JP2578056B2 - New fluorinated unsaturated carboxylic acid chloride - Google Patents
New fluorinated unsaturated carboxylic acid chlorideInfo
- Publication number
- JP2578056B2 JP2578056B2 JP32277492A JP32277492A JP2578056B2 JP 2578056 B2 JP2578056 B2 JP 2578056B2 JP 32277492 A JP32277492 A JP 32277492A JP 32277492 A JP32277492 A JP 32277492A JP 2578056 B2 JP2578056 B2 JP 2578056B2
- Authority
- JP
- Japan
- Prior art keywords
- acid chloride
- unsaturated carboxylic
- carboxylic acid
- group
- fluorinated unsaturated
- 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.)
- Expired - Lifetime
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、新規含フッ素不飽和カ
ルボン酸クロライドに関する。The present invention relates to a novel fluorine-containing unsaturated carboxylic acid chloride.
【0002】[0002]
【従来の技術】従来、不飽和カルボン酸クロライドとし
ては、例えばアクリル酸クロライド(CAS Registry No.
814-68-6)、メタクリル酸クロライド(CAS Registry N
o.920-46-7)等が知られている。これらは、そのままの
形で或いはエステル、アミド等へ変換した上で、単独重
合や共重合に供されて各種のポリマーの製造に利用され
る。また、マイケル付加、ヒドロシリル化等の付加反応
を利用して各種の誘導体の合成にも使用される。2. Description of the Related Art Conventionally, as unsaturated carboxylic acid chloride, for example, acrylic acid chloride (CAS Registry No.
814-68-6), methacrylic acid chloride (CAS Registry N)
o.920-46-7) and the like are known. These are used as they are or converted into esters, amides or the like, and then subjected to homopolymerization or copolymerization to be used for production of various polymers. It is also used in the synthesis of various derivatives utilizing addition reactions such as Michael addition and hydrosilylation.
【0003】近年、含フッ素有機化合物の合成、応用面
での研究がすすみ、フッ素原子を分子中に導入すること
により、化合物の反応性を著しく変えたり、化合物の安
定性を高め得ることが知られている。例えば医農薬分野
では、生理活性を向上させたり、脂溶性を改善したりす
るのにフッ素が利用されているし、材料分野では、フッ
素のもつ耐熱、耐薬品、撥水、撥油、低屈折率など種々
の特性が活用されている。In recent years, research on the synthesis and application of fluorine-containing organic compounds has progressed, and it has been known that by introducing a fluorine atom into a molecule, the reactivity of the compound can be significantly changed or the stability of the compound can be enhanced. Have been. For example, in the field of medicine and agrochemicals, fluorine is used to improve physiological activity or improve fat solubility. In the field of materials, fluorine has the heat resistance, chemical resistance, water repellency, oil repellency, and low refractive index. Various characteristics such as rate are utilized.
【0004】前述した不飽和カルボン酸クロライドに関
してもフッ素原子が導入されたものが知られており、例
えば、下記式(1): CH2 =C(CF3 )−COCl (1) で表されるトリフロロメタクリル酸クロライド(CAS Re
gistry No.90715-73-4)等が知られている。The above-mentioned unsaturated carboxylic acid chloride is also known to have a fluorine atom introduced therein. For example, it is represented by the following formula (1): CH 2 CC (CF 3 ) -COCl (1) Trifluoromethacrylic acid chloride (CAS Re
gistry No. 90715-73-4) is known.
【0005】[0005]
【発明が解決しようとする課題】従って本発明の課題
は、フッ素原子が導入された新規な含フッ素不飽和カル
ボン酸クロライドを提供することを目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a novel fluorine-containing unsaturated carboxylic acid chloride into which a fluorine atom has been introduced.
【0006】[0006]
【課題を解決するための手段】本発明によれば、2,2
−ジフロロ−3−ブテン酸クロライドが提供される。According to the present invention, 2, 2
-Difluoro-3-butenoic acid chloride is provided.
【0007】本発明のこの酸クロライドは、下記式
(2): CH2 =CH−CF2 −COCl (2) で表されるものであり、不飽和基と酸クロライド基との
間に−CF2 −基(含フッ素基)が介在している点が顕
著な特徴であり、このような分子構造の含フッ素酸クロ
ライドは従来全く知られていない。例えば、酸クロライ
ド基は容易にエステル、アミド、酸フロライド等に誘導
され得るが、特に本発明の酸クロライドにおいては、酸
クロライド基に隣接して電子吸引性の−CF2 −基が存
在しているためにこれらの反応が極めて円滑に進行する
という利点を有している。また本発明の酸クロライド
は、アクリル酸クロライドと同様、ビニル基を有してい
るため、そのままの形で或いはエステル、アミド等へ変
換した形で、モノマーとして各種のポリマーの製造に利
用される。また付加反応により各種の誘導体を形成する
こともでき、例えばSi−H基を有するケイ素化合物と
のヒドロシリル化反応により、ケイ素誘導体を形成する
ことができる。[0007] The acid chloride of the present invention has the following formula (2): CH 2 = CH -CF 2 are those represented by -COCl (2), -CF between the unsaturated group and an acid chloride group A remarkable feature is that a 2 -group (fluorine-containing group) is interposed, and no fluorinated acid chloride having such a molecular structure has been known at all. For example, the acid chloride group is readily esters, amides, may be converted into an acid fluoride or the like, especially acid chlorides of the present invention, an electron withdrawing -CF 2 adjacent to the acid chloride group - in groups are present Therefore, there is an advantage that these reactions proceed very smoothly. Since the acid chloride of the present invention has a vinyl group similarly to acrylic acid chloride, it is used as it is or converted into an ester, an amide or the like as a monomer in the production of various polymers. Various derivatives can also be formed by an addition reaction. For example, a silicon derivative can be formed by a hydrosilylation reaction with a silicon compound having a Si—H group.
【0008】本発明の2,2−ジフロロ−3−ブテン酸
クロライドは、下記式(3): CH2 =CHCF2 COOH (3) で表される2,2−ジフロロ−3−ブテン酸(以下、単
に「ブテン酸」と呼ぶ)を出発原料とし、これを塩素化
することによって合成することができる。The 2,2-difluoro-3-butenoic acid chloride of the present invention is represented by the following formula (3): CH 2 CHCHCF 2 COOH (3) , Which is simply referred to as "butenoic acid") and chlorinating it.
【0009】上記ブテン酸の塩素化のために使用される
塩素化剤としては特に制限はなく、チオニルクロライ
ド、5塩化リン等の公知のものは全て使用することがで
きるが、一般的には副生物の後処理が容易であることか
らチオニルクロライドが好適に使用される。例えば、チ
オニルクロライドを用いると、副成物はSO2 ,HCl
のガスのみであり、後処理が容易である。また塩素化剤
は、通常、塩素化すべきブテン酸に対して1.1〜1.5倍
モルの量で使用される。The chlorinating agent used for the chlorination of butenoic acid is not particularly limited, and all known chlorinating agents such as thionyl chloride and phosphorus pentachloride can be used. Thionyl chloride is preferably used because post-treatment of the organism is easy. For example, when thionyl chloride is used, the by-product is SO 2 , HCl
And the post-treatment is easy. The chlorinating agent is usually used in an amount of 1.1 to 1.5 times the mol of butenoic acid to be chlorinated.
【0010】ブテン酸と塩素化剤との反応は、両者を単
に混合して行なうこともできるが、安全且つ円滑に反応
を進行させるためには、ブテン酸中に塩素化剤を滴下し
て行なうことが好ましい。また反応温度は30〜80
℃、特に40〜60℃が好適である。さらに反応触媒と
して、必要によりジメチルホルムアミド(DMF)を使
用することができる。反応後は、蒸留によって目的の酸
クロライドを単離、精製することができる。The reaction between butenoic acid and the chlorinating agent can be carried out simply by mixing the two, but in order to proceed the reaction safely and smoothly, the reaction is carried out by dropping the chlorinating agent into butenoic acid. Is preferred. The reaction temperature is 30 to 80
C, especially 40-60C is preferred. If necessary, dimethylformamide (DMF) can be used as a reaction catalyst. After the reaction, the desired acid chloride can be isolated and purified by distillation.
【0011】[0011]
実施例1 攪拌器、温度計、コンデンサー、滴下ロートを備えた50
0ml の四つ口フラスコに、 2,2−ジフロロ−3−ブテン酸 213g(1.75モ
ル)、DMF 15g、を仕込んで40℃に加熱した。次い
で滴下ロートにより、 チオニルクロライド 278g(2.34モル)、を徐々に加
えた。SO2 及びHClガスの発生が激しくなりすぎな
い様注意しながら、40〜60℃の温度で5時間滴下を続け
た。滴下の終了時点ではもはやガスの発生は見られなか
った。減圧下に生成物を留出させ、さらに蒸留すること
により、沸点62−66℃(常圧)の液体 195.0g(純度95
%)を得た(収率75%)。Example 1 50 equipped with a stirrer, thermometer, condenser and dropping funnel
In a 0 ml four-necked flask, 213 g (1.75 mol) of 2,2-difluoro-3-butenoic acid and 15 g of DMF were charged and heated to 40 ° C. Then, 278 g (2.34 mol) of thionyl chloride was gradually added by a dropping funnel. The dropwise addition was continued at a temperature of 40 to 60 ° C. for 5 hours while taking care not to generate too much SO 2 and HCl gas. At the end of the dropping, no more gas was generated. The product was distilled under reduced pressure, and further distilled to give 195.0 g of a liquid having a boiling point of 62-66 ° C (normal pressure) (purity 95%).
%) (Yield 75%).
【0012】得られた上記液体について分析を行なった
ところ、下記の結果を得た。 赤外吸収スペクトル: CaF2 ガスセル,チャートを
図1に示す。 特性吸収; 1820cm-1(C=O)1 H−NMR:TMS標準 5.5 〜6.4ppm (m,3H,CH2 =CH−)19 F−NMR: CF3 COOH標準 −25.3 ppm(d)When the obtained liquid was analyzed, the following results were obtained. Infrared absorption spectrum: CaF 2 gas cell, chart is shown in FIG. 1820 cm -1 (C = O) 1 H-NMR: TMS standard 5.5 to 6.4 ppm (m, 3H, CH 2 = CH-) 19 F-NMR: CF 3 COOH standard -25.3 ppm (d)
【0013】 元素分析: C H Cl F 計算値(%) 34.2 2.2 25.2 27.0 実測値(%) 33.5 2.2 25.4 27.9 以上の結果から得られた液体は、2,2−ジフロロ−3
−ブテン酸クロライドであることが確認された。Elemental analysis: CH Cl F calculated value (%) 34.2 2.2 25.2 27.0 Actual value (%) 33.5 2.2 25.4 27.9 Obtained from the above results The liquid is 2,2-difluoro-3
-Butenoic acid chloride was confirmed.
【0014】[0014]
【発明の効果】本発明の2,2−ジフロロ−3−ブテン
酸クロライドは、酸クロライド基に隣接して含フッ素基
(−CF2 −)を有しているので、その電子吸引性によ
り、極めて容易にエステル、アミド、酸フロライド等の
誘導体に変換することが可能である。またビニル基を有
していることから、そのままの形で或いはエステル、ア
ミド等に変化した形でモノマーとして使用され、含フッ
素基の導入により各種の特性が改善された種々のポリマ
ーを製造することができる。さらに、Si-H基を有するケ
イ素化合物とのヒドロシリル化反応を行なうことがで
き、ケイ素化合物の特性改善にも利用される。2,2-difluoro-3-butenoic acid chloride of the present invention exhibits, fluorinated group adjacent to the acid chloride group (-CF 2 -) since they have by their electron-withdrawing, It can very easily be converted to derivatives such as esters, amides and acid fluorides. In addition, because it has a vinyl group, it can be used as it is or as a monomer in the form converted to an ester or amide, etc. to produce various polymers with various properties improved by the introduction of a fluorine-containing group. Can be. Further, a hydrosilylation reaction with a silicon compound having a Si-H group can be performed, and the compound is used for improving characteristics of the silicon compound.
【図1】実施例1で合成された本発明の化合物のIRチ
ャートを示す図。FIG. 1 shows an IR chart of the compound of the present invention synthesized in Example 1.
Claims (1)
イド。1. A 2,2-difluoro-3-butenoic acid chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32277492A JP2578056B2 (en) | 1992-11-06 | 1992-11-06 | New fluorinated unsaturated carboxylic acid chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32277492A JP2578056B2 (en) | 1992-11-06 | 1992-11-06 | New fluorinated unsaturated carboxylic acid chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06145096A JPH06145096A (en) | 1994-05-24 |
| JP2578056B2 true JP2578056B2 (en) | 1997-02-05 |
Family
ID=18147496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32277492A Expired - Lifetime JP2578056B2 (en) | 1992-11-06 | 1992-11-06 | New fluorinated unsaturated carboxylic acid chloride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2578056B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1150265A (en) * | 1997-08-05 | 1999-02-23 | Nitto Denko Corp | Low energy surface treatment |
-
1992
- 1992-11-06 JP JP32277492A patent/JP2578056B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06145096A (en) | 1994-05-24 |
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