CN1034804C - Synthesis method of diphenyl sulfone tetracarboxylic acid - Google Patents

Synthesis method of diphenyl sulfone tetracarboxylic acid Download PDF

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CN1034804C
CN1034804C CN90109003A CN90109003A CN1034804C CN 1034804 C CN1034804 C CN 1034804C CN 90109003 A CN90109003 A CN 90109003A CN 90109003 A CN90109003 A CN 90109003A CN 1034804 C CN1034804 C CN 1034804C
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Prior art keywords
diphenyl sulfone
tetracid
diphenyl
hydrogen peroxide
water
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CN90109003A
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CN1061219A (en
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丁孟贤
杨正华
张劲
王绪强
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Changchun Institute of Applied Chemistry of CAS
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Changchun Institute of Applied Chemistry of CAS
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Abstract

The present invention belongs to a synthetic method of diphenyl sulfone tetraformic acid and its derivative. The invention uses excessive 30% hydrogen peroxide as oxidant and water as medium, under reflux temperature, diphenyl sulfide tetracid is directly made into diphenyl sulfone tetracid. The yield can reach more than 87 percent, and the purity is high.

Description

The synthetic method of diphenyl sulfone tetraformic acid
The invention belongs to the synthetic method of diphenyl sulfone tetraformic acid and derivative thereof.
Diphenyl sulfone tetraformic acid is the raw material of polyimide high-temperature polymer, also can be used as curing agent for epoxy resin etc.
The sulfobenzide tetracid can be made by corresponding tetramethyl diphenyl sulfone oxidation, also can be made by the oxidation of corresponding diphenyl sulfide tetracid.GE (US.APPL684,392) has reported with the diphenyl sulfide tetracid and prepared the sulfobenzide tetracid under 3% hydrogen peroxide effect, but product is the mixture of sulfobenzide tetracid and thionyl benzene tetracid.(US.4,609,712) have also been reported with excessive 5~15 equivalents, 30% hydrogen peroxide, the method for oxidation in the presence of acetic acid, and think that this oxidizing reaction undertaken by Peracetic Acid.
The shortcoming of next two kinds of methods is: product is impure, is the mixture of two kinds of tetracids, perhaps needs acetic acid to participate in reaction, and oxygenant is a peroxidation acetic acid, so need big excessive hydrogen peroxide.Simultaneously, because the existence of acetic acid is arranged, also make troubles for the separation of product.
The objective of the invention is with excessive 30% about one times hydrogen peroxide is oxygenant, and water is medium, under reflux temperature, directly makes high yield by the diphenyl sulfide tetracid, highly purified diphenyl sulfone tetraformic acid.
Synthesis step of the present invention is as follows:
Figure C9010900300031
Diphenyl thio-ether tetrformate can be 3.3 ', 4.4 '-2.2 ', 3.3 '-or 2.3 ', 3.4 '-isomer.
Only reaction conditions is: based on every gram diphenyl sulfide tetracid, and 3~5 milliliters in water, hydrogen peroxidase 10 .6~1.2 milliliter, return time is 20 minutes~1 hour.Product is purified with sublimation method.Productive rate can reach more than 87%.It is synthetic that this product can be directly used in polyimide.
Embodiments of the invention are as follows:
Embodiment 1:
With 15 grams, 3.3 ', 4.4 '-diphenyl sulfide returns acid and is dissolved in 50 milliliters of boiling water, adds 12 grams, 30% hydrogen peroxide, refluxed 1 hour, after the water evaporation, residue is at 340-360 ℃, and 0.01 mmhg distils down, get 13 gram diphenyl sulfone dianhydride, mp.292-294 ℃, yield 87.8%.
Embodiment 2:
Except the consumption of hydrogen peroxide is 10.5 milliliters, all the other conditions are with embodiment 1, mp288-294 ℃ of gained dianhydride, yield: 87.8%.
Embodiment 3:
With 15 the gram 3.3 ', 4.4 '-diphenyl sulfide tetracid and 12 milliliter of 30% hydrogen peroxide and 20 ml water reflux 30 minutes, filtered while hot is removed a small amount of insoluble substance, after the cooling, separate out white solid by filtrate, filter, after the drying, at 320-330 ℃, 0.01 mmhg is distillation down, yield 68.0%.
Embodiment 4:
With 15 grams 3.3 ', 4.4 '-hexichol sulfuric acid tetracid, 15 milliliter of 30% hydrogen peroxide stirred under the room temperature 24 hours in 20 ml waters, product still is unreacted diphenyl sulfide tetracid by analysis.
Embodiment 5:
With 12 the gram 2.2 ', 3.3 '-diphenyl sulfide tetracid is dissolved in 50 milliliters of boiling water, add 10 milliliter of 30% hydrogen peroxide, refluxed 1 hour, leach a small amount of insoluble impurity, filtrate being concentrated into separated out crystallization, leach solid after the cooling, with the washing of 3 * 20 ml waters, dry back is heated to 340-360 ℃ of distillation under 0.01 mmhg, get faint yellow crystallization 11.0 grams, yield: 83%.This dianhydride 340 ℃ begin the distillation, to 375 ℃ complete molten.

Claims (2)

1, a kind of synthetic method of diphenyl sulfone tetraformic acid is based on the diphenyl sulfide tetracid, adds excessive hydrogen peroxide, it is characterized in that, with excessive 30% about one times hydrogen peroxide as oxidant, water is medium, under reflux temperature, makes diphenyl sulfone tetraformic acid.
2, synthetic method as claimed in claim 1 is characterized in that, based on every gram diphenyl sulfide tetracid, and 3~5 milliliters in water, hydrogen peroxidase 10 .6~1.2 milliliter, return time is 20 minutes~1 hour.
CN90109003A 1990-11-05 1990-11-05 Synthesis method of diphenyl sulfone tetracarboxylic acid Expired - Fee Related CN1034804C (en)

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CN1034804C true CN1034804C (en) 1997-05-07

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Publication number Priority date Publication date Assignee Title
CN108586297B (en) * 2017-12-13 2021-02-19 广东省石油与精细化工研究院 Method for preparing sulfoxide and sulfone by oxidizing thioether in water phase
CN111187187A (en) * 2020-03-07 2020-05-22 桂林理工大学 Preparation method of 2, 2-bis [4- (4-aminophenylsulfonyl) phenyl ] hexafluoropropane diamine monomer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU582660A1 (en) * 1976-03-24 1978-06-25 Институт Органической Химии Ан Украинской Сср Method of obtaining pentachlorphenylalkylsulfone
US4625013A (en) * 1984-12-20 1986-11-25 General Electric Company Aromatic sulfoxy compositions and method for their preparation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU582660A1 (en) * 1976-03-24 1978-06-25 Институт Органической Химии Ан Украинской Сср Method of obtaining pentachlorphenylalkylsulfone
US4625013A (en) * 1984-12-20 1986-11-25 General Electric Company Aromatic sulfoxy compositions and method for their preparation

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