The author of 《Expected and unforeseen reactions of 2,3,3-trimethyl-1λ6-isothiazolidine-1,1,4-trione and their spiro derivative》 were Popova, Maria V.; Dobrydnev, Alexey V.; Dyakonenko, Viktoriya V.; Konovalova, Irina S.; Shishkina, Svitlana V.; Volovenko, Yulian M.. And the article was published in Tetrahedron in 2019. SDS of cas: 4637-24-5 The author mentioned the following in the article:
Herein, we present a full account of our studies with respect to the reactivity of insufficiently explored 1λ6-isothiazolidine-1,1,4-triones (so-called β-keto-γ-sultams). This heterocyclic system possesses two reaction centers: the EWG-activated methylene group and the carbonyl moiety which were investigated in the course of present study. 2,3,3-Trimethyl-1λ6-isothiazolidine-1,1,4-trione and 4-methyl-5λ6-thia-4-azaspiro[2.4]heptane-5,5,7-trione were chosen as representatives of the given class of substances. The former is a classical spatially uncomplicated model substance, the latter bearing a spiranic cyclopropane substituent is interesting in terms of evaluation of strain cycle effects. Indeed, the data obtained convey information about the impact of the highly strained substituent on the reaction centers of the ketosultam core. Thus, in addition to less stability of the strained spiranic ketosultam, the reactivity of its carbonyl group is suppressed whereas the activity of the methylene group is enhanced being compared with the nonspiranic substrate. Apart from the difference in the chem. character of the given β-keto-γ-sultams we faced unprecedented products (1,1-dioxo-5-[2-(triphenylphosphonio)acetyl]-2,3-dihydro-1H-1λ6-isothiazol-4-olates) formed during the course of the reaction with the Wittig reagent triphenylcarbethoxymethylenephosphorane. In the experiment, the researchers used many compounds, for example, N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5SDS of cas: 4637-24-5)
N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.SDS of cas: 4637-24-5
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem