title: Acyl vs sulfonyl transfer in N-acyl beta-sultams and 3-oxo-beta-sultams.
abstract: [reaction: see text] N-Acylsulfonamides usually react with nucleophiles by acyl transfer and C-N bond fission. However, the hydrolysis of N-acyl beta-sultams is a sulfonyl transfer reaction that occurs with S-N fission and opening of the four-membered ring. Similar to other beta-sultams, the N-acyl derivatives are at least 10(6)-fold more reactive than N-acyl sulfonamides. 3-Oxo-beta-sultams are both beta-lactams and beta-sultams but also hydrolyze with preferential S-N bond fission.
authors.affiliation: Department of Chemical and Biological Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
authors.forename: Naveed
authors.initials: N
authors.lastname: Ahmed
authors.forename: Wing Y
authors.initials: WY
authors.lastname: Tsang
authors.forename: Michael I
authors.initials: MI
authors.lastname: Page