Studies of amines and ammonium compounds. CXCIV. A novel route for the synthesis of 1,1-bis(alkoxycarbonyl)-2-methylene-3-cyclopentenes was written by Kocharyan, S. T.;Gamburyan, L. Kh.;Razina, T. L.;Ogandzhanyan, S. M.;Babayan, A. T.. And the article was included in Armyanskii Khimicheskii Zhurnal in 1986.SDS of cas: 1190-39-2 This article mentions the following:
CH2(CO2R)2 and MeCOCH2CO2Et were alkylated with Na and [R2MeNCH2CîCCH:CH2]I in Me2SO; the products cyclized under the reaction conditions to give â?5% cyclopentenes I (R = Me, Et, Bu) or 25% cyclopentene II. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2SDS of cas: 1190-39-2).
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. Polyesters are important plastics, with monomers linked by ester moieties. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 1190-39-2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics