In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 2924-09-6, name is 5-Bromo-2-fluoroaniline belongs to bromides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Safety of 5-Bromo-2-fluoroaniline
Intermediate 47 5-Bromo-8-fluoroquinoline A mixture of 5-bromo-2-fluoroaniline (commercially available, for example, from Fluorochem) (21.45 g, 113 mmol) and 6M hydrochloric acid (90 ml) at -50 0C was treated with toluene (150 ml). The mixture was warmed to -60 0C and acrolein (15.1 ml, 226 mmol) was added slowly over 20 min.The mixture was then heated at reflux for 1 h 45 min. The cooled mixture was made alkaline with1OM NaOH aq and extracted with EtOAc. The extracts were washed with brine, dried and evaporated to give a brown oil that was purified by flash column chromatography on silica using mixtures of EtOAc and cyclohexane (1 :9 to 1 :6 ratio) as eluent. Evaporation of the solvent from appropriate fractions gave the title compound (6.69 g). LCMS RT= 2.84 min, ES+ve m/z 226/228[M+H]+.
The synthetic route of 2924-09-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; GLAXO GROUP LIMITED; GORE, Paul Martin; HANCOCK, Ashley, Paul; HODGSON, Simon Teanby; WO2010/94643; (2010); A1;,
Bromide – Wikipedia,
bromide – Wiktionary