The direct dearomative addition of arenes to the C3 position unprotected indoles is reported under operationally simple conditions, using triflic acid at room temperature. present regioselective hydroarylation a straightforward manner generate an electrophilic indole from unbiased in sharp contrast previous strategies. This atom economical method delivers biologically relevant 3-arylindolines a...

The synthesis of a series halogen bonding (XB) acyclic anion receptors based on novel 1,2-iodo-triazolium-triazole benzene motif is reported. A combination one- and two-dimensional 1H 19F NMR spectroscopic techniques elucidate key conformational effects associated with the incorporation ortho-substituted iodo-triazole XB donors. titration experiments highlight recognition potency mono-cationic ...

Multiple synthetic pathways were explored for the preparation of ethynylarene-containing ferrocenylene macrocyles. Accordingly, synthesis novel bis- and tris-ferrocenylene macrocycles, containing a diethynylpyridine bridging group was achieved, evidence is also provided number linear-analogues formed as by-products. The electrochemical properties macrocycles examined, it shown that observable r...

A series of imidazolium and pyridinium-based bridged dicationic ionic liquids have been analysed using X-ray photoelectron spectroscopy. The different electronic environments the dications investigated a robust fitting model for carbon C1s region has also developed. relative positions components N1s determined their complex photoemission spectra produced from both aromatic aliphatic states givi...

A new catalytic system has been developed for hydrogen production from various monosaccharides, mainly glucose, as a starting material under reflux conditions in water the presence of water-soluble dicationic iridium complex bearing functional bipyridine ligand. For example, reaction D-glucose 20 h [Cp*Ir(6,6′-dihydroxy-2,2′-bipyridine)(H2O)][OTf]2 (1.0 mol %) (Cp*: pentamethylcyclopentadienyl,...

This study represent the synthesis and electrical conductivity of two focused dicationic pyridinium ionic liquids (DiILs) carrying tetrafluoroborate and/or hexafluorophosphate as counter anion. Thus, required quaternization pyridine nitrogen atoms first, followed by a metathetical exchange reaction to produce task-specific ILs bearing anions. The resulting DiILs were characterized NMR MS spectr...