CN102702174A - Method for preparing light stabilizer tri(1-cyclohexyloxy-2,2,6,6-tetramethyl-4-oxy-piperidyl)-1,3,5-triazine - Google Patents

Method for preparing light stabilizer tri(1-cyclohexyloxy-2,2,6,6-tetramethyl-4-oxy-piperidyl)-1,3,5-triazine Download PDF

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CN102702174A
CN102702174A CN2012102023761A CN201210202376A CN102702174A CN 102702174 A CN102702174 A CN 102702174A CN 2012102023761 A CN2012102023761 A CN 2012102023761A CN 201210202376 A CN201210202376 A CN 201210202376A CN 102702174 A CN102702174 A CN 102702174A
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tetramethyl
piperidyl
oxygen base
cyclohexyloxy
triazine
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CN102702174B (en
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王树清
王歆然
孙冬兵
杜承贤
田新荣
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Rudong Jinkangtai Chemical Co ltd
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Nantong Huikang International Enterprise Co Ltd
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Abstract

The invention discloses a method for preparing a light stabilizer tri(1-cyclohexyloxy-2,2,6,6-tetramethyl-4-oxy-piperidyl)-1,3,5-triazine. The method comprises the following step of: reacting cyanuric chloride, 2,2,6,6-tetramethyl-4-piperidinol and alkali serving as raw materials in the presence of a catalyst to obtain the tri(1-cyclohexyloxy-2,2,6,6-tetramethyl-4-oxy-piperidyl)-1,3,5-triazine. The tri(1-cyclohexyloxy-2,2,6,6-tetramethyl-4-oxy-piperidyl)-1,3,5-triazine is prepared from tri(2,2,6,6-tetramethyl-4-oxy-piperidyl)-1,3,5-triazine, cyclohexane and an oxidant serving as the raw materials, the separation and purification processes are simple, reaction time is short, the yield of the product is over 95 percent, the purity of the product is high, energy consumption is low, environmental pollution is light, cost is low, and the method is an ideal process for implementing industrial production.

Description

The preparation method of photostabilizer three (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines
Technical field
The present invention relates to the preparation method of a kind of photostabilizer three (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines.
Background technology
Three (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines.It is the hindered amine type light stabilizer of high-efficiency low-toxicity low alkalinity.Good with most of industrial solvent intermiscibilities, have superior polymer intermiscibility, be applicable to Vestolen PP 7052, vinyon and fibre product.Its molecular formula is C 48H 84O 6N 3, molecular weight: 841.23, molecular structural formula:
Figure 2012102023761100002DEST_PATH_IMAGE001
Its outward appearance is the white solid powder.Three (1-cyclohexyloxy-2,2,6,6-tetramethyl-s-4-oxygen base-piperidyl)-1,3; Though the 5-triazine early has application, but about three (1-cyclohexyloxy-2,2,6,6-tetramethyl-s-4-oxygen base-piperidyl)-1; 3, the synthetic domestic literature report of 5-triazine is few, therefore studies three (1-cyclohexyloxies-2,2; 6,6-tetramethyl--4-oxygen base-piperidyl)-preparation method of 1,3,5-triazines has important industrial application value.
Summary of the invention
The object of the present invention is to provide a kind of environmental pollution little, cost is low, the preparation method of the photostabilizer three that product yield is high (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines.
Technical solution of the present invention is:
A kind of photostabilizer three (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3; The preparation method of 5-triazine is with three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine, hexanaphthene, tertbutyl peroxide are raw material, and reaction makes three (1-cyclohexyloxies-2,2 under the condition that catalyzer exists; 6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines; Said catalyzer is sodium hydroxide or Pottasium Hydroxide or sodium hydride, preferred sodium hydroxide.Said catalyzer is molybdic oxide or Vanadium Pentoxide in FLAKES or chromium sesquioxide or tungstic oxide or Manganse Dioxide, preferred molybdic oxide.
Three (2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and 1,3,5-triazines, hexanaphthene, tertbutyl peroxide, catalyst consumption ratio count by quality: three (2; 2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine: hexanaphthene: tertbutyl peroxide: catalyzer=1:6.16 ~ 12.32:1.98 ~ 4.12:0.007 ~ 0.05.
With three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3; 5-triazine, hexanaphthene, tertbutyl peroxide are raw material, under the condition that catalyzer exists, oxidizing reaction take place, and reaction removes by filter catalyzer after finishing, and the organic phase after the filtration is carried out underpressure distillation; Distill out the hexanaphthene of hexanaphthene total amount 50%, be cooled to 8-10 ℃ then, crystallization is filtered, and promptly gets three (1-cyclohexyloxies-2; 2,6,6-tetramethyl--4-oxygen base-piperidyl)-the 1,3,5-triazines product.The temperature of said oxidizing reaction is 85-100 ℃.The time of said oxidizing reaction is 12-20h.
The present invention compared with prior art has the following advantages: the present invention synthesizes three (1-cyclohexyloxy-2,2,6,6-tetramethyl-s-4-oxygen base-piperidyl)-1; 3, the 5-triazine, it is simple to separate purification process, and the reaction times is short; Product yield reaches more than 95%, and product purity is higher, less energy consumption; Environmental pollution is little, and cost is low, is the comparatively ideal technology that realizes suitability for industrialized production.
Embodiment:
In order to deepen to understanding of the present invention, will combine embodiment that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
With three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3; 5-triazine, hexanaphthene, tertbutyl peroxide are raw material, under the condition that catalyzer exists, oxidizing reaction take place, and reaction removes by filter catalyzer after finishing, and the organic phase after the filtration is carried out underpressure distillation; Distill out the hexanaphthene of hexanaphthene total amount 50%, be cooled to 8-10 ℃ then, crystallization is filtered, and promptly gets three (1-cyclohexyloxies-2; 2,6,6-tetramethyl--4-oxygen base-piperidyl)-the 1,3,5-triazines product.The temperature of said oxidizing reaction is 85-100 ℃.The time of said oxidizing reaction is 12-20h.Said catalyzer is sodium hydroxide or Pottasium Hydroxide or sodium hydride, preferred sodium hydroxide.Said catalyzer is molybdic oxide or Vanadium Pentoxide in FLAKES or chromium sesquioxide or tungstic oxide or Manganse Dioxide, preferred molybdic oxide.
Embodiment 1:
In the four-hole boiling flask of 500mL, add three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine 54.7g, hexanaphthene 336.6g, catalyzer 0.4g after the dissolving, loads onto reflux condensing tube, TM fully; Agitator drips 85-100 ℃ of tertbutyl peroxide 108.1g controlled oxidation temperature of reaction in the 10h, insulation reaction 2-10h, and reaction removes by filter catalyzer after finishing; Organic phase after the filtration is carried out underpressure distillation, distills out the hexanaphthene and the by product trimethyl carbinol of hexanaphthene total amount 50%, is cooled to 8-10 ℃ then, crystallization; Filter, promptly get three (1-cyclohexyloxy-2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and the 1,3,5-triazines product, product yield is 95.01%.
Embodiment 2:
In the four-hole boiling flask of 500mL, add three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine 54.7g, hexanaphthene 420.8g, catalyzer 0.6g after the dissolving, loads onto reflux condensing tube, TM fully; Agitator drips 85-100 ℃ of tertbutyl peroxide 108.1g controlled oxidation temperature of reaction in the 10h, insulation reaction 2-10h, and reaction removes by filter catalyzer after finishing; Organic phase after the filtration is carried out underpressure distillation, distills out the hexanaphthene and the by product trimethyl carbinol of hexanaphthene total amount 50%, is cooled to 8-10 ℃ then, crystallization; Filter, promptly get three (1-cyclohexyloxy-2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and the 1,3,5-triazines product, product yield is 96.25%.
Embodiment 3:
In the four-hole boiling flask of 500mL, add three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine 54.7g, hexanaphthene 673.3g, catalyzer 1.5g after the dissolving, loads onto reflux condensing tube, TM fully; Agitator drips 85-100 ℃ of tertbutyl peroxide 108.1g controlled oxidation temperature of reaction in the 10h, insulation reaction 2-10h, and reaction removes by filter catalyzer after finishing; Organic phase after the filtration is carried out underpressure distillation, distills out the hexanaphthene and the by product trimethyl carbinol of hexanaphthene total amount 50%, is cooled to 8-10 ℃ then, crystallization; Filter, promptly get three (1-cyclohexyloxy-2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and the 1,3,5-triazines product, product yield is 96.47%.
Embodiment 4:
In the four-hole boiling flask of 500mL, add three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine 54.7g, hexanaphthene 336.6g, catalyzer 0.8g after the dissolving, loads onto reflux condensing tube, TM fully; Agitator drips 85-100 ℃ of tertbutyl peroxide 162.2g controlled oxidation temperature of reaction in the 10h, insulation reaction 2-10h, and reaction removes by filter catalyzer after finishing; Organic phase after the filtration is carried out underpressure distillation, distills out the hexanaphthene and the by product trimethyl carbinol of hexanaphthene total amount 50%, is cooled to 8-10 ℃ then, crystallization; Filter, promptly get three (1-cyclohexyloxy-2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and the 1,3,5-triazines product, product yield is 95.78%.
Embodiment 5:
In the four-hole boiling flask of 500mL, add three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3,5-triazine 54.7g, hexanaphthene 420.8g, catalyzer 1.0g after the dissolving, loads onto reflux condensing tube, TM fully; Agitator drips 85-100 ℃ of tertbutyl peroxide 135.2g controlled oxidation temperature of reaction in the 10h, insulation reaction 2-10h, and reaction removes by filter catalyzer after finishing; Organic phase after the filtration is carried out underpressure distillation, distills out the hexanaphthene and the by product trimethyl carbinol of hexanaphthene total amount 50%, is cooled to 8-10 ℃ then, crystallization; Filter, promptly get three (1-cyclohexyloxy-2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and the 1,3,5-triazines product, product yield is 96.61%.
The present invention synthesizes three (1-cyclohexyloxy-2,2,6,6-tetramethyl-s-4-oxygen base-piperidyl)-1; 3, the 5-triazine, it is simple to separate purification process, and the reaction times is short; Product yield reaches more than 95%, and product purity is higher, less energy consumption; Environmental pollution is little, and cost is low, is the comparatively ideal technology that realizes suitability for industrialized production.

Claims (5)

1. the preparation method of a photostabilizer three (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines; It is characterized in that: with three (2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3; 5-triazine, hexanaphthene, tertbutyl peroxide are raw material, under the condition that catalyzer exists, oxidizing reaction take place, and reaction removes by filter catalyzer after finishing, and the organic phase after the filtration is carried out underpressure distillation; Distill out the hexanaphthene of hexanaphthene total amount 50%, be cooled to 8-10 ℃ then, crystallization is filtered, and promptly gets three (1-cyclohexyloxies-2; 2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines.
2. photostabilizer three according to claim 1 (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1; 3, the 5-triazine is characterized in that: said three (2,2; 6,6-tetramethyl--4-oxygen base-piperidyl)-1,3; 5-triazine, hexanaphthene, tertbutyl peroxide, catalyst consumption ratio are counted by quality: three (2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-and 1,3,5-triazines: hexanaphthene: tertbutyl peroxide: catalyzer=1:6.16 ~ 12.32:1.98 ~ 4.12:0.007 ~ 0.05.
3. photostabilizer three according to claim 1 and 2 (1-cyclohexyloxy-2,2,6; 6-tetramethyl--4-oxygen base-piperidyl)-1; 3, the 5-triazine is characterized in that: said catalyzer is molybdic oxide or Vanadium Pentoxide in FLAKES or chromium sesquioxide or tungstic oxide or Manganse Dioxide.
4. according to the preparation method of the said photostabilizer three of claim 3 (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines, it is characterized in that: said catalyzer is a molybdic oxide.
5. according to the preparation method of the said photostabilizer three of claim 1 (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines, it is characterized in that: the temperature of said oxidizing reaction is 85-100 ℃, and the time of oxidizing reaction is 12-20h.
CN201210202376.1A 2012-06-19 2012-06-19 The preparation method of photostabilizer three (1-cyclohexyloxy-2,2,6,6-tetramethyl--4-oxygen base-piperidyl)-1,3,5-triazines Active CN102702174B (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN105348525A (en) * 2015-10-19 2016-02-24 北京天罡助剂有限责任公司 Low-alkalinity polymeric hindered amine light stabilizing agent and preparation method thereof
WO2020259195A1 (en) * 2019-06-25 2020-12-30 北京天罡助剂有限责任公司 Polymeric polymer sterically hindered amine and preparation method therefor

Citations (1)

* Cited by examiner, † Cited by third party
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CN101570507A (en) * 2008-04-28 2009-11-04 大丰市天生化学工业有限公司 Process for preparing bi-(n-octyloxy-2,2,6,6-tetramethyl-piperidyl) diester sebacate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101570507A (en) * 2008-04-28 2009-11-04 大丰市天生化学工业有限公司 Process for preparing bi-(n-octyloxy-2,2,6,6-tetramethyl-piperidyl) diester sebacate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105348525A (en) * 2015-10-19 2016-02-24 北京天罡助剂有限责任公司 Low-alkalinity polymeric hindered amine light stabilizing agent and preparation method thereof
WO2020259195A1 (en) * 2019-06-25 2020-12-30 北京天罡助剂有限责任公司 Polymeric polymer sterically hindered amine and preparation method therefor

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