In search of novel effective potent therapeutic agents delivered by oral route for inflammation treatment, some novel O-propargylated-N-acetylpyrazole analogs (5a-j) were prepared by treating N-acetylpyrazole (4a-j) derived from 1,3-diarylpropenones (3a-j) with propargyl bromide. Claisen-Schmidt condensation of a series of substituted aryl ketones 1 and benzaldehydes 2 in glacial acetic acid af...

A series of copper(II) complexes of mixed ligands with Schiff bases derived from 2-aminophenol/2-aminobenzoic acid with substituted benzaldehydes and 1,10-phenonthroline have been synthesized. Microanalytical, magnetic susceptibility, IR, UV-vis, CV, ESR and mass spectral techniques have been used to confirm the structure of these complexes. Their low electrical conductance values indicate that...

Abstract The enaminone, (2 E )-3-(dimethylamino)-1-(3,4,5-trimethoxyphenyl) prop-2-en-1-one was prepared by refluxing 3,4,5-trimethoxy acetophenone with dimethylformamide dimethylacetal (DMF–DMA) without solvent for 12 h. dihydropyrimidinone derivatives (1–9) were reacting substituted benzaldehydes and urea in glacial acetic acid. compounds synthesized significant yield using one step multicomp...

Novel copper complexes of 2-aminobenzothiazole derivatives were synthesized by the condensation of knoevengal condensate acetoacetanilide (obtained from substituted benzaldehydes and acetoacetanilide) and 2-aminobenzothiazole. They were thoroughly characterized by elemental analysis, IR, H-NMR, UV-Vis., molar conductance, magnetic moment and electrochemical studies. The UV-Vis., spectral study ...

The olefination of aldehydes constitutes a most valuable and widely adopted strategy for constructing carbon-carbon double bonds in organic chemistry. While various synthetic methods have been made available for this purpose, no biocatalysts are known to mediate this transformation. Reported herein is that engineered myoglobin variants can catalyze the olefination of aldehydes in the presence o...

Catalysts are frequently used as pelletized powdered materials, but rarely thin films. The present work reports the use of 2D h-boron nitride on few layers defective graphene (h-BN/fl-G) films about 10 nm thickness base catalyst for synthesis benzoxazoles by coupling a 2-amino-phenol with p-substituted benzaldehydes. benzoxazole derivatives has aroused much interest in last decades due to their...

Quinones such as 1,4-naphthoquinones are abundant in nature and naphthoquinone based natural products are known to possess anticancer activity. This pharmacophore is known to convey anticancer activity to some drugs such as streptonigrin, mitomycin A, etc. We synthesized and characterized different classes of naphthoquinone derivatives including bis naphthoquinone, 2-arylaminonaphthoquinone, be...

The reaction between barbituric acid or 2-thiobarbituric acid and different benzaldehydes, dependent upon the applied reaction conditions, selectively yields three different product types, i.e. 5-benzylidene(thio)barbituric acids II, symetric Michael adducts III or 5-phenyl-1H-pyrano[2,3-d]pyrimidine-2,4(3H,5H)-diones and 5-phenyl-2-thioxo-2,3-dihydro-1H-pyrano[2,3-d]pyrimidin-4(5H)-ones IV. Th...