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CN108690073A - [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid - Google Patents

[Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid Download PDF

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Publication number
CN108690073A
CN108690073A CN201810679850.7A CN201810679850A CN108690073A CN 108690073 A CN108690073 A CN 108690073A CN 201810679850 A CN201810679850 A CN 201810679850A CN 108690073 A CN108690073 A CN 108690073A
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Prior art keywords
bis
linji
yang
acetic acid
trifluoro ethoxies
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CN201810679850.7A
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Inventor
李苏杨
徐勤霞
成清明
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Suzhou Bec Biological Technology Co Ltd
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Suzhou Bec Biological Technology Co Ltd
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    • 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
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/40Esters thereof
    • C07F9/4003Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
    • C07F9/4006Esters of acyclic acids which can have further substituents on alkyl

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses Yi Zhong [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, includes the following steps:[Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate is dissolved in organic solvent, is cooled to -50 DEG C to -80 DEG C, and the mixed solution of tetrahydrofuran/water of alkali is added dropwise, is stirred to react, by adjusting acid, organic solvent extraction and column purification get Dao &#91 after the completion of reaction;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Acetic acid.This method is simple and easy to do, and cost is controllable, is suitable for industrialized production.

Description

[Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid
Technical field
The present invention relates to organic synthesis fields more particularly to organic drug to synthesize field ,Ju Tisheji [Bis- (2,2,2- tri- Fluorine ethyoxyl) Yang Linji ]The synthetic method of acetic acid.
Background technology
[Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Acetic acid is the important intermediate of synthesizing cis double bond, is synthesized at present [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]There are mainly three types of the methods of acetic acid.
Method one:As shown in formula (one), this method has three steps, and final step is hydrogenation, more special to equipment requirement, is put There is certain danger greatly, and reagent cost includes that palladium carbon is all more expensive.Three step total recoverys of document report are about 50% or so.
Method two:As shown in formula (two), this method has two steps, prepares that atmospheric carbon dioxide is comparatively laborious, the dioxy of preparation The moisture for changing carbon or the carbon dioxide of purchase needs to re-scale, and data are shown, the moisture of carbon dioxide increases, the receipts of final product Rate can have a greatly reduced quality, and two step total recoverys of document report are about 40% or so.
Method three:As shown in formula (three), although this method only step, domestic pork liver enzyme purchase is difficult, and reagent Costliness, the order cycle time is very long, and cost is very high.
[Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Acetic acid is the important intermediate of synthesizing cis double bond, ready-made at present Method Shi Duo Walk reaction, such as the synthetic method of formula (one) and (two), cost is generally higher, operates relatively difficult or to equipment Have particular/special requirement, formula (three) although shown in synthetic method only single step reaction, the purchase of pork liver enzyme is difficult at home, not only purchases It is very long to buy the period, and reagent is very expensive.
In order to solve problem above, we by experimental design and put into practice and optimize the present invention.
Invention content
The technical problem to be solved in the present invention is to provide Yi Zhong [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The conjunction of acetic acid At method, this method is simple and easy to do.
To realize above-mentioned target, present invention employs following technical schemes:
The present invention provides Yi Zhong [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, including following step Suddenly:Under atmosphere of inert gases, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate is dissolved in organic solvent, drop Temperature is added dropwise the mixed solution of tetrahydrofuran/water of alkali, is stirred to react to -50 DEG C to -80 DEG C, get Dao &#91 after the completion of reaction;Bis- (2, 2,2- trifluoro ethoxies) Yang Linji ]Acetic acid.
Further, reaction temperature is -60 DEG C to -78 DEG C
Further , [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The molar ratio of methyl acetate and alkali is 1:0.8-1:1.
Preferably , [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The molar ratio of methyl acetate and alkali is 1:0.9.
Further, organic solvent is methanol, ethyl alcohol, tetrahydrofuran, methyl tertiary butyl ether(MTBE) or acetone.
Preferably, organic solvent is tetrahydrofuran or acetone.
Further, the dosage dosage &#91 of organic solvent;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The mass ratio of acetic acid is 25:1 to 50:1.
Preferably, the dosage dosage &#91 of organic solvent;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The mass ratio of acetic acid is 40:1 To 45:1.
Further, inert gas is argon gas, nitrogen or helium.
Further, alkali is sodium bicarbonate or saleratus.
Still further, the time that the mixed solution of tetrahydrofuran/water of alkali is added dropwise is 3-10 hours.
Preferably, the time that the mixed solution of tetrahydrofuran/water of alkali is added dropwise is 8-10 hours.
Further, the volume ratio of the mixed solution of tetrahydrofuran/water is tetrahydrofuran:Water=1:1-3:1.
Preferably, the volume ratio of the mixed solution of tetrahydrofuran/water is tetrahydrofuran:Water=1:1.
Further, the time being stirred to react is 10-24 hours.
Preferably, the time being stirred to react is 18-24 hours.
Further, after the completion of reaction, pass through acidification, extraction and column purification get Dao [Bis- (2,2,2- trifluoro ethoxies) oxygen Lin Ji ]Acetic acid.
Further, extraction organic solvent is ethyl acetate, dichloromethane, methyl tertiary butyl ether(MTBE) or tetrahydrofuran.
Preferably, extraction organic solvent is ethyl acetate or dichloromethane.
Compared with prior art, the present invention has the following advantages:The present invention synthesizes &#91 by easy-to-use method;Bis- (2, 2,2- trifluoro ethoxies) Yang Linji ]Acetic acid does not need Duo Walk reactions, need not be hydrolyzed in buffer solution with pork liver enzyme, pig yet Liver enzyme is difficult to buy, thus be easier to operate to, it can be achieved that industrialization meaning at home.
Specific implementation mode
The present invention is further explained in the light of specific embodiments, so that those skilled in the art can be preferably Understand the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Embodiment 1
Under nitrogen protection, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate (6.22g, 0.01mol) dissolves It in tetrahydrofuran (50 times), is cooled to -80 DEG C, sodium bicarbonate is slowly added dropwise (0.67g, 0.08mol are dripped off for about 3 hours) Tetrahydrofuran/water (1:1) after, being added dropwise, the reaction was continued at such a temperature 10 hours, after the completion of reaction, adjusts acid, uses acetic acid Three times, after removing organic solvent under reduced pressure, column purification obtains Bai Seguti &#91 to ethyl ester aqueous phase extracted;Bis- (2,2,2- trifluoro ethoxies) phosphine oxides Ji ]Acetic acid (1.52g).
Embodiment 2
Under nitrogen protection, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate (6.22g, 0.01mol) dissolves In ethyl alcohol (25 times), -50 DEG C are cooled to, the tetrahydrochysene of saleratus (0.9g, 0.9mol are dripped off for about 10 hours) is slowly added dropwise Furans/water (2:1) after, being added dropwise, the reaction was continued at such a temperature 24 hours, after the completion of reaction, adjusts acid, is extracted with ethyl acetate Mutually three times, after removing organic solvent under reduced pressure, column purification obtains Bai Seguti &#91 for water intaking;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Second Sour (1.17g).
Embodiment 3
Under nitrogen protection, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate (6.22g, 0.01mol) dissolves In methyl tertiary butyl ether(MTBE) (45 times), -75 DEG C are cooled to, sodium bicarbonate is slowly added dropwise, and (0.84g, 1.0mol drip for about 8 hours It is complete) tetrahydrofuran/water (3:1) after, being added dropwise, the reaction was continued at such a temperature 18 hours, after the completion of reaction, adjusts acid, uses Three times, after removing organic solvent under reduced pressure, column purification obtains Bai Seguti &#91 to ethyl acetate aqueous phase extracted;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Acetic acid (1.38g).
Embodiment 4
Under nitrogen protection, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate (6.22g, 0.01mol) dissolves In acetone (40 times), -75 DEG C are cooled to, the tetrahydrochysene of sodium bicarbonate (0.77g, 0.9mol are dripped off for about 8 hours) is slowly added dropwise Furans/water (1:1) after, being added dropwise, the reaction was continued at such a temperature 18 hours, after the completion of reaction, adjusts acid, is extracted with ethyl acetate Mutually three times, after removing organic solvent under reduced pressure, column purification obtains Bai Seguti &#91 for water intaking;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Second Sour (1.91g).
Embodiment 5
Under nitrogen protection, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate (6.22g, 0.01mol) dissolves It in tetrahydrofuran (40 times), is cooled to -75 DEG C, sodium bicarbonate is slowly added dropwise (0.77g, 0.9mol are dripped off for about 8 hours) Tetrahydrofuran/water (1:1) after, being added dropwise, the reaction was continued at such a temperature 18 hours, after the completion of reaction, acid is adjusted, with acetic acid second Three times, after removing organic solvent under reduced pressure, column purification obtains Bai Seguti &#91 to ester aqueous phase extracted;Bis- (2,2,2- trifluoro ethoxies) phosphine oxides Ji ]Acetic acid (2.32g).
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention It encloses without being limited thereto.Those skilled in the art on the basis of the present invention made by equivalent substitute or transformation, in the present invention Protection domain within.Protection scope of the present invention is subject to claims.

Claims (10)

1. Yi Zhong [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, which is characterized in that include the following steps: Under atmosphere of inert gases, by [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Methyl acetate is dissolved in organic solvent, be cooled to- 50 DEG C to -80 DEG C, the mixed solution of tetrahydrofuran/water of alkali is added dropwise, is stirred to react, get Dao &#91 after the completion of reaction;Bis- (2,2,2- tri- Fluorine ethyoxyl) Yang Linji ]Acetic acid.
2. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, it is characterised in that: [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The molar ratio of methyl acetate and alkali is 1:0.8-1:1.
3. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The synthetic method of acetic acid, it is characterised in that: The organic solvent is methanol, ethyl alcohol, tetrahydrofuran, methyl tertiary butyl ether(MTBE) or acetone.
4. the &#91 as described in claim 1 or 3;Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The synthetic method of acetic acid, feature exist In:The organic solvent organic solvent [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The mass ratio of acetic acid is
25:1 to 50:1.
5. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, it is characterised in that: The inert gas is argon gas, nitrogen or helium.
6. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, it is characterised in that: The alkali is sodium bicarbonate or saleratus.
7. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, it is characterised in that: The time that the mixed solution of tetrahydrofuran/water of the alkali is added dropwise is 3-10 hours.
8. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, it is characterised in that: The volume ratio of the mixed solvent of the tetrahydrofuran/water is tetrahydrofuran:Water=1:1-3:1.
9. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, it is characterised in that: The time being stirred to react is 10-24 hours.
10. Ru Quanliyaoqiu1Suo Shu [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid, feature exist In:After the completion of reaction, pass through acidification, extraction and column purification get Dao [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]Acetic acid.
CN201810679850.7A 2018-06-27 2018-06-27 [Bis- (2,2,2- trifluoro ethoxies) Yang Linji ]The preparation method of acetic acid Withdrawn CN108690073A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005030779A2 (en) * 2003-09-23 2005-04-07 Eisai Co. Ltd. Laulimalide analogs with anti-cancer activitity

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005030779A2 (en) * 2003-09-23 2005-04-07 Eisai Co. Ltd. Laulimalide analogs with anti-cancer activitity

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ADAM D. BROOKS ET AL.: "Design, Synthesis, and Characterization of Small-Molecule Reagents That Cooperatively Provide Dual Readouts for Triaging and, When Necessary, Quantifying Point-of-Need Enzyme Assays", 《THE JOURNAL OF ORGANIC CHEMISTRY》 *
SAMIA GUEZANE LAKOUD ET AL.: "Synthesis of chiral phosphonoacetamides and their toxic effects on Paramecium sp", 《ORGANIC COMMUNICATIONS》 *

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