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Beilstein J. Org. Chem. 2022, 18, 769–780, doi:10.3762/bjoc.18.77
Graphical Abstract
Scheme 1: Early studies concerning cyclopropene cycloadditions to azomethine ylides and cycloaddition reactio...
Scheme 2: The pilot experiment aimed at studying the cycloaddition reaction between the protonated form of Ru...
Scheme 3: Synthesis of meso-3'-azadispiro[indene-2,2'-bicyclo[3.1.0]hexane-4',2''-indene] derivatives 3b–g vi...
Figure 1: ORTEP representation of the molecular structure of 3e.
Scheme 4: The reaction of protonated Ruhemann's purple (1) with 3-methyl-3-phenylcyclopropene (2j).
Scheme 5: Attempts to carry out the cycloaddition reactions between 3,3-disubstituted cyclopropenes 2k,l and ...
Scheme 6: The reactions of protonated Ruhemann's purple (1) with unstable cyclopropenes 2m–p.
Scheme 7: The acid–base reaction of Ruhemann's purple with hydrochloric acid and relative Gibbs free energy c...
Scheme 8: Plausible mechanism of the 1,3-DC reaction of protonated Ruhemann's purple (1) with 3-methyl-3-phen...
Scheme 9: Plausible mechanism of the 1,3-DC reaction of protonated Ruhemann's purple (1) with 1-chloro-2-phen...
Beilstein J. Org. Chem. 2013, 9, 2675–2680, doi:10.3762/bjoc.9.303
Scheme 1: Synthesis of 2-pentafluorosulfanylaldehydes by addition of SF5Cl to enol ethers.
Scheme 2: Reaction of pentafluorosulfanylaldimines with benzyloxyketene.
Scheme 3: Preparation of ethyl pentafluorosulfanylpyruvate and formation of the corresponding β-lactam.
Figure 1: The 1,2-lk stereochemistry of 7a as determined by single crystal X-ray diffraction. Thermal ellipso...
Scheme 4: Influence of the SF5 group on the initial attack of the ketene on the imine nitrogen (A) and on the...
Figure 2: The stereochemistry of 7c, 1,2-lk,lk (Si, Si-S), as determined by single crystal X-ray diffraction ...