شماره ركورد كنفرانس :
4100
عنوان مقاله :
Piperazine, an efficient base catalyst for the one-pot synthesis of 3,4-dihydropyrano[3,2-c]chromene derivatives
پديدآورندگان :
Irani Sharmin Sharminonredline@gmail.com Chemistry Department, The University of Sistan and Baluchestan, P. O. Box 98135-674, Zahedan, Iran , Maghsoodlou Malek Taher Chemistry Department, The University of Sistan and Baluchestan, P. O. Box 98135-674, Zahedan, Iran.
كليدواژه :
3 , 4 , dihydropyrano[3 , 2 , c]chromenes , piperazine , ambient temperature
عنوان كنفرانس :
اولين همايش ملي توسعه در علوم و صنايع شيميايي
چكيده فارسي :
An efficient and simple protocol for the one-pot three-component synthesis of 3,4-dihydropyrano[3,2-c]chromenes (4) is described, via the reaction of aromatic aldehydes (1), malononitril (2) and 4-hydroxycumarin (3) in the presence of 10 mol% of piperazine as catalyst, in ethanol (EtOH) at ambient temperature. Short reaction times, environmentally friendly procedure and excellent yields are the main advantages of this procedure, which makes it more economical than other environment-friendly methods.
