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Beilstein J. Org. Chem. 2026, 22, 344–351, doi:10.3762/bjoc.22.22
Graphical Abstract
Scheme 1: Synthesis of nitroxides 2a–f.
Figure 1: X-ray structure of nitroxide 2d.
Scheme 2: Synthesis of mesyl 3a–f and triazole 4a–f derivatives.
Figure 2: X-ray structures of nitroxides 4a–c.
Scheme 3: Synthesis of alkynones 6a,b.
Scheme 4: Synthesis of vinyl ether 8.
Figure 3: X-ray structures of nitroxides 8 and 9a.
Scheme 5: Synthesis of pyrazole derivatives 9a–c.
Figure 4: Spin–spin coupling constants for reduced nitroxides 9a–c.
Beilstein J. Org. Chem. 2019, 15, 2664–2670, doi:10.3762/bjoc.15.259
Scheme 1: Synthesis of compound 1.
Figure 1: X-ray structure of compound 1 (one of the two enantiomers present in the crystal).
Scheme 2: Possible mechanism for the formation of 1.
Figure 2: A possible mechanism for the trans-position of the methyne hydrogens in the azepine ring: the elect...
Figure 3: Selective formation of a single diastereomer in the 1,3-dipolar cycloaddition reaction.
Scheme 3: Synthesis of nitroxide 6.
Figure 4: X-ray structure of compound 6 (one of the two enantiomers present in the crystal).
Scheme 4: A proposed mechanism for nitroxide 6 synthesis.
Figure 5: A, B) Temperature dependence of the electron spin relaxation times in water/glycerol at X-band freq...