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- W4256442783 abstract "[61699-62-5] C10H14O4 (MW 198.22) InChI = 1S/C10H14O4/c1-5(2)13-9-7(11)8(12)10(9)14-6(3)4/h5-6H,1-4H3 InChIKey = KCZPGGVPQXQGEJ-UHFFFAOYSA-N (reagent used as a highly oxygenated four-carbon building block in a wide variety of annulation reactions) Physical Data: mp 43–44 °C. Solubility: soluble in alcohol, diethyl ether, and most organic solvents. Form Supplied in: white crystalline solid readily prepared from squaric acid. Purification: the compound is usually pure enough for subsequent use as obtained from the syntheses outlined below. Preparative Methods: diisopropyl squarate (87%) is readily prepared by azeotropic removal of water from a solution of squaric acid in 1:1 benzene-2-propanol.1, 2 The same compound (81%), as well as examples of other dialkyl squarates that can not be prepared by the above route, are available from a general method involving refluxing a solution of squaric acid in the appropriate alcohol (solvent) in the presence of the corresponding orthoformate (eq 1). (1) Handling, Storage, and Precautions: the solid can be stored under normal laboratory conditions for an extended period of time without apparent decomposition. However, as a precaution, storage in the refrigerator is recommended. One should be careful when preparing and handling dialkyl squarates since many members are powerful skin irritants and sensitizers.3" @default.
- W4256442783 created "2022-05-12" @default.
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- W4256442783 date "2006-04-15" @default.
- W4256442783 modified "2023-10-16" @default.
- W4256442783 title "Diisopropyl Squarate" @default.
- W4256442783 cites W2010255768 @default.
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- W4256442783 doi "https://doi.org/10.1002/047084289x.rn00038u.pub2" @default.
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