SU143799A1 - Method for producing phenylphosphonic acid dichloride - Google Patents
Method for producing phenylphosphonic acid dichlorideInfo
- Publication number
- SU143799A1 SU143799A1 SU728389A SU728389A SU143799A1 SU 143799 A1 SU143799 A1 SU 143799A1 SU 728389 A SU728389 A SU 728389A SU 728389 A SU728389 A SU 728389A SU 143799 A1 SU143799 A1 SU 143799A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acid dichloride
- phenylphosphonic acid
- producing
- phenyldichlorophosphine
- phenylphosphonic
- Prior art date
Links
Description
Известен способ получени дихлорангидрида фенилфосфиновой КИСЛОТЫ окислением фенилдихлорфосфина хлором и п тиокисью фосфора либо хлором и сернистым газом.A known method for the production of phenylphosphonic acid ACID dichloride by oxidation of phenyldichlorophosphine with chlorine and phosphorus pentoxide or chlorine and sulfur dioxide.
Известен также способ получени дихлорангидрида фенилфосфииовой КИСЛОТЫ взаимодействием бензола сначала с п- тиокисью фосфора, а затем с п тихлористым фосфором.There is also known a method for producing phenylphosphonic acid ACID dichloride by reacting benzene first with phosphorus parathioxide, and then with phosphorus pentachloride.
В данном изобретении с целью упрош,ени процесса, в качестве окислител используют хлористый сульфурил.In this invention, for the purpose of simplifying the process, sulphuryl chloride is used as the oxidizing agent.
Реакци окислени фенилдихлорфосфина протекает по следующей схеме:The oxidation reaction of phenyldichlorophosphine proceeds as follows:
SO.ClSO.Cl
CglioPCb CeHsPOClaCglioPCb CeHsPOCla
Фенилдихлорфосфин и хлористый сульфурил смешивают в мол рном соотношении 1 : 1,5 и нагревают в колбе с обратным холодильником. После перегонки в вакууме получают дихлорангидрид фенилфосфиновой КИСЛОТЫ, примен емый в качестве полупродукта при синтезах фосфоросодержаших полимеров, обладающих оптическими свойствами.Phenyldichlorophosphine and sulfuryl chloride are mixed in a 1: 1.5 molar ratio and heated to reflux in a flask. After distillation in vacuo, phenylphosphonic acid ACID is used as an intermediate in the synthesis of phosphorus-containing polymers with optical properties.
При м е р. В колбу, снабженную обратным холодильником с хлоркальциевой трубкой, помещают смесь 90 г дихлорфосфина и 100 г хлористого сульфурила и нагревают ее на кип щей вод ной бане в течение двух часов. После окончани реакции окислени избыток хлористого сульфурила отгон ют, а оставщеес масло перегон ют в вакууме. Получают 90 г (92% от теории) дихлорангидрида фенилфосфиновой КИСЛОТЫ с температурой кипени 138-139° при остаточном давлении 15 мм рт. ст.An example. A mixture of 90 g of dichlorophosphine and 100 g of sulphuryl chloride is placed in a flask equipped with a reflux condenser with a calcium chloride tube and heated in a boiling water bath for two hours. After completion of the oxidation reaction, the excess sulfuryl chloride is distilled off, and the remaining oil is distilled in vacuo. 90 g (92% of theory) of phenylphosphine acid ACID dichloride are obtained with a boiling point of 138-139 ° with a residual pressure of 15 mm Hg. Art.
Предлагаемый способ позвол ет получать дихлорангидрид фенилфосфиновой КИСЛОТЫ с высоким выходом и обладает р дом преимуществ по сравнению с известными способами.The proposed method allows to obtain phenylphosphonic acid ACID dichloride in high yield and has several advantages compared with known methods.
„JVo 143799- - 2 -Предмет изобретени JVo 143799- - 2 - Invention Subject
Способ получеци .. дйхлорангидрида фенилфосфиновой кислоты окислением фенилдихлорфосфина, о-тличающийс тем, что, с целью упрощени процесса, в качестве окислител используют хлористый сульфурнл.Phenylphosphonic acid dichloride hydride by oxidation of phenyldichlorophosphine, which is different from the fact that sulfurnyl chloride is used as an oxidizing agent in order to simplify the process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU728389A SU143799A1 (en) | 1961-04-27 | 1961-04-27 | Method for producing phenylphosphonic acid dichloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU728389A SU143799A1 (en) | 1961-04-27 | 1961-04-27 | Method for producing phenylphosphonic acid dichloride |
Publications (1)
Publication Number | Publication Date |
---|---|
SU143799A1 true SU143799A1 (en) | 1961-11-30 |
Family
ID=48299533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU728389A SU143799A1 (en) | 1961-04-27 | 1961-04-27 | Method for producing phenylphosphonic acid dichloride |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU143799A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010368A1 (en) * | 1978-09-29 | 1980-04-30 | Stauffer Chemical Company | Process for production of benzene phosphonic dihalide |
-
1961
- 1961-04-27 SU SU728389A patent/SU143799A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010368A1 (en) * | 1978-09-29 | 1980-04-30 | Stauffer Chemical Company | Process for production of benzene phosphonic dihalide |
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