Pyrazolines, which are nitrogen including five-membered heterocyclic structures, have been used in the organic and pharmaceutical industries. This study aimed was to synthesize characterizes new series of 3,5-diphenyl-4,5-dihydro-1H-pyrazole derivatives. The pyrazoline compounds synthesized from chalcones hydrazine hydrate two steps. In first step, were 2-amino acetophenone various substituted ...

Cycloalkanones were utilized in the Lewis acid catalyzed peroxyacetalization of ss-hydroperoxy homoallylic alcohols (prepared by the ene reaction of the allylic alcohols mesitylol and methyl 4-hydroxytiglate, respectively, with singlet oxygen) to give spiroannulated 1,2,4-trioxanes 5a-5e and 9a-9e, respectively. A second series of 3-arylated trioxanes 10a-10h, that are available from the hydrop...

UNLABELLED BACKGROUND The design and applications of antimicrobial polymers is a growing field. Antimicrobial polymers can help to solve the problems associated with the use of conventional antimicrobial agents. Polymers with active functional groups can act as a carrier system for antimicrobial agents. In our study, we aim to prepare and develop some antimicrobial polymers for biomedical ap...

The study of biopolymers and their derivative materials had received a considerable degree attention from researchers in the preparation novel material. Biopolymers derivatives have wide range applications as result bio-compatibility, bio-degradability non-toxicity. In this paper, chitosan reacted with different aldehydes(2,4 –dichloro- benzaldehyde or 2-methyl benzaldehyde), ketones (4-bromoac...

A rhodium(III)-based catalytic system has been used to develop a C−H bond activation of benzaldehyde derivatives and subsequent functionalization with dioxazolones in order afford imides. The importance the nature directing group perform selectively aldehydic highlighted. scope investigation showed that this transformation could be applied various many as well an acrolein derivative. Derivatiza...

The palladium (II) bis-chelate Pd (L(1-3))(2) and platinum (II) tetranuclear Pt(4)(L(4))(4) complexes of benzaldehyde thiosemicarbazone derivatives have been synthesized, and characterized by elemental analysis and IR, FAB(+)-mass and NMR ((1)H, (13)C) spectroscopy. The complex Pd(L(2))(2) [HL(2) = m-CN-benzaldehyde thiosemicarbazone] shows a square-planar geometry with two deprotonated ligands...

In this study, 1-(5-Methyl-1-(p-tolyl)-1H-1,2,3-triazol-4-yl)ethan-1-one, was reacted with Thiosemicarbazide, alkyl carbodithioate and benzaldehyde to give thiosemicarbazone, alkylidenehydrazinecarbodithioate and 3-phenylprop-2-en-1-one-1,2,3-triazole derivatives. The 1,3,4-thiadiazole derivatives containing the 1,2,3-triazole moiety were obtained via reaction of alkylidenecarbodithioate with h...

In the present study, some new bis-imidazole derivatives have been prepared through four-components condensation of 2,6-bis (4-aminophenyl)-4-p-tolylpyridine, benzaldehyde derivatives, benzil and ammonium acetate in presence of acetic acid. The present methodology offers several advantages such as good yields, simple procedure, milder conditions and the possibility of introducing a v...

Cellulose bonded N-propyl diethylene tetra sulfamic acid (CBPDETSA) was successfully applied as a green and recyclable acidic catalyst for the synthesis of tetrahydrobenzo [a] xanthene-11-one as an important class of potentially bioactive compounds. The products are obtained by the coupling of 2-naphtol , cyclohexadione and aldehyde derivatives in good to high yields (70- 92%) under solvent-fre...