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Diisopropyl malonate malonate Diisopropyl
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Introduction
Diisopropyl malonate
Chinese synonyms: diisopropyl malonate;
EINECS no. 236-156-3 [1]
Molecular weight: 188.22
Chemical properties
Boiling point: 93-95 ° C12 mm Hg
Diisopropyl malonate
Diisopropyl malonate
Density: 0.991 g/mL at 25 ° C
Refractive index: n20/D 1.412
Flash: 192 ° F
Malonic acid diisopropyl ester refinement is colorless transparent liquid, with ester aroma, industrial products, slightly yellow, b.p. 99 ~ 100 ℃ / 177.8 Pa, n20D 1.4120, relative density 0.991, soluble in water, soluble in ether, benzene, ether and other organic solvents.
Use and production process
use
Diisopropyl malonate is the intermediate of diisopropyl, a fungicide, rinderol.
Used as medicine and pesticide intermediates.
Production methods
The preparation method is adding malonic acid sodium in the reaction kettle, benzene, and isopropyl alcohol, in 60 ~ 70 ℃ and sulfuric acid on the esterification reaction of 3 ~ 4 h.After the reaction, the diisopropyl malonate crude product was cooled and pumped into the washing kettle for washing and alkaline cleaning. The material solution was separated from the separator and then the product was dissolute and distilled.
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