3 article(s) from Fagnoni, Maurizio
Graphical Abstract
Scheme 1: Synthesis of biarenes via a) photogenerated triplet aryl cations and aryl radicals (PC = photocatal...
Scheme 2: Metal-free photochemical synthesis of biaryls 2 and 4.
Figure 1: Emission spectrum of compound 1e (red) and of diethyl p-tert-butylphenyl phosphate (black) in metha...
Figure 2: Emission spectrum of compound 1h (red) and of diethyl p-cyanophenyl phosphate (black) in methanol.
Figure 3: Emission spectrum of compound 3a in methanol (black) and in a methanol/TFE 4:1 mixture (red).
Figure 4: Emission spectrum of 3c in MeOH (dotted line) and in the presence of increasing amounts of TFE (up ...
Scheme 3: Photoreactivity of aryl phosphates 1 and 3 in protic media.
Graphical Abstract
Figure 1: Bioactive phenanthridine and phenanthridinium derivatives.
Scheme 1: Synthesis of phenanthrenes by a photo-Pschorr reaction.
Scheme 2: Synthesis of phenanthrenes by a benzannulation reaction.
Scheme 3: Photocatalytic cyclization of α-bromochalcones for the synthesis of phenanthrenes.
Figure 2: Carbon-centered and nitrogen-centered radicals used for the synthesis of phenanthridines.
Scheme 4: General scheme describing the synthesis of phenanthridines from isocyanides via imidoyl radicals.
Scheme 5: Synthesis of substituted phenanthridines involving the intermediacy of electrophilic radicals.
Scheme 6: Photocatalyzed synthesis of 6-β-ketoalkyl phenanthridines.
Scheme 7: Synthesis of 6-substituted phenanthridines through the addition of trifluoromethyl (path a), phenyl...
Scheme 8: Synthesis of 6-(trifluoromethyl)-7,8-dihydrobenzo[k]phenanthridine.
Scheme 9: Phenanthridine syntheses by using photogenerated radicals formed through a C–H bond homolytic cleav...
Scheme 10: Trifluoroacetimidoyl chlorides as starting substrates for the synthesis of 6-(trifluoromethyl)phena...
Scheme 11: Synthesis of phenanthridines via aryl–aryl-bond formation.
Scheme 12: Oxidative conversion of N-biarylglycine esters to phenanthridine-6-carboxylates.
Scheme 13: Photocatalytic synthesis of benzo[f]quinolines from 2-heteroaryl-substituted anilines and heteroary...
Scheme 14: Synthesis of noravicine (14.2a) and nornitidine (14.2b) alkaloids.
Scheme 15: Gram-scale synthesis of the alkaloid trisphaeridine (15.3).
Scheme 16: Synthesis of phenanthridines starting from vinyl azides.
Scheme 17: Synthesis of pyrido[4,3,2-gh]phenanthridines 17.5a–d through the radical trifluoromethylthiolation ...
Scheme 18: The direct oxidative C–H amidation involving amidyl radicals for the synthesis of phenanthridones.
Graphical Abstract
Scheme 1: Photoinduced electron transfer as an access to radical chemistry.
Figure 1: Reduction potential (versus SCE) of the ground and excited state of acceptors and oxidation potenti...
Figure 2: UV-monitoring of: (a) a 2 × 10−4 M solution of TCB in the presence of Bu4Sn (10−2 M) and (b) a 1.5 ...
Figure 3: Absorption spectra of a freeze–pump–thaw deoxygenated MeCN solution irradiated at 313 nm of (a) 1,2...
Scheme 2: Mechanistic scheme.
Figure 4: Thermodynamics of the redox processes discussed (solid arrows represent exergonic electron donation...