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A compound and its preparation method and use

A technology for compounds and uses, applied in the field of compounds and their preparation, can solve the problems of low color fixation rate and difficult waste water treatment, and achieve the effects of less by-products and high yield of target products

Active Publication Date: 2022-01-25
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the reactive dyes synthesized by using cyanuric chloride as a dye intermediate often have problems such as low color fixation rate, easy hydrolysis and difficult wastewater treatment.

Method used

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  • A compound and its preparation method and use
  • A compound and its preparation method and use
  • A compound and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Synthesis of compound I

[0068] The synthetic route is as follows:

[0069] 1)

[0070] 2)

[0071] 3)

[0072] 1) Add 181kg of compound A1 in the reactor, according to SOCl 2 The molar ratio with compound A1 is 1:1 SOCl 2 Put it into the reaction kettle, raise the temperature to 125±5°C, and carry out the chloroacylation reaction under the condition of stirring, the reaction time is 12h, the generated HCl and SO 2 The gas is pumped into the collection tank using a vacuum pump, and compound B1 is obtained after the reaction is completed;

[0073] 2) Add the dry compound B1 into the reaction vessel, raise the temperature to 75±5°C, add NaF pre-dissolved and in water into the reaction vessel, react at 75±5°C for 4-5h, and dry the product compound C1 after the reaction Dry; Wherein, the molar ratio of compound B1 and NaF is 1:2.5;

[0074] 3) Add the compound C1 obtained in step 2) into the reaction vessel, add a certain amount of HCl solution to the reacti...

Embodiment 2

[0079] Synthesis of compound II

[0080] The synthetic route is as follows:

[0081] 1)

[0082] 2)

[0083] 3)

[0084] 1) Add 181kg of compound A2 in the reactor, according to SOCl 2 The molar ratio with compound A2 is 1:1 SOCl 2 Put it into the reaction kettle, raise the temperature to 125±5°C, and carry out the chloroacylation reaction under the condition of stirring, the reaction time is 12h, the generated HCl and SO 2 The gas is pumped into the collection tank using a vacuum pump, and compound B2 is obtained after the reaction is completed;

[0085] 2) Add the dried compound B2 into the reaction vessel, raise the temperature to 75±5°C, add NaF pre-dissolved and in water into the reaction vessel, react at 75±5°C for 4-5h, and dry the product compound C2 after the reaction Dry; Wherein, the molar ratio of compound B2 and NaF is 1:2.5;

[0086] 3) Add the compound C2 obtained in step 2) into the reaction vessel, add a certain amount of HCl solution to the rea...

Embodiment 3

[0089] Synthesis of compound III

[0090] The synthetic route is as follows:

[0091] 1)

[0092] 2)

[0093] 3)

[0094] 1) Add 211kg of compound A3 in the reactor, according to SOCl 2 The molar ratio with compound A3 is 1:1 SOCl 2 Put it into the reaction kettle, raise the temperature to 125±5°C, and carry out the chloroacylation reaction under the condition of stirring, the reaction time is 12h, the generated HCl and SO 2 The gas is pumped into the collection tank using a vacuum pump, and compound B3 is obtained after the reaction is completed;

[0095] 2) Add the dried compound B3 into the reaction vessel, raise the temperature to 75±5°C, add NaF pre-dissolved and in water into the reaction vessel, react at 75±5°C for 2-3h, and dry the product compound C3 after the reaction Dry; Wherein, the molar ratio of compound B3 and NaF is 1:1.8;

[0096] 3) Add the compound C3 obtained in step 2) into the reaction vessel, add a certain amount of HCl solution to the re...

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Abstract

The invention provides a compound and its preparation method and application. A kind of compound, has the structure of general formula (I): wherein, R 1 , R 2 , R 3 , R 4 and R 5 At least one of them is amino, and the rest are independently selected from H, halogen, heteroatom substituted or unsubstituted C 1‑20 Hydrocarbyl. The compound has an active group ‑COF, which is easy to react with the active groups (hydroxyl, amino, etc.) strong ability.

Description

technical field [0001] The invention relates to the field of organic synthesis, in particular to a compound and its preparation method and application. Background technique [0002] Introducing reactive groups such as cyanuric chloride into aromatic compound molecules is one of the important methods for the dye industry to prepare dye intermediates. The dyes synthesized with these dye intermediates, because the active groups in the molecular structure can react with the hydroxyl or amino groups on the fibers to form covalent bonds such as C-O or C-N, so that the dye molecules are firmly combined on the fabric. It can be widely used in dyeing in the fields of textile, papermaking and leather. [0003] However, reactive dyes synthesized by using cyanuric chloride as a dye intermediate often have problems such as low color fixation rate, easy hydrolysis and difficult wastewater treatment. The types and properties of intermediate compounds seriously affect the performance and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C229/60C07C227/20C07C229/56C07C229/64C09B62/83D06P1/384
Inventor 童国林史蕊李寿椿
Owner NANJING FORESTRY UNIV