Hydrogen-Bond-Catalyzed Arylation of 3-(Aminoalkyl)indoles via C–N Bond Cleavage with Thiourea under Microwave Irradiation: An Approach to 3-(α,α-Diarylmethyl)indoles
of 3-(aminoalkyl)indoles with aryl alcohols and other aromatic nucleophiles through C–N bond cleavage under microwave irradiation to synthesize 3-(α,α-diarylmethyl)indoles. The method uses thiourea as catalyst, which is environmentally benign, water-tolerant and easy to handle. Notably, acid-sensitive substrates are tolerated under the reaction conditions. Thiourea activates the tertiary amine through
One-pot sequential multi-component reaction: Synthesis of 3-substituted indoles
作者:Paran J. Borpatra、Bhaskar Deka、Basanta K. Rajbongshi、Mohit L. Deb、Pranjal K. Baruah
DOI:10.1080/00397911.2018.1482352
日期:2018.8.18
3-component one-pot sequential approach to 3-substituted indoles. The main advantages of this process are step economy, reduced waste, and operational simplicity. The method involves in situ generation of 3-indolylalcohols from the reaction of indoles and aldehydes in the presence of base. Further, nucleophilic substitution of 3-indolylalcohols with various nucleophiles affords 3-substituted indole derivatives
Solid‐State Synthesis of 4‐[(Indol‐3‐yl)‐arylmethyl]‐1‐phenyl‐3‐methyl‐5‐pyrazolones by Catalysis of Molecular Iodine
作者:Min Xia、Yuedong Lu
DOI:10.1080/00397910600640388
日期:2006.8
4-[(Indol-3-yl)-arylmethyl]-1-phenyl-3-methyl-5-pyrazolones could be smoothly and effectively obtained in good yields through the iodine-catalyzed reactions under solid-state conditions at room temperature. The three-component approach in a one-pot procedure was reported for the first time. A possible mechanism was suggested to elucidate the remarkable reaction selectivities.