Adding a certain compound to certain chemical reactions, such as: 33863-76-2, name is 1-Bromo-3-chloro-5-fluorobenzene, belongs to chlorides-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 33863-76-2, COA of Formula: C6H3BrClF
A solution of 1-bromo-3-chloro-5-fluorobenzene (50.0 g, 239 mmol) in DMF (300 ml.) was treated with sodium methoxide (15.5 g, 286 mmol) and the reaction was stirred overnight at rt. The mixture was diluted with ethyl acetate (500 ml.) and washed with water (700 ml_). The organic layer was isolated, washed with brine, dried over magnesium sulfate, filtered, and concentrated to give 51.0 g of the title compound which was used without purification. 1H NMR (DMSOd6) ¡ì 7.23 (t, 1 H), 7.13 – 7.15 (m, 1 H), 7.05 (t, 1 H), 3.77 (s, 3 H).
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Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2008/157330; (2008); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics