Some New American Biological Stations

A new horizon for biological field stations and marine laboratories.

Synthesis of Some New Heterocyclic Compounds with Potential Biological Activity

A series of new 2-arylimino-3-aryl-5-[5?-(3,4-dichlorophenyl)-2?-furylidene]-4-thiazolidinones (3a-l) have been synthesised by the condensation of 5-(3,4-dichlorophenyl)-2-furaldehyde 1 with 2-arylimino-3-aryl-5H-4-thiazolidinones 2 in glacial acetic acid. The physical and spectral data of the synthesised compounds are determined. The synthesised compounds have been screened for their in vitro ...

Synthesis,Characterization, Biological Evaluation and anti corrosion activity of some new bis-piperidone Derivatives

Aseries of piperidine derivatives was synthesis by the reaction between substituted benzaldhyde ,pentanone-3,and ammonium acetate by refluxining for 1-2 hr in ethanol and the derivatives refluxed with (4,4'-Diaminodiphenyl sulphone) yielded bispiperidine ,the structures of the synthesized compounds were confirmed by spectroscopy analysis , The reported compounds were screened for their antibact...

Synthesis of Some New Bisindole Derivatives and Their Biological Activity

Substituted 1,4-diaza-1,3-butadienes with 2 equivalents of 1,4-naphthoquinone in presence of ethanol or benzene produce corresponding substituted bisindoletetrones via criss-cross cycloaddition reaction. The chemical structure was confirmed by elemental and spectral analysis. Biological activity against some micro-organisms was tested.

Synthesis, characterization and biological evaluation of some new arylazopyrazoles

1-[(N-acetyl)2,3-dichloroanilinomalonyl]3,5-dimethyl-4-(unsubstituted/substituted phenylazo) pyrazoles have been synthesised in 34 to 65% yield, by the reaction of 2,4-diketo-3(unsubstituted/substituted phenylazo) pentane with Ethyl-2-[(N-acetyl)2,3-dichloroanilido] acetohydrazide. Pyrazoles are brown and yellow colour solids, having high melting points. Identity of products has been establishe...