4 article(s) from Charushin, Valery N
Graphical Abstract
Scheme 1: Chemical structures of [1,2,4]triazolo[4,3-b][1,2,4,5]tetrazine (a), [1,2,4]triazolo[1,5-b][1,2,4,5...
Scheme 2: Synthesis of [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines 3a–k.
Figure 1: X-ray structure of N-(6-(4-bromo-3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazin-3-yl)benzamide.
Scheme 3: Reactions of triazolo[1,5-b][1,2,4,5]tetrazines 3a,j with N- and O-nucleophiles.
Scheme 4: Reactions of triazolo[1,5-b][1,2,4,5]tetrazines 3a,j with C-nucleophiles.
Scheme 5: Reactions of 6-(3,5-dimethyl-1H-pyrazol-1-yl)-3-methyl-[1,2,4]triazolo[4,3-b][1,2,4,5]tetrazine (10a...
Graphical Abstract
Scheme 1: C–H/C–Li cross-coupling reactions of 2H-imidazole 1-oxides 1a–d and carboranyl lithium 2. The react...
Figure 1: The 1H NMR spectra of 1-(5-(4-bromophenyl)-2-ethyl-2-methyl-2H-imidazol-4-yl)-1,2-dicarba-closo-dod...
Figure 2: Fragment of the 2D 1H–13C{1H} HSQC (a) and HMBC (b) spectra of imidazolyl carborane 5d in CDCl3 at ...
Figure 3: Molecular structure of 5d. Selected bond distances (Å) and angles (deg) for molecule 1: C(3)–C(14),...
Graphical Abstract
Figure 1: ICZ-cored materials for organic electronic devices.
Figure 2: General positions for SEAr in ICZs 1.
Scheme 1: Double nitration of indolo[3,2-b]carbazole 1a.
Figure 3: X-ray single crystal structure of compound 2a. Thermal ellipsoids of 50% probability are presented.
Scheme 2: C2- and C2,8-nitration of indolo[3,2-b]carbazoles 1.
Scheme 3: Reduction of nitro-substituted ICZs 2 and 3.
Scheme 4: Nitration of 6,12-unsubstituted indolo[3,2-b]carbazoles 8.
Figure 4: X-ray single crystal structure of compounds 9b and 10b. Thermal ellipsoids of 50% probability are p...
Scheme 5: Modification of 6,12-dinitro-ICZs 9a,b by electrophilic substitution.
Figure 5: X-ray single crystal structure of compounds 12b and 13b. Thermal ellipsoids of 50% probability are ...
Scheme 6: A possible mechanism for the reduction of 6,12-dinitro-ICZs 9a and 13a.
Scheme 7: Reactions of 6-nitro- and 6,12-dinitro-ICZs with S-nucleophiles.
Scheme 8: Successive substitution of nitro groups in 6,12-dinitro-ICZ 9a with N- and S-nucleophiles.
Graphical Abstract
Figure 1: Natural and synthetic derivatives of thieno[2,3-b]indole.
Scheme 1: Synthetic routes to thieno[2,3-b]indoles.
Scheme 2: Synthesis and thionation of indodin-2-ones 11.
Scheme 3: Synthetic paths to thieno[2,3-b]indole 12a. LR = Lawesson's reagent
Figure 2: Mercury [34] representation of the X-ray crystal structure of 12a. Thermal ellipsoids of 50% probabilit...
Scheme 4: Two-step synthesis of 2-(hetero)aryl substituted thieno[2,3-b]indoles 12.
Scheme 5: Synthesis of mono- and dibromo-substituted thieno[2,3-b]indoles 12n,o.