Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 1121-76-2, name is 4-Chloropyridine 1-oxide. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 4-Chloropyridine 1-oxide
4-Chloropyridine-N-oxide (3.0 g, 23 mmol), 4-trifluoromethylphenylboronic acid (6.57 g, 34.6 mmol), K2CO3 (4.8 g, 35 mmol) and PdCl2(dppf) (470 mg, 0.57 mmol) were stirred in DMSO (40 mL) under vacuum for 30 min. The flask was flushed with nitrogen, and the mixture was heated to 80 C. for 10 min. Upon cooling, the mixture was diluted with methylene chloride and washed with 5% lithium chloride solution (5*), dried, concentrated, and the residue was purified by flash column chromatography (40 g ISCO column eluting with methylene chloride and a methanol/ammonia mixture (10:1); gradient 100% methylene chloride to 80% methylene chloride over 30 min at 40 mL/min) to provide the title compound (1.90 g, 34%) as a tan solid: ESI MS m/z 240 [M+H]+.
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Reference:
Patent; ALBANY MOLECULAR RESEARCH, INC.; US2012/157460; (2012); A1;,
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