Indium Trichloride Catalysed Imino Diels-Alder Reaction of Imesatins: A Facile Synthesis of Novel Spirooxindole 1H – pyrano[2,3-c ]quinolines

Title: Indium Trichloride Catalysed Imino Diels-Alder Reaction of Imesatins: A Facile Synthesis of Novel Spirooxindole 1H – pyrano[2,3-c ]quinolines

Volume: 5 Issue: 2

Author(s): R. Raghunathan, E. Ramesh and E. Elamparuthi

Affiliation:

Keywords: Indium chloride, imino Diels-Alder reaction, isatin, tetrahydroquinoline, spirooxindole

Abstract: A novel method for the construction of spirooxindole via imino Diels-Alder reaction of in situ generated isatin imine with dihydropyran is reported. InCl3 efficiently catalyzes the reaction to afford cis- and trans-diastereisomers in fairly good yields.

Cite this article as:

Raghunathan R., Ramesh E. and Elamparuthi E., Indium Trichloride Catalysed Imino Diels-Alder Reaction of Imesatins: A Facile Synthesis of Novel Spirooxindole 1H – pyrano[2,3-c ]quinolines, Letters in Organic Chemistry 2008; 5 (2) . https://dx.doi.org/10.2174/157017808783743948