Reactions of cephalosporin sulphones 1. Rearrangement of the β-lactam ring to a triazole derivative

DOI: 10.1016/S0040-4039(98)00358-X

Source and publish data:

Tetrahedron Letters p. 3061 - 3064 (1998)

Update date:2022-08-11

Topics:

Authors:

Gunda, Tamas E.

Tamas, Laszlo

Salyi, Szabolcs

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Article abstract of DOI:10.1016/S0040-4039(98)00358-X

The 7β-amino-cephalosporin sulphones, generated in situ from the appropriate 7β-tBoc-amino derivative and diazotized in a one-pot reaction in aq. HClO₄ - MeOH - NaNO₂, rearrange exclusively to the triazoles 5 in a multistep reaction.

Full text of DOI:10.1016/S0040-4039(98)00358-X

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