Journal of Organic Chemistry p. 1056 - 1059 (1984)
Update date:2022-09-26
Topics: Cyclization β-Lactams Ketene silyl acetals
Shono, Tatsuya
Tsubata, Kenji
Okinaga, Nobuyuki
A new synthetic method of β-lactams 1'is described.The key intermediates, N-carbomethoxy-β-amino acid esters 2', were synthesized by the reaction of α-methoxylated carbamates 3' with ketene methyl trimethylsilyl acetals 4' catalyzed by titanium tetrachlor
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