p,p'-Dimethoxydibenzoylmethane 1 combines with oxalyl chloride 2 to yield novel furan-2,3-dione 3. Thermal transformation is supposed to occur by the ring opening of the 3 followed by the intermediate p,p'-dimethoxydibenzoylketene ...

3-Methyl-4,1-benzoxazepine-2.5-dione (I) when stirred for lr hours in methanolic solution with a few drops of 10 %. NaOH below 60 degreesC gave solid crystalline product (m.p. 100-102 degreesC, 51% yield). H-1 NMR and MS ...

Adsorption of aliphatic organic acid, such ar Formic, Acetic, Propionic and n-Butyric acids fi om aqueous solutions on the surface of granular activated charcoal was studied as a function of stirring time, concentration ...

Three new dinuclear copper(II) complexes of 2-mino-3-methylpyridine has been prepared and characterized by spectroscopic, magnetic and elemental analysis. Complex [Cu-2(2-amino-3-methylpyridine)(4)(OCH3)(2)] (NO3)(2) were ...

A comprehensive study of the Pseudo-first order rate constants K-0 (sec(-1)) for uncatalysed reaction and the thermodynamic parameters for alkyl formates HCOOR in neutral medium in the temperature range (293-343 K) has ...

Industrial effluents collected from different industries of I-9 sector Islamabad were examined for different physical parameters such as pH, SS, TDS, DS, DO and GOD. Various anions such as Cl-1, SO4--2NO3-1, NO2-1 and ...

A capillary gas chomatographic method has boar developed for the determination of vanadium from rock samples. It is based on complexation of analyte by bis (acetylpivalylmethane) ethylanediimine (H(2)APM(2)en) followed by ...

A bench scale hydrometallurgical method is proposed for the detection nd removal of copper from the effluents discharged by various industries into Kabul Rivet. The conditions, rob as, effect of cid concentration temperature ...