Chemistry Letters p. 1411 - 1414 (1985)
Update date:2022-08-15
Topics:
Tsuge, Otohiko
Kanemasa, Shuji
Matsuda, Koyo
Through alkylation or silylation and then desilylation steps, N-(silylmethyl)amidines generate N-protonated azomethine ylides which cycloadd to olefins, acetylenes, and aldehydes giving 1- or 2-pyrrolines, pyrroles, and 2-oxazolines, respectively, after the elimination of N-substituted anilines.With this sequence, the amidines are useful synthetic equivalents of nonstabilized nitrile ylides.
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