Li P, Zhang Y, Wang L. Iron-catalyzed ligand-free three-component coupling reactions of aldehydes, terminal alkynes, and amines.
Chemistry 2009;
15:2045-9. [PMID:
19177481 DOI:
10.1002/chem.200802643]
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Abstract
A tri-umph in many respects: The iron-catalyzed ligand-free, one-pot three-component coupling reactions of aldehydes, terminal alkynes, and amines in the presence of 4 A molecular sieves yields the corresponding propargylamines in good to excellent yields, displays a broad substrate scope, and is economical and environmentally friendly (see scheme).
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