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Trifluoroacetimidoyl halides

Glycosyl trifluoroacetimidates have recently been introduced as glycosyl donors [321]. The compounds are prepared by the reaction of the hemiacetal hydroxyl group with N-substituted trifluoroacetimidoyl halides 138, providing anomeric mixtures of the imidates 139 (Scheme 4.24). [Pg.135]

Triphenylphosphine-carbon tetrahalides. 13, 331-332 15, 352 16, 366-368 Acid halides. The relatively mild conditions of converting acids to halides by Ph3P-CX4 can be exploited for a one-flask synthesis of A-methoxy imidoyl bromides, which give rise to nitriles on photolysis. In the presence of EtsN the PhsP-CX4 combination converts amines and CF3COOH to trifluoroacetimidoyl halides. ... [Pg.386]

Uneyama K (1999) Chemistries of trifluoroacetimidoyl halides preparation, reactions, and applications for the synthesis of fluorinated heterocycles. J Fluor Chem 97 11-25... [Pg.364]

See other pages where Trifluoroacetimidoyl halides is mentioned: [Pg.159]    [Pg.136]    [Pg.387]    [Pg.159]    [Pg.136]    [Pg.387]   
See also in sourсe #XX -- [ Pg.315 ]



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