Synthesis of malonic esters catalyzed by tin tetrachloride adsorbed with active carbon was written by Xue, Laiqi;Zhang, Zhihong;Qi, Hongjiang. And the article was included in Huaxue Shijie in 1998.Quality Control of malonic acid dibutyl ester This article mentions the following:
Malonic esters (di-Pr malonate, di-Bu malonate, diisobutyl malonate, diamyl malonate, dioctyl malonate) were synthesized through the reaction of malonic acid with corresponding alcs. under the catalysis of SnCl4. 5H2O adsorbed with activated C. The water produced in the synthesis reaction was carried off by benzene. The esterification rate for di-Bu malonate was 96.8%. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Quality Control of malonic acid dibutyl ester).
malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Quality Control of malonic acid dibutyl ester
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics