CN103265579B - Triazinyl triphenyl tert-butyl phosphinate compound and preparation method thereof - Google Patents
Triazinyl triphenyl tert-butyl phosphinate compound and preparation method thereof Download PDFInfo
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- CN103265579B CN103265579B CN201310219114.0A CN201310219114A CN103265579B CN 103265579 B CN103265579 B CN 103265579B CN 201310219114 A CN201310219114 A CN 201310219114A CN 103265579 B CN103265579 B CN 103265579B
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Abstract
The present invention relates to a kind of Triazinyl triphenyl tert-butyl phosphinate compound and preparation method thereof, the structure of this compound is shown below:
Description
Technical field
The present invention relates to a kind of phosphorus, nitrogen synergistic fire retardant Triazinyl triphenyl tert-butyl phosphinate compound and preparation method thereof; be specifically related to a kind of 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; 5-triaizine compounds and preparation method thereof, this compound is suitable for the fire retardant of polyester PBT, polyester PET, polyvinyl chloride, urethane, epoxy resin and unsaturated polyester etc.
Background technology
Along with the progress of science and technology and the fast development of Macromolecular materials industry, its macromolecular material obtains to be applied more and more widely, and macromolecular material has inflammableness mostly, often causes fire, can jeopardize the safety of people's life and property.Therefore, the flame-retarded research and development of macromolecular material have become one of scientific research focus, facilitate research and the widespread use of fire retardant greatly.But along with people are to the appearance of the enhancing of awareness of the importance of fire prevention and relevant flame retardant regulation, make the development of fire retardant also be faced with severe tests, there is very strong urgency in its market to environment friendly flame retardant, and the fire retardant of low toxicity or non-toxic efficient is more subject to the high praise of people.The nitrogenous compound being particularly carrier with stable triazine ring derivatives is introduced among flame retardant molecule, can bring effectively fire-retardant and become charcoal effect, having obvious cooperative flame retardant effect to the flame retardant properties improving fire retardant.This triazine ring structure and organic phosphine grafting be configured to new phosphorus nitrogen cooperative flame retardant molecule more can embody Halogen, low toxicity, hot workability good, do not separate out, the feature such as excellent flame retardancy.Therefore, this based flame retardant has vast potential for future development.
The invention discloses a kind of with cyanuric chloride and phenyl phosphinic acid di tert butyl carbonate for raw material prepares phosphorus, nitrogen synergistic fire retardant 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; the method of 5-triaizine compounds; this product structure has good symmetry, planar conjugate stability; also containing stable C-P key; there is high nitrogenous triazine ring, decomposition temperature is high; many organic phospho acids ester structure that it has and macromolecular material have good consistency; the high temperature process of energy adaptation material, has wide market application and DEVELOPMENT PROSPECT.
Summary of the invention
An object of the present invention is to propose a kind of phosphorus, nitrogen is worked in coordination with 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; 5-triaizine compounds, its flame-retarded efficiency is high, has good consistency with macromolecular material; the high temperature process of energy adaptation material, can overcome deficiency of the prior art.
For achieving the above object, present invention employs following technical scheme:
2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines compound, it is characterized in that, the structure of this compound is shown below:
Another object of the present invention is to propose a kind of 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; the preparation method of 5-triaizine compounds, its cheaper starting materials is easy to get, with low cost, facility investment is few, technique is simple, be easy to large-scale production, and the method is:
Under nitrogen protection, phenyl phosphinic acid di tert butyl carbonate, 1: 3 ~ 1: 4, is added dropwise in the solution of the organic solvent of certain density cyanuric chloride by mol ratio at twice that control cyanuric chloride and phenyl phosphinic acid di tert butyl carbonate.First, at 65 DEG C, instill the phenyl phosphinic acid di tert butyl carbonate of 2 times of mol ratios, then control temperature is at 75 DEG C ~ 85 DEG C, stirring reaction 2.0 ~ 2.5h; Then 90 DEG C ~ 100 DEG C are warming up to; instill the phenyl phosphinic acid di tert butyl carbonate of 1 ~ 2 times of mol ratio again; continue insulation reaction 5 ~ 6h, distill out organic solvent, then decompression steams a small amount of low boilers; purified process; obtain 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1; 3,5-triazine.
The solution of the organic solvent of certain density cyanuric chloride as above is the quality gram of cyanuric chloride is 1: 6 ~ 1: 15 with the volume milliliter ratio of organic solvent.
Organic solvent as above is dioxane, ethylene glycol diethyl ether or toluene.
Purified process as above is for adding the ethyl acetate (grams per milliliter) of quality product 2 ~ 2.5 times; stirring makes it fully dissolve; drip 1 ~ 1.5 times (milliliter/milliliter) that sherwood oil is about ethyl acetate, product crystallization is separated out completely, filter; vacuum-drying; obtain 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1; 3,5-triazine.
Of the present invention 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; 5-triazine is white or faint yellow solid, and product yield is 86.2% ~ 90.6%, and fusing point is 121 DEG C; decomposition temperature: (230 ± 5) DEG C, it is suitable for the fire retardant of polyester PBT, polyester PET, polyvinyl chloride, urethane, epoxy resin and unsaturated polyester etc.Preparation technology's principle of 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines is shown below:
Compared with prior art, beneficial effect of the present invention is:
1. of the present invention 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines is phosphorus, nitrogen synergistic fire retardant; cooperative flame retardant usefulness is high; structural symmetry is good, and product is stablized, and decomposition temperature is higher; and have the consistency of organic polyphosphonic ester structure and macromolecular material good, have good plasticity concurrently.
2. 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines compound of the present invention belongs to efficient halogen-free anti-inflaming agent, has good applied environment friendly.
3. the preparation technology of 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines of the present invention is simple, and facility investment is few, and cost is low, is easy to carry out large-scale production, has again good economic benefit.
Accompanying drawing explanation
In order to the stuctures and properties spy further illustrating product provides following accompanying drawing.
1, the infrared spectrogram of 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines, refers to Figure of description Fig. 1.
Fig. 1 shows, at 2980cm
-1, 2935cm
-1place is the stretching vibration peak of the c h bond of methyl, 1124cm
-1place is the stretching vibration peak of C-O key, 989cm
-1place is the stretching vibration of P-O key, 1236cm
-1place is the stretching vibration of P=O key, 751cm
-1the stretching vibration of place P-C key, 1667cm
-1the stretching vibration of place C=N key, 3058cm
-1place is the stretching vibration of the c h bond on phenyl ring.
2, the nuclear magnetic spectrum figure of 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines, refers to Figure of description Fig. 2.
Fig. 2 shows, makes solvent with deuterochloroform, and chemical shift δ 1.21 ~ 1.47 place is the methyl H peak be connected with tertiary carbon; δ 7.29 ~ 8.11 is P-C
6h
5upper phenyl ring H peak.
Specific embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described further.
Embodiment 1 is in the 100ml there-necked flask that agitator, thermometer and high performance reflux condenser are housed, add 3.7g (0.02mol) cyanuric chloride and 40ml dioxane, under nitrogen protection, stirring and dissolving, first, at 65 DEG C, 11.3g (0.04mol) phenyl phosphinic acid di tert butyl carbonate is added drop-wise in the solution of cyanuric chloride, control temperature at 75 DEG C, stirring reaction 2.5h; Then be warming up to 90 DEG C; drip the phenyl phosphinic acid di tert butyl carbonate of 5.6g (0.02mol) again; insulation reaction 6h, distill out dioxane (reclaim and use), then decompression steams a small amount of low boilers; then be cooled to 50 DEG C; add ethyl acetate 32ml, stir and make it fully dissolve, drip sherwood oil and be about 35ml; product crystallization is separated out completely; filter, vacuum-drying, obtains 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines; productive rate is 86.2%, and decomposition temperature is 230 DEG C.
Embodiment 2 is in the 100ml there-necked flask that agitator, thermometer and high performance reflux condenser are housed, add 3.7g (0.02mol) cyanuric chloride and 40ml dioxane, under nitrogen protection, stirring and dissolving, first, at 65 DEG C, 10.3g (0.04mol) phenyl phosphinic acid di tert butyl carbonate is added drop-wise in the solution of cyanuric chloride, control temperature at 80 DEG C, stirring reaction 2h; Then be warming up to 90 DEG C; drip the phenyl phosphinic acid di tert butyl carbonate of 6.8g (0.024mol) again; insulation reaction 5h, distills out dioxane (reclaim and use), then decompression steams excessive phenyl phosphinic acid di tert butyl carbonate (reclaim and use); then be cooled to 50 DEG C; add ethyl acetate 30ml, stir and make it fully dissolve, drip sherwood oil and be about 30ml; product crystallization is separated out completely; filter, vacuum-drying, obtains 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines; productive rate is 90.0%, and decomposition temperature is 235 DEG C.
Embodiment 3 is in the 100ml there-necked flask that agitator, thermometer and high performance reflux condenser are housed, add 3.7g (0.02mol) cyanuric chloride and 40ml ethylene glycol diethyl ether, under nitrogen protection, stirring and dissolving, first, at 65 DEG C, 10.3g (0.04mol) phenyl phosphinic acid di tert butyl carbonate is added drop-wise in the solution of cyanuric chloride, control temperature at 80 DEG C, stirring reaction 2h, then be warming up to 100 DEG C, drip the phenyl phosphinic acid di tert butyl carbonate of 7.9g (0.028mol) again, insulation reaction 5h, distill out ethylene glycol diethyl ether (reclaim and use), decompression steams excessive phenyl phosphinic acid di tert butyl carbonate (reclaim and use) again, then be cooled to 50 DEG C, add ethyl acetate 30ml, stirring makes it fully dissolve, drip sherwood oil and be about 35ml, product crystallization is separated out completely, filter, vacuum-drying, obtain 2, 4, 6-tri-(O-tbutyl-phenyl time phosphono)-1, 3, 5-triazine, productive rate is 90.6%, decomposition temperature is 235 DEG C.
Embodiment 4 is in the 100ml there-necked flask that agitator, thermometer and high performance reflux condenser are housed, add 3.7g (0.02mol) cyanuric chloride and 40ml toluene, under nitrogen protection, stirring and dissolving, first, at 65 DEG C, 10.3g (0.04mol) phenyl phosphinic acid di tert butyl carbonate is added drop-wise in the solution of cyanuric chloride, control temperature at 85 DEG C, stirring reaction 2.5h; Then be warming up to 90 DEG C; drip the Dibutyl phenyl hypophosphite of 9.0g (0.032mol) again; insulation reaction 6h, distills out toluene (reclaim and use), then decompression steams excessive phenyl phosphinic acid di tert butyl carbonate (reclaim and use); then be cooled to 50 DEG C; add ethyl acetate 34ml, stir and make it fully dissolve, drip sherwood oil and be about 37ml; product crystallization is separated out completely; filter, vacuum-drying, obtains 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines; productive rate is 89.0%, and decomposition temperature is 235 DEG C.
Embodiment 5 is in the 100ml there-necked flask that agitator, thermometer and high performance reflux condenser are housed, add 3.7g (0.02mol) cyanuric chloride and 40ml ethylene glycol diethyl ether, under nitrogen protection, stirring and dissolving, first, at 65 DEG C, 10.3g (0.04mol) phenyl phosphinic acid di tert butyl carbonate is added drop-wise in the solution of cyanuric chloride, control temperature at 85 DEG C, stirring reaction 2h; Then be warming up to 100 DEG C; drip the phenyl phosphinic acid di tert butyl carbonate of 10.1g (0.036mol) again; insulation reaction 5h, distills out ethylene glycol diethyl ether (reclaim and use), then decompression steams excessive Dibutyl phenyl hypophosphite (reclaim and use); then be cooled to 50 DEG C; add ethyl acetate 35ml, stir and make it fully dissolve, drip sherwood oil and be about 39ml; product crystallization is separated out completely; filter, vacuum-drying, obtains 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines; productive rate is 88.1%, and decomposition temperature is 235 DEG C.
Embodiment 6 is in the 100ml there-necked flask that agitator, thermometer and high performance reflux condenser are housed, add 3.7g (0.02mol) cyanuric chloride and 40ml toluene, under nitrogen protection, stirring and dissolving, first, at 65 DEG C, 10.3g (0.04mol) phenyl phosphinic acid di tert butyl carbonate is added drop-wise in the solution of cyanuric chloride, control temperature at 80 DEG C, stirring reaction 2h; Then be warming up to 100 DEG C; drip the phenyl phosphinic acid di tert butyl carbonate of 11.3g (0.04mol) again; insulation reaction 4h, distills out toluene (reclaim and use), then decompression steams excessive phenyl phosphinic acid di tert butyl carbonate (reclaim and use); then be cooled to 50 DEG C; add ethyl acetate 32ml, stir and make it fully dissolve, drip sherwood oil and be about 38ml; product crystallization is separated out completely; filter, vacuum-drying, obtains 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines; productive rate is 90.2%, and decomposition temperature is 230 DEG C.
Table 1 preparation example main technologic parameters
2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines of above-mentioned synthesis is also applied in PBT by inventor.The limiting oxygen index(LOI) of reference: GB/T2406-2008 " Plastics Combustion method for testing performance-oxygen index method " test sample product.Simultaneously also by product and MCA composite after, join in PBT according to certain proportioning, finally at 220 DEG C, extrude batten with XJ-01 type single screw extrusion machine, batten is of a size of length 15mm, diameter 3mm, the molten drop of test bars and carbon-forming performance.The LOI test result surveyed in table 2 to table 3.
The flame retardant properties of table 2 product in PBT
Table 3 product and MCA composite in PBT flame retardant properties
Claims (4)
1. the preparation method of a phosphorus, nitrogen synergistic fire retardant triazine triphenyl phosphinic acid tert-butyl ester 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines compound, it is characterized in that, the method is:
Under nitrogen protection, phenyl phosphinic acid di tert butyl carbonate, 1: 3 ~ 1: 4, is added dropwise in the solution of the organic solvent of certain density cyanuric chloride by mol ratio at twice that control cyanuric chloride and phenyl phosphinic acid di tert butyl carbonate; First, at 65 DEG C, instill the phenyl phosphinic acid di tert butyl carbonate of 2 times of mol ratios, then control temperature is at 75 DEG C ~ 85 DEG C, stirring reaction 2.0 ~ 2.5h; Then 90 DEG C ~ 100 DEG C are warming up to; instill the phenyl phosphinic acid di tert butyl carbonate of 1 ~ 2 times of mol ratio again, continue insulation reaction 5 ~ 6h, distill out organic solvent; decompression steams a small amount of low boilers again; purified process, obtains 2, and 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3,5-triazine, the structure of this compound is shown below:
2. according to claim 12; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; the preparation method of 5-triaizine compounds, is characterized in that: the solution of the organic solvent of described certain density cyanuric chloride is the quality gram of cyanuric chloride is 1: 6 ~ 1: 15 with the volume milliliter ratio of organic solvent.
3. the preparation method of 2,4,6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines compound according to claim 1, is characterized in that: described organic solvent is dioxane, ethylene glycol diethyl ether or toluene.
4. according to claim 12; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1; 3; the preparation method of 5-triaizine compounds; it is characterized in that: described purified process, for adding the ethyl acetate (grams per milliliter) of quality product 2 ~ 2.5 times, is stirred and made it fully dissolve, drip 1 ~ 1.5 times (milliliter/milliliter) that sherwood oil is ethyl acetate; product crystallization is separated out completely; filter, vacuum-drying, obtains 2; 4; 6-tri-(O-tbutyl-phenyl time phosphono)-1,3,5-triazines.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3410809A (en) * | 1965-05-28 | 1968-11-12 | Monsanto Res Corp | Cn compounds |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3410809A (en) * | 1965-05-28 | 1968-11-12 | Monsanto Res Corp | Cn compounds |
Non-Patent Citations (2)
| Title |
|---|
| 1,3,5-Triazines. III. Arbuzov reactions of chlorotriazines;W. Hewertson et al.;《Journal of the Chemical Society》;19630101;1670-1675 * |
| 2,4,6-三(O,O-二甲基磷酰基)-1,3,5-三嗪的合成及表征;王彦林等;《兰州理工大学学报》;20100630;第36卷(第3期);78-80 * |
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