Adding a certain compound to certain chemical reactions, such as: 31827-94-8, name is 2-Bromo-1-(4-iodophenyl)ethanone, belongs to iodides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 31827-94-8, Computed Properties of C8H6BrIO
General procedure: The appropriate carbonyl compound (50 mmol) was dissolved in 50 mL of ethanol and magnetically stirred with an equimolar quantity of thiosemicarbazide for 24 h at room temperature with catalytic amounts of acetic acid. The desired thiosemicarbazone precipitated from reaction mixture, was filtered, crystallized from suitable solvent, and dried. Equimolar quantities of 4-iodo-acetophenone and bromine, both dissolved in chloroform, were stirred for 4 h at room temperature until the presence of HBr disappeared. The solution was evaporated under vacuum and the obtained pale yellow solid was washed with petroleum ether to give alpha-bromo-4-iodo-acetophenone in good yield (94%). Equimolar amounts of the prepared thiosemicarbazone (50 mmol) and alpha-bromo-4-iodo-acetophenone (50 mmol), both suspended in 50 mL of ethanol, were reacted at room temperature under magnetic stirring for 10 h. The precipitate was filtered and purified by chromatography to give compounds 1-25 in high yield.
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Reference:
Article; Secci, Daniela; Bizzarri, Bruna; Bolasco, Adriana; Carradori, Simone; D’Ascenzio, Melissa; Rivanera, Daniela; Mari, Emanuela; Polletta, Lucia; Zicari, Alessandra; European Journal of Medicinal Chemistry; vol. 53; (2012); p. 246 – 253;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com