A convenient synthesis of pyrandione derivatives using P-toluenesulfonic acid as catalyst under ultrasound irradiation | Zendy

Nadjib Benosmane | Zendy; Baya Boutemeur | Zendy; Safouane M. Hamdi | Zendy; Maǎmar Hamdi | Zendy

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A convenient synthesis of pyrandione derivatives using P-toluenesulfonic acid as catalyst under ultrasound irradiation

Author(s) -

Nadjib Benosmane,

Baya Boutemeur,

Safouane M. Hamdi,

Maǎmar Hamdi

Publication year - 2018

Publication title -

journal of fundamental and applied sciences

Language(s) - English

Resource type - Journals

ISSN - 1112-9867

DOI - 10.4314/jfas.v8i3.9

Subject(s) - dehydroacetic acid , tautomer , chemistry , catalysis , elemental analysis , p toluenesulfonic acid , condensation , organic chemistry , condensation reaction , heteropoly acid , pyran , nuclear chemistry , medicinal chemistry , polymer chemistry , physics , thermodynamics

A new series of 3,3'-{alkane-α,ω-diylbis[imino-eth-1-yl-1-ylidene]}bis(6-methyl-2 H -pyran-2,4(3 H )-dione) derivatives (3c-e) has been synthesized by the convenient ultrasound-mediated condensation of 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, 1 H NMR spectroscopic spectra, elemental analysis, and mass spectroscopy. A tautomeric form for the derivatives species is also proposed.

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