5-Fluoro-2-methylbenzo[d]oxazole, cas is 701-16-6, it is a common heterocyclic compound, the benzoxazole compound, its synthesis route is as follows.,701-16-6
General procedure: The SBOs were prepared by the base-catalysed condensation of the appropriate 5-halogeno-2-methylbenzoxazole with the requisite aromatic aldehyde under phase transfer conditions. In a typical experiment, equimolar quantities (5 mmol) of the starting materials were dissolved in dichloromethane (20-50 ml) in the presence of benzyltriethylammonium chloride (3 mmol) and stirred magnetically under a nitrogen atmosphere as an aqueous solution of sodium hydroxide (50%, w/v, 5 ml) was added dropwise over a period of 10 min. After being stirred for 2-36 h until analytical thin layer chromatography indicated that the reaction was complete, the mixture was diluted with water (50 ml) and the SBO was extracted with dichloromethane (3¡Á20 ml), dried (MgSO4), filtered, evaporated under reduced pressure and recrystallized from aqueous methanol or ethanol.
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Reference£º
Article; Ayrton, Stephen T.; Panova, Jekaterina; Michalik, Adam R.; Martin, William H.C.; Gallagher, Richard T.; Bowen, Richard D.; International Journal of Mass Spectrometry; vol. 345-347; (2013); p. 120 – 131;,
Benzoxazole – Wikipedia
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