 A CN 2012103885347A CN 201210388534 A CN201210388534 A CN 201210388534A CN 102898288 A CN102898288 A CN 102898288A
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CN102898288B (en
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阮群奇
史志兵
谭玉东
房元飞
储著龙
黄伟
丁文全
丁艳
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Jiangsu Hecheng Display Technology Co Ltd
Daxin Materials Corp
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Abstract

The invention provides difluorovinyl-ether-containing liquid crystal compounds of a general formula (I) and a synthesis method, a composition and use thereof in liquid crystal elements. The novel liquid crystal compound provided by the invention has excellent chemical and physical properties, and lower optical anisotropy and higher dielectric anisotropy than other liquid crystal materials. The liquid crystal composition can be used in liquid crystal elements with the liquid crystal medium, such as TN, STN, TFT, VA, ECB, OCB, LCP, PDLC, BiNem, LC LENS, FFS and IPS liquid crystal elements.

Description

The liquid crystalline cpd and composition and the liquid-crystal display that contain the difluoroethylene ethers
Technical field
The composition that the present invention relates to a kind of liquid crystalline cpd and comprise described liquid crystalline cpd more particularly, the present invention relates to a kind of novel liquid crystalline cpd that contains the difluoroethylene ethers and the liquid-crystal composition that comprises described liquid crystalline cpd.
Background technology
On the physics material is divided into three-state, i.e. solid-state, liquid state and gaseous state.At occurring in nature, that most of material variation with temperature only presents is solid-state, liquid state and three kinds of states of gaseous state, liquid crystal (Liquid Crystal) is a kind of new state of matter that is different from common solid-state, liquid state and gaseous state, it is the state of matter that can have liquid and crystal characteristic in certain temperature range concurrently, also be called mesomorphic phase or intermediary's phase, therefore be called again the 4th attitude of material.
The kind of liquid crystal is a lot, and the liquid crystal with synthetic that naturally exists reaches thousands of kinds, but they are organic compound basically.Come inducing classification by the condition that mesomorphic phase forms, liquid crystal can be divided into thermotropic liquid crystal, lytropic liquid crystals, induction liquid crystal and stream and cause liquid crystal.
At present, all be thermotropic liquid crystal basically for the liquid crystal material that shows.Thermotropic liquid crystal is because of the difference of molecular arrangement order state, can be divided into smectic phase (Smectic) liquid crystal (claim not only layered liquid crystal), nematic phase (Nematic) liquid crystal (but also claiming nematic liquid crystal), cholesteryl phase (Cholestevic) liquid crystal (being also referred to as the spirrillum liquid crystal).The physical properties of these phases is known.Be used for the molecular characterization of the compound of field of electro-optics, a rigid backbone is normally arranged, it comprises 1 of for example connection, 4-phenylene or 1,4-cyclohexylidene or heterocyclic system, its each other as far as possible away from the position on by so-called mesomorphic group, replace such as alkyl, alkoxyl group or cyano group.
Be used for the liquid crystal media in electrooptics field by the compositions of mixtures of these compounds, and wherein also use the compound that does not have the conversion from crystal to the mesomorphic phase change.Classify by the liquid-crystal display mode, liquid crystal compound can be divided into dynamic scattering mode (DS type), guest-host type (GH type), twisted nematic (TN type), super-twist nematic (STN type), film transistor type (TFT type) and strong dielectric type (FLC type) etc.Liquid crystal material has been widely used in the making of the liquid crystal display device such as robot calculator, meter device, instrument panel for motor vehicle, electronic memo, mobile telephone, computer, televisor at present.
Up to now, all this used liquid crystal materials have synthesized multiple compounds, visual its display mode or type of drive and uses thereof and be suitable for.Can also strengthen year by year the demand that improves the liquid crystal display device performance on the other hand, for satisfying this demand, need the continual exploitation novel liquid crystal compound.
Summary of the invention
The purpose of this invention is to provide a kind of novel liquid crystalline cpd that contains the difluoroethylene ethers.
Another object of the present invention provides a kind of synthetic method of synthetic described liquid crystalline cpd.
Another purpose of the present invention provides a kind of composition that comprises described liquid crystalline cpd.
A further object of the present invention provides the application of a kind of described liquid-crystal composition in liquid crystal cell, can be used for containing the liquid crystal cell of liquid crystal media, such as the liquid crystal cell of the display formats such as TN, STN, TFT, VA, ECB, OCB, LCP, PDLC, BiNem, LC LENS, FFS and IPS.
One aspect of the present invention provides a kind of novel liquid crystal compound, and described compound has the structure shown in the logical formula I:
Figure BDA00002251869800021
Wherein,
R 1And R 2Identical or not identical, be selected from independently of one another by-H ,-F ,-Cl ,-CN ,-NCS ,-SCN ,-OCN ,-NCO,
Figure BDA00002251869800022
The halo of 1-20 carbon atom or not halo or the not thiazolinyl of the straight or branched of halo or the group that alkene oxygen base forms of the alkyl of the straight or branched of halo or alkoxyl group and 2-20 carbon atom, wherein, at described R 1With described R 2In at least one-CH 2-can by-O-,-S-,-SiH 2-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure BDA00002251869800023
-CO-O-or-O-CO-substitutes, its prerequisite is that heteroatoms directly is not connected to each other;
Ring A 1, A 2, A 3, A 4, A 5And A 6Identical or different, be selected from independently of one another by
Figure BDA00002251869800024
Figure BDA00002251869800025
Figure BDA00002251869800026
The ring texture of the group that forms;
Wherein,
Described ring texture can also meet following a), b), c) and d) at least one:
A) the one or more hydrogen atoms in the described ring texture can by-D ,-F ,-Cl ,-CN ,-CF 3,-OCF 3,-CH 2F ,-OCH 2F ,-CF 2H ,-OCF 2H ,-OCH 3Or-CH 3Substitute;
B) one or more-CH in the described ring texture 2-quilt-O-,-SiH 2-,-S-or-CO-substitutes, its prerequisite is that heteroatoms directly is not connected to each other;
C) in described ring texture, in the aromatic ring structure one or more-CH-can substitute by N;
D) one or more in the described ring texture Can by
Figure BDA00002251869800032
Substitute;
Z 1, Z 3, Z 4And Z 5Identical or different, be selected from independently of one another by carbon-carbon single bond ,-CO-O-,-CF 2O-,-CH 2O-,-OCH 2-,-CH 2CH 2-,-CF 2CH 2-,-CF=CF-,-CH=CH-,-CH=CF-,-C 2F 4-,-(CH 2) 4-,-(CF 2) 4-,-OCF 2CF 2O-,-CF 2CF 2CF 2O-,-CH 2CH 2CF 2O-,-OCH 2CF 2O-,-CH 2CF 2OCH 2-,-CH=CHCF 2O-,-CF 2OCH=CH-,-CF 2OCF=CH-,-CF 2OCH=CF-,-CF=CFCF 2O-,-CF 2OCF=CF-,-CH=CHCH 2CH 2-,-CH 2CH=CHCH 2-,-C 2H 4OCH 2-,-OCH 2CH 2CH 2-,-CF=CF=CF=CF-,-C ≡ C-CF=CF-,-C ≡ C-CF=CF-C ≡ C-,-C ≡ C-,-CF=CF-C ≡ C-CF=CF-and-C ≡ C-CF 2The group that O-forms;
A be 0 or 1, b, c and d identical or different, be 0,1 or 2 independently of one another.
In some preferred embodiments, R 1And R 2Identical or different, be selected from independently of one another by H ,-F ,-Cl ,-CN ,-NCS,
Figure BDA00002251869800033
The halo of the halo of 1-10 carbon atom or the alkyl of unsubstituted straight or branched or alkoxyl group and 2-10 carbon atom or the group that forms of the thiazolinyl of the straight or branched of halo or alkene oxygen base not, wherein, at described R 1With described R 2In at least one-CH 2-can by-O-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure BDA00002251869800034
Or-CO-O-is alternative, and its prerequisite is that heteroatoms directly is not connected to each other.
In some preferred embodiments, ring A 1, A 2, A 3, A 4, A 5And A 6Identical or different, be selected from independently of one another by
Figure BDA00002251869800035
Figure BDA00002251869800036
Figure BDA00002251869800037
The group that forms.
In some preferred embodiments, ring A 1, A 2, A 3, A 4, A 5And A 6Be independently from each other separately by
Figure BDA00002251869800038
Figure BDA00002251869800039
Figure BDA000022518698000310
The ring texture of the group that forms.
In some preferred embodiments, Z 1, Z 3, Z 4And Z 5Identical or different, be selected from independently of one another by-CO-O-,-CF 2O-,-CH 2O-,-OCH 2-,-CH 2CH 2-,-CF=CF-,-CH=CH-,-(CH 2) 4-,-C 2F 4-,-(CF 2) 4-,-OCF 2CF 2O-,-CF=CFCF 2O-,-group that C ≡ C-and carbon-carbon single bond form.
In some preferred embodiments, Z 1, Z 3, Z 4And Z 5Be independently from each other separately by-CO-O-,-CF 2O-,-CH 2O-,-CH 2CH 2-,-CF=CF-,-CH=CH-,-C 2F 4-,-(CH 2) 4-,-(CF 2) 4-,-OCF 2CF 2O-,-CF=CFCF 2O-,-group that C ≡ C-and carbon-carbon single bond form.
In some preferred embodiments, Z 1, Z 3, Z 4And Z 5Be independently from each other separately by-CF 2O-,-CH 2O-,-CH 2CH 2-,-CF=CF-,-CH=CH-,-CF=CFCF 2O-,-group that C ≡ C-and carbon-carbon single bond form.
In some preferred embodiments, a is 0 or 1; B+c+d≤3.
In some preferred embodiments, the compound of logical formula I is particularly preferably one or more in the group that following compound forms:
Figure BDA00002251869800041
Figure BDA00002251869800061
And
Figure BDA00002251869800062
Wherein,
R 1And R 2Identical or different, be selected from independently of one another by H ,-F ,-Cl ,-halo or the alkyl of unsubstituted straight or branched or the group that alkoxyl group forms of CN and 1-7 carbon atom, wherein, at described R 1With described R 2In at least one-CH 2-can by-O-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure BDA00002251869800071
Or-CO-O-is alternative, and its prerequisite is that heteroatoms directly is not connected to each other.
Another object of the present invention provides a kind of method for preparing above-claimed cpd, comprises the steps:
The compound of general formula (III-2) and sodium hydride form sodium salt, again with the tetrafluorodibromoethane reaction, obtain the compound of general formula (III-1); The compound process Lithium Aluminium Hydride reduction of general formula (III-1) obtains the compound of logical formula III.
Figure BDA00002251869800072
The compound of logical formula III and sodium hydride form sodium salt, and the compound with general formula (IV) reacts again, obtains the compound of logical formula I.
Figure BDA00002251869800073
The compound of general formula (III-2) and logical formula III mainly is by commercially available intermediate or the synthetic method known altogether is synthetic obtains, and the synthetic method of wherein knowing altogether comprises that esterification, witting reaction, carbon-carbon cross coupling reaction (Suzuki coupling, Negishi coupling, Heck coupling, Sonogashira coupling and transition metal-catalyzed Grignard reagent cross-coupling reaction etc.) and reduction reaction etc. obtain.
The process of principal reaction is as follows:
1) in the anhydrous dimethyl formamide solvent; under the argon shield; the compound that adds general formula (III-2); add sodium hydride in batches; be warming up to 60 ℃ of reactions 1 hour; after being cooled to room temperature, drip the dimethyl formamide solution of ethyl bromide difluoride, room temperature reaction obtained the compound of general formula (III-1) in 12 hours again.
Figure BDA00002251869800075
2) compound dissolution of general formula (III-1) adds zinc powder under the nitrogen protection in anhydrous acetonitrile, and the 10 ~ 12h that refluxes obtains the compound of logical formula III.
Figure BDA00002251869800076
3) compound dissolution of logical formula IV is in the anhydrous dimethyl formamide solvent, N 2Add sodium hydride under the lower protection, be warming up to 60 ℃ of reaction 1h, add the compound of general formula (III-1), 60 ℃ are reacted 1h, obtain the compound of logical formula V.
Figure BDA00002251869800081
Another purpose of the present invention provides a kind of liquid-crystal composition, comprises the described liquid crystalline cpd of one or more logical formula I.
In some embodiments, described liquid-crystal composition comprises a kind of to five kinds of described liquid crystalline cpds of logical formula I, is preferably described liquid-crystal composition and comprises two kinds to the four kinds described liquid crystalline cpds of logical formula I.
Can be usually known mesomorphic compound according to the other blending ingredients of liquid-crystal composition of the present invention, can mixedly form the compound of mesomorphic phase with its pure state or with other components.Some this type of compound for example is being mentioned among D E1804894 and the CN1158602A.Preferably, in some embodiments, described liquid-crystal composition also comprises the liquid crystalline cpd of at least a logical formula II:
Wherein,
R 3And R 4Identical or different, be selected from independently of one another by-H ,-F ,-Cl ,-CN ,-NCS ,-SCN ,-OCN ,-NCO ,-OCH=CF 2With the halo of 1-20 carbon atom or the group that forms of the alkyl of the straight or branched of halo or alkoxyl group not, wherein, at described R 3With described R 4In at least one-CH 2-can by-O-,-S-,-SiH 2-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure BDA00002251869800083
-CO-O-or-O-CO-substitutes, its prerequisite is that heteroatoms directly is not connected to each other;
B 1, B 2And B 3And B 4Identical or different, be selected from independently of one another by
Figure BDA00002251869800084
Figure BDA00002251869800085
2,3-, two fluoro-Isosorbide-5-Nitrae-phenylenes, 3-fluoro-Isosorbide-5-Nitrae-phenylene, 2-chloro-3-fluoro-1,4-phenylene, 2-fluoro-Isosorbide-5-Nitrae-phenylene, 2,6-two fluoro-1,4-phenylene, 3,5-two fluoro-Isosorbide-5-Nitrae-phenylenes, indane-2,5-two bases, piperidines-Isosorbide-5-Nitrae-two base, naphthalene-2,6-two bases, perhydronaphthalene-2,6-two bases and 1,2,3,4-naphthane-2, the group that 6-two bases form, described In one or two non-conterminous-CH 2-can by-O-or-S-substitutes, and is described Upper one or more H can be replaced by F independently of one another, and is described
Figure BDA00002251869800088
In one or two non-conterminous-CH-can be substituted by N, described
Figure BDA00002251869800089
In one or two non-conterminous-CH 2-can be substituted by O, described
Figure BDA000022518698000810
Upper one or more H can be replaced by F independently of one another;
Y 1, Y 2And Y 3Identical or different, be selected from independently of one another by-OCO-,-CO-O-,-CF 2O-,-CH 2O-,-OCH 2-,-CH 2CH 2-,-CF 2CH 2-,-CF=CF-,-CH=CH-,-CH (CH 3) CH 2-,-CH 2CH (CH 3)-,-(CH 2) 3O-,-O (CH 2) 3-,-COS-,-SCO-,-CH=CF-,-C 2F 4-,-(CH 2) 4-,-C 4F 8-,-OCF 2CF 2O-,-CF 2CF 2CF 2O-,-CH 2CH 2CF 2O-,-CH 2CF 2OCH 2-,-CH=CHCF 2O-,-CF 2OCH=CH-,-CF 2OCF=CH-,-CF 2OCH=CF-,-CF=CFCF 2O-,-CF 2OCF=CF-,-CH=CHCH 2CH 2-,-C 2H 4OCH 2-,-CH 2CH=CHCH 2-,-OCH 2CH 2CH 2-,-CF=CF-CF=CF-,-C ≡ C-CF=CF-,-C ≡ C-CF=CF-C ≡ C-,-CF=CF-C ≡ C-CF=CF-,-C ≡ C-CF 2O-,-group that C ≡ C-and singly-bound form, wherein, at described Y 1And Y 2In any one-CH 2-can be by-SiH 2-substitute;
M, n and p are identical or different, are 0,1 or 2 independently of one another.
Described liquid crystalline cpd is selected from the group that is comprised of following compound:
Figure BDA00002251869800091
Figure BDA00002251869800101
Figure BDA00002251869800111
And
Figure BDA00002251869800112
In some embodiments, described liquid-crystal composition comprises that accounting for described liquid-crystal composition gross weight 5-50% leads to the described compound of formula I; Account for the logical described compound of formula II of described liquid-crystal composition gross weight 50-95%, preferably account for the logical described compound of formula I of described liquid-crystal composition gross weight 10-30%; Account for the logical described compound of formula II of described liquid-crystal composition gross weight 70-90%.
Another purpose of the present invention provides a kind of liquid-crystal display, and described liquid-crystal display comprises the liquid-crystal composition that contains liquid crystalline cpd of the present invention.
A further object of the present invention provides a kind of novel liquid crystalline cpd that contains the difluoroethylene ethers, it is suitable as the composition of liquid crystal media, can be applicable to contain the liquid crystal cell of liquid crystal media, such as the liquid crystal cell of the display formats such as TN, STN, TFT, VA, ECB, OCB, LCP, PDLC, BiNem, LC LENS, FFS and IPS.
The novel liquid crystalline cpd that contains six hydrogen indenes classes provided by the invention has good chemistry and physical properties, has lower viscosity than other liquid crystal material, larger optical anisotropy and larger dielectric anisotropy.
Embodiment
Below with reference to specific embodiments the present invention is described.Need to prove, the following examples are example of the present invention, only are used for illustrating the present invention, and are not used for limiting the present invention.In the situation that do not depart from purport of the present invention or scope, can carry out the present invention and conceive interior other combination and various improvement.
For ease of expressing, below among each embodiment, the unit structure of liquid crystalline cpd is with the listed coded representation of table 1:
The unit structure code of table 1 liquid crystalline cpd
Figure BDA00002251869800121
Take the compound of following structural formula as example:
Figure BDA00002251869800122
This structural formula is such as by code listed in Table 1 expression, and then can be expressed as: 3PUQUF, the Q in the code represent difluoro methylene oxygen base; C in the code represents cyclohexyl; U in the code represents 2,5-, two fluoro phenylenes.
Embodiment 1
The synthetic route of the compound H CLC-12 of preparation is as follows,
Figure BDA00002251869800131
Its concrete technology step is as follows:
1) HCLC-12-2's is synthetic
The 500mL there-necked flask adds 21.8g the third ring phenol, 200mL dimethyl formamide (DMF); dissolving adds 8g60% sodium hydride (NaH) under the nitrogen protection, be warming up to 60 ℃ of reaction 1h; be cooled to 30 ℃, drip tetrafluorodibromoethane 31.2g, add room temperature reaction 12h.Add ethyl acetate 200ml, water 200ml, layering, water layer is used the 200ml ethyl acetate extraction again, merges organic layer, wash 2 times, the salt solution washed twice, the dry crude product 38.5g that concentrates to get, the thick post of crossing of sherwood oil obtains 34g.GC:98.8%, yield 85.6%.
2) HCLC-12-1's is synthetic
Add 20gHCLC-12-2,6g zinc powder and 100ml acetonitrile in the 250ml reaction flask, refluxed under nitrogen 11h is cooled to room temperature, and suction filtration is spin-dried for to get crude product.After crude product added petroleum ether dissolution, sherwood oil stripped post, was spin-dried for to get product 13.4g.Yield 89%, GC:86.3%.
3) HCLC-12's is synthetic
Add 1.9g60% sodium hydride NaH, 3.2g2 in the 250ml reaction flask, 3-two fluoro-4-thanatol and 100mlDMF, N 2Under be warming up to 60 ℃ the reaction 1h, add 6g HCLC-12-1,60 ℃ of reaction 6h add water 300ml, ethyl acetate 200ml extraction, washing, the salt water washing, drying, concentrated, sherwood oil ether column chromatography gets the 8.4g colorless oil, obtain water white transparency oily thing 1.97g, GC:99.7%, yield 25% with 10ml ethanol for four times at-30 ℃ of lower recrystallizations again.
1H?NMR(300MHz,CDCl 3)δ7.50-7.21(m,2H),6.94-6.76(m,2H),6.55-6.60(m,2H),4.09(q,J=11.8Hz,2H),2.69-2.73(m,1H),1.89-1.09(m,16H),0.93-0.82(m,3H)。
Embodiment 2
The synthetic route of the compound H CLC-12K of preparation is as follows,
Figure BDA00002251869800141
[4,4-, two fluoro-(3,4,5-trifluoromethoxy phenoxy base) methyl]-3,5-difluorobenzene boric acid can be with prior art perception method synthetic (but its synthetic method reference European Journal of Organic Chemistry, 2008, V20p3479 – 3487) altogether.
Its concrete technology step is as follows:
1) HCLC-12K-4's is synthetic
The 250mL there-necked flask adds 15g n-propyl phenol and 150mL DMF, and dissolving adds 4.4g sodium hydride (NaH) under the nitrogen protection, is warming up to 60 ℃ of reaction 1h, is cooled to 30 ℃, drips tetrafluorodibromoethane 36g, adds room temperature reaction 12h.Add ethyl acetate 200ml, water 200ml, layering, water layer is used the 200ml ethyl acetate extraction again, merges organic layer, wash 2 times, the salt solution washed twice, the dry crude product 30g that concentrates to get, the thick post of crossing of sherwood oil obtains 22.5g.GC:96.5%, yield 64.8%.
2) HCLC-12K-3's is synthetic
Add 22.5g HCLC-12K-4,10g zinc powder and 150ml acetonitrile in the 250ml reaction flask, refluxed under nitrogen 11h is cooled to room temperature, and suction filtration is spin-dried for to get crude product.Crude product is crossed post after adding petroleum ether dissolution, is spin-dried for to get product 9.6g.Yield 62.3%, GC:85.8%.
3) HCLC-12K-2's is synthetic
Add 20g para hydroxybenzene boric acid, 43.5g3-fluoro-4-iodine tribromophenyl, 30.5g anhydrous sodium carbonate, 144mL deionized water, 160mL toluene and 80mL dehydrated alcohol in the single port bottle of 1L dried and clean, after the usefulness argon replaces is emptying, add 0.5g Pd[P (Ph) 3] 4Reflux 6h under the argon shield; separatory after the reaction solution cooling, the 20g anhydrous sodium sulfate drying, organic phase is steamed to the greatest extent toluene; cross silicagel column; with sherwood oil and the eluent ethyl acetate of 3:1, chromatographic solution steams to the greatest extent solvent with Rotary Evaporators, obtains the 42g light yellow solid; crude product is used 100mL dehydrated alcohol and 100ml toluene recrystallization again; obtain the 31.5g white solid, GC content 99.6%, yield 82%.
4) HCLC-12K-1's is synthetic
Add 6g HCLC-12K-2,8g[4 in the single port bottle of 250mL dried and clean, 4-two fluoro-(3,4,5-trifluoromethoxy phenoxy base) methyl]-3,5-difluorobenzene boric acid, 4.8g anhydrous sodium carbonate, 25mL deionized water, 100mL toluene and 25mL dehydrated alcohol, after emptying with argon replaces, add 0.5g Pd[P (Ph) 3] 4Reflux 12h under the argon shield; separatory after the reaction solution cooling; organic phase is steamed to the greatest extent toluene, crosses silicagel column, with sherwood oil and the eluent ethyl acetate of 3:1; chromatographic solution steams to the greatest extent solvent with Rotary Evaporators; obtain the 11g light yellow solid, crude product is used 20mL toluene and 10mL dehydrated alcohol recrystallization again, obtains the 9.5g white solid; GC content 99.7%, yield 85%.
5) HCLC-12K's is synthetic
Add 0.7g60%NaH, 5g HCLC-12K-1,50ml DMF in the 100ml reaction flask, N 2Under be warming up to 60 ℃ of reaction 1h, add 3.0gHCLC-12K-3,60 ℃ of reaction 1h, add water 100ml, ethyl acetate 200ml extraction, washing, salt water washing, drying, concentrated, cross silicagel column, sherwood oil and eluent ethyl acetate with 5:1, chromatographic solution steams most solvent with Rotary Evaporators and gets the 6.4g colorless oil, use 15ml toluene, and the 20ml ethyl alcohol recrystallization obtains white solid 2.9g four times again, GC:99.6%, yield 42%.
1H?NMR(300MHz,CDCl 3)δ7.94(dd,J=15.0,10.1Hz,1H),7.71(dd,J=16.0,3.0Hz,1H),7.62–7.53(m,2H),7.36–7.28(m,,2H),7.08–6.97(m,3H),6.95–6.76(m,6H),2.61(t,J=15.5Hz,2H),1.74–1.55(m,2H),0.94(t,J=13.2Hz,3H)。
Embodiment 3
The synthetic route of the compound H CLC-12M of preparation is as follows,
Figure BDA00002251869800151
Its concrete technology step is as follows:
1) HCLC-12M-1's is synthetic
Add 4g p bromophenol, 7.8g[4 in the single port bottle of 250mL dried and clean, 4-two fluoro-(3,4,5-trifluoromethoxy phenoxy base) methyl]-3,5-difluorobenzene boric acid, 4.8g anhydrous sodium carbonate, 25mL deionized water, 100mL toluene and 25mL dehydrated alcohol, after emptying with argon replaces, add 0.5g Pd[P (Ph) 3] 4Reflux 12h under the argon shield; separatory after the reaction solution cooling; organic phase is steamed to the greatest extent toluene, crosses silicagel column, with sherwood oil and the eluent ethyl acetate of 3:1; chromatographic solution steams to the greatest extent solvent with Rotary Evaporators; obtain the 9.2g light yellow solid, crude product is used 20mL dehydrated alcohol recrystallization twice again, obtains the 8.1g white solid; GC content 99.6%, yield 87%.
2) HCLC-12M's is synthetic
Add 0.7g60%NaH, 5g HCLC-12M-1 and 50ml DMF in the 100ml reaction flask, N 2Under be warming up to 60 ℃ of reaction 1h, add 2.6g HCLC-12K-3,60 ℃ of reaction 1h, add water 100ml, ethyl acetate 200ml extraction, washing, salt water washing, dry, concentrated, cross silicagel column, with sherwood oil and the eluent ethyl acetate of 5:1, chromatographic solution steams to the greatest extent with Rotary Evaporators, and solvent gets the 6.9g colorless oil, obtain white solid 2.9g four times with 20ml sherwood oil and 20ml ethyl alcohol recrystallization again, GC:99.6%., yield 39%.
1H?NMR(300MHz,CDCl 3)δ7.62–7.53(m,2H),7.29–7.35(m,2H),7.06–6.97(m,2H),6.93–6.76(m,6H),2.61(t,J=15.6Hz,2H),1.74–1.55(m,2H),0.94(t,J=13.2Hz,3H)。
Embodiment 4
The synthetic route of the compound H CLC-12N of preparation is as follows,
Figure BDA00002251869800161
According to the method for synthetic HCLC-12M-1, replace p bromophenol synthetic with 3-fluoro-4-bromophenol when synthetic HCLC-12N-1, the synthetic method according to compound H CLC-12M can obtain white solid HCLC-12N again.
1H?NMR(300MHz,CDCl 3)δ7.62-7.57(m,1H),7.27-7.09(m,5H),6.95-6.83(m,4H),6.53-6.62(m,1H),2.62(t,J=15.6Hz,2H),1.68-1.55(m,2H),0.93(t,J=13.2Hz,3H)。
Following embodiment 5 is the performance test results of liquid-crystal composition of the present invention:
In following examples test event to write a Chinese character in simplified form code name as follows:
Cp(℃): clearing point (to row-isotropic phase transition temperature)
η: kinetic viscosity (mm 2S -1, 20 ℃, except as otherwise noted)
Δ n: optical anisotropy (589nm, 20 ℃)
Δ ε: dielectric anisotropy (1KHz, 25 ℃)
Embodiment 5
Table 2 is the relevant parameter that HCLC-12K and HCLC-12M are configured to liquid-crystal composition and obtain:

Claims (15)

1. the compound of a kind as logical formula I:
Wherein,
R 1And R 2Identical or not identical, be selected from independently of one another by-H ,-F ,-Cl ,-CN ,-NCS ,-SCN ,-OCN ,-NCO,
Figure FDA00002251869700012
The halo of 1-20 carbon atom or not halo or the not thiazolinyl of the straight or branched of halo or the group that alkene oxygen base forms of the alkyl of the straight or branched of halo or alkoxyl group and 2-20 carbon atom, wherein, at described R 1With described R 2In at least one-CH 2-can by-O-,-S-,-SiH 2-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure FDA00002251869700013
-CO-O-or-O-CO-substitutes, its prerequisite is that heteroatoms directly is not connected to each other;
Ring A 1, A 2, A 3, A 4, A 5And A 6Identical or different, be selected from independently of one another by
Figure FDA00002251869700014
Figure FDA00002251869700015
Figure FDA00002251869700016
The ring texture of the group that forms;
Selectively, described ring texture also meet following a), b), c) and d) at least one:
A) one or more hydrogen atom in the described ring texture can by-D ,-F ,-Cl ,-CN ,-CF 3,-OCF 3,-CH 2F ,-OCH 2F ,-CF 2H ,-OCF 2H ,-OCH 3Or-CH 3Substitute;
B) one or more-CH in the described ring texture 2-quilt-O-,-SiH 2-,-S-or-CO-substitutes, its prerequisite is that heteroatoms directly is not connected to each other;
C) in described ring texture, in the aromatic ring structure one or more-CH-can substitute by N;
D) one or more in the described ring texture
Figure FDA00002251869700017
Can by
Figure FDA00002251869700018
Substitute;
Z 1, Z 3, Z 4And Z 5Identical or different, be selected from independently of one another by carbon-carbon single bond ,-CO-O-,-CF 2O-,-CH 2O-,-OCH 2-,-CH 2CH 2-,-CF 2CH 2-,-CF=CF-,-CH=CH-,-CH=CF-,-C 2F 4-,-(CH 2) 4-,-(CF 2) 4-,-OCF 2CF 2O-,-CF 2CF 2CF 2O-,-CH 2CH 2CF 2O-,-OCH 2CF 2O-,-CH 2CF 2OCH 2-,-CH=CHCF 2O-,-CF 2OCH=CH-,-CF 2OCF=CH-,-CF 2OCH=CF-,-CF=CFCF 2O-,-CF 2OCF=CF-,-CH=CHCH 2CH 2-,-CH 2CH=CHCH 2-,-C 2H 4OCH 2-,-OCH 2CH 2CH 2-,-CF=CF=CF=CF-,-C ≡ C-CF=CF-,-C ≡ C-CF=CF-C ≡ C-,-C ≡ C-,-CF=CF-C ≡ C-CF=CF-and-C ≡ C-CF 2The group that O-forms;
A be 0 or 1, b, c and d identical or different, be 0,1 or 2 independently of one another.
2. compound according to claim 1 is characterized in that, R 1And R 2Identical or different, be selected from independently of one another by H ,-F ,-Cl ,-CN ,-NCS,
Figure FDA00002251869700021
The halo of the halo of 1-10 carbon atom or the alkyl of unsubstituted straight or branched or alkoxyl group and 2-10 carbon atom or the group that forms of the thiazolinyl of the straight or branched of halo or alkene oxygen base not, wherein, at described R 1With described R 2In at least one-CH 2-can by-O-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure FDA00002251869700022
Or-CO-O-is alternative, and its prerequisite is that heteroatoms directly is not connected to each other.
3. compound according to claim 1 is characterized in that, ring A 1, A 2, A 3, A 4, A 5And A 6Identical or different, be selected from independently of one another by
Figure FDA00002251869700023
Figure FDA00002251869700024
Figure FDA00002251869700025
The group that forms.
4. compound according to claim 3 is characterized in that, ring A 1, A 2, A 3, A 4, A 5And A 6Be independently from each other separately by
Figure FDA00002251869700026
Figure FDA00002251869700028
The ring texture of the group that forms.
5. compound according to claim 1 is characterized in that, Z 1, Z 3, Z 4And Z 5Identical or different, be selected from independently of one another by-CO-O-,-CF 2O-,-CH 2O-,-OCH 2-,-CH 2CH 2-,-CF=CF-,-CH=CH-,-(CH 2) 4-,-C 2F 4-,-(CF 2) 4-,-OCF 2CF 2O-,-CF=CFCF 2O-,-group that C ≡ C-and carbon-carbon single bond form.
6. compound according to claim 5 is characterized in that, Z 1, Z 3, Z 4And Z 5Be independently from each other separately by-CO-O-,-CF 2O-,-CH 2O-,-CH 2CH 2-,-CF=CF-,-CH=CH-,-C 2F 4-,-(CH 2) 4-,-(CF 2) 4-,-OCF 2CF 2O-,-CF=CFCF 2O-,-group that C ≡ C-and carbon-carbon single bond form.
7. compound according to claim 6 is characterized in that, Z 1, Z 3, Z 4And Z 5Be independently from each other separately by-CF 2O-,-CH 2O-,-CH 2CH 2-,-CF=CF-,-CH=CH-,-CF=CFCF 2O-,-group that C ≡ C-and carbon-carbon single bond form.
8. compound according to claim 1 is characterized in that, a is 0 or 1; B+c+d≤3.
9. described compound is characterized in that according to claim 1-8, and described compound is selected from the group that is comprised of following compound:
Figure FDA00002251869700031
Figure FDA00002251869700041
Figure FDA00002251869700051
And
Figure FDA00002251869700052
Wherein,
R 1And R 2Identical or different, be selected from independently of one another by H ,-F ,-Cl ,-halo or the alkyl of unsubstituted straight or branched or the group that alkoxyl group forms of CN and 1-7 carbon atom, wherein, at described R 1With described R 2In at least one-CH 2-can by-O-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure FDA00002251869700053
Or-CO-O-is alternative, and its prerequisite is that heteroatoms directly is not connected to each other.
10. the liquid-crystal composition that comprises one of according to claim 1 at least a-9 described compounds.
11. liquid-crystal composition according to claim 10, it is characterized in that, described liquid-crystal composition comprises a kind of to five kinds of described liquid crystalline cpds one of according to claim 1-10, preferably, described liquid crystal compound comprises two kinds to four kinds one of according to claim 1-10 described liquid crystalline cpds.
12. liquid-crystal composition according to claim 10 is characterized in that, described liquid-crystal composition also comprises the liquid crystalline cpd of at least a general formula II:
Figure FDA00002251869700061
Wherein,
R 3And R 4Identical or different, be selected from independently of one another by-H ,-F ,-Cl ,-CN ,-NCS ,-SCN ,-OCN ,-NCO ,-OCH=CF 2, a 1-20 carbon atom halo or not halo or the not thiazolinyl of the straight or branched of halo or the group that alkene oxygen base forms of the alkyl of the straight or branched of halo or alkoxyl group and 2-20 carbon atom, wherein, at described R 3With described R 4In at least one-CH 2-can by-O-,-S-,-SiH 2-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,
Figure FDA00002251869700062
-CO-O-or-O-CO-substitutes, its prerequisite is that heteroatoms directly is not connected to each other;
B 1, B 2And B 3And B 4Identical or different, be selected from independently of one another by
Figure FDA00002251869700063
Figure FDA00002251869700064
2,3-, two fluoro-Isosorbide-5-Nitrae-phenylenes, 3-fluoro-Isosorbide-5-Nitrae-phenylene, 2-chloro-3-fluoro-1,4-phenylene, 2-fluoro-Isosorbide-5-Nitrae-phenylene, 2,6-two fluoro-1,4-phenylene, 3,5-two fluoro-Isosorbide-5-Nitrae-phenylenes, indane-2,5-two bases, piperidines-Isosorbide-5-Nitrae-two base, naphthalene-2,6-two bases, perhydronaphthalene-2,6-two bases and 1,2,3,4-naphthane-2, the group that 6-two bases form, wherein said
Figure FDA00002251869700065
In one or two non-conterminous-CH 2-can by-O-or-S-substitutes, and is described
Figure FDA00002251869700066
Upper one or more H can be replaced by F independently of one another, and is described
Figure FDA00002251869700067
In one or two non-conterminous-CH-can be substituted by N, described
Figure FDA00002251869700068
In one or two non-conterminous-CH 2-can be substituted by O, described Upper one or more H can be replaced by F independently of one another;
Y 1, Y 2And Y 3Identical or different, be selected from independently of one another by-OCO-,-CO-O-,-CF 2O-,-CH 2O-,-OCH 2-,-CH 2CH 2-,-CF 2CH 2-,-CF=CF-,-CH=CH-,-CH (CH 3) CH 2-,-CH 2CH (CH 3)-,-(CH 2) 3O-,-O (CH 2) 3-,-COS-,-SCO-,-CH=CF-,-C 2F 4-,-(CH 2) 4-,-C 4F 8-,-OCF 2CF 2O-,-CF 2CF 2CF 2O-,-CH 2CH 2CF 2O-,-CH 2CF 2OCH 2-,-CH=CHCF 2O-,-CF 2OCH=CH-,-CF 2OCF=CH-,-CF 2OCH=CF-,-CF=CFCF 2O-,-CF 2OCF=CF-,-CH=CHCH 2CH 2-,-C 2H 4OCH 2-,-CH 2CH=CHCH 2-,-OCH 2CH 2CH 2-,-CF=CF-CF=CF-,-C ≡ C-CF=CF-,-C ≡ C-CF=CF-C ≡ C-,-CF=CF-C ≡ C-CF=CF-,-C ≡ C-CF 2O-,-group that C ≡ C-and singly-bound form, wherein, at described Y 1And Y 2In any one-CH 2-can be by-SiH 2-substitute;
M, n and p are identical or different, are 0,1 or 2 independently of one another.
13. liquid-crystal composition according to claim 12 is characterized in that, the liquid crystalline cpd of described logical formula II is selected from the group that is comprised of following compound:
Figure FDA000022518697000610
Figure FDA00002251869700071
Figure FDA00002251869700081
And
Figure FDA00002251869700091
14. described liquid-crystal composition is characterized in that according to claim 10-13, described liquid-crystal composition comprises and accounts for the described compound of described liquid-crystal composition gross weight 5-50% formula I; Account for the described compound of described liquid-crystal composition gross weight 50-95% general formula II, preferably, described liquid-crystal composition comprises that accounting for described liquid-crystal composition gross weight 10-30% leads to the described compound of formula I; Account for the logical described compound of formula II of described liquid-crystal composition gross weight 70-90%.
15. a liquid-crystal display, described liquid-crystal display comprise according to claim 10 one of-14 described liquid-crystal compositions.
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