Tetrahedron Letters p. 7111 - 7114 (1995)
Update date:2022-08-03
Topics:
Gunda, Tamas E.
Tamas, Laszlo
Salyi, Szabolcs
Nemes, Csaba
Sztaricskai, Ferenc
The cephalosporins 1-3 and Δ2-cephem 4 were oxidized in quantative yields to their sulfones with dimethyldioxirane. While in the case of 2-methylene-cephems (5,6) the exocyclic double bond oxidized simultaneously to the corresponding epoxide, t
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(1949)