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- W4255989262 abstract "[1546-79-8] C5H3F3N2O (MW 164.10) InChI = 1S/C5H3F3N2O/c6-5(7,8)4(11)10-2-1-9-3-10/h1-3H InChIKey = SINBGNJPYWNUQI-UHFFFAOYSA-N (dehydration; protection; acylation) Physical Data: mp 136–137 °C; bp 45–46 °C/14 mmHg. Solubility: sol most common solvents, e.g. ether, THF. Analysis of Reagent Purity: commercial material is 98+% pure. Preparative Methods: N,N′‐Carbonyldiimidazole (20.5 g) is dissolved in 100 ml of dry THF and treated dropwise with 28.8 g of Trifluoroacetic Acid in 80 mL of dry THF. The resulting solution is cooled for several hours. Removal of the solvent and distillation of the filtrate gives 14.4 g of material. Alternatively, Imidazole (25.8 g) in 120 mL of dried THF is treated dropwise, with cooling, with 39.9 g of Trifluoroacetic Anhydride in 50 mL of dried THF. Filtration, removal of solvent, and distillation gives 24.8 g of product.1 Purification: by distillation. Handling, Storage, and Precautions: store under nitrogen, carefully excluding water. Irritant; moisture sensitive; keep cold; flammable." @default.
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- W4255989262 date "2001-04-15" @default.
- W4255989262 modified "2023-09-26" @default.
- W4255989262 title "N-Trifluoroacetylimidazole" @default.
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- W4255989262 doi "https://doi.org/10.1002/047084289x.rt241" @default.
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