FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing dimethyldicarbonate by reacting a methyl ester of chloroformic acid with at least one hydroxide of an alkali metal selected from a group of sodium hydroxide and potassium hydroxide, in the presence of at least one water-immiscible organic solvent selected from cyclohexane, toluene, xylene, methylene chloride and diethyl ether, and in the presence of a catalyst, wherein the catalyst used is at least one tertiary amine of formula (I): NR1R2R3 (I), in which R1 denotes methyl, R2 denotes unbranched alkyl with 18 carbon atoms and R3 denotes -[CH2-CH(CH3)-O]n-[CH2-CH(CH3)]-OH, wherein n denotes a number varying from 8 to 11, and amount of used tertiary amine of formula (I) ranges from 0.001 to 0.5 mol. %. in terms of an ester of chloroformic acid.
EFFECT: present invention enables to obtain an end product with high output.
6 cl
| Title | Year | Author | Number |
|---|---|---|---|
| FUNCTIONALISED HIGHLY BRANCHED MELAMINE- AND POLYAMINE-BASED POLYMERS | 2010 |
|
RU2564036C2 |
| BIPHENYLPYRIDONE DERIVATIVES AND THEIR SALTS | 1992 |
|
RU2100350C1 |
| USE OF SPECIAL DERIVATIVES OF QUATERNIZED NITROGEN COMPOUNDS AS ADDITIVES TO FUELS AND LUBRICANTS | 2014 |
|
RU2694529C2 |
| USE OF NITROGEN COMPOUNDS QUATERNISED WITH ALKYLENE OXIDE AND SUBSTITUTED WITH HYDROCARBYL POLYCARBOXYLIC ACID AS ADDITIVES TO FUELS AND LUBRICANTS | 2014 |
|
RU2690497C2 |
| DERIVATIVES OF THIAZOLOQUINOLINE, THEIR RACEMATES OR SEPARATE ENANTIOMERS AND PHARMACEUTICALLY ACCEPTABLE HYDRATES OR SALTS AND PHARMACEUTICAL COMPOSITION SHOWING ANTIBACTERIAL ACTIVITY | 1995 |
|
RU2138505C1 |
| METHOD FOR DYEING KERATIN FIBRES USING CATIONIC STYRYL DISULPHIDE DYES, AND COMPOSITION INCLUDING SAID DYES | 2013 |
|
RU2680068C2 |
| ADDITIVES TO FUELS AND LUBRICANTS BASED ON POLYCARBOXYLIC ACID | 2014 |
|
RU2695543C2 |
| DISHWARE CLEANING METHOD | 2016 |
|
RU2714202C2 |
| DIHYDROPYRIDINE DERIVATIVES, MIXTURE OF THEIR ISOMERS, INDIVIDUAL ISOMERS OR THEIR PHYSIOLOGICALLY TOLERANTABLE SALTS, METHODS OF THEIR SYNTHESIS, INTERMEDIATE COMPOUNDS AND METHOD OF THEIR SYNTHESIS | 1992 |
|
RU2081872C1 |
| POLYURETHANES, DISPERSIONS THEREOF, PREPARATION AND USE THEREOF | 2013 |
|
RU2652782C2 |
