![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A convenient, eco-friendly, and efficient method for synthesis of bis(3-indolyl)methanes by the reaction of indoles with various aromatic aldehydes “on-water” has been developed. The attractive features of this method are that in cases of aldehydes which are easily oxidized to acids, no external catalyst is necessary while in other cases a trace amount (ca. 5 mol%) of commercially available and inexpensive catalyst benzoic acid is sufficient to give good to excellent yield of products.
Acknowledgements
Financial assistance from the UGC-CAS and DST-PURSE programs, Department of Chemistry, Jadavpur University, is gratefully acknowledged. The authors also thank Prof. D. Mal, Department of Chemistry, IIT, Khargarpur, and the DST-FIST program to the Department of Chemistry, Jadavpur University for providing the NMR spectral data. CG is thankful to UGC, New Delhi, for a Research Fellowship.