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5-fluoro-2-phenyl-4- oxazole

The authors adapted this methodology to prepare 3,3,3-trifluoroalanine 220. Benzamide was first converted to 217 (Ar = CgHs) followed by reductive cyclization to 5-fluoro-2-phenyl-4-(trifluoromethyl)oxazole 218 (Ar = C6H5). Displacement of fluoride in 218 gave 5-ethoxy-2-phenyl-4-(trifluoromethyl)oxazole 219, which was converted to 220 with iodotrimethylsilane (Scheme 1.61). [Pg.47]

TABLE 1.50. A/-BENZOYL-a-(TRIFLUOROMETHYL) AROMATIC a-AMINO ACIDS FROM 5-FLUORO-2-PHENYL-4-(TRIFLUOROMETHYL)OXAZOLE ... [Pg.145]

See other pages where 5-fluoro-2-phenyl-4- oxazole is mentioned: [Pg.728]    [Pg.156]    [Pg.728]    [Pg.728]    [Pg.728]    [Pg.140]    [Pg.637]   
See also in sourсe #XX -- [ Pg.47 , Pg.140 , Pg.145 ]



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