Author/Authors :
El-Sayed، Mardia نويسنده Applied Organic Chemistry Department, National Research Centre, Cairo, Egypt , , Mahmoud، Kazem نويسنده Research group of Drug Development and Analysis, Institute of Pharmacy, Martin-Luther University-Halle, Weitenberg, Halle (Saale), Germany , , Hilgeroth، Andreas نويسنده Research group of Drug Development and Analysis, Institute of Pharmacy, Martin-Luther University-Halle, Weitenberg, Halle (Saale), Germany ,
Abstract :
Glacial acetic acid as a protic acid was employed as a catalyst in a solvent free condition for facile preparation of di(indolyl)methanes (DIMs) via one-pot condensation of indole with aryl or heteroaryl aldehydes. Various aryl and heteroaryl aldehydes were efficiently converted to the corresponding di(indolyl)methanes (1a-p) in high yields. The described novel synthetic method proposes several advantages of safety, mild condition, short reaction times, high yields, simplicity and the inexpensively glacial acetic acid compared to other catalysts.
