Chemical composition and biological activities of leaf and fruit essential oils from Eucalyptus camaldulensis.

The chemical composition of the essential oils from the leaves and fruit of Eucalyptus camaldulensis grown in Mersin, Turkey was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) techniques. The biological activities (antibacterial and antifungal) were examined using the agar well diffusion method. The main leaf oil constituents were p-cymene (42.

Synthesis, antibacterial and antifungal activity of some new thiazolylhydrazone derivatives containing 3-substituted cyclobutane ring.

A series of Schiff bases, combining 2,4-disubstituted thiazole and cyclobutane rings, and hydrazone moieties in the same molecule, was synthesized, characterized and evaluated for screening antibacterial and antifungal activities on microorganisms, respectively, on four bacteria and Candida tropicalis. The structures of original compounds were confirmed by analytical and spectroscopic (FT-IR, (1)H NMR and (13)C NMR) methods and elemental analysis. Both the antibacterial and antifungal activities and MIC values of compounds were reported.

The synthesis and antimicrobial activity of some new methyl N-arylthiocarbamates, dimethyl N-aryldithiocarbonimidates and 2-arylamino-2-imidazolines.

Methyl N-arylthiocarbamates (2a-d) and dimethyl N-aryldithiocarbonimidates (2e-i) were synthesized from the reaction of aromatic amines with carbon disulfide and methyl iodide and NaOH in various quantitative amounts. 2-Arylamino-2-imidazolines (3a-i) were prepared by heating both methyl N-arylthiocarbamates (2a-d) and dimethyl N-aryldithiocarbonimidates (2e-i) with 1,2-diaminoethane under reflux. o-chlorobenzyl derivatives of [1,3,4]-thiadiazole-2-yl substituted aminoimidazoline compounds were synthesized by treatment of [1,3,4]-thiadiazole-2-yl substituted aminoimidazolines (3h-i) with 2-benzyl chloride in basic medium and DMSO.