CN110407674A - 4- allyloxy benzyl alcohol, synthetic method and application - Google Patents
4- allyloxy benzyl alcohol, synthetic method and application Download PDFInfo
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- CN110407674A CN110407674A CN201910550393.6A CN201910550393A CN110407674A CN 110407674 A CN110407674 A CN 110407674A CN 201910550393 A CN201910550393 A CN 201910550393A CN 110407674 A CN110407674 A CN 110407674A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/16—Preparation of ethers by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
- C07C43/23—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing hydroxy or O-metal groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F216/12—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an ether radical
- C08F216/14—Monomers containing only one unsaturated aliphatic radical
- C08F216/1416—Monomers containing oxygen in addition to the ether oxygen, e.g. allyl glycidyl ether
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Abstract
The invention belongs to chemical technology fields, and in particular to 4- allyloxy benzyl alcohol and its synthetic method and application.It in the synthetic method of 4- allyloxy benzyl alcohol provided by the invention, using parahydroxyben-zaldehyde as starting material, is added in methanol and dissolves, then add a small amount of potassium hydroxide and sodium borohydride in system, mild reaction obtains intermediate p-Hydroxybenzylalcohol；The p-Hydroxybenzylalcohol is added in aqueous solutions of organic solvent system, sufficiently dissolves, obtains solution I；Chloropropene is added in solution I to be reacted with alkali, the 4- allyloxy benzyl alcohol is obtained.4- allyloxy benzyl alcohol provided by the invention and the polymer high temperature resistant of Fluorine containing olefine copolymerization, good insulation preformance, have great application prospect in electronic material industry, particularly for the modified comonomer of high frequency low-k copper-clad plate adhesive resin.
Description
The present invention is the divisional application of the patent of invention of Patent No. 201810921755.3.201810921755.3 Shen
It please be on 08 14th, 2018 day, a kind of entitled aromatic series allyl ether and its synthetic method and application.
Technical field
The invention belongs to chemical technology fields, and in particular to for high frequency low-k copper-clad plate resin polymerization single polymerization monomer
Synthesis and application.
Background technique
With the fast development of modern science and technology, high molecular material be in material science it is most representative, most develop
A kind of material of future.
With the 4G communication technology to the development of the 5G communication technology and the communication technology (6G to 10G) of high frequency will be future
Development trend, corresponding electronic equipment signal transmission high frequency and high-speed digitization, to carrying electronic component in electronic equipment
Baseplate material various performances requirement it is higher and higher: loss and the power loss for transmitting signal are small；In the medium of substrate,
Loss of signal and power loss can occur for signals transmission, and the size of loss increases as the frequency of transmission signal increases
Greatly, the increase of medium medium dielectric constant microwave medium (ε r) 1/2 and loss tangent angle tan δ and increase.Since the dielectric loss of signal is changed into
Thermal energy and cause substrate temperature rise, substrate temperature rise causes bigger signal media to be lost again, make signal transmission be deteriorated.Therefore, for
The transmission substrate of high-frequency signal and high-speed digital signal must select the material of low-k and low-dielectric loss.Material sheet
Body should also meet low water absorption, high-fire resistance, mechanical property and excellent processing performance etc..
General common epoxy resin, polytetrafluoroethylene (PTFE) (PTFE), polyimides (PI), polyphenylene oxide (PPE), polymerizable mesogenic
Object (LCP) dielectric constant is respectively 3.9,2.1,3.3,2.5,2.9.Fluoropolymer has good low Jie under high frequency condition
Electrical property, but pure polytetrafluoroethylene (PTFE) (PTFE) processing performance is poor, needs to carry out the bonding of processing increase and copper foil on its surface
Property, it just can be carried out the application of next step.Common PCB substrate is not to be able to satisfy high speed transmission of signals to require at present, this will be at
For the developing technology of electronics industry " bottleneck ", therefore, exploitation easy processing, high performance fluorine resin advanced low-k materials are
Reasonably necessary, the exploitation for the polymerized monomer that can be copolymerized with Fluorine containing olefine is the key that obtain high performance resin.What we developed
Aromatic series allyl ether will meet this functional requirement.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of aromatic series allyl ether and its synthetic methods.The present invention mentions
In the synthetic method of the aromatic series allyl ether of confession, the aromatic hydrocarbon substance replaced with phenolic hydroxyl group and alcoholic extract hydroxyl group with chloropropene by reacting
Synthesize aromatic series allyl ether.The aromatic series allyl ether being prepared can be widely used in the macromolecule of synthesis property
Material is especially used as the resin modified comonomer of high frequency low-k copper-clad plate.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of aromatic series allyl ether, structure is as shown in following formula I:
Wherein, the integer that n is 0 to 8；Substituent group can be o-, m-, contraposition and replace, and be also possible to straight chain, branch replaces.
The object of the invention is also to provide a kind of synthetic methods of type I compound, using II compound of formula as raw material, are added
Chloropropene is reacted to arrive aromatic series allyl ether with alkali；
Wherein, II compound of formula is the aromatic hydrocarbons that phenolic hydroxyl group and alcoholic extract hydroxyl group replace, the integer that n is 0 to 8；Substituent group can be
O-, m-, contraposition replaces, and is also possible to straight chain, branch replaces.
Further, the synthetic method the following steps are included:
1) II compound of formula is added in aqueous solutions of organic solvent system, sufficiently dissolves, obtains solution I；
2) chloropropene is added in solution I to be reacted with alkali, obtains aromatic series allyl ether.
Reaction vessel can be open container in synthesis, be also possible to common closed container, be also possible to high-pressure sealed
Container.With high-pressure closed vessel, it can be passed through the inert gases such as nitrogen, argon gas into system, maintain positive pressure.
Further, the organic solvent in the aqueous solutions of organic solvent system includes methanol, ethyl alcohol, acetone, tetrahydrofuran
Deng it is one or more；The volume ratio of organic solvent and water is 1:0.01~100 in aqueous solutions of organic solvent system.
As a preference, the volume ratio of organic solvent and water is 1:0.5~10 in aqueous solutions of organic solvent system.
As a preference, the volume ratio of organic solvent and water is 1:0.5~3 in aqueous solutions of organic solvent system.
Further, the molar ratio of II compound of formula and chloropropene, alkali is 1:1~2:1~2.
As a preference, the molar ratio of II compound of formula and chloropropene, alkali is 1:1~1.2:1~1.2.
Further, the alkali is the alkali of alkali metal containing element or the alkali of other alkaline earth metal forms, including KOH, NaOH, Ca
(OH)2, reaction temperature is 30~140 DEG C；Reaction time is 2~48h.Reaction temperature is 30~140 DEG C；Reaction time be 2~
48h。
As a preference, the alkali is KOH.
As a preference, reaction temperature is 50~70 DEG C；Reaction time is 6~15h.
Further, the synthetic method further includes step 3): the aromatic series allyl ether that step 2) obtains being passed through and is subtracted
Pressure rectifying or crystallization and purification obtain aromatic series allyl ether product.
As a preference, the aromatic series allyl ether that step 2) obtains is washed with water or saturated sodium-chloride water solution,
Until the water of washing is neutrality；Water is removed in separation, and the crude product after washing is purified by modes such as rectification under vacuum, freezing and crystallizings, i.e.,
Obtain aromatic series allyl ether product.
It is dissolved in and has with water for raw material with II compound of formula (aromatic hydrocarbons that phenolic hydroxyl group or alcoholic extract hydroxyl group replace) in the synthetic method
There are the organic solvent of certain intersolubility and the in the mixed solvent of water formation, chloropropene and alkali is added, carries out at a certain temperature anti-
It answers, obtains aromatic series allyl ether crude product, crude product obtains product by rectification under vacuum or crystallization and purification.Wherein, in aromatic hydrocarbons structure
Alcoholic extract hydroxyl group, can also be by restoring to obtain by aldehyde radical in using Bronsted acid as solvent.
As a preference, formula II be to (/ adjacent) salicylic alcohol, to (/ adjacent) hydroxylphenylethyl alcohol, to (/ adjacent)
Hydroxy benzenes isopropanol, to one kind of (/ adjacent) hydroxyl phenol；Formula II compound corresponding construction aldehyde radical replace aromatic hydrocarbons be to (/
It is adjacent) hydroxy benzaldehyde, to one kind of (/ adjacent) phenylac epsilontaldshyde.
Further, II compound of formula can restore to obtain with the aromatic hydrocarbons that corresponding construction aldehyde radical replaces, the formula II restored
Not the step of compound does not have to separating-purifying, carries out step 2) after water supplement.
The alcoholic extract hydroxyl group of II compound aromatic hydrocarbons structure of formula can restore to obtain with the aldehyde radical of corresponding construction, and the intermediate of preparation is not
It is directly used in the etherification reaction of next step with separating-purifying, yield is greatly improved and effectively reduces cost.
Further, the method for obtaining II compound of formula is restored with the aromatic hydrocarbons that II compound corresponding construction aldehyde radical of formula replaces are as follows:
Reduction reaction occurs in protic for the aromatic hydrocarbons and reducing agent that II compound corresponding construction aldehyde radical of formula replaces, and obtains the change of formula II
Close object；The protic includes whole protics, such as methanol, ethyl alcohol, water or their mixture；The reducing agent
For sodium borohydride or potassium borohydride.
The object of the invention is also to provide a kind of fragrant race's allyl ethers to prepare chemical reagent, binding material resistant to high temperature
And the application in electronic material, the application, which is included in, is preparing high frequency low-k copper-clad plate adhesive as comonomer
In application；The application include aromatic series allyl ether and Fluorine containing olefine copolymerization polymer, insulation, electronics resistant to high temperature
Application in material.
Aromatic series allyl ether of the invention polymerize with Fluorine containing olefine, and obtained resin communicates skill for meeting 5G or more
The demand of high frequency dielectric materials needed for art.The resin can be achieved through the following technical solutions:
Aromatic series allyl ether polymerize with fluoroolefins such as chlorotrifluoroethylene, tetrafluoroethene, hexafluoropropenes.It is preferred that tetrafluoro second
Alkene, hexafluoropropene, most preferably tetrafluoroethene.Copolymer of the present invention is made of having structure unit: (a) fluoroolefins；(b)
Type I compound.The content of each structural unit is respectively as follows: (a) greater than 20mol%, is less than 80mol%, (b) is greater than 20mol%, small
In 80mol%.Structure is for example shown below:
Or
The beneficial effects of the present invention are:
1) aromatic series allyl ether provided by the invention resistant to hydrolysis, thermal stability, in terms of have advantage, together
When activity is higher in polymerization process, be widely used in the high molecular material of synthesis property, have and very big answer
Use prospect.
2) in the synthetic method of aromatic series allyl ether provided by the invention, with the aromatic hydrocarbons object of phenolic hydroxyl group and alcoholic extract hydroxyl group substitution
Matter is by reacting synthesis aromatic series allyl ether with chloropropene.Wherein, the alcoholic extract hydroxyl group of this aromatic hydrocarbons structure can use corresponding construction
Aldehyde radical restores to obtain, and the intermediate of preparation does not have to the etherification reaction that separating-purifying is directly used in next step, greatly improves yield
With effectively reduce cost.
3) aromatic series allyl ether provided by the invention polymerize with Fluorine containing olefine, and obtained resin is for meeting 5G or more
The demand of high frequency dielectric materials needed for the communication technology.
Specific embodiment
The preferred embodiment of the present invention is described in detail below.Illustrated embodiment is in order to preferably to of the invention
Content is illustrated, but is not that the contents of the present invention are only limitted to illustrated embodiment.So those skilled in the art's root
Nonessential modifications and adaptations are carried out to embodiment according to foregoing invention content, still fall within protection scope of the present invention.
Embodiment 1
50 grams of p-Hydroxybenzylalcohols (0.40mol) are added in the 1L autoclave for filling 150 grams of acetone, add water
100g, chloropropene 37g (0.49mol), 22.4 grams of KOH (0.40mol).It is closed to be passed through nitrogen, maintains under 1 atmospheric pressure of pressure,
55 DEG C of insulation reactions of temperature about 15 hours.
After reaction, rotary evaporation removes the acetone in (recycling) reaction system, and remaining liquid pours into liquid separation leakage while hot
Static layering in bucket, goes water phase, takes upper organic phase, obtains the crude product 56.3g (GC detection level is 90%) of reaction preparation, receives
Rate 85%.
Obtained 4- allyloxy benzyl alcohol crude product is washed with saturated sodium-chloride water solution, until the water of washing is neutrality.
Water is separated, the crude product after washing is purified with rectification under vacuum.(3bar) collects 120 DEG C of fraction to get product under a high vacuum
For colourless transparent liquid, GC analyzes content 99.3%.1H NMR(400MHz,CDCl3) δ 7.28 (d, J=4.0Hz, 2H) .6.91
(d, J=8.0Hz, 2H),
6.09-6.02 (m, 1H), 5.41 (d, J=8.0Hz, 1H), 5.29 (d, J=8.0Hz, 1H), 4.62 (s, 2H),
4.55 (d, J=8.0Hz, 2H).
Embodiment 2
300 grams of methanol are added in three-necked flask, add 100 grams of parahydroxyben-zaldehyde (0.82mol) stirring and dissolvings, then add
Add a small amount of potassium hydroxide into system.Reaction system is cooled to 0 DEG C with low temperature water-bath.Sodium borohydride 20g (0.53mol) is dissolved in
It in KOH dilute aqueous solution (amount of water preferably just dissolving, PH ﹥ 10), is added in there-necked flask and is reacted by the way of dropwise addition, controlled
Rate of addition processed keeps system temperature to be no more than 10 DEG C.After being added dropwise, the reaction was continued 20 minutes, passes through thin-layer chromatography contact plate
To determine the end time.
The intermediate system that the first step is reacted all is poured into 2L autoclave, and water 300g, chloropropene 69g is added
(0.90mol),45gKOH(0.78mol).It is closed to be passed through nitrogen, maintains under 1 atmospheric pressure of pressure, 55 DEG C of insulation reactions of temperature are about
15 hours.
After reaction, rotary evaporation removes the methanol in (recycling) reaction system, and remaining liquid pours into liquid separation leakage while hot
Static layering in bucket, goes water phase, takes upper organic phase, obtains 4- allyloxy benzyl alcohol crude product 249g (the GC inspection of reaction preparation
Surveying content is 94%) yield 90%.
Obtained 4- allyloxy benzyl alcohol crude product is washed with saturated sodium-chloride water solution, until the water of washing is neutrality.
Water is separated, the crude product after washing is purified with rectification under vacuum.(3bar) collects 120 DEG C of fraction to get product under a high vacuum
For colourless transparent liquid, GC analyzes content 99.5%.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
- The synthetic method of 1.4- allyloxy benzyl alcohol, which comprises the steps of:1) p-Hydroxybenzylalcohol is added in the solution system of organic solvent and water, sufficiently dissolves, obtains solution I；2) chloropropene is added in solution I to be reacted with alkali, obtains the 4- allyloxy benzyl alcohol.
- 2. synthetic method according to claim 1, which is characterized in that former for starting with parahydroxyben-zaldehyde in step 1) Material, is added in methanol and dissolves, then add a small amount of potassium hydroxide and sodium borohydride in system, and mild reaction obtains para hydroxybenzene Methanol.
- 3. synthetic method according to claim 1, which is characterized in that organic solvent described in step 2) be methanol and/or Acetone；The volume ratio of organic solvent and water is 1:0.01~100 in the solution system of the organic solvent and water.
- 4. synthetic method according to claim 1, which is characterized in that alkali described in step 3) is KOH；P-Hydroxybenzylalcohol Molar ratio with chloropropene, KOH is 1:1~2:1~2.
- 5. synthetic method according to claim 1, which is characterized in that reaction temperature is 30~140 DEG C in step 3)；Reaction Time is 2~48h.
- 6. the product synthesized using the described in any item synthetic methods of claim 1-5.
- 7. product according to claim 6, which is characterized in that GC analyzes map and is1H NMR(400MHz,CDCl3)δ7.28 (d, J=4.0Hz, 2H) .6.91 (d, J=8.0Hz, 2H), 6.09-6.02 (m, 1H), 5.41 (d, J=8.0Hz, 1H), 5.29 (d, J=8.0Hz, 1H), 4.62 (s, 2H), 4.55 (d, J=8.0Hz, 2H).
- 8. the composition containing product described in claim 6, which is characterized in that the composition also contains fluoroolefins；Right is wanted Seek the molar concentration rate of 6 products and fluoroolefins are as follows: 20~80:20~80.
- 9. a kind of polymer being polymerize by product as claimed in claim 6.
- 10. polymer as claimed in claim 9 is preparing the application in high frequency low-k copper-clad plate adhesive.
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| CN201910550393.6A CN110407674A (en) | 2018-08-14 | 2018-08-14 | 4- allyloxy benzyl alcohol, synthetic method and application |
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