Adding a certain compound to certain chemical reactions, such as: 1647-26-3, name is 1-Bromo-2-cyclohexylethane, belongs to bromides-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 1647-26-3, Safety of 1-Bromo-2-cyclohexylethane
To a solution of chloro-6-methyl-2-[2-(methyloxy)phenyl]-4(1 H)-pyrimidinone (0.42g, 1.7 mmoles) in DMF were added lithium hydride (0.027g, 3.4 mmoles), lithium bromide (0.436g, 5.0 mmoles), and 2-cyclohexylethyi bromide (1.6g, 8.4 mmoles). Upon stirring overnight at room temperature, the reaction was quenched with saturated ammonium chloride, extracted with ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulfate, filtered, concentrated in vacuo and the residue purified by flash chromatography (0-30% ethyl acetate/hexane) to afford the desired product (0.23g, 38%). Subsequent deprotection using BBr3 was accomplished to produce the title compound (0.2g, 90%). MS (m/z): 347.2 [M+ H]+.
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Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2007/62370; (2007); A2;,
Bromide – Wikipedia,
bromide – Wiktionary