Tetrahedron Letters p. 2411 - 2414 (1999)
Update date:2022-09-26
Topics:
Palacios, Francisco
Gil, Marie J.
Martinez De Marigorta, Eduardo
Rodriguez, Marta
A synthesis of 2-aza-1,3-butadienes 3 substituted with a phosphonate group in the 3-position is described. The key step is the olefination reaction of bisphosphonylalkyl imino compounds 2, with aldehydes in the presence of base. Heterocyclisation of 2-azatrienes 5 afforded substituted 2- phosphorylated pyridines 6.
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