FIELD: chemistry.
SUBSTANCE: receiving of chlorocyclophosphazenes is carried out by reacting phosphorus pentachloride and excess ammonium chloride in an inert organic solvent at a temperature of at least 120°C in the presence of a catalyst, characterized in that the catalyst is a ternary mixture of a transition metal, its chloride and its oxide in the oxidation state 2, or 3, wherein the catalyst is used in an amount not more than 20 moll. % relative to the phosphorus pentachloride.
EFFECT: method allows to obtain chlorocyclophosphazenes of high yield, and ability to control the composition of the product, by-products either completely absent or their content is not more than 1 per cent in the product.
4 cl, 1 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING EPOXY RESIN, MODIFIED WITH EPOXYPHOSPHAZENES | 2013 |
|
RU2537403C1 |
| METHOD OF PRODUCING CYCLIC HALOPHOSPHAZENES BY REACTING HEXAALKYLDISILAZANES WITH HALOPHOSPHAZAPHOSPHONIUM SALTS | 2018 |
|
RU2729523C2 |
| PHOSPHAZENE-CONTAINING EPOXY RESIN AND METHOD FOR ITS PRODUCTION | 2016 |
|
RU2639708C1 |
| METHOD FOR PRODUCING p-ACRYLFENOXYCYCLOTRIPHOSPHAZENE | 2015 |
|
RU2617427C1 |
| PHOSPHASE-CONTAINING OLIGOESTER ACRYLATE AND METHOD FOR ITS PRODUCTION | 2019 |
|
RU2743697C1 |
| METHOD OF PRODUCING CHLORO-CYCLOPHOSPHOSANES | 0 |
|
SU1047922A1 |
| METHOD OF PRODUCING HIGHEST CHLOROCYCLOPHOSPHAZENES | 0 |
|
SU874613A1 |
| METHOD OF PRODUCTION OF BETA-CARBOXYETHENYL PHENOXY-PHENOXYCYCLOPHOSPHAZENES | 2018 |
|
RU2662717C1 |
| METHOD OF SYNTHESIS OF PHOSPHONITRILE CHLORIDE CYCLIC TRIMER | 1986 |
|
SU1391064A1 |
| METHOD FOR PRODUCING 4-ALLYL-2-METHOXYPHENOXY-BETA-CARBOXYETHENYLPHENOXY-CYCLOTRIPHOSPHAZENES | 2019 |
|
RU2692686C1 |
