Issue 8, 1998

Synthèse de nouvelles spiro-rhodanine-pyrazolines par addition dipolaire-1,3 de la diphe′nylnitrilimine sur quelques 5-arylidènerhodanines en ‘milieu sec’ et sous irradiation micro-onde

Abstract

Nous de′crivons la synthèse de nouvelles spiro-rhodanine-pyrazolines par addition dipolaire-1,3 de la diphe′nylnitrilimine sur alumine en milieu sec sous irradiation micro-onde avec les 5-arylidènerhodanines. Ces dernières sont e′galement pre′pare′es via une me′thode plus ge′ne′rale par condensation des de′rive′s de la rhodanine avec les alde′hydes sur alumine ou montmorillonite KSF sans solvant sous champ micro-onde. Les re′actions sont largement favorise′es sur support inorganiques et les effets thermiques des micro-ondes sont mis en e′vidence par comparaison avec le chauffage conventionnel. Synthesis of new spiro-rhodanine-pyrazolines from the 1,3-dipolar addition of diphenylnitrilimine to some 5-arylidenerhodanines on solid inorganic supports in ‘dry media’ and under microwave irradiation. We describe the synthesis of new spiro-rhodanine-pyrazolines from the 1,3-dipolar addition of diphenylnitrilimine to some 5-arylidenerhodanines on solid inorganic supports in ‘dry media’ and under microwave irradiation. The 5-arylidenerhodanines are prepared by the condensation of derivatised rhodanines with aldehydes on alumina or montmorillonite KSF support without solvent under microwave irradiation. Thermal effects of microwaves are displayed by comparison with classical heating.

Article information

Article type
Paper

New J. Chem., 1998,22, 809-812

Synthèse de nouvelles spiro-rhodanine-pyrazolines par addition dipolaire-1,3 de la diphe′nylnitrilimine sur quelques 5-arylidènerhodanines en ‘milieu sec’ et sous irradiation micro-onde

A. Ben-Alloum, S. Bakkas, K. Bougrin and E. Mohamed Soufiaoui, New J. Chem., 1998, 22, 809 DOI: 10.1039/A803447H

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