Adding a certain compound to certain chemical reactions, such as: 2033-24-1, name is 2,2-Dimethyl-1,3-dioxane-4,6-dione, belongs to esters-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 2033-24-1, category: esters-buliding-blocks
2,4,5-trifluorophenylacetic acid (30 g), tetrahydrofuran (360 ml_), 1 ,1 -carbonyl diimidazole (25.5 g) at about 5O0C, and meldrums acid (22.7 g) are combined. The mixture is stirred for about five hours at the same temperature. The reaction mass is then cooled to about 3O0C. Isopropyl acetate (180 ml_) and water (180 ml_) are added and stirred for about 30 minutes. The reaction mass is cooled to about O0C and pH is adjusted to about 2.4 using 36% aqueous hydrochloric acid. The organic layer is separated, washed with 0.1 N aqueous hydrochloric acid and distilled off completely. To the residue obtained, n-heptane (140 ml_) and isopropyl acetate (70 ml_) are charged at about 3O0C and stirred at about O0C for about 90 minutes. The separated solid is filtered and washed with a mixture of n-heptane (20 ml_)
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Reference:
Patent; DR. REDDY’S LABORATORIES LIMITED; DR. REDDY’S LABORATORIES, INC.; WO2009/85990; (2009); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics