Synthesis of 3-Allyl- and 3-Benzyl-Δ3-cephems through Sequential Reductive 1,2-Elimination/Addition/Cyclization of 3,4-Disubstituted 2-Butenoates in Allyl and Benzyl Halides/Mn/NiCl2/AlCl3/NMP Systems
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- Synthesis of 3-Allyl- and 3-Benzyl-Δ3-cephems through Sequential Reductive 1,2-Elimination/Addition/Cyclization of 3,4-Disubstituted 2-Butenoates in Allyl and Benzyl Halides/Mn/NiCl2/AlCl3/NMP Systems