The Department for Public Health and the Office of Drug Control Policy have issued a health alert, advising the public not to ...

ABSTRACT: It has been shown by 1H and 13C NMR spectroscopy that 2-mercaptobenzoyl-hydrazones of aliphatic and aromatic aldehydes exist in solution as tautomeric mixtures of linear and cyclic benzo-1,3 ...

This mini-review will focus on the preparation of accessible heterocycles building blocks from the vanillin ... and principally composed of carbohydrates (cellulose and hemicellulose) as well as ...

(9,10,42,43) In previous studies by our group, the interactions of aromatic heterocycles with benzene were investigated. (1) The benzene molecule mimics an aromatic amino acid side chain in the ...

A simple and efficient method using reduced amounts of solvents for the determination of polycyclic aromatic sulfur heterocycles (PASHs) in aqueous matrices from a lagoon and leachate solid waste from ...

Synthetic strategies of selected polycyclic carbocycles and heterocycles with at least three fused ... intramolecular Diels–Alder reaction at 160 °C. Nitrogen-containing aromatic rings especially ...

Heterocyclic compounds can be classified into aliphatic and aromatic compounds. Aliphatic heterocycles are cyclic analogs of amines, ethers, thioethers, amides and the like. Aromatic heterocyclic ...