Synthesis of benzannelated five-membered heteroaromatic compounds from 2,4,6-trinitrotoluene

Chemiluminescence detection of five-membered heteroaromatic compounds using electrogenerated tris(2,2'-bipyridine)-ruthenium(III).

Heteroaromatic compounds, such as 2,5-dimethylthiophene, 2,5-dimethylpyrrole, and 2,5-dimethylfuran, were found to act as reducing agents for the tris(2,2'-bipyridine)ruthenium(III), Ru(bpy)3(3+), chemiluminescent reaction. In order to characterize the chemiluminescent reaction of Ru(bpy)3(3+) with heteroaromatic compounds, we have investigated various mono-, di-, and tri-heteroaromatic compoun...

Gaseous SF(3)(+): An efficient electrophilic monofluorinating agent for five-membered heteroaromatic compounds

Reactions of gaseous SF(3)(+) ions with furan, thiophene, pyrrole, and several of their alkyl derivatives were performed via MS(2) experiments and found to occur readily both by electron abstraction and F(+) transfer. Then, by performing MS(3) experiments, the F(+) transfer products-the protonated monofluorinated molecules-were mass-selected and deprotonated by a second reaction with a stronger...

Construction of Five-Membered Heterocyclic Compounds via Radical Cyclization

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Asymmetric hydrogenation of heteroaromatic compounds.

Asymmetric hydrogenation of heteroaromatic compounds has emerged as a promising new route to saturated or partially saturated chiral heterocyclic compounds. In this Account, we outline recent advances in asymmetric hydrogenation of heteroaromatic compounds, including indole, quinoline, isoquinoline, furan, and pyridine derivatives, using chiral organometallic catalysts and organocatalysts.