JP3456626B2 - Method for producing trifluoromethanesulfonic anhydride - Google Patents
Method for producing trifluoromethanesulfonic anhydrideInfo
- Publication number
- JP3456626B2 JP3456626B2 JP04004598A JP4004598A JP3456626B2 JP 3456626 B2 JP3456626 B2 JP 3456626B2 JP 04004598 A JP04004598 A JP 04004598A JP 4004598 A JP4004598 A JP 4004598A JP 3456626 B2 JP3456626 B2 JP 3456626B2
- Authority
- JP
- Japan
- Prior art keywords
- chlorine
- phosphorus trichloride
- trifluoromethanesulfonic anhydride
- trifluoromethanesulfonic
- trifluoromethanesulfonic acid
- 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 - Fee Related
Links
- WJKHJLXJJJATHN-UHFFFAOYSA-N triflic anhydride Chemical compound FC(F)(F)S(=O)(=O)OS(=O)(=O)C(F)(F)F WJKHJLXJJJATHN-UHFFFAOYSA-N 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000460 chlorine Substances 0.000 claims description 26
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 21
- 229910052801 chlorine Inorganic materials 0.000 claims description 21
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 claims description 19
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000000047 product Substances 0.000 description 6
- 239000006227 byproduct Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- GRGCWBWNLSTIEN-UHFFFAOYSA-N trifluoromethanesulfonyl chloride Chemical compound FC(F)(F)S(Cl)(=O)=O GRGCWBWNLSTIEN-UHFFFAOYSA-N 0.000 description 4
- 238000004821 distillation Methods 0.000 description 3
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000008204 material by function Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- FOBPTJZYDGNHLR-UHFFFAOYSA-N diphosphorus Chemical compound P#P FOBPTJZYDGNHLR-UHFFFAOYSA-N 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、トリフルオロメタ
ンスルホン酸無水物の製造方法に関するものである。ト
リフルオロメタンスルホン酸無水物は、医薬品、農薬、
各種機能材料などを製造する際の原料や触媒などとして
有用な化合物である。TECHNICAL FIELD The present invention relates to a method for producing trifluoromethanesulfonic anhydride. Trifluoromethanesulfonic anhydride is a drug, pesticide,
It is a compound useful as a raw material or a catalyst when manufacturing various functional materials.
【0002】[0002]
【発明が解決しようとする課題】従来、トリフルオロメ
タンスルホン酸無水物を製造する方法としては、以下の
反応式で示されるように、トリフルオロメタンスルホン
酸を五酸化二リンと反応させ、脱水縮合することにより
製造する方法が知られている。Conventionally, as a method for producing trifluoromethanesulfonic anhydride, as shown by the following reaction formula, trifluoromethanesulfonic acid is reacted with diphosphorus pentoxide and dehydration condensation is carried out. A method of manufacturing is known.
【0003】[0003]
【化1】6CF3SO3H+P2O5→3(CF3SO2)2
O+2H3PO4
しかしながら、この製造方法においては、ガラス状のポ
リリン酸が副生して反応液が固結してしまい、反応液の
撹拌ができなくなるため、それ以上反応を続行できなく
なってしまうという問題があり、また、副生したポリリ
ン酸の反応終了後の処理が容易でないという問題もある
ため、工業的にトリフルオロメタンスルホン酸無水物を
製造する方法としては適当ではない。Embedded image 6CF 3 SO 3 H + P 2 O 5 → 3 (CF 3 SO 2 ) 2
O + 2H 3 PO 4 However, in this manufacturing method, glassy polyphosphoric acid is by-produced and the reaction solution is solidified, and the reaction solution cannot be stirred, so that the reaction cannot be continued any more. There is a problem that it is not easy to treat the by-produced polyphosphoric acid after completion of the reaction, so that it is not suitable as a method for industrially producing trifluoromethanesulfonic anhydride.
【0004】[0004]
【課題を解決するための手段】そこで、上記のような問
題点を解決することを目的として本発明者が鋭意検討を
行った結果、トリフルオロメタンスルホン酸を五酸化二
リンの代わりに三塩化リンおよび塩素と反応させること
により、トリフルオロメタンスルホン酸無水物を容易
に、高選択性かつ高収率で製造することができることを
見出し、本発明に到達した。The inventors of the present invention have conducted extensive studies to solve the above problems, and as a result, trifluoromethanesulfonic acid was replaced with phosphorus trichloride instead of diphosphorus pentaoxide. The inventors have found that trifluoromethanesulfonic anhydride can be easily produced with high selectivity and high yield by reacting it with chlorine and chlorine, and arrived at the present invention.
【0005】すなわち、本発明は、トリフルオロメタン
スルホン酸〔CF3SO3H〕を三塩化リンおよび塩素
〔PCl3+Cl2〕と反応させることを特徴とするトリ
フルオロメタンスルホン酸無水物〔(CF3SO2)
2O〕の製造方法である。That is, the present invention is characterized in that trifluoromethanesulfonic acid [CF 3 SO 3 H] is reacted with phosphorus trichloride and chlorine [PCl 3 + Cl 2 ], and trifluoromethanesulfonic anhydride [(CF 3 SO 2 )
2 O].
【0006】以下、本発明のトリフルオロメタンスルホ
ン酸無水物の製造方法について、詳細に説明する。本発
明のトリフルオロメタンスルホン酸無水物の製造方法に
おいては、トリフルオロメタンスルホン酸〔CF3SO3
H〕を三塩化リンおよび塩素〔PCl3+Cl2〕と反応
させることにより、以下の反応式にしたがってトリフル
オロメタンスルホン酸無水物〔(CF3SO2)2O〕が
製造される。The method for producing the trifluoromethanesulfonic anhydride of the present invention will be described in detail below. In the method for producing trifluoromethanesulfonic acid anhydride of the present invention, trifluoromethanesulfonic acid [CF 3 SO 3
H] is reacted with phosphorus trichloride and chlorine [PCl 3 + Cl 2 ] to produce trifluoromethanesulfonic anhydride [(CF 3 SO 2 ) 2 O] according to the following reaction formula.
【0007】[0007]
【化2】2CF3SO3H+PCl3+Cl2→(CF3S
O2)2O+POCl3+2HCl
本発明においては、添加する三塩化リンと塩素のモル比
は、1:1付近とするのがよい。## STR2 ## 2CF 3 SO 3 H + PCl 3 + Cl 2 → (CF 3 S
O 2 ) 2 O + POCl 3 + 2HCl In the present invention, the molar ratio of phosphorus trichloride and chlorine to be added is preferably about 1: 1.
【0008】本発明における三塩化リンおよび塩素の添
加量は、トリフルオロメタンスルホン酸1モルに対して
1モル以下とするのが好ましく、より好ましくは0.2
モル〜0.6モルである。トリフルオロメタンスルホン
酸に対する三塩化リンおよび塩素のモル比を大きくする
と、それに伴って副生成物であるトリフルオロメタンス
ルホニルクロライド〔CF3SO2Cl〕の生成量が増加
し、目的生成物であるトリフルオロメタンスルホン酸無
水物の収率が低下する原因となるため、好ましくない。
トリフルオロメタンスルホン酸に対する三塩化リンおよ
び塩素のモル比が0.6を越えたあたりで、目的生成物
であるトリフルオロメタンスルホン酸無水物の収率が5
0%以下となるため、より効率よく反応を行うために
は、トリフルオロメタンスルホン酸に対する三塩化リン
および塩素のモル比は、0.6以下としたほうがよい。
一方、トリフルオロメタンスルホン酸に対する三塩化リ
ンおよび塩素のモル比が小さい場合には、トリフルオロ
メタンスルホニルクロライドの副生は、抑制できる。し
かしながら、本発明においては、目的生成物であるトリ
フルオロメタンスルホン酸無水物の生成量は、三塩化リ
ンおよび塩素の添加量に依存する。したがって、トリフ
ルオロメタンスルホン酸に対する三塩化リンおよび塩素
のモル比を小さくすると、それに伴って反応1回当たり
の収量が減少することになり、目的生成物であるトリフ
ルオロメタンスルホン酸無水物の生産性が低下するた
め、好ましくない。トリフルオロメタンスルホン酸に対
する三塩化リンおよび塩素のモル比を0.2程度まで小
さくすると、トリフルオロメタンスルホニルクロライド
の副生をほぼ完全に抑制できるため、トリフルオロメタ
ンスルホン酸に対する三塩化リンおよび塩素のモル比
は、0.2以上としたほうがよい。In the present invention, the amount of phosphorus trichloride and chlorine added is preferably 1 mol or less, more preferably 0.2 mol, based on 1 mol of trifluoromethanesulfonic acid.
It is from mol to 0.6 mol. When the molar ratio of phosphorus trichloride and chlorine to trifluoromethanesulfonic acid is increased, the amount of trifluoromethanesulfonyl chloride [CF 3 SO 2 Cl], which is a by-product, increases accordingly, and the target product trifluoromethane is increased. This is not preferable because it causes a decrease in the yield of the sulfonic acid anhydride.
When the molar ratio of phosphorus trichloride and chlorine to trifluoromethanesulfonic acid exceeded 0.6, the yield of the target product trifluoromethanesulfonic anhydride was 5%.
Since it is 0% or less, in order to carry out the reaction more efficiently, the molar ratio of phosphorus trichloride and chlorine to trifluoromethanesulfonic acid should be 0.6 or less.
On the other hand, when the molar ratio of phosphorus trichloride and chlorine to trifluoromethanesulfonic acid is small, the by-product of trifluoromethanesulfonyl chloride can be suppressed. However, in the present invention, the production amount of the target product, trifluoromethanesulfonic anhydride, depends on the addition amounts of phosphorus trichloride and chlorine. Therefore, if the molar ratio of phosphorus trichloride and chlorine to trifluoromethanesulfonic acid is reduced, the yield per reaction is reduced accordingly, and the productivity of the target product, trifluoromethanesulfonic anhydride, is reduced. It is not preferable because it decreases. If the molar ratio of phosphorus trichloride and chlorine to trifluoromethanesulfonic acid is reduced to about 0.2, the by-product of trifluoromethanesulfonyl chloride can be suppressed almost completely. Should be 0.2 or more.
【0009】本発明においては、まず、トリフルオロメ
タンスルホン酸と三塩化リンを仕込み、次いで塩素を導
入した後に反応を行うが、塩素を導入する際には発熱を
伴うため、導入時の温度は、40℃以下とするのが好ま
しく、より好ましくは氷冷下〜20℃である。また、反
応温度は、20〜80℃とするのが好ましいが、反応を
より効率よく進行させるためには若干加温するのが好ま
しく、より好ましい反応温度は、40〜70℃である。In the present invention, first, trifluoromethanesulfonic acid and phosphorus trichloride are charged, and then the reaction is carried out after introducing chlorine. However, when chlorine is introduced, heat is generated. The temperature is preferably 40 ° C or lower, more preferably under ice cooling to 20 ° C. Further, the reaction temperature is preferably 20 to 80 ° C., but it is preferably slightly heated in order to allow the reaction to proceed more efficiently, and the more preferable reaction temperature is 40 to 70 ° C.
【0010】本発明においては、上記の反応によりトリ
フルオロメタンスルホン酸無水物と塩化ホスホリル〔P
OCl3〕が生成する。さらに、トリフルオロメタンス
ルホニルクロライドが副生する場合もあるが、これらは
未反応原料であるトリフルオロメタンスルホン酸を含め
て、いずれも常温で液体であるため、従来の五酸化二リ
ンを用いた製造の場合のように、反応液が固結したりす
ることがない。また、未反応原料および生成物がすべて
常温で液体であるため、反応終了後に蒸留することによ
り容易に分離・精製することができる。したがって、本
発明においては、目的生成物であるトリフルオロメタン
スルホン酸無水物を非常に容易に、かつ、効率よく得る
ことができるため、従来の製造方法と比較して操作性お
よび生産性が非常によくなるという利点がある。In the present invention, trifluoromethanesulfonic anhydride and phosphoryl chloride [P
OCl 3 ] is produced. In addition, trifluoromethanesulfonyl chloride may be produced as a by-product, but these are all liquids at room temperature, including trifluoromethanesulfonic acid, which is an unreacted raw material, so they can be produced using conventional diphosphorus pentoxide. The reaction solution does not solidify as in the case. Further, since all unreacted raw materials and products are liquid at room temperature, they can be easily separated and purified by distillation after the reaction is completed. Therefore, in the present invention, the target product, trifluoromethanesulfonic anhydride, can be obtained very easily and efficiently, so that the operability and the productivity are very high as compared with the conventional production method. It has the advantage of improving.
【0011】[0011]
【発明の実施の形態】以下、実施例により本発明の実施
の形態を具体的に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to examples.
【0012】[0012]
【実施例】実施例1
トリフルオロメタンスルホン酸45.02g(0.3モ
ル)に三塩化リン20.60g(0.15モル)を仕込
んだ。次いで、塩素10.64g(0.15モル)を氷
冷下、導入した。塩素導入後、加温し、70℃で5時間
撹拌した。反応終了後、蒸留し、トリフルオロメタンス
ルホン酸無水物24.40g(57.7%:三塩化リン
を基準とした収率)を得た。 EXAMPLE 1 20.60 g (0.15 mol) of phosphorus trichloride was charged to 45.02 g (0.3 mol) of trifluoromethanesulfonic acid. Then, 10.64 g (0.15 mol) of chlorine was introduced under ice cooling. After introducing chlorine, the mixture was heated and stirred at 70 ° C. for 5 hours. After completion of the reaction, distillation was performed to obtain 24.40 g of trifluoromethanesulfonic anhydride (57.7%: yield based on phosphorus trichloride).
【0013】沸点:81℃〜83℃実施例2
トリフルオロメタンスルホン酸225.1g(1.5モ
ル)に三塩化リン97.7g(0.71モル)を仕込ん
だ。次いで、15℃以下で塩素50.3g(0.71モ
ル)を導入した。塩素導入後、加温し、70℃で5時間
撹拌した。反応終了後、蒸留し、トリフルオロメタンス
ルホン酸無水物140.0g(70.0%:三塩化リン
を基準とした収率)を得た。Boiling point: 81 ° C.-83 ° C. Example 2 225.1 g (1.5 mol) of trifluoromethanesulfonic acid was charged with 97.7 g (0.71 mol) of phosphorus trichloride. Next, 50.3 g (0.71 mol) of chlorine was introduced at 15 ° C or lower. After introducing chlorine, the mixture was heated and stirred at 70 ° C. for 5 hours. After completion of the reaction, distillation was carried out to obtain 140.0 g of trifluoromethanesulfonic anhydride (70.0%: yield based on phosphorus trichloride).
【0014】沸点:81℃〜83℃Boiling point: 81 ° C to 83 ° C
【0015】[0015]
【発明の効果】本発明の製造方法により、医薬品、農
薬、各種機能材料などを製造する際の原料や触媒などと
して有用な化合物であるトリフルオロメタンスルホン酸
無水物を容易に、高選択性かつ高収率で製造することが
できる。Industrial Applicability According to the production method of the present invention, trifluoromethanesulfonic anhydride, which is a compound useful as a raw material or a catalyst for producing pharmaceuticals, agricultural chemicals, various functional materials, etc., can be easily and highly selectively and highly produced. It can be produced in yield.
Claims (2)
O3H〕を三塩化リンおよび塩素〔PCl3+Cl2〕と
反応させることを特徴とするトリフルオロメタンスルホ
ン酸無水物〔(CF3SO2)2O〕の製造方法。1. Trifluoromethanesulfonic acid [CF 3 S
A method for producing trifluoromethanesulfonic acid anhydride [(CF 3 SO 2 ) 2 O], characterized in that O 3 H] is reacted with phosphorus trichloride and chlorine [PCl 3 + Cl 2 ].
オロメタンスルホン酸に対して0.2〜0.6当量とす
ることを特徴とする請求項1記載のトリフルオロメタン
スルホン酸無水物の製造方法。2. The method for producing trifluoromethanesulfonic anhydride according to claim 1, wherein the amount of phosphorus trichloride and chlorine added is 0.2 to 0.6 equivalents with respect to trifluoromethanesulfonic acid. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04004598A JP3456626B2 (en) | 1998-02-23 | 1998-02-23 | Method for producing trifluoromethanesulfonic anhydride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04004598A JP3456626B2 (en) | 1998-02-23 | 1998-02-23 | Method for producing trifluoromethanesulfonic anhydride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11236366A JPH11236366A (en) | 1999-08-31 |
| JP3456626B2 true JP3456626B2 (en) | 2003-10-14 |
Family
ID=12569957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04004598A Expired - Fee Related JP3456626B2 (en) | 1998-02-23 | 1998-02-23 | Method for producing trifluoromethanesulfonic anhydride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3456626B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6469206B2 (en) * | 2000-03-08 | 2002-10-22 | Eastman Chemical Company | Process for the preparation of triflic anhydride |
| KR101294531B1 (en) | 2005-10-25 | 2013-08-07 | 미쓰비시마테리알덴시카세이가부시키가이샤 | Process for producing trifluoromethanesulfonic anhydride |
| FR2904313A1 (en) * | 2006-07-27 | 2008-02-01 | Rhodia Recherches & Tech | PROCESS FOR THE PREPARATION OF SULFONIC ACID ANHYDRIDE |
-
1998
- 1998-02-23 JP JP04004598A patent/JP3456626B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11236366A (en) | 1999-08-31 |
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