Abstract
Functionalized hydrazones derived from phosphine oxides or phosphonates were obtained from azaenolates of hydrazones and alkyl halides. The regioselectivity of alkylation of α-phosphorylated hydrazones can be controlled by phosphorus moiety. α-Alkylated compounds were used for the synthesis of heterocycles such as 1-aminopyrrol-2-ones, 1-amino-3,4-dihydropyridin-2-ones and 1-aminopyrroles containing phosphinyl or phosphoryl substituents.
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