Affiliation:
1. Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur 342037 India
2. Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Korea
Abstract
AbstractIndolyl thioethers and indolin‐2‐one motifs are extremely common in pharmaceuticals and organic materials, therefore developing a method to create these scaffolds is considered to be a vital endeavour in the chemical sciences. Here we have reported a unified strategy developed by the fine‐tuning of catalyst‐solvent combination [SOCl2 /AlCl3 in CHCl3 and SOCl2/DMSO (1 : 1) in CHCl3 at 25 °C] towards selective functionalization of Indole to synthesize 2,2′‐thiobisindoles and 3‐chloro‐3‐alkyl substituted oxindoles selectively in one‐pot manner with good to satisfactory yield (52‐86 %; 26 Examples). In application, reactions of 3‐subsituted indole and isatin derivatives produced the 1‐(chloromethyl) indoline‐2,3‐diones by just changing the reaction condition (60 °C), which shows the synthetic utility of the developed method.
Funder
Indian Institute of Technology Jodhpur
Science for Equity, Empowerment and Development Division