Tetrahedron
Diastereoselective 1, 3-dipolar cycloadditions of new azomethine ylides derived from trifluorothioacetamides or cyanothioformamides
F Laduron, HG Viehe
Index: Laduron, Frederic; Viehe, Heinz G Tetrahedron, 2002 , vol. 58, # 18 p. 3543 - 3551
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Citation Number: 14
Abstract
Deprotonation of trifluoromethyl or cyano thioamidium salts generates new azomethine ylides which undergo cycloaddition to dipolarophiles with high diastereoselectivity. Epimerisation, hydrolysis and reduction of the new trifluoromethylated heterocycles are also described.
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