Известен способ получени эфнров алкилхлорфосфинистых кислот путем взаимодействи алкиленоксндов с алкнлдихлорфосфинами.A known method for producing alkyl chlorophosphinic acid esters by reacting alkylene oxides with alkynyl chlorophosphines.
Дл расширени ассортимента эфиров алкилхлорфосфинистых кислот предлагаетс способ получени последних, заключающийс в том, что алкнлднхлорфосфины подвергают взаимодействию со спиртами в присутствии оснований.In order to expand the range of alkyl chlorophosphinic acid esters, a method is proposed for preparing the latter, in which the alknold chlorophosphines are reacted with alcohols in the presence of bases.
Способ осуществл ют следуюш,нм образом. Раствор алкилднхлорфосфнна в инертном растворителе при охлаждении перемешивают с эквимолекул рными количествами спирта и диэтиланилина (или другого инертного растворител ). Осадок хлоргидрата основани отфильтровывают и в вакууме дтгон ют растворитель .The method is carried out in the following, nm manner. The solution of alkyl dichlorophosphine in an inert solvent is stirred with cooling with equimolecular amounts of alcohol and diethylaniline (or another inert solvent). The base hydrochloride precipitate is filtered off and the solvent is distilled under vacuum.
Пример. В трехгорлую колбу помета гот 0,2 мол алкилдихлорфосфнна в 200 мл сухого инертного растворител . При перемешнпанни и до 0°С медленно прилипают смесь экзимол рных колнчеств спирта и днэтнланнлнна (или другого нмертного растворител ), затем реакционную смесь псремешивают в течение 2 часов. Осадок хлоргидрата основани отфильтровывают и в вакууме отгон ют растворитель. Остаток перегон ют в вакууме . Все операции провод т в атмосфере азота. Выделенные эфиры алкнлхлорфосфиннстых кислот и их физические константы приведены в таблице. Предмет изобретени Опособ получени эфиров алкилхлорфосфинистых кислот на основе алкилдихлорфосфинов , отличающийс тем, что, с целью расширени ассортимента эфиров, алкилдихлорфосфины подвергают взаимодействию со спиртами в присутствии оснований.Example. In a three-necked litter flask gota 0.2 mol of alkyl dichlorophosphine in 200 ml of dry inert solvent. With stirring and to 0 ° C, a mixture of eximolar alcohol and danethnolnn (or other deadly solvent) slowly adheres, then the reaction mixture is stirred for 2 hours. The base hydrochloride precipitate is filtered off and the solvent is distilled off in vacuo. The residue is distilled in vacuo. All operations are carried out in a nitrogen atmosphere. The selected esters of alkyl chlorophosphine acids and their physical constants are listed in the table. A method for producing alkyl chlorophosphinic acid esters based on alkyl dichlorophosphines, characterized in that, in order to expand the range of esters, alkyl dichlorophosphines are reacted with alcohols in the presence of bases.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU794410ASU165724A1 (en) | 1962-09-11 | 1962-09-11 | METHOD FOR OBTAINING ALKYL CHLOROPHOSPHYN ACID ESTERS |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU794410ASU165724A1 (en) | 1962-09-11 | 1962-09-11 | METHOD FOR OBTAINING ALKYL CHLOROPHOSPHYN ACID ESTERS |
| Publication Number | Publication Date |
|---|---|
| SU165724A1true SU165724A1 (en) | 1964-10-26 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU794410ASU165724A1 (en) | 1962-09-11 | 1962-09-11 | METHOD FOR OBTAINING ALKYL CHLOROPHOSPHYN ACID ESTERS |
| Country | Link |
|---|---|
| SU (1) | SU165724A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021147894A1 (en)* | 2020-01-20 | 2021-07-29 | 利尔化学股份有限公司 | Preparation method for glufosinate ammonium |
| US12312372B2 (en) | 2022-12-02 | 2025-05-27 | Lier Chemical Co., Ltd. | Preparation method of glufosinate or derivatives thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021147894A1 (en)* | 2020-01-20 | 2021-07-29 | 利尔化学股份有限公司 | Preparation method for glufosinate ammonium |
| EP4043468A1 (en)* | 2020-01-20 | 2022-08-17 | Lier Chemical Co., Ltd. | Preparation method for glufosinate ammonium |
| US11680077B2 (en) | 2020-01-20 | 2023-06-20 | Lier Chemical Co., Ltd. | Preparation method for glufosinate |
| EP4043468B1 (en)* | 2020-01-20 | 2025-07-16 | Lier Chemical Co., Ltd. | Preparation method for glufosinate |
| US12312372B2 (en) | 2022-12-02 | 2025-05-27 | Lier Chemical Co., Ltd. | Preparation method of glufosinate or derivatives thereof |
| Publication | Publication Date | Title |
|---|---|---|
| DK457879A (en) | METHOD FOR PREPARING 3,5-DIHYDROXYPENTANOIC ACID ESTER DERIVATIVES | |
| SU165724A1 (en) | METHOD FOR OBTAINING ALKYL CHLOROPHOSPHYN ACID ESTERS | |
| US2570503A (en) | Process of preparing esters of aminesubstituted phosphonic acids | |
| RO78765B (en) | Process for preparing n-trifluoroacetyl n-phosphonomethylglycine derivatives | |
| ES427433A1 (en) | A procedure for preparing a selected chemical compound of the group consisting of nitroimidazool-ethyl O-thiocarbamate. (Machine-translation by Google Translate, not legally binding) | |
| GB1174331A (en) | A process for the preparation of Mono- and Polyacetoacetic Acid Esters | |
| ES402585A1 (en) | Benzylation of dialkyl phosphites with dithiourethanes | |
| ES441741A1 (en) | Unsaturated phosphorus-containing carboxylic acid derivatives | |
| ES460814A1 (en) | Preparation of (2,2-disubstituted vinyl)-y-butyrolactione | |
| ES306802A1 (en) | Aminomethyl derivatives of tetracycline | |
| ES395352A1 (en) | Organo phosphorus herbicides | |
| ES486377A1 (en) | Process for the preparation of 5-mercapto-1,2,3-triazoles | |
| ES432092A1 (en) | Production of alkylene glycol ether esters of organic carboxylic acids | |
| SU480719A1 (en) | The method of obtaining carbalkoxyalkyl ethers of phosphonic acids | |
| SU498309A1 (en) | Method for producing alkoxymethylthiophosphonic acid tetraalkyldiamides | |
| SU122144A1 (en) | The method of obtaining the full esters of dithiophosphoric acid | |
| SU476255A1 (en) | Method for preparing 2-substituted 1,3 dioxepans | |
| SU145575A1 (en) | Method for producing alkyl (aryl) -phosphinic acid ester amides | |
| SU126687A1 (en) | The method of obtaining dialkylamino thiophosphates | |
| IE39025B1 (en) | Esters of pyrazine-tetracarboxylic acid and their preparatation | |
| SU150512A1 (en) | The method of producing quaternary ammonium salt salts | |
| DE974764C (en) | Process for the preparation of monomeric organosilicon compounds | |
| SU522188A1 (en) | Method for preparing chloroalkylalkyl-alkoxycarbamidochlorophosphates | |
| ES405907A1 (en) | O-alkyl-o-cyclohexyl-s-alkyl-,haloalkyl-or alkenyl-phosphorothiolates | |
| GB1330788A (en) | Process for preparing unsaturated phosphorous esters |