JPH10218821A - Production of fluorine-containing ether - Google Patents

Production of fluorine-containing ether

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Publication number
JPH10218821A
JPH10218821A JP3992797A JP3992797A JPH10218821A JP H10218821 A JPH10218821 A JP H10218821A JP 3992797 A JP3992797 A JP 3992797A JP 3992797 A JP3992797 A JP 3992797A JP H10218821 A JPH10218821 A JP H10218821A
Authority
JP
Japan
Prior art keywords
formula
general formula
ether
lower alkyl
alkyl group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3992797A
Other languages
Japanese (ja)
Other versions
JP2903494B2 (en
Inventor
Naokado Takada
直門 高田
Etsuo Fujimoto
悦男 藤本
Tetsuya Suzuta
哲也 鈴田
Takashi Abe
隆 阿部
Akira Sekiya
章 関屋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHIKYU KANKYO SANGYO GIJUTSU
CHIKYU KANKYO SANGYO GIJUTSU KENKYU KIKO
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
CHIKYU KANKYO SANGYO GIJUTSU
CHIKYU KANKYO SANGYO GIJUTSU KENKYU KIKO
Agency of Industrial Science and Technology
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Application filed by CHIKYU KANKYO SANGYO GIJUTSU, CHIKYU KANKYO SANGYO GIJUTSU KENKYU KIKO, Agency of Industrial Science and Technology filed Critical CHIKYU KANKYO SANGYO GIJUTSU
Priority to JP3992797A priority Critical patent/JP2903494B2/en
Publication of JPH10218821A publication Critical patent/JPH10218821A/en
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Publication of JP2903494B2 publication Critical patent/JP2903494B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To produce a fluorine-containing ether in high yield by reacting an alkoxide with a specified alkylation reagent in an aprotic solvent. SOLUTION: A perfluoro-t-butylalkoxide of the formula (CF3 )3 C-OM (M is an alkali), [e.g. (CF3 )3 C-ONa] is reacted with an alkylating agent having a lower alkyl group (e.g. dialkyl sulfate) in an aprotic organic solvent (e.g. a dialkyl ether of polyethylene glycol) to provide the objective compound of the formula (CF3 )3 C-OR<1> (R<1> is a lower alkyl). The reaction is preferably carried out at 0-150 deg.C and the using amount of the alkylation agent is preferably 1-4mol per mol of (CF3 )3 C-OM. The compound of the fluoirne-containng ether of the formula (CF3 )3 C-OR<1> in which R<1> is ethyl or n-propyl is a new one.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はパーフルオロ−t−
ブチル基を有する含フッ素エーテルの製造方法及び含フ
ッ素エーテルに関するものである。
TECHNICAL FIELD The present invention relates to a perfluoro-t-
The present invention relates to a method for producing a fluorinated ether having a butyl group and a fluorinated ether.

【0002】[0002]

【従来の技術】パーフルオロ−t−ブチル基[(C
33C−]を有する含フッ素エーテルの合成法として
は、(CF33COHgClとCH3Iとを反応させて
(CF33COCH3を合成する方法が知られている
(Journal of Fluorine Chem
istry,11(1978)327〜335)。しか
しながら、この方法は、水銀を用いることから、工業的
方法としては好ましいものではない。
2. Description of the Related Art A perfluoro-t-butyl group [(C
As a method for synthesizing a fluorinated ether having (F 3 ) 3 C—], a method is known in which (CF 3 ) 3 COHgCl is reacted with CH 3 I to synthesize (CF 3 ) 3 COCH 3 ( Journal of Fluorine Chem
, 11 (1978) 327-335). However, this method is not preferable as an industrial method because it uses mercury.

【0003】[0003]

【発明が解決しようとする課題】本発明は、パーフルオ
ロ−t−ブチル基を有する含フッ素エーテルを効率よく
製造する方法及び含フッ素エーテルを提供することをそ
の課題とする。
An object of the present invention is to provide a method for efficiently producing a fluorine-containing ether having a perfluoro-t-butyl group and a fluorine-containing ether.

【0004】[0004]

【課題を解決するための手段】本発明者らは、前記課題
を解決すべく鋭意研究を重ねた結果、本発明を完成する
に至った。即ち、本発明によれば、下記一般式(1)
Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have completed the present invention. That is, according to the present invention, the following general formula (1)

【化1】 (式中、R1は低級アルキル基を示す)で表される含フ
ッ素エーテルを製造する方法において、下記一般式
(2)
Embedded image (Wherein R 1 represents a lower alkyl group) in a method for producing a fluorinated ether represented by the following general formula (2):

【化2】 (式中、Mはアルカリ金属を示す)で表されるアルコキ
シドを、非プロトン性溶媒中で、低級アルキル基Rを有
するアルキル化剤と反応させることを特徴とする前記の
方法が提供される。また、本発明によれば、下記一般式
(4)
Embedded image (Wherein M represents an alkali metal). The method as described above, wherein an alkoxide represented by the formula: is reacted with an alkylating agent having a lower alkyl group R in an aprotic solvent. Further, according to the present invention, the following general formula (4)

【化4】 (式中、R4はエチル基又はn−プロピル基を示す)で
表される含フッ素エーテルが提供される。
Embedded image (Wherein R 4 represents an ethyl group or an n-propyl group).

【0005】[0005]

【発明の実施の形態】本発明の製造目的化合物は、前記
一般式(1)で表されるパーフルオロ−t−ブチル基を
有する含フッ素エーテルである。この一般式(1)にお
いて、R1は低級アルキル基であり、その炭素数は6以
下、好ましくは1〜4である。R1の具体例としては、
CH3−、C25−、n−C37−、i−C37−、n
−C49−、i−C49−、t−C49−等が挙げられ
る。
BEST MODE FOR CARRYING OUT THE INVENTION The production target compound of the present invention is a fluorine-containing ether having a perfluoro-t-butyl group represented by the aforementioned general formula (1). In the general formula (1), R 1 is a lower alkyl group having 6 or less carbon atoms, preferably 1-4. Specific examples of R 1 include:
CH 3 -, C 2 H 5 -, n-C 3 H 7 -, i-C 3 H 7 -, n
-C 4 H 9 -, i- C 4 H 9 -, t-C 4 H 9 - , and the like.

【0006】本発明においては、反応原料として前記一
般式(2)で表されるパーフルオロ−t−ブチルアルコ
キシドを用いる。この一般式(2)において、MはN
a、K、Li等のアルカリ金属を示す。本発明では、特
に、(CF33C−ONaの使用が好ましい。
In the present invention, perfluoro-t-butyl alkoxide represented by the general formula (2) is used as a reaction raw material. In this general formula (2), M is N
a, K, and alkali metals such as Li. In the present invention, it is particularly preferable to use (CF 3 ) 3 C-ONa.

【0007】前記パーフルオロ−t−ブチルアルコキシ
ドは、パーフルオロ−t−ブチルアルコールとアルカリ
金属水酸化物とを反応させることにより得ることができ
る。この場合の反応は次式で表される。
The above-mentioned perfluoro-t-butyl alkoxide can be obtained by reacting perfluoro-t-butyl alcohol with an alkali metal hydroxide. The reaction in this case is represented by the following equation.

【化5】 (式中、Mはアルカリ金属を示す)前記反応は−10〜
50℃、好ましくは−5〜5℃で実施される。反応溶媒
としては、MOHを溶解するものであれば任意のものが
使用可能であるが、通常は水が用いられる。
Embedded image Wherein M represents an alkali metal.
It is carried out at 50C, preferably at -5 to 5C. Any solvent can be used as the reaction solvent as long as it can dissolve MOH, but water is usually used.

【0008】本発明の方法を実施するには、非プロトン
性溶媒中において、前記一般式(2)で表されるパーフ
ルオロ−t−ブチルアルコキシドとアルキル化剤とを反
応させる。この場合の反応式を、アルキル化剤としてハ
ロゲン化アルキルを用いた場合について示すと、以下の
通りである。
[0008] To carry out the method of the present invention, the perfluoro-t-butylalkoxide represented by the general formula (2) is reacted with an alkylating agent in an aprotic solvent. The reaction formula in this case is as follows when an alkyl halide is used as the alkylating agent.

【化6】 (式中、R1及びMは前記と同じ意味を示し、Xはハロ
ゲンを示す)
Embedded image (Wherein, R 1 and M have the same meaning as described above, and X represents halogen)

【0009】本発明で用いるアルキル化剤は、前記一般
式(1)におけるアルキル基R1に対応するアルキル基
を有するもので、塩素化物(R1−Cl)や、臭素化物
(R1−Br)、硫酸エステル(R1O−SO2−OR)
(式中、Rはアルキル基を示す)等が包含される。これ
らのアルキル化剤の具体例としては、ジアルキル硫酸、
パラトルエンスルホン酸アルキル、アルキル−トリフル
オロメタンスルホネート、トリフルオロメタンスルホン
酸アルキル(トリフラート)、メタンスルホン酸アルキ
ル(メシラート)等が挙げられる。
The alkylating agent used in the present invention has an alkyl group corresponding to the alkyl group R 1 in the general formula (1), and is chlorinated (R 1 -Cl) or brominated (R 1 -Br). ), Sulfate (R 1 O—SO 2 —OR)
(Wherein, R represents an alkyl group) and the like. Specific examples of these alkylating agents include dialkyl sulfate,
Examples thereof include alkyl p-toluenesulfonate, alkyl-trifluoromethanesulfonate, alkyl trifluoromethanesulfonate (triflate), and alkyl methanesulfonate (mesylate).

【0010】本発明で用いる非プロトン性極性有機溶媒
としては、従来公知の各種のものが用いられる。このよ
うなものとしては、例えば、モノグラム、ジグライム、
トリグライム、テトラグライム、ジエチルエーテル、ジ
ブチルエーテル、ジオキサン等のエーテル類、アセトニ
トリル等のニトリル類、ジメチルホルムアミド、ジメチ
ルアセトアミド等の鎖状アミド類、或いは1,3−ジメ
チル−2−イミダゾリジノン、N−メチル−2−ピロリ
ドン等の環状アミド類等が挙げられる。本発明では、特
に、下記一般式(3)で表されるポリエチレングリコー
ルのジアルキルエーテルの使用が好ましい。
As the aprotic polar organic solvent used in the present invention, conventionally known various solvents can be used. Such things include, for example, monogram, diglyme,
Ethers such as triglyme, tetraglyme, diethyl ether, dibutyl ether and dioxane; nitriles such as acetonitrile; chain amides such as dimethylformamide and dimethylacetamide; or 1,3-dimethyl-2-imidazolidinone, N- And cyclic amides such as methyl-2-pyrrolidone. In the present invention, it is particularly preferable to use a dialkyl ether of polyethylene glycol represented by the following general formula (3).

【化3】 前記式中、R2及びR3は低級アルキル基を示し、その炭
素数は1〜3、好ましくは1〜2である。nは1〜1
0、好ましくは3〜5である。本発明においては、特
に、テトラグライム(前記式(3)において、R2及び
3はそれぞれメチル基を示し、nは4の数を示す)の
使用が好ましい。このようなポリエチレングリコールの
ジアルキルエーテルを溶媒として用いるときには、その
配位効果により、(CF33C−OMの溶媒に対する溶
解度が上昇し、反応を効率よく実施することができる。
Embedded image In the above formula, R 2 and R 3 represent a lower alkyl group, and have 1 to 3 carbon atoms, preferably 1 to 2 carbon atoms. n is 1 to 1
0, preferably 3-5. In the present invention, it is particularly preferable to use tetraglyme (in the above formula (3), R 2 and R 3 each represent a methyl group, and n represents a number of 4). When such a dialkyl ether of polyethylene glycol is used as a solvent, the coordination effect increases the solubility of (CF 3 ) 3 C-OM in the solvent, so that the reaction can be carried out efficiently.

【0011】前記反応温度は0〜150℃、好ましくは
室温〜100℃である。前記反応を実施する場合、アル
キル化剤は、アルコキシドを含む溶媒に対し、徐々に滴
下して反応させることが好ましい。アルキル化剤の使用
割合は、(CF33COM 1モル当り、1〜4モル、
好ましくは1〜3モルの割合である。
[0011] The reaction temperature is 0 to 150 ° C, preferably room temperature to 100 ° C. When carrying out the above reaction, it is preferable that the alkylating agent is gradually added dropwise to the solvent containing the alkoxide to cause the reaction. The use ratio of the alkylating agent is 1 to 4 mol per 1 mol of (CF 3 ) 3 COM,
Preferably, the ratio is 1 to 3 mol.

【0012】本発明により得られる前記一般式(4)で
表される特定化合物は新規化合物である。本発明者らの
研究によれば、前記一般式(4)のパーフルオロ−t−
ブチル基を有する含フッ素エーテルは、不燃性を示し、
爆発の危険も少なく、非常に安全性の高い化合物である
ことが確認された。
The specific compound represented by the general formula (4) obtained by the present invention is a novel compound. According to the study of the present inventors, the perfluoro-t-
The fluorinated ether having a butyl group shows nonflammability,
It was confirmed that the compound was very safe with little danger of explosion.

【0013】[0013]

【実施例】次に、本発明を実施例によりさらに詳述す
る。 参考例1 (t−C49ONaの合成)硝子製ラウンドボトムフラ
スコに純水200g、NaOH(1mol、40g)を
仕込み、氷浴中で撹拌した。完全にNaOHが溶解し内
温が5℃以下になったことを確認し、予め水(1mo
l、18g)とt−C49OH(1mol、236g)
を混合した溶液を60分間で滴下した。滴下終了後、氷
浴を外し、室温になるまで撹拌した。その後、減圧乾燥
により水分を除去し、白色の固形物((CF33CON
a)を251g得た。
Next, the present invention will be described in more detail by way of examples. Reference Example 1 (t-C 4 F 9 Synthesis of ONa) pure water 200g glass round bottom flask was charged with NaOH (1 mol, 40 g), was stirred in an ice bath. After confirming that NaOH was completely dissolved and the internal temperature became 5 ° C. or less, water (1 mol
l, 18 g) and t-C 4 F 9 OH ( 1mol, 236g)
Was added dropwise over 60 minutes. After completion of the dropwise addition, the ice bath was removed, and the mixture was stirred until it reached room temperature. Thereafter, moisture was removed by drying under reduced pressure to obtain a white solid ((CF 3 ) 3 CON).
251 g of a) were obtained.

【0014】実施例1 内容積1リットルのSUS製オートクレーブに参考例1
で合成したt−C49ONa(0.1mol、23.6
g)、ジグライム500mlを仕込み、400rpmで
撹拌しながら70℃まで徐々に昇温した。そして、アル
キル化剤であるEt2SO4(0.2mol、30.8
g)を120分間で滴下した。滴下終了後、1時間撹拌
を継続した。反応終了後、フラッシュにて生成物を抜き
だし、ドライアイス−エタノールバスにて回収した。回
収物を19FNMRで分析したところ、97.5%のt−
49OEtと2.5%のt−C49OHが確認され
た。回収物を水洗したあと、ガスクロマトグラフで分析
した結果、その生成物t−C49OEtの純度は99.
9%であり、回収率は60%であった。
Example 1 Reference example 1 was applied to a SUS autoclave having an internal volume of 1 liter.
T-C 4 F 9 ONa (0.1 mol, 23.6)
g) and 500 ml of diglyme, and gradually heated to 70 ° C. while stirring at 400 rpm. Then, Et 2 SO 4 (0.2 mol, 30.8
g) was added dropwise over 120 minutes. After completion of the dropwise addition, stirring was continued for 1 hour. After completion of the reaction, the product was extracted by flash and collected in a dry ice-ethanol bath. The recovered product was analyzed by 19 F NMR to find that 97.5% of t-
C 4 F 9 OEt and 2.5% t-C 4 F 9 OH was confirmed. The collected product was washed with water and analyzed by gas chromatography. As a result, the purity of the product t-C 4 F 9 OEt was 99.
9% and the recovery was 60%.

【0015】実施例2 溶媒をテトラグライムに変更した以外、実施例2と同様
に実験を行った。水洗後の生成物の純度は99.9%で
あり、回収率は93%であった。
Example 2 An experiment was conducted in the same manner as in Example 2 except that the solvent was changed to tetraglyme. The purity of the product after washing with water was 99.9%, and the recovery was 93%.

【0016】実施例3 アルキル化剤をMe2SO4(0.2mol、25.2
g)に変更した以外、実施例3と同様にして実験を行っ
た。水洗後の生成物の純度は99.9%であり、回収率
は93%であった。
Example 3 The alkylating agent was Me 2 SO 4 (0.2 mol, 25.2)
The experiment was carried out in the same manner as in Example 3 except that g) was changed. The purity of the product after washing with water was 99.9%, and the recovery was 93%.

【0017】[0017]

【発明の効果】本発明によれば、パーフルオロ−t−ブ
チル基を有する前記一般式(1)の含フッ素エーテルを
高純度でかつ収率よくかつ安全に製造することができ
る。
According to the present invention, the fluorinated ether having a perfluoro-t-butyl group represented by the general formula (1) can be produced with high purity, high yield, and safety.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤本 悦男 東京都文京区本郷2−40−17 本郷若井ビ ル6階財団法人地球環境産業技術研究機構 新規冷媒等プロジェクト室内 (72)発明者 鈴田 哲也 東京都文京区本郷2−40−17 本郷若井ビ ル6階財団法人地球環境産業技術研究機構 新規冷媒等プロジェクト室内 (72)発明者 阿部 隆 愛知県名古屋市北区平手町1丁目 名古屋 工業技術研究所内 (72)発明者 関屋 章 茨城県つくば市東1丁目1番 工業技術院 物質工学工業技術研究所内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Etsuo Fujimoto 2-40-17 Hongo, Bunkyo-ku, Tokyo Hongo Wakai Building 6F, New Refrigerant Project Room, etc. (72) Inventor Tetsuya Suzuda 6F, Hongo Wakai Building, 2-40-17 Hongo, Bunkyo-ku, Tokyo New Technology Refrigerant Project Room (72) Inventor Takashi Abe 1-chome Hirate-cho, Kita-ku, Nagoya-shi, Aichi Nagoya Industrial Technology Research (72) Inventor Akira Sekiya 1-1-1, Higashi, Tsukuba, Ibaraki Pref.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 下記一般式(1) 【化1】 (式中、R1は低級アルキル基を示す)で表される含フ
ッ素エーテルを製造する方法において、下記一般式
(2) 【化2】 (式中、Mはアルカリ金属を示す)で表されるアルコキ
シドを、非プロトン性溶媒中で、低級アルキル基R1
有するアルキル化剤と反応させることを特徴とする前記
の方法。
[Claim 1] The following general formula (1) (Wherein, R 1 represents a lower alkyl group) in a method for producing a fluorinated ether represented by the following general formula (2): Wherein the alkoxide represented by the formula (wherein M represents an alkali metal) is reacted with an alkylating agent having a lower alkyl group R 1 in an aprotic solvent.
【請求項2】 該非プロトン性溶媒が、下記一般式
(3) 【化3】 (式中、R2及びR3は低級アルキル基を示し、nは2〜
6の数を示す)で表されるポリエチレングリコールジエ
ステルである請求項1の方法。
2. The aprotic solvent is represented by the following general formula (3): (Wherein, R 2 and R 3 represent a lower alkyl group, and n is 2 to
The method according to claim 1, which is a polyethylene glycol diester represented by the following formula:
【請求項3】 下記一般式(4) 【化4】 (式中、R4はエチル基又はn−プロピル基を示す)で
表される含フッ素エーテル。
3. The following general formula (4): (Wherein, R 4 represents an ethyl group or an n-propyl group).
JP3992797A 1997-02-07 1997-02-07 Method for producing fluorinated ether Expired - Lifetime JP2903494B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3992797A JP2903494B2 (en) 1997-02-07 1997-02-07 Method for producing fluorinated ether

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3992797A JP2903494B2 (en) 1997-02-07 1997-02-07 Method for producing fluorinated ether

Publications (2)

Publication Number Publication Date
JPH10218821A true JPH10218821A (en) 1998-08-18
JP2903494B2 JP2903494B2 (en) 1999-06-07

Family

ID=12566580

Family Applications (1)

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Country Status (1)

Country Link
JP (1) JP2903494B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002968A (en) * 2019-04-28 2019-07-12 北京宇极科技发展有限公司 The preparation method of fluorine-containing ether

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002968A (en) * 2019-04-28 2019-07-12 北京宇极科技发展有限公司 The preparation method of fluorine-containing ether
CN110002968B (en) * 2019-04-28 2022-04-08 泉州宇极新材料科技有限公司 Method for preparing fluorine-containing ether

Also Published As

Publication number Publication date
JP2903494B2 (en) 1999-06-07

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