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

Publisher： Bentham Science Publishers

E-ISSN： 1875-6255|5|2|82-86

ISSN： 1570-1786

Source： Letters in Organic Chemistry, Vol.5, Iss.2, 2008-03, pp. : 82-86

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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.

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