FIELD: chemistry.
SUBSTANCE: invention relates to a method for producing 1-alkyl-2-alkoxyethenylphosphonic acid dichlorides of the formula (1a-c), which can be used as intermediates in organophosphorus synthesis. In this formula, R=C2H5, R'=H (compound 1a); R=C3H7, R'=CH3 (compound 1b); R=C4H9, R'=C2H5 (compound 1c). The method consists in the interaction of dialkyl ethers with phosphorus pentachloride in an inert organic solvent at room temperature and subsequent treatment of the intermediate adducts with an oxygen-comprising compound. Sodium percarbonate is used as the oxygen-comprising compound. The process is carried out at room temperature.
EFFECT: producing 1-alkyl-2-alkoxyethenylphosphonic acid dichlorides of the formula (1a-c) without increasing the temperature and reducing the duration of the process.
1 cl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING 2-ALKOXY-1-CHLOROETHENYLPHOSPHONIC ACID DIACYL CHLORIDES | 2018 |
|
RU2687562C1 |
| METHOD FOR PRODUCING 2,3-DIHYDROFURIL-4-PHOSPHIC ACID DICHLOROANHYDRIDE | 2022 |
|
RU2802467C1 |
| METHOD OF PRODUCING DICHLORANHYDRIDES OF ALKYLTHIOPHOSPHONIC ACIDS | 0 |
|
SU1502574A1 |
| METHOD OF OBTAINING DICHLORANHYDRIDES OF ALKENYLPHOSPHORIC ACIDS | 0 |
|
SU1558919A1 |
| METHOD FOR PRODUCING STYRYLPHOSPHONIC ACID DIACYL CHLORIDES | 2023 |
|
RU2807368C1 |
| METHOD FOR PRODUCING 2,3-DICHLOROTETRAHYDROPHURIL-3-PHOSPHONIC ACID DICHLOROANHYDRIDE | 2022 |
|
RU2797128C1 |
| METHOD FOR OBTAINING DICHLORO-SUBSTITUTED CYCLOPROPYLALKENYL(ALKYL) PHOSPHONIC OR THIOPHOSPHONIC CHLORIDES | 0 |
|
SU1659419A1 |
| METHOD OF PREPARING 2-ALKOXYALKENYLPHOSPHONYL DICHLORIDES | 0 |
|
SU883047A1 |
| PROCESS FOR PREPARING STYRYLPHOSPHONIC ACID DICHLOROANHYDRIDE | 0 |
|
SU1027170A1 |
| PROCESS FOR PREPARING 1-CHLORO-2-ALKOXYVINYLPHOSPHONIC ANHYDRIDES | 0 |
|
SU1067004A1 |
