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Beilstein J. Org. Chem. 2019, 15, 769–779, doi:10.3762/bjoc.15.73
Graphical Abstract
Figure 1: Commercially available ruthenium catalysts for metathesis reactions.
Figure 2: Retrosynthesis of the ruthenium catalysts.
Scheme 1: Efficient multigram synthesis of N,N-dialkyl-2-vinylbenzylamines 4 (R1X = Me2SO4, Et2SO4 or BnCl, s...
Scheme 2: Synthesis of N-(2-ethenylbenzyl)heterocycles 5.
Scheme 3: Synthesis of N-monoalkyl-2-vinylbenzylamine 7.
Scheme 4: Synthesis of Hoveyda–Grubbs-type catalysts 11.
Scheme 5: Synthesis of the “chloroform adduct” 9.
Figure 3: Selected X-ray data for ruthenium complexes 11a–c. All hydrogen atoms were deleted for clarity (exc...
Scheme 6: Catalytic activity of compounds 11 in the metathesis reactions.
Beilstein J. Org. Chem. 2017, 13, 2561–2568, doi:10.3762/bjoc.13.252
Scheme 1: Intramolecular cyclization of 3-(aminomethyl)pyridazines and related compounds (route A). Condition...
Scheme 2: Heterocyclization of 1-aminoimidazoles with 1,3-dicarbonyl or α,β-unsaturated carbonyl compounds (r...
Scheme 3: Heterocyclization of 1-aminoimidazoles with structural transformation of dielectrophilic reagents (...
Scheme 4: Recyclization of N-arylitaconimides 1 with 1,2-diaminobenzimidazole (2).
Scheme 5: Possible synthetic routes of the interaction of itaconimides 1 with diaminoimidazole 4.
Scheme 6: 1H,13C-HMBC correlations: the most significant correlations for imidazopyridazine 9d and possible f...