β-LACTAM SYNTHESIS: CYCLIZATION VERSUS 1,2-ACYL MIGRATION-CYCLIZATION. THE MECHANISM OF THE 1,2-ACYL MIGRATION-CYCLIZATION
The cyclization of hydroxamate 1 unexpectedly afforded two isomeric β-lactams 2 and 3.The mechanism for the formation of 3 has been shown by carbon-13 labeling to involve a novel 1,2-acyl migration-cyclization process.
Godfrey, Jollie D.,Mueller, Richard H.,Langen, Derek J. Von
p. 2793 - 2796
(2007/10/02)
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