Author/Authors :
Benzekri، Zakaria نويسنده Laboratory of Organic Chemistry, Organometallic and Theoretical. Faculty of Sciences, Ibn Tofaïl University, BO 133, 14000 Kenitra, Morocco , , Serrar، Houdda نويسنده Laboratory of Organic Chemistry, Organometallic and Theoretical. Faculty of Sciences, Ibn Tofaïl University, BO 133, 14000 Kenitra, Morocco , , Boukhris، Said نويسنده Laboratory of Organic Chemistry, Organometallic and Theoretical. Faculty of Sciences, Ibn Tofaïl University, BO 133, 14000 Kenitra, Morocco , , Sallek، Brahim نويسنده Laboratoire d’Agroressources et Génie des Procédés. Faculté des Sciences, Université Ibn Tofaïl, 14000 Kenitra, Morocco , , Souizi، Abdelaziz نويسنده Laboratory of Organic Chemistry, Organometallic and Theoretical. Faculty of Sciences, Ibn Tofaïl University, BO 133, 14000 Kenitra, Morocco ,
Abstract :
A simple, efficient and general method for the synthesis of 4H-pyrans is established through a multi component cyclocondensation of aromatic aldehydes, malononitrile and ethyl acetoacetate or acetyl acetone using snail shell as a natural catalyst. In this method the snail shell was used as green and reusable natural catalyst. Excellent yields, short reaction times and availability of the catalyst are the advantages of this method.
