Reaction of Phthalic Anhydride and Carboxylic Acid Hydrazide

Novel Reaction Scheme for the Selective Oxidation of o- Xylene to Phthalic Anhydride

The oxidation of o-xylene to phthalic anhydride is one of the important industrial processes based on selective oxidation reactions. For the last 50 years vanadia titania catalysts have been used in this process. The reaction parameters like temperature range of operation, reactor inlet pressure, contact time, etc. slightly changed during this continuous process optimization. However, the funda...

Synthesis of Anthranilic Acid and Phthalic Anhydride Ligand and their Metal Complexes

The compounds containing the complex ion or complex molecule in which central metal atom or ion is surrounded by a number of oppositely charged ions or molecules are known as co-ordination compounds [1], complex compound or simply complex. Coordination basically refers to the "coordinate covalent bonds" (dipolar bonds) between the ligands and the central atom in 1914, when first coordination co...

surface roughness of linear chain carboxylic acid anhydride modified wood

this study was carried out to investigate the effect of esterification on the surface roughness of eastern cottonwood. eastern cottonwood was modified without using any catalyst and solvent at different temperatures and times with two linear chain carboxylic acid anhydrides (acetic anhydride or propionic anhydride). different weight percentage gains (wpgs) were obtained at different conditions....

synthesis and characterization of hydrazide-hydrazone derivatives of 3-pyridine carboxylic acid as antimycobacterial tuberculosis agents

Synthesis and in Vitro Antiproliferative Screening of New 2,7-naphthyridine-3-carboxylic Acid Hydrazide Derivatives.

The new pyrrolo[3,4-c]pyridines and 2,7-naphthyridine derivatives have been synthesized. 4-Hydroxy-8-methyl-l-oxo-6-phenyl-1,2-dihydro-2,7-naphthyridine-3-carboxylic acid hydrazide (4) was the key intermediate for the synthesis of the novel derivatives of various chemical structures: Schiff bases, 1,3,4-oxadiazoles, pyrazoles, carbohydrazides, semi- and thiosemicarbazides. The structures of the...