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Beilstein J. Org. Chem. 2021, 17, 1733–1751, doi:10.3762/bjoc.17.122
Graphical Abstract
Scheme 1: Mn-catalyzed late-stage fluorination of sclareolide (1) and complex steroid 3.
Figure 1: Proposed reaction mechanism of C–H fluorination by a manganese porphyrin catalyst.
Scheme 2: Late-stage radiofluorination of biologically active complex molecules.
Figure 2: Proposed mechanism of C–H radiofluorination.
Scheme 3: Late-stage C–H azidation of bioactive molecules. a1.5 mol % of Mn(TMP)Cl (5) was used. bMethyl acet...
Figure 3: Proposed reaction mechanism of manganese-catalyzed C–H azidation.
Scheme 4: Mn-catalyzed late-stage C–H azidation of bioactive molecules via electrophotocatalysis. a2.5 mol % ...
Figure 4: Proposed reaction mechanism of electrophotocatalytic azidation.
Scheme 5: Manganaelectro-catalyzed late-stage azidation of bioactive molecules.
Figure 5: Proposed reaction pathway of manganaelectro-catalyzed late-stage C–H azidation.
Scheme 6: Mn-catalyzed late-stage amination of bioactive molecules. a3 Å MS were used. Protonation with HBF4⋅...
Figure 6: Proposed mechanism of manganese-catalyzed C–H amination.
Scheme 7: Mn-catalyzed C–H methylation of heterocyclic scaffolds commonly found in small-molecule drugs. aDAS...
Scheme 8: Examples of late-stage C–H methylation of bioactive molecules. aDAST activation. bFor insoluble sub...
Scheme 9: A) Mn-catalyzed late-stage C–H alkynylation of peptides. B) Intramolecular late-stage alkynylative ...
Figure 7: Proposed reaction mechanism of Mn(I)-catalyzed C–H alkynylation.
Scheme 10: Late-stage Mn-catalyzed C–H allylation of peptides and bioactive motifs.
Scheme 11: Intramolecular C–H allylative cyclic peptide formation.
Scheme 12: Late-stage C–H glycosylation of tryptophan analogues.
Scheme 13: Late-stage C–H glycosylation of tryptophan-containing peptides.
Scheme 14: Late-stage C–H alkenylation of tryptophan-containing peptides.
Scheme 15: A) Late-stage C–H macrocyclization of tryptophan-containing peptides and B) traceless removal of py...