8 research outputs found
A convenient synthesis of pyrandione derivatives using P-toluenesulfonic acid as catalyst under ultrasound irradiation
Get PDFA new series of 3,3'-{alkane-α,ω-diylbis[imino-eth-1-yl-1-ylidene]}bis(6-methyl-2H-pyran-2,4(3H)-dione) derivatives (3c-e) has been synthesized by the convenient ultrasound-mediated condensation of a diamine with dehydroacetic acid in the presence of a catalytic amount of p-toluenesulfonic acid. The structure of all synthesized compounds was elucidated by IR spectroscopy, 1H NMR spectroscopic spectra, elemental analysis, and mass spectroscopy. A tautomeric form for the derivatives species is also proposed.Keywords: Dehydroacetic acid; Schiff base; Condensation; Catalyst; Ultrasound irradiation; Tautomeris
Removal of phenol from aqueous solution using polymer inclusion membrane based on mixture of CTA and CA
No full textTemperature and additive coconut shell charcoal effect on density and porosity of ceramic membrane based on zeolite and clay
No full textPreparation of CTA-based polymer inclusion membrane using calix[4]arene derivative as a carrier for Cr(VI) transport
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