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Beilstein J. Org. Chem. 2026, 22, 535–546, doi:10.3762/bjoc.22.39
Graphical Abstract
Figure 1: Structures of isomeric melifoliones and corresponding oxidation products.
Scheme 1: Synthesis of melifoliones and by-products: a) pyridine/60 °C/8 h/51%, b) microwave/140 °C/20 min/70...
Figure 2: Structure of iodized melifoliones.
Scheme 2: Reaction of melifolione A (1) with iodosobenzene diacetate.
Scheme 3: Hypothetical pathway for the oxidative ring contraction of melifolione A (1) with ferricyanide/hydr...
Figure 3: Left Part: 11 (main fraction); Right part: 12 (side product).
Scheme 4: Oxidative ring contraction of melifolione B (2).
Scheme 5: Alternative routes to the spirofuranones 11 and 12 via hypothetical pyranone epoxides 13 and 14.
Beilstein J. Org. Chem. 2016, 12, 2055–2064, doi:10.3762/bjoc.12.194
Figure 1: Thienyl-bridged oligophenothiazines as topological hybrids of (oligo)phenothiazines and 2,5-di(hete...
Scheme 1: One-pot bromine-lithium-exchange-borylation-Suzuki (BLEBS) synthesis of 7-bromo-substituted phenoth...
Scheme 2: Pseudo five-component Sonogashira-Glaser-cyclization synthesis of thienyl-bridged oligophenothiazin...
Figure 2: Cyclic voltammograms of compounds 3 (recorded in CH2Cl2, T = 293 K, electrolyte n-Bu4N+PF6−, Pt wor...
Figure 3: UV–vis (solid lines) and fluorescence spectra (dashed lines) of the thienyl-bridged oligophenothiaz...
Figure 4: DFT-calculated minimum conformer of the 2,5-bis(terphenothiazinyl)thiophene 3c (calculated with the...
Figure 5: Relevant Kohn–Sham FMOs contributing to the S1 states that are assigned to the longest wavelengths ...