CN109627491A - It is a kind of using catechol as the phosphate flame retardant of skeleton and its environment-friendly preparation method thereof - Google Patents

It is a kind of using catechol as the phosphate flame retardant of skeleton and its environment-friendly preparation method thereof Download PDF

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Publication number
CN109627491A
CN109627491A CN201811540593.5A CN201811540593A CN109627491A CN 109627491 A CN109627491 A CN 109627491A CN 201811540593 A CN201811540593 A CN 201811540593A CN 109627491 A CN109627491 A CN 109627491A
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catechol
skeleton
flame retardant
phosphate flame
environment
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职慧珍
张孟宇
黄小东
杨锦飞
杨世刚
刘德标
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Jiangsu Sanjili Chemical Co Ltd
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Jiangsu Sanjili Chemical Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/49Phosphorus-containing compounds
    • C08K5/51Phosphorus bound to oxygen
    • C08K5/52Phosphorus bound to oxygen only
    • C08K5/527Cyclic esters
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/6574Esters of oxyacids of phosphorus
    • C07F9/65742Esters of oxyacids of phosphorus non-condensed with carbocyclic rings or heterocyclic rings or ring systems

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Fireproofing Substances (AREA)

Abstract

The invention discloses a kind of using catechol as the phosphate flame retardant of skeleton and its environment-friendly preparation method thereof.A kind of novel halogen-free phosphorus-containing based flame retardant has been synthesized by two-step process using catechol, phosphorus oxychloride and alcohol or phenol as raw material in the present invention.The fire retardant not only good flame retardation effect, and it is environment friendly and pollution-free.Meanwhile raw material of the invention is simple and easy to get, and it is low in cost, there is very strong practicability.

Description

It is a kind of using catechol as the phosphate flame retardant of skeleton and its environment-friendly preparation method thereof
Technical field
The present invention relates to fire-retardant FRW field, in particular to it is a kind of using catechol as the phosphate flame retardant of skeleton and Its environment-friendly preparation method thereof.
Background technique
In recent years, increasing substantially with the increasingly strict and plastic products yield of fire safety standard, the overwhelming majority can Combustion or inflammable material need to promote its anti-flammability by addition fire retardant, to prevent the hidden danger such as fire.In addition to this, high score Sub- material can also generate the toxic gases such as toluene, hydrogen chloride in burning, so that majority is because of death by suffocation when fire occurs.And Fire retardant is then the effective auxiliary agent for changing high molecular material combustibility, and original flammable, inflammable material is made to have flame retardancy, disappear Cigarette and self-extinguishment, can greatly fire preventing, preferably satisfaction safety in production and life requirement.Phosphate is as a kind of Phosphorous ester type compound, it is many kinds of, it is widely used.According to the difference of added functional group, phosphate may be used as drug Precursor, intermediate;It is used as the various additives such as adhesive, dispersing agent, curing agent, surfactant and fire retardant.
Phosphate has the advantages that low cigarette, nontoxic as a kind of organic halogen-free phosphorus-containing fire retardant agent in combustion, when use It is more environmentally friendly, be recognized be alternative halogen containing flame-retardant one of staple product, have good development prospect.
It is mentioned in the documents such as Aleksandrsaka, Jan Michalski during Arbuzov Reaction mechanism obtains Mesosome;GB1175211 mentions the substitution catechol ester obtained with phosphoric acid or phosphorus pentoxide;It is mentioned in the documents such as Von J There is a unstable catechol esters chloride to dissociate to obtain intermediate;It is mentioned in CN 102086215B: the first step, In chloroform, under the catalysis of triethylamine, heating makes catechol and phosphorus oxychloride reaction, and cyclization chemical combination is obtained after vacuum distillation Object;Second step under the catalysis of triethylamine, above-mentioned ring compound is reacted with phloroglucin heating, decompression is steamed in chloroform It evaporates and with being obtained after inorganic neutralizing treatment between three (1,3- dioxa -2- phospha -2- oxo -1,2- dihydro benzofuran) phosphoric acid Benzenetriol ester.The use of chloroform and triethylamine increases subsequent processing steps.
Summary of the invention
It is good that the object of the present invention is to provide a kind of flame retardant properties, and the New-type halide-free for saving cost contains phosphorus type flame retardant, The present invention can realize the green syt of this new flame retardant to avoid excessive postprocessing working procedures.
The present invention is achieved in the following ways: a kind of using catechol as the phosphate flame retardant of skeleton, it has Structural formula shown in formula (1):
It is a further object to provide the environment-friendly preparation method thereofs of above-mentioned new flame retardant.
A kind of to prepare above-mentioned using catechol as the environment-friendly preparation method thereof of the phosphate flame retardant of skeleton, it includes following step Rapid: the first step, under catalysts conditions, catechol is directly reacted with phosphorus oxychloride, is obtained among phosphoryl chloride phosphorus oxychloride after vacuum distillation Body;Second step, in the molten state, phosphinylidyne chloromethylated intermediate and single phenol, diphenol, monohydric alcohol or diol reaction are obtained with adjacent benzene Diphenol is the phosphate of skeleton.
Reaction temperature in the first step reaction is 10 ~ 100 DEG C, and the reaction time is 2 ~ 8 h.
Reaction temperature in the second step reaction is 50 ~ 180 DEG C, and the reaction time is 2 ~ 10 h.
The temperature of the vacuum distillation is 100 DEG C hereinafter, the time is 10-60 min.
In the first step reaction, the molar ratio of catechol and phosphorus oxychloride is 1:1 ~ 1:6.
In second step reaction, phosphinylidyne chloromethylated intermediate and single phenol, diphenol, monohydric alcohol or dihydric alcohol molar ratio be 1:1 ~ 1:5.
In the first step reaction, catalyst [A]-x [Lewis acid], wherein A is amine and its derivative, imidazoles and its spreads out Biology or pyridine and its derivatives;X is 0.2-2%, and x is the molar ratio of Lewis acid and A when synthesizing ionic liquid.
In the first step reaction, amine and its derivative are trialkylamine, and wherein alkyl is methyl, ethyl, propyl, fourth Base, amyl, hexyl, heptyl, octyl, nonyl, isopropyl, isobutyl group or isopentyl;Imidazole and its derivants are imidazoles, N- alkyl Imidazoles or 1,3- dialkylimidazolium, wherein alkyl is methyl, ethyl, propyl or butyl;Pyridine and its derivatives are pyridine, alkane Yl pyridines or haloalkylpyridin, wherein alkyl is methyl, ethyl, propyl or butyl, and halogeno-group is chloro or bromo.It is described Lewis acid is MgCl2、ZnCl2、SnCl2、AlCl3、FeCl3And TiCl4
In the first step reaction, catalytic amount is the 0.001% ~ 0.01% of catechol quality.
It is reacted under negative pressure when raw material is single phenol or diphenol in the second step reaction, pressure is -0.01 ~ 0.01 MPa。
The utility model has the advantages that the present invention has synthesized a kind of novel halogen-free phosphorus-containing based flame retardant, starting point is obtained by Thermogravimetric Data When solution temperature is 205 DEG C, when temperature reaches 800 DEG C, residual carbon content is 25% or more, and traditional phosphate resistance such as BDP, RDP Agent remaining carbon is fired 20% hereinafter, illustrating good flame retardation effect of the present invention;Synthetic method of the present invention is environment friendly and pollution-free, and raw material is simple It is easy to get, it is low in cost, there is very strong practicability.
Shown in reaction equation of the present invention descends:
Specific embodiment
By the following specific examples further illustrate the invention, but is not used to limit practical range of the invention.
Embodiment 1
Take the catechol of 91.8 g (0.8 mol) be placed in equipped with electric mixer, thermometer, condenser pipe four-neck flask in, Then the phosphorus oxychloride and 0.009 g BMIMCl-AlCl of 141.1 g (0.92 mol) is added3, reaction temperature is 10 DEG C, instead 8 h are answered, 10 min are evaporated under reduced pressure after reaction and remove excessive phosphorus oxychloride;The phenol of 112.9 g (1.2 mol) is added, controls Reaction temperature is 180 DEG C, 2 h of -0.01MPa Depressor response, obtains brown solid, and yield is the % of 90 % ~ 95.It is obtained by Thermogravimetric Data When initial decomposition temperature is 205 DEG C out, when temperature reaches 800 DEG C, residual carbon content 26%.
Embodiment 2
Take the catechol of 91.8 g (0.8 mol) be placed in equipped with electric mixer, thermometer, condenser pipe four-neck flask in, Then the phosphorus oxychloride and 0.0009 g BMIMCl-AlCl of 490.7g (3.2mol) is added3, 50 DEG C are warming up to, 6 h are reacted, Vacuum distillation removes excessive phosphorus oxychloride after reaction;The ethyl alcohol of 110.6 g (2.4 mol) is added, control reaction temperature is 70 DEG C, 10 h of -0.01MPa Depressor response obtains brown solid, and yield is the % of 90 % ~ 95.Show that temperature is decomposed in starting by Thermogravimetric Data When degree is 205 DEG C, when temperature reaches 800 DEG C, residual carbon content 25%.
Embodiment 3
Take the catechol of 91.8 g (0.8 mol) be placed in equipped with electric mixer, thermometer, condenser pipe four-neck flask in, Then the phosphorus oxychloride and 0.009 g BMIMCl-AlCl of 736.0g (4.8mol) is added3, 100 DEG C are warming up to, 2 h are reacted, 100 DEG C or less 60 min of vacuum distillation remove excessive phosphorus oxychloride after reaction;The ethyl alcohol of 36.9 g (0.8 mol) is added, Controlling reaction temperature is 50 DEG C, 2 h of -0.01MPa Depressor response, obtains brown solid, and yield is the % of 90 % ~ 95.By thermogravimetric number According to obtain initial decomposition temperature be 205 DEG C when, when temperature reaches 800 DEG C, residual carbon content 26%.
Embodiment 4
Take the catechol of 91.8 g (0.8 mol) be placed in equipped with electric mixer, thermometer, condenser pipe four-neck flask in, Then the phosphorus oxychloride and 0.0009 g Et of 490.7g (3.2mol) is added3NHCl-AlCl3, 50 DEG C are warming up to, 6 h are reacted, It is evaporated under reduced pressure 30 min after reaction and removes excessive phosphorus oxychloride;It is warming up between 180 DEG C of 264.3 g of addition (2.4 mol) Benzenediol, 0.01MPa react 10 h, obtain brown solid, and yield is the % of 90 % ~ 95.Show that temperature is decomposed in starting by Thermogravimetric Data When degree is 205 DEG C, when temperature reaches 800 DEG C, residual carbon content 26%.
Embodiment 5
Take the catechol of 91.8 g (0.8 mol) be placed in equipped with electric mixer, thermometer, condenser pipe four-neck flask in, Then the phosphorus oxychloride and 0.009 g Et of 141.1 g (0.92 mol) is added3NHCl-AlCl3, 100 DEG C are warming up to, reaction 2 H, 100 DEG C or less 10 min of vacuum distillation remove excessive phosphorus oxychloride after reaction;Cool to 90 DEG C of 248.3 g (4.0 of addition Mol ethylene glycol), 0.01MPa react 5 h, obtain brown solid, and yield is the % of 90 % ~ 95.Starting is obtained by Thermogravimetric Data When decomposition temperature is 205 DEG C, when temperature reaches 800 DEG C, residual carbon content 26%.
Embodiment 6
Take the catechol of 91.8 g (0.8 mol) be placed in equipped with electric mixer, thermometer, condenser pipe four-neck flask in, Then the phosphorus oxychloride and 0.0009 g Et of 736.0g (4.8mol) is added3NHCl-AlCl3, control reaction temperature is 20 DEG C, 8 h are reacted, 60 min are evaporated under reduced pressure after reaction and remove excessive phosphorus oxychloride;It is warming up to 140 DEG C of 273.9 g (1.2 of addition Mol bisphenol-A), 0.01MPa react 5 h, obtain brown solid, and yield is the % of 90 % ~ 95.Starting point is obtained by Thermogravimetric Data When solution temperature is 205 DEG C, when temperature reaches 800 DEG C, residual carbon content 26%.

Claims (10)

1. a kind of using catechol as the phosphate flame retardant of skeleton, which is characterized in that it has structural formula shown in formula (1):
2. a kind of prepare using catechol as the environment-friendly preparation method thereof of the phosphate flame retardant of skeleton described in claim 1, special Sign is it the following steps are included: the first step, under catalysts conditions, catechol is directly reacted with phosphorus oxychloride, and decompression is steamed Phosphinylidyne chloromethylated intermediate is obtained after evaporating;Second step, in the molten state, phosphinylidyne chloromethylated intermediate and single phenol, diphenol, monohydric alcohol or binary Alcohol reaction, obtains a kind of using catechol as the phosphate of skeleton.
3. according to claim 2 using catechol as the environment-friendly preparation method thereof of the phosphate flame retardant of skeleton, feature exists In the reaction temperature in the first step reaction is 10 ~ 100 DEG C, and the reaction time is 2 ~ 8 h.
4. according to claim 2 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, which is characterized in that Reaction temperature in the second step reaction is 50 ~ 180 DEG C, and the reaction time is 2 ~ 10 h;The second step reaction is under negative pressure It is reacted, pressure is -0.01 ~ 0.01 MPa.
5. according to claim 2 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, which is characterized in that The temperature of the vacuum distillation is 100 DEG C hereinafter, the time is 10-60 min.
6. according to claim 2 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, which is characterized in that In the first step reaction, the molar ratio of catechol and phosphorus oxychloride is 1:1 ~ 1:6.
7. according to claim 2 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, which is characterized in that In the second step reaction, the molar ratio of phosphinylidyne chloromethylated intermediate and single phenol, diphenol, monohydric alcohol or dihydric alcohol is 1:1 ~ 1:5.
8. according to claim 2 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, which is characterized in that In first step reaction, catalyst is [A]-x [Lewis acid], wherein A be amine and its derivative, imidazole and its derivants or Pyridine and its derivatives;X is 0.2-2%, and x is the molar ratio of Lewis acid and A when synthesizing ionic liquid.
9. according to claim 9 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, which is characterized in that The amine and its derivative are trialkylamine, wherein alkyl be methyl, ethyl, propyl, butyl, amyl, hexyl, heptyl, octyl, Nonyl, isopropyl, isobutyl group or isopentyl;Imidazole and its derivants be imidazoles, N- alkyl imidazole or 1,3- dialkylimidazolium, Wherein alkyl is methyl, ethyl, propyl or butyl;Pyridine and its derivatives be pyridine, alkyl pyridine or haloalkylpyridin, Middle alkyl is methyl, ethyl, propyl or butyl, and halogeno-group is chloro or bromo;The Lewis acid is MgCl2、ZnCl2、 SnCl2、AlCl3、FeCl3Or TiCl4
10. according to claim 2 using catechol as the phosphate flame retardant environment-friendly preparation method thereof of skeleton, feature exists In in the first step reaction, catalytic amount is the 0.001% ~ 0.01% of catechol quality.
CN201811540593.5A 2018-12-17 2018-12-17 It is a kind of using catechol as the phosphate flame retardant of skeleton and its environment-friendly preparation method thereof Pending CN109627491A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110642884A (en) * 2019-10-08 2020-01-03 山东瑞兴阻燃科技有限公司 Phosphate flame retardant with catechol as skeleton and green preparation method thereof
CN114249762A (en) * 2021-12-10 2022-03-29 江苏三吉利化工股份有限公司 Method for preparing high-performance phosphate ester flame retardant from benzenediol tar

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JPH101451A (en) * 1996-06-14 1998-01-06 Sankyo Kagaku Kk Production of 3,4-dihydroxybenzaldehyde or 3-alkyloxy-4-hydroxybenzaldehyde
CN102086215A (en) * 2010-12-27 2011-06-08 江汉大学 Novel fire retardant tri(1,3-dioxa-2-phospho hetero-2-oxo-1,2-indane) m-cresyl phosphate and preparation method thereof
CN102617635A (en) * 2012-02-23 2012-08-01 四川大学 Method for preparing organic phosphorous flame retardant with hydroquinone phosphate as framework
CN103394375A (en) * 2013-07-15 2013-11-20 响水雅克化工有限公司 Ionic liquid catalyst and preparation method of same

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JPH101451A (en) * 1996-06-14 1998-01-06 Sankyo Kagaku Kk Production of 3,4-dihydroxybenzaldehyde or 3-alkyloxy-4-hydroxybenzaldehyde
CN102086215A (en) * 2010-12-27 2011-06-08 江汉大学 Novel fire retardant tri(1,3-dioxa-2-phospho hetero-2-oxo-1,2-indane) m-cresyl phosphate and preparation method thereof
CN102617635A (en) * 2012-02-23 2012-08-01 四川大学 Method for preparing organic phosphorous flame retardant with hydroquinone phosphate as framework
CN103394375A (en) * 2013-07-15 2013-11-20 响水雅克化工有限公司 Ionic liquid catalyst and preparation method of same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110642884A (en) * 2019-10-08 2020-01-03 山东瑞兴阻燃科技有限公司 Phosphate flame retardant with catechol as skeleton and green preparation method thereof
CN114249762A (en) * 2021-12-10 2022-03-29 江苏三吉利化工股份有限公司 Method for preparing high-performance phosphate ester flame retardant from benzenediol tar

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