FIELD: chemistry.
SUBSTANCE: invention relates to organic chemistry, specifically to synthesis of dialkylcyclopent-3-en-1,1-dicarboxylate, which may be used as a copolymer, substrate in fine organic synthesis, namely an initial reagent for the synthesis of cyclopentenecarboxylic acid, a dienophile in Diels-Alder reaction. The method comprises alkylation of malonic ester with cis-1,4-dichlorobutene in the presence of triethylbenzylammonium chloride as catalyst at a temperature of 60°C for 4 hours.
EFFECT: method for producing dialkylcyclopent-3-en-1,1-dicarboxylate, improved target product quality and yield.
2 cl, 1 tbl,1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING CHLORIDES OF BICYCLIC AMINES | 2014 |
|
RU2550513C1 |
| METHOD OF OBTAINING AMINES | 2013 |
|
RU2530891C1 |
| METHOD FOR OBTAINING OF SPIRO-GEM-DICHLOROCYCLOPROPYL MALONATES | 2017 |
|
RU2644356C1 |
| METHOD OF LIQUID-PHASE 1,3-BUTADIENE CHLORINATION | 2013 |
|
RU2533421C1 |
| METHOD OF LIQUID PHASE CHLORINATION OF BUTADIENE | 1996 |
|
RU2125036C1 |
| PROCESS FOR RECOVERY OF 1,4-DICHLOROBUTENE-2 | 1996 |
|
RU2125978C1 |
| PROCESS FOR PRODUCING 3-ACETYL-2-METHYL-5-VINYL-4,5-DEHYDROFURAN | 0 |
|
SU979346A1 |
| 0 |
|
SU503502A3 | |
| PROCESS FOR PREPARING MODIFIED 1,4-POLYBUTADIENE | 1992 |
|
RU2083592C1 |
| METHOD OF 3,3-DIETHOXY-1-PHENYLPROP-1-IN SYNTHESIS | 0 |
|
SU1728216A1 |
