CN102633610A - 'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof - Google Patents

'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof Download PDF

Info

Publication number
CN102633610A
CN102633610A CN2011104592315A CN201110459231A CN102633610A CN 102633610 A CN102633610 A CN 102633610A CN 2011104592315 A CN2011104592315 A CN 2011104592315A CN 201110459231 A CN201110459231 A CN 201110459231A CN 102633610 A CN102633610 A CN 102633610A
Authority
CN
China
Prior art keywords
spiral shell
fluorenes
methyl
reaction
dimethyl
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN2011104592315A
Other languages
Chinese (zh)
Other versions
CN102633610B (en
Inventor
肖海波
殷鸿尧
张晓瑛
丁磊
郭松魁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Normal University
University of Shanghai for Science and Technology
Original Assignee
Shanghai Normal University
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.)
Filing date
Publication date
Application filed by Shanghai Normal University filed Critical Shanghai Normal University
Priority to CN201110459231.5A priority Critical patent/CN102633610B/en
Publication of CN102633610A publication Critical patent/CN102633610A/en
Application granted granted Critical
Publication of CN102633610B publication Critical patent/CN102633610B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention relates to a 'vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on a fluorene loop. A structural formula of the compound is (I) shown in the source text, wherein R1 and R2 in the formula can be various electron withdrawing and donating groups such as alkyl, substituted aryl, substituted heterocyclic radical, substituted alkylene, substituted amino, chlorine, bromine, iodine and the like, and the R1 and R2 are different. 4,4'-dimethyl diphenyl which is cheap and easy to obtain is used as a raw material to be bromized and reacted with fluorenone or 2,7-substituted fluorenone to covert the methyl on the fluorine loop into various fluctional groups and the like to obtain the compound (I). The 'vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on the fluorene loop is low in cost, simple in synthetic route, high in yield and easy in industrial production, has special spiral conjugation effect, high dissolubility and high heat stability, and is widely applicable to fields of organic luminous display, organic nonlinear materials, fluorescent probes and the like.

Description

One type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl on the fluorenes ring changes
Technical field
The present invention relates to one type of spiral shell two fluorene compound, specifically, is one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl on the fluorenes ring changes.
Background technology
9,9 '-spiral shell, two fluorenes have just been synthesized as far back as nineteen thirty Clarkson and Gomberg etc.Salbeck in 1997 etc. are used in the electroluminescent material aspect with spiral shell two fluorenes, thereby have caused spiral shell two fluorenes extensively carrying out at the organic photoelectric functional material area research.Because spiral shell two fluorenes are three-dimensional orthogonal intersection space structure, can avoid chromophoric tightly packed in the molecule, improve the thermostability and the solubility property of material; And pass through sp 3The spiral shell carbon atom of hydridization can be realized the control of molecular conjugation length again or produce special spiral shell conjugative effect.In recent years, spiral shell two fluorenes have become " star molecule " of field of photovoltaic materials, and its research field extends to fields such as organic solar batteries, organic non-linear optical properties and fluorescent probe from initial electroluminescent.
The classical way of at present synthetic spiral shell two fluorenes generally is to utilize the Grignard reagent of 2-bromo biphenyl and Fluorenone reaction to obtain, and the 2-bromo biphenyl generally is to utilize adjacent dibromobenzene to make through linked reaction, costs an arm and a leg.During spiral shell two is fluorene structured 2,2 ', 7,7 ' position has good reactive behavior; Through substitution reaction 2,2 '-two R-9 that are easy to get, 9 '-spiral shell two fluorenes (R representes substituting group) or 2,2 '-two R-7; 7 '-two R '-9,9 '-spiral shell two fluorenes (R, R ' expression substituting group can be identical or different).And " on-down " and asymmetrical type spiral shell two fluorene compounds 2,7-two R-2 ', 7 '-two R '-9,9 '-spiral shell two fluorenes or 2-R-2 '-R '-9,9 '-spiral shell two fluorenes (R, R ' expression substituting group, and inequality), because the difficulty on synthetic, bibliographical information is less.
The present invention from cheaply be easy to get 4,4 '-dimethyl diphenyl sets out, and obtained 2,7-dimethyl--2 ', 7 '-two X-9,9 '-(X can be H to spiral shell two fluorenes, can be the R in the claim 1 1Or R 2But be not methyl).Because 2,7 methyl can change brooethyl into again, aldehyde radical, various functional groups such as carboxyl have widened the synthesis path of " on-down " asymmetrical type spiral shell two fluorene compounds, and have prepared a large amount of " on-down " asymmetrical type spiral shell two fluorene compounds thus.
Spiral shell two fluorene compounds are used widely in the organic electroluminescent field, have formed suitable article and patent.Bibliographical information is arranged the different fluorenes rings of spiral shell two fluorenes connect respectively hole mobile material and electron transport material " on-down " asymmetrical type spiral shell two fluorene compounds (referring to Tobat P.I.Saragi etc., Chem.Rev.2007,107,1011-1065).Yet, spiral shell two fluorene compounds are applied to organic non-linear optical properties and the fluorescent probe aspect but rarely has report.
Summary of the invention
The object of the invention is to propose one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl changes on the fluorenes ring.
Another object of the present invention is to propose the preparation method of one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl changes on the fluorenes ring.
Another purpose of the present invention is to propose the application of the luminous or laser diode device material of the conduct of one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl changes on the fluorenes ring.
A purpose more of the present invention is to propose the application as second order or third-order non-linear material of one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl changes on the fluorenes ring.
Of the present invention also have a purpose, is to propose the application of the biological or chemiluminescence probe of the conduct of one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl changes on the fluorenes ring.
For realizing above-mentioned purpose, technical solution of the present invention is:
One type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl on the fluorenes ring changes has following general formula (I):
Figure BDA0000128165100000021
In the formula:
R 1, R 2Be separately:
(1) C 1-C 5Branched-chain alkyl or straight chained alkyl, Cl, Br, I, NH 2Or
Figure BDA0000128165100000022
Wherein m, n are integer, the *-CH of 0-8 2Br, *-CHO, *-CN or-Ar, wherein Ar can be selected from structure unit or the unitary verivate of structure:
Figure BDA0000128165100000031
(2) or the structure unit:
Figure BDA0000128165100000032
Wherein:
R 3, R 4, R 5, R 6For hydrogen or have straight chain, side chain or cyclic alkyl or the oxyalkyl chain of 1-22 carbon atom, and can be identical or different;
(3) or the structure unit:
Figure BDA0000128165100000033
Wherein:
R 7For
Figure BDA0000128165100000041
*-OR 10Or
Figure BDA0000128165100000042
Wherein:
R 8, R 9For hydrogen, contain 1-10 carbon atom branched-chain or straight-chain alkyl, contain the aryl of 6-15 carbon atom, can be identical or different;
R 10For hydrogen or have straight chain, side chain or cyclic alkyl or the oxyalkyl chain of 1-22 carbon atom;
R 11Be CH 2, O, S or NR ', R ' is the side chain or the straight chained alkyl of hydrogen, a 1-12 carbon.
(4) or structural unit:
Figure BDA0000128165100000043
Wherein:
R 12, R 13Be H, *-NO 2, *-CN, *-COOH,
Figure BDA0000128165100000044
Figure BDA0000128165100000045
Wherein R ' be hydrogen, a 1-12 carbon side chain or straight chained alkyl,
Figure BDA0000128165100000046
R wherein " be the side chain or the straight chained alkyl of hydrogen, a 1-12 carbon, R 12With R 13Can be identical or different, collateral condition is that both are not H simultaneously;
(5) or structural unit:
Figure BDA0000128165100000047
R 14, R 15For hydrogen or have straight chained alkyl, branched-chain alkyl or cyclic alkyl, oxyalkyl chain or the aryl of 1-22 carbon atom, R 14With R 15Can be identical or different, M is S, O, CH 2, or NR " ', wherein R " ' be the side chain or the straight chained alkyl of hydrogen, a 1-12 carbon;
(6) or structural unit:
Figure BDA0000128165100000051
R 16, R 17For hydrogen or have straight chained alkyl, branched-chain alkyl or cyclic alkyl, oxyalkyl chain or the aryl of 1-22 carbon atom, R 16With R 17Can be identical or different.
The preparation method of one type of " on-down " asymmetrical type spiral shell two fluorene compound that come from that methyl on the fluorenes ring changes is characterized in that may further comprise the steps:
(1), produces 4,4 '-dimethyl--2-bromo biphenyl
Figure BDA0000128165100000052
Successively with 4,4 '-dimethyl diphenyl, a small amount of iodine and exsiccant methylene dichloride join in single neck flask, in ice-water bath, stir 30min after, with the slow dropping liquid bromine of constant pressure funnel; After being added dropwise to complete, continue reaction 5h; Stopped reaction adds the saturated sodium sulfite aqueous solution in flask, be stirred to brown taking off; Separatory, collected organic layer, water layer merge organic layer with dichloromethane extraction 3 times, use anhydrous sodium sulfate drying; Suction filtration, removing desolvates promptly gets 4,4 '-dimethyl--2-bromo biphenyl;
(2), produce 2,7-dimethyl--2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X can be H, can be the R in (I) formula 1Or R 2, but be not methyl.
Figure BDA0000128165100000053
Under the nitrogen protection, 4,4 '-dimethyl--2-bromo biphenyl is in anhydrous tetrahydro furan, and the following and exsiccant magnesium rod reaction 0.5-1h of catalysis of iodine processes Grignard reagent; The Grignard reagent for preparing slowly is added drop-wise to is equipped with 2, in the anhydrous tetrahydrofuran solution of 7-two X-9-Fluorenones, backflow 14-20h obtains corresponding fluorenol; Remove the THF in the reaction soln, add acetate and hydrochloric acid, backflow 3-6h has solid to separate out, and is cooled to room temperature, filters, and gets thick product, uses normal hexane and absolute ethanol washing respectively, promptly obtains 2,7-dimethyl--2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes; (3), produce 2,7-dibrominated methyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X can be H, can be the R in (I) formula 1Or R 2, but be not methyl.
Under nitrogen protection, in the exsiccant three-necked flask that is connected to reflux condensing tube, add 2 successively, 7-dimethyl--2 '; 7 '-two X-9,9 '-spiral shell, two fluorenes, N-bromo-succinimide (NBS) and BPO (BP0); The exsiccant tetracol phenixin that reinjects, back flow reaction 12-18h; Stopped reaction is cooled to room temperature, in reaction solution, adds silica gel, and column chromatography gets 2,7-dibrominated methyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(4), produce 2,7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X can be H, can be the R in (I) formula 1Or R 2, but be not methyl.
Figure BDA0000128165100000062
Under nitrogen protection, in the single neck flask that is connected to reflux condensing tube, add 2 successively, 7-dibrominated methyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, sodium hydrogencarbonate, an amount of methyl-sulphoxide that reinjects is at 110 ℃ of reaction 12-18h; Stopped reaction is cooled to room temperature, adds frozen water, separates out a large amount of solids, filters, and the gained solid is carried out column chromatography, promptly gets 2,7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(5), produce 2,7-two Y-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X can be H, can be the R in (I) formula 1Or R 2, but be not methyl; Y can be *-CN,
Figure BDA0000128165100000063
Deng the R in (I) formula 1Or R 2Group wherein comprises following preparation method:
Figure BDA0000128165100000064
(a), when Y is *-CN, preparation method is:
Under nitrogen protection, in the single neck flask that is connected to reflux condensing tube, add 2 successively, 7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, oxammonium hydrochloride, the new N-Methyl pyrrolidone (NMP) that steams that reinjects is at 115 ℃ of reaction 12-20h.Stopped reaction is cooled to room temperature, adds frozen water, separates out a large amount of solids, filters, and the gained solid is carried out column chromatography, promptly gets 2,7-dinitrile-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(b), when Y is
Figure BDA0000128165100000071
, preparation method is:
Successively with 2; 7-diformyl-2 '; 7 '-two X-9; 9 '-spiral shell, two fluorenes,
Figure BDA0000128165100000072
toluene, alkaline aluminium sesquioxide join in single neck flask back flow reaction 12-24h; After reaction finished, toluene was removed in underpressure distillation; Remaining solid is carried out column chromatography, promptly get 2,7-disubstituted olefin base-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(c), when Y is
Figure BDA0000128165100000073
, preparation method is:
Take by weighing 2 successively, 7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, O-Phenylene Diamine, or ortho-aminophenol, or adjacent mercaptoaniline, or derivatives thereof and brometo de amonio inject an amount of methyl alcohol in round-bottomed flask, at room temperature stirring reaction 30-50h; Stopped reaction removes and to desolvate, water successively again, and ETHYLE ACETATE, sherwood oil mixed solvent and washing with alcohol promptly get 2,7-two nitrogen heterocycles-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes.
The preparation method of the present invention relates to one type " on-down " asymmetrical type spiral shell two fluorene compound that comes from that methyl changes on the fluorenes ring can also adopt following technical measures to come further to realize.
Aforesaid method, wherein in the step (1), 4, the mol ratio of 4 '-dimethyl diphenyl and liquid bromine is 1: 1.2, temperature of reaction is 0～5 ℃.
Aforesaid method, wherein in the step (2), 4,4 '-dimethyl--2-bromo biphenyl, magnesium rod and 2, the mol ratio of 7-two X-9-Fluorenones is 1: 1.2: 0.8; During the final step dehydration cyclization, need original solvents tetrahydrofurane is removed, to improve productive rate; The concentrated hydrochloric acid massfraction that is added is 37%, and itself and glacial acetic acid volume ratio are 1: 15.
Aforesaid method, wherein in the step (3), 2,7-dimethyl--2 ', 7 '-two X-9, the mol ratio of 9 '-spiral shell, two fluorenes, N-bromo-succinimide, BPO is 1: 2.2: 0.2.
Aforesaid method, wherein in the step (4), 2,7-dibrominated methyl-2 ', 7 '-two X-9, the mol ratio of 9 '-spiral shell, two fluorenes and sodium hydrogencarbonate is 1: 30.
Aforesaid method, wherein in the step (5a), 2,7-diformyl-2 ', 7 '-two X-9, the mol ratio of 9 '-spiral shell, two fluorenes and oxammonium hydrochloride is 1: 20.
Aforesaid method; Wherein in the step (5b) 2; 7-diformyl-2 '; 7 '-two X-9,9 '-spiral shell, two fluorenes, are 1: 10: 40 with the mol ratio of alkaline aluminium sesquioxide.
Aforesaid method, wherein in the step (5c), 2,7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, O-Phenylene Diamine, or ortho-aminophenol, or adjacent mercaptoaniline, the mol ratio of or derivatives thereof and brometo de amonio is 1: 2: 10.
The application of the luminous or laser diode device material of a kind of conduct of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes; Wherein the structure of LED device is transparent anode/hole mobile material/luminescent material/electronics injecting material/negative electrode, wherein adopts " on-down " asymmetrical type spiral shell two fluorene compounds come from that methyl changes on the fluorenes ring as hole mobile material.
The application of the luminous or laser diode device material of a kind of conduct of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes; Wherein the structure of LED device is transparent anode/hole mobile material/luminescent material/electronics injecting material/negative electrode, wherein adopts " on-down " asymmetrical type spiral shell two fluorene compounds come from that methyl changes on fluorenes ring material of main part as luminescent material or white light and phosphorescence.
The application of the luminous or laser diode device material of a kind of conduct of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes; Wherein the structure of LED device is transparent anode/hole mobile material/luminescent material/electronics injecting material/negative electrode, wherein adopts " on-down " asymmetrical type spiral shell two fluorene compounds come from that methyl changes on the fluorenes ring as electron transport material.
A kind of application of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes as second order or third-order non-linear material.
The application of the biological or chemiluminescence probe of a kind of conduct of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes.
Main points of the present invention are: with 4,4 '-dimethyl diphenyl is a raw material, through bromination, grignard reaction, with Fluorenone or 2; 7-two replaces Fluorenone and is dehydrated into reactions such as ring, obtains 2,7-dimethyl--2 '; 7 '-two X-9,9 '-(X can be H to spiral shell two fluorenes, can be the R in the claim 1 1Or R 2, but be not methyl).By 2,7-dimethyl--2 ', 7 '-two X-9,9 '-spiral shell two fluorenes, the functional group through methyl on the fluorenes ring transforms can make compound (I), and reaction formula is following:
Figure BDA0000128165100000091
Figure BDA0000128165100000092
In the formula Y can be *-CN,
Figure BDA0000128165100000093
Figure BDA0000128165100000094
Etc. the R described in the claim 1 1Or R 2Group.
Compared with prior art, beneficial effect of the present invention is:
(1) adopt cheap 4,4 '-dimethyl--2-bromo biphenyl substitute present 9,9 '-spiral shell two fluorenes prepare the expensive 2-bromo biphenyl that generally uses in the process.4,4 '-dimethyl--2-bromo biphenyl is to be that raw material makes through coupling and bromination reaction with the para-bromo toluene.
(2) through methyl being changed into various functional groups such as brooethyl, aldehyde radical, carboxyl, widened the synthesis path of " on-down " asymmetrical type spiral shell two fluorene compounds.
(3) will " on-down " asymmetrical type spiral shell two fluorene compounds as organic non-linear optical properties.
(4) will " on-down " asymmetrical type spiral shell two fluorene compounds as pH probe and fluorescent probe.
The invention has the advantages that:
1. utilize be simple and easy to raw material, the reaction through common has prepared " on-down " asymmetrical type spiral shell two fluorene compounds.That this method has is with low cost, synthetic route is simple, productive rate is high and characteristics such as easy suitability for industrialized production.
2. this compound method provides a kind of important approach and thinking for synthetic " on-down " asymmetrical type spiral shell two fluorene compounds.
3. institute's synthetic " on-down " asymmetrical type spiral shell two fluorene compounds have special electronic structure and photoelectric properties; It is the important materials in organic photoelectrical material field; Will " on-down " asymmetrical type spiral shell two fluorene compounds as organic non-linear optical properties; PH probe and fluorescent probe etc. have been widened the range of application of spiral shell two fluorene compounds.
4. institute's synthetic " on-down " asymmetrical type spiral shell two fluorene compounds have special spiral shell conjugative effect, good solubility and light transmission, higher thermostability.
Description of drawings
Fig. 1 is 2,7-dimethyl--2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes 1H NMR;
Fig. 2 is 2,7-dibrominated methyl-2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes 1H NMR;
Fig. 3 is 2,7-diformyl-2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes 1H NMR;
Fig. 4 is 2,7-dinitrile-2 ', 7 '-two carbazoles-9,9 '-spiral shell, two fluorenes 1H NMR;
Fig. 5 is 2,7-dinitrile-2 ', 7 '-two carbazoles-9, the extinction spectrum figure of 9 '-spiral shell, two fluorenes;
Fig. 6 is 2,7-dinitrile-2 ', 7 '-two carbazoles-9, the fluorescence spectrum figure of 9 '-spiral shell, two fluorenes.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is illustrated further.
Embodiment 1
2,7-diformyl-2 ', 7 '-two bromo-9, the preparation method of 9 '-spiral shell, two fluorenes may further comprise the steps:
(1) 4, the preparation of 4 '-dimethyl diphenyl
Figure BDA0000128165100000101
Adopt cheaply be easy to get 4; 4 '-dimethyl diphenyl is a raw material; Under nitrogen protection; Take by weighing 3g (125mmol) exsiccant magnesium powder successively, 0.2g (1.2mmol) iron trichloride takes by weighing 11g (64.3mmol) para-bromo toluene in 50ml exsiccant constant pressure funnel again in 100ml exsiccant three-necked flask.In three-necked flask, inject anhydrous 60ml THF, at room temperature vigorous stirring.The para-bromo toluene of earlier quick Dropwise 5 % after reaction causes, slowly drips again.After being added dropwise to complete, continuation reaction 30min, stopped reaction is cooled to room temperature, and suction filtration gets black filtrating, removes and desolvates, and gets the black mashed prod.Add 50ml methylene dichloride and 30ml water successively, a large amount of flosss appear in high vibration in the solution.In solution, slowly drip dilute hydrochloric acid solution and constantly concussion, disappear until floss.Separatory, collected organic layer, water layer merge organic layer with dichloromethane extraction 3 times (10ml * 3), add an amount of anhydrous sodium sulfate drying.Cross and filter yellow liquid, remove desolvate yellow mashed prod, add a small amount of absolute ethyl alcohol, separate out a large amount of water white transparency needle-like solids immediately, suction filtration, 3.6g 4,4-dimethyl diphenyl, productive rate 61.3%.Surveying its fusing point is 120～122 ℃.
(2) 4,4 '-dimethyl--2-bromo biphenyl synthetic
Take by weighing 4 of 1.2g (6.6mmol), 4 '-dimethyl diphenyl injects 8ml exsiccant methylene dichloride in the single neck flask of 50ml; Add a small amount of iodine; After in ice-water bath, stirring 30min, 0.41ml (7.92mmol) liquid bromine is injected in the 50ml constant pressure funnel, slowly drips.After being added dropwise to complete, continue reaction 3h.Stopped reaction adds a small amount of saturated sodium sulfite aqueous solution in flask, be stirred to brown taking off.Use the separating funnel separatory, collected organic layer, water layer is with washed with dichloromethane 3 times (5ml * 3).In organic layer, add a spot of anhydrous sodium sulfate drying.Suction filtration, the exsiccant yellow solution, remove after desolvating the 1.61g brown oil, promptly 4,4 '-dimethyl--2-bromo biphenyl, productive rate 94%.
(3) 2,7-dimethyl--2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes synthetic
Figure BDA0000128165100000112
Under the nitrogen protection, in the 100ml three-necked flask, add 4 of 1.70g (6.5mmol) successively, 4 '-dimethyl--2-bromo biphenyl, a small amount of iodine, 0.19g (7.9mmol) exsiccant magnesium rod, the 10ml anhydrous tetrahydro furan reinjects.Oil bath refluxes, and after reaction caused, solution colour became faint yellowly by brown, and viscosity obviously increases.After treating that most of magnesium powder disappears, Grignard reagent slowly is added drop-wise to is dissolved with 1.7g (5.0mmol) 2, in the tetrahydrofuran solution of 7-two bromo-9-Fluorenones, continue back flow reaction 14h.Stopped reaction is removed the solvent in the flask, gets faint yellow mashed prod, in flask, adds 8ml glacial acetic acid and 0.6ml concentrated hydrochloric acid (10mol/L) successively, continues back flow reaction 4h.Stopped reaction, solution is cooled to room temperature, separates out a large amount of solids, suction filtration gets pale solid, with washing with alcohol 2 times, white solid 1.5g, productive rate 46.3%. 1H?NMR(400MHz，CDCl 3，δppm)：2.2(s，6H)，6.5(s，2H)，6.8(d，2H)，7.2(d，2H)，7.5(d，2H)，7.7(d，4H)
(4) 2,7-dibrominated methyl-2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes synthetic
Under nitrogen protection, in the exsiccant 100ml three-necked flask that is connected to reflux condensing tube, add 2g (4mmol) 2 successively, 7-dimethyl--2 '; 7 '-two bromo-9,9 '-spiral shell, two fluorenes, 1.5g (8.43mmol) NBS; 0.20g (0.82mmol) BPO (BP0), 10mlCCl reinjects 4, back flow reaction 12h.Behind the stopped reaction, be cooled to room temperature, in reaction solution, add an amount of silica gel, carry out column chromatography (developping agent is a sherwood oil), white solid 1.7g, promptly 2,7-dibrominated methyl-2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes, productive rate 65%.A large amount of solids, suction filtration gets pale solid, with washing with alcohol 2 times, must white solid 1.5g, productive rate 46.3%. 1H?NMR(400MHz，CDCl 3，δppm)：4.4(s，4H)，6.7(s，2H)，6.8(d，2H)，7.4(d，2H)，7.5(d，2H)，7.7(d，2H)，7.8(d，2H)
(5) 2,7-diformyls-2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes synthetic
Under nitrogen protection, in the single neck flask of the exsiccant 20ml that is connected to reflux condensing tube, add 0.4g (0.606mmol) 2 successively, 7-dibrominated methyl-2 '; 7 '-two bromo-9,9 '-spiral shell, two fluorenes, 1.5g (18mmol) sodium hydrogencarbonate and magneton; The 5mlDMS0 that reinjects is at 110 ℃ of reaction 12h down.Behind the stopped reaction, be cooled to room temperature, add about 10ml frozen water, separate out a large amount of solids, cross and filter white solid.With white solid carry out column chromatography (developping agent is a sherwood oil: ETHYLE ACETATE=10: 1), faint yellow solid 0.131g, promptly 2,7-diformyl-2 ', 7 '-two bromo-9,9 '-spiral shell, two fluorenes, productive rate 41%. 1H?NMR(400MHz，CDCl 3，δppm)：6.9(s，2H)，7.3(s，2H)，7.6(d，2H)，7.7(d，2H)，8.0(d，2H)，8.1(d，2H)，9.9(s，2H)
Embodiment 2
2,7-dinitrile-2 ', 7 '-two carbazoles-9, the preparation of 9 '-spiral shell, two fluorenes may further comprise the steps:
Figure BDA0000128165100000122
Under nitrogen protection; In the single neck flask of the exsiccant 10ml that is connected to reflux condensing tube, add 10mg (0.014mmol) 2 successively, 7-diformyl-2 ', 7 '-two carbazoles-9; 9 '-spiral shell, two fluorenes; 20mg (0.29mmol) oxammonium hydrochloride, the new N-Methyl pyrrolidone (NMP) that steams of the 2ml that reinjects reacts 12h down at 115 ℃.Behind the stopped reaction, be cooled to room temperature, add about 5ml frozen water, separate out a large amount of solids; Cross and filter yellow solid, column chromatography (developping agent is a sherwood oil: ETHYLE ACETATE=15: 1), faint yellow solid 8mg, promptly 2; 7-dinitrile-2 ', 7 '-two carbazoles-9,9 '-spiral shell, two fluorenes, productive rate 80%. 1H?NMR(400MHz，CDCl 3，δppm)：6.8(s，2H)，7.1(d，4H)，7.2(t，4H)，7.3(t，4H)，7.5(s，2H)，7.8(d，2H)，7.9(d，2H)，8.1(d，4H)，8.3(d，2H)，8.5(d，2H)
Embodiment 3
The photoluminescence spectra measuring method of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes (with 2,7-dinitrile-2 ', 7 '-two carbazoles-9,9 '-spiral shell, two fluorenes are example)
Product is mixed with 1 * 10 in the solvent of opposed polarity -5The solution of M carries out absorption spectrum and emission spectrometry at ultraviolet-visual spectrometer and XRF respectively.Uv absorption spectrum is seen accompanying drawing 5, and fluorescence emission spectrum is seen accompanying drawing 6.Can see obviously that from Fig. 5 the absorption spectrum of compound ends in 370nm about 325nm, meet the practicability requirement of the nonlinear material transparency fully.Can see obviously that from Fig. 6 the emission maximum spectrum of compound is about 410nm, and emission peak increases and red shift with solvent polarity.This explanation during excited state intramolecular electric charge tangible transfer has taken place, the spiral shell conjugative effect has obtained sufficient embodiment in " on-down " asymmetrical type spiral shell two fluorene compounds.
Embodiment 4
The testing method of " on-down " the asymmetrical type spiral shell two fluorene compound second nonlinear performances that come from that methyl on the fluorenes ring changes (with 2,7-dinitrile-2 ', 7 '-two carbazyls-9,9 '-spiral shell, two fluorenes are example)
Utilize to dissolve and to cause the variable color method, second eyeball (37.5D) and the toluene (2.4D) bigger with difference in dielectric constant are solvent, record that substitution is molten after the related data causes the variable color equation, calculate 2,7-dinitrile-2 ', 7 '-two carbazoles-9,9, the β of-spiral shell two fluorenes CTμ gBe 1574.And 2,7-dinitrile-2,, 7 ,-two carbazyls-9,9, the fusing point of-spiral shell two fluorenes is greater than 250 ℃.This shows; " on-down " asymmetrical type spiral shell two fluorene compounds with D-π-A structure; Have bigger second-order nonlinear polarizability, and light transmission and thermostability are all very good, are expected to solve present second nonlinear material " non-linear-light transmission-thermostability " contradiction.Can predict, this type material is more and more wider in the application meeting in non-linear field.
Above embodiment only supplies to explain the present invention's usefulness, but not limitation of the present invention, the technician in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.

Claims (10)

1. " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes have following general formula (I):
Figure FDA0000128165090000011
In the formula:
R 1, R 2Be separately:
(1) C 1-C 5Branched-chain alkyl or straight chained alkyl, Cl, Br, I, NH 2Or
Figure FDA0000128165090000012
Wherein m, n are the integer of 0-8, perhaps *-CH 2Br, *-CHO, *-CN or-Ar, wherein Ar is selected from structure unit or the unitary verivate of structure:
Figure FDA0000128165090000013
(2) or the structure unit:
Wherein:
R 3, R 4, R 5, R 6For hydrogen or have straight chain, side chain or cyclic alkyl or the alkoxyl group of 1-22 carbon atom;
(3) or the structure unit:
Figure FDA0000128165090000022
Wherein:
R 7For
Figure FDA0000128165090000023
*-OR 10Or
Figure FDA0000128165090000024
Wherein:
R 8, R 9For hydrogen, contain 1-10 carbon atom branched-chain or straight-chain alkyl, contain the aryl of 6-15 carbon atom, can be identical or different;
R 10For hydrogen or have straight chain, side chain or cyclic alkyl or the oxyalkyl chain of 1-22 carbon atom;
R 11Be CH 2, O, S or NR ', R ' is the side chain or the straight chained alkyl of hydrogen, a 1-12 carbon;
(4) or structural unit:
Figure FDA0000128165090000025
Wherein:
R 12, R 13Be H, *-NO 2, *-CN, *-COOH,
Figure FDA0000128165090000026
Figure FDA0000128165090000027
Wherein R ' be hydrogen, a 1-12 carbon side chain or straight chained alkyl,
Figure FDA0000128165090000028
R wherein " be the side chain or the straight chained alkyl of hydrogen, a 1-12 carbon, R 12With R 13Can be identical or different, collateral condition is that both are not H simultaneously;
(5) or structural unit:
R 14, R 15For hydrogen or have straight chained alkyl, branched-chain alkyl or cyclic alkyl, oxyalkyl chain or the aryl of 1-22 carbon atom, R 14With R 15Can be identical or different, M is S, O, CH 2, or NR " ', wherein R " ' be the side chain or the straight chained alkyl of hydrogen, a 1-12 carbon;
(6) or structural unit:
Figure FDA0000128165090000032
R 16, R 17For hydrogen or have straight chained alkyl, branched-chain alkyl or cyclic alkyl, oxyalkyl chain or the aryl of 1-22 carbon atom, R 16With R 17Can be identical or different.
2. the preparation method of said " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes of claim 1 is characterized in that may further comprise the steps:
(1), produces 4,4 '-dimethyl--2-bromo biphenyl
With 4,4 '-dimethyl diphenyl, iodine and exsiccant methylene dichloride mix successively, after in ice-water bath, stirring, with the slow dropping liquid bromine of constant voltage; After being added dropwise to complete, continue reaction 4～8h; Stopped reaction adds the saturated sodium sulfite aqueous solution in flask, be stirred to brown taking off; Separatory, collected organic layer, water layer merge organic layer with dichloromethane extraction 2～4 times, dry back suction filtration, removing desolvates promptly gets 4,4 '-dimethyl--2-bromo biphenyl;
(2), produce 2,7-dimethyl--2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X is H or (I) R in the formula 1Or R 2, but be not methyl;
Figure FDA0000128165090000041
Under the nitrogen protection, 4,4 '-dimethyl--2-bromo biphenyl is in anhydrous tetrahydro furan, and the following and exsiccant reactive magnesium 0.5-1h of catalysis of iodine processes Grignard reagent; The Grignard reagent for preparing slowly is added drop-wise to is equipped with 2, in the anhydrous tetrahydrofuran solution of 7-two X-9-Fluorenones, backflow 14-20h obtains corresponding fluorenol; Remove the THF in the reaction soln, add acetate and hydrochloric acid, backflow 3-6h has solid to separate out, and is cooled to room temperature, and suction filtration gets thick product, uses normal hexane and absolute ethanol washing respectively, promptly obtains 2,7-dimethyl--2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(3), produce 2,7-dibrominated methyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X is H or (I) R in the formula 1Or R 2, but be not methyl;
Figure FDA0000128165090000042
Under nitrogen protection, in the exsiccant three-necked flask that is connected with reflux condensing tube, add 2 successively, 7-dimethyl--2 ', 7;-two X-9,9 ,-spiral shell two fluorenes; N-bromo-succinimide and BPO, the exsiccant tetracol phenixin that reinjects, back flow reaction 12-18h; Stopped reaction is cooled to room temperature, in reaction solution, adds silica gel, and column chromatography gets 2,7-dibrominated methyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(4), produce 2,7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X can be H, can be the R in (I) formula 1Or R 2, but be not methyl;
Figure FDA0000128165090000043
Under nitrogen protection, in the single neck flask that is connected to reflux condensing tube, add 2 successively, 7-dibrominated methyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, sodium hydrogencarbonate, the methyl-sulphoxide that reinjects is at 110 ℃ of reaction 12-18h; Stopped reaction is cooled to room temperature, adds frozen water, separates out a large amount of solids, filters, and the gained solid is carried out column chromatography, promptly gets 2,7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(5), produce 2,7-two Y-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, wherein X can be H, can be the R in (I) formula 1Or R 2, but be not methyl; Y can be *-CN,
Figure FDA0000128165090000051
Deng the R in (I) formula 1Or R 2Group wherein comprises following preparation method:
Figure FDA0000128165090000052
(a), when Y is *-CN, preparation method is:
Under nitrogen protection, in the single neck flask that is connected to reflux condensing tube, add 2 successively, 7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes; Oxammonium hydrochloride, the new N-Methyl pyrrolidone that steams that reinjects, at 115 ℃ of reaction 12-20h, stopped reaction is cooled to room temperature; Add frozen water, separate out a large amount of solids, filter, the gained solid is carried out column chromatography; Promptly get 2,7-dinitrile-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(b), when Y is
Figure FDA0000128165090000053
, preparation method is:
Successively with 2; 7-diformyl-2 '; 7 '-two X-9; 9 '-spiral shell, two fluorenes,
Figure FDA0000128165090000054
toluene, alkaline aluminium sesquioxide join in single neck flask back flow reaction 12-24h; After reaction finished, toluene was removed in underpressure distillation; Remaining solid is carried out column chromatography, promptly get 2,7-disubstituted olefin base-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes;
(c), when Y is , preparation method is:
Take by weighing 2 successively, 7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes, O-Phenylene Diamine or ortho-aminophenol or adjacent mercaptoaniline or derivatives thereof and brometo de amonio and methanol mixed, at room temperature stirring reaction 30-50h; Stopped reaction removes and to desolvate, and water, ETHYLE ACETATE and sherwood oil mixed solvent and washing with alcohol successively promptly get 2,7-two nitrogen heterocycles-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes again.
3. the preparation method of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes according to claim 2; It is characterized in that: wherein in the step (1); 4, the mol ratio of 4 '-dimethyl diphenyl and liquid bromine is 1: 1.2, and temperature of reaction is 0～5 ℃.
4. the preparation method of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes according to claim 2; It is characterized in that: wherein in the step (2); 4,4 '-dimethyl--2-bromo biphenyl, magnesium rod and 2, the mol ratio of 7-two X-9-Fluorenones is 1: 1.2: 0.8; During the final step dehydration cyclization, need original solvents tetrahydrofurane is removed, to improve productive rate; The hydrochloric acid massfraction that is added is 30%～37%, and itself and glacial acetic acid volume ratio are 1: 10～15.
5. the preparation method of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes according to claim 2; It is characterized in that: wherein in the step (3); 2; 7-dimethyl--2 ', 7 '-two X-9, the mol ratio of 9 '-spiral shell, two fluorenes, N-bromo-succinimide, BPO is 1: 2.2: 0.2.
6. the preparation method of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes according to claim 2; It is characterized in that: wherein in the step (4), 2,7-dibrominated methyl-2 '; 7 '-two X-9, the mol ratio of 9 '-spiral shell, two fluorenes and sodium hydrogencarbonate is 1: 30.
7. the preparation method of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes according to claim 2; It is characterized in that: wherein in the step (5a), 2,7-diformyl-2 '; 7 '-two X-9, the mol ratio of 9 '-spiral shell, two fluorenes and oxammonium hydrochloride is 1: 20;
Wherein in the step (5b) 2; 7-diformyl-2 '; 7 '-two X-9,9 '-spiral shell, two fluorenes,
Figure FDA0000128165090000061
they are 1: 10: 40 with the mol ratio of alkaline aluminium sesquioxide;
Wherein in the step (5c), 2,7-diformyl-2 ', 7 '-two X-9,9 '-spiral shell, two fluorenes and O-Phenylene Diamine, or ortho-aminophenol, or adjacent mercaptoaniline, the mol ratio of or derivatives thereof and brometo de amonio is 1: 2: 10.
8. the application of the luminous or laser diode device material of the conduct of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes.
9. the application as second order or third-order non-linear material of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes.
10. the application of the biological or chemiluminescence probe of the conduct of " on-down " asymmetrical type spiral shell two fluorene compounds that come from that methyl on the fluorenes ring changes.
CN201110459231.5A 2011-12-31 2011-12-31 'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof Expired - Fee Related CN102633610B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110459231.5A CN102633610B (en) 2011-12-31 2011-12-31 'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110459231.5A CN102633610B (en) 2011-12-31 2011-12-31 'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN102633610A true CN102633610A (en) 2012-08-15
CN102633610B CN102633610B (en) 2014-10-29

Family

ID=46618211

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110459231.5A Expired - Fee Related CN102633610B (en) 2011-12-31 2011-12-31 'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN102633610B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013498A (en) * 2012-12-29 2013-04-03 上海师范大学 Application of 2,7-di(triphenylamine diamine) spirobifluorene
CN103589419A (en) * 2013-09-17 2014-02-19 吉林奥来德光电材料股份有限公司 Spirobifluorene organic electroluminescence material and preparation method thereof
CN105622442A (en) * 2016-02-23 2016-06-01 中节能万润股份有限公司 Tert-butyl spirobifluorene compound and preparation method and application thereof
CN108892604A (en) * 2018-08-15 2018-11-27 江西师范大学 A method of preparing halogenated benzo [b] Fluorenone series compound

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1826841A (en) * 2003-07-21 2006-08-30 科文有机半导体有限公司 Organic electroluminescent element
JP2009073803A (en) * 2007-08-31 2009-04-09 Toyo Ink Mfg Co Ltd Compound having carbazolyl group and its use
JP2009194042A (en) * 2008-02-13 2009-08-27 Toyo Ink Mfg Co Ltd Charge transporting material for use of organic electroluminescence element containing carbazolyl group and its use
CN102126963A (en) * 2011-01-11 2011-07-20 上海师范大学 Spirobifluorene amido compound and preparation method thereof
WO2011116869A1 (en) * 2010-03-26 2011-09-29 Merck Patent Gmbh Compounds for electronic devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1826841A (en) * 2003-07-21 2006-08-30 科文有机半导体有限公司 Organic electroluminescent element
JP2009073803A (en) * 2007-08-31 2009-04-09 Toyo Ink Mfg Co Ltd Compound having carbazolyl group and its use
JP2009194042A (en) * 2008-02-13 2009-08-27 Toyo Ink Mfg Co Ltd Charge transporting material for use of organic electroluminescence element containing carbazolyl group and its use
WO2011116869A1 (en) * 2010-03-26 2011-09-29 Merck Patent Gmbh Compounds for electronic devices
CN102126963A (en) * 2011-01-11 2011-07-20 上海师范大学 Spirobifluorene amido compound and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LI-YEN LIN ET AL.: "A New Spirobifluorene-Bridged Bipolar System for a Nitric Oxide Turn-On Fluorescent Probe", 《ORGANIC LETTERS》, vol. 13, no. 9, 29 March 2011 (2011-03-29) *
YUH-YIH CHIEN ET AL.: "Syntheses and spectroscopic studies of spirobifluorene-bridged bipolar systems; photoinduced electron transfer reactions", 《CHEMICAL COMMUNICATIONS》, 1 November 2002 (2002-11-01) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013498A (en) * 2012-12-29 2013-04-03 上海师范大学 Application of 2,7-di(triphenylamine diamine) spirobifluorene
CN103013498B (en) * 2012-12-29 2015-02-18 上海师范大学 Application of 2,7-di(triphenylamine diamine) spirobifluorene
CN103589419A (en) * 2013-09-17 2014-02-19 吉林奥来德光电材料股份有限公司 Spirobifluorene organic electroluminescence material and preparation method thereof
CN103589419B (en) * 2013-09-17 2015-05-20 吉林奥来德光电材料股份有限公司 Spirobifluorene organic electroluminescence material and preparation method thereof
CN105622442A (en) * 2016-02-23 2016-06-01 中节能万润股份有限公司 Tert-butyl spirobifluorene compound and preparation method and application thereof
CN108892604A (en) * 2018-08-15 2018-11-27 江西师范大学 A method of preparing halogenated benzo [b] Fluorenone series compound
CN108892604B (en) * 2018-08-15 2022-05-31 江西师范大学 Method for preparing halogenated benzo [ b ] fluorenone series compounds

Also Published As

Publication number Publication date
CN102633610B (en) 2014-10-29

Similar Documents

Publication Publication Date Title
CN102617466B (en) Top-bottom asymmetrical tert-butyl spirobifluorene compound
CN104870447B (en) Fluorescent both heterocyclic and their synthetic method
CN102633610B (en) 'Vertically' unsymmetrical spirobifluorene compound derived from conversion of methyl on fluorene loop and preparation method and application thereof
Shan et al. Manipulating the AIE and low-temperature phosphorescence properties of o-carborane-imidazole derivatives via fine tuning their structural features
CN107540823A (en) One kind is based on S, the strong two-photon absorption conjugated polymer of S dioxydibenze bithiophene units and preparation method and application
CN103484103A (en) Aggregation-induced luminescent material and preparation method thereof
CN106632438B (en) A kind of A- π-D- π-A type BODIPY derivatives and preparation method thereof based on acetenyl bridging
CN102850237B (en) Method for preparing asymmetric spirobifluorene compound derived from functional group conversion on different fluorene ring
CN102863559B (en) Photoinitiator for UV (ultraviolet)-LED curing
Xiao et al. Synthesis and optoelectronic properties of a series of novel spirobifluorene derivatives starting from the readily available reagent 4, 4′-bisalkylated biphenyl
CN105566199B (en) One kind conjugation sweet-smelling alkynyl carbazole compound
CN102659688B (en) Novel spirobifluorene compound 2-methyl-7-benzimidazolyl spirobifluorene, and method and application thereof
CN106146496A (en) A kind of gulf district cyclization synthetic method of double imide derivative
CN106905354A (en) A kind of D π A π D type BODIPY analog derivatives based on acetenyl bridging and preparation method thereof
CN111039930A (en) bis-N-phenyl-3-carbazole substituted phenanthroimidazole compound, preparation method thereof and application thereof as electroluminescent device
CN102863391B (en) Compound containing 4-N-substituted phenyl-benzimidazole and preparation method thereof
Zhang et al. Studies on the synthesis and spectra characteristics of stilbenylcoumarin organic materials
CN114149431B (en) Narrow-emission quinacridone derivative as well as preparation method and application thereof
CN102766084A (en) Vertically asymmetrical methyl spirobifluorene compound
Wang et al. Introduction of chlorine into spiro [fluorene-9, 9′-xanthene] based luminophore for high color purity single-molecule white emitter
CN102766033A (en) Novel spirobifluorene compound 2,7-dimethyl-2',4-diacetyl spirobifluorene containing acetyl and preparation method and use thereof
CN104628753B (en) Meso-triphenylamine-substituted 3,5-aryl-modified boron dipyrromethene fluorophore derivatives and preparation method thereof
Liu et al. Synthesis and luminescent properties of carbazole end-capped phenylene ethynylene compounds
CN113583056A (en) 6/5/6 tetradentate cyclometalated platinum or palladium complex luminescent material based on spirofluorene-spirofluorene structure and application thereof
CN111574538A (en) D-A type near-infrared organic luminescent material and preparation method and application thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20201231