Heterocycles p. 1143 - 1162 (2000)
Update date:2022-08-02
Topics:
Okitsu, Osamu
Oyamada, Hidekazu
Furuta, Takayuki
Kobayashi, Shu
In the presence of a catalytic amount of a rare earth triflate, acylhydrazones reacted with silyl enolates to afford the corresponding β-N'- acylhydrazino esters in high yields. A three-component reaction of an aldehyde, an acylhydrazine, and a silyl enolate was also performed successfully. The hydrazino esters thus obtained were readily converted to β-amino ester, β-amino ketone, β-lactam, pyrazolidinone, and pyrazolinone derivatives.
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