Heterocycles p. 633 - 642 (2000)
Update date:2022-08-30
Topics:
Tanaka, Hideo
Tokumaru, Yoshihisa
Torii, Sigeru
One-pot synthesis of 3-allyl- and 3-benzyl-Δ3-cephems through a sequential reductive 1,2-elimination/addition/cyclization of 3, 4- disubstituted 2-[2- oxo-3-phenylacetamido-4-(phenylsulfonylthio)azetidin- 1- yl]-2-butenoates was successfully performed by treatment with allyl and benzyl halides in an Mn/NiCl2(bpy)/AlCl3/N-methyl-2-pyrroridinone (NMP) system.
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