Tetrahedron Letters

A simple entry to novel spiro dihydroquinoline-oxindoles using Povarov reaction between 3-N-aryliminoisatins and isoeugenol

VV Kouznetsov, JSB Forero, DFA Torres

Index: Kouznetsov, Vladimir V.; Bello Forero, Josue S.; Amado Torres, Diego F. Tetrahedron Letters, 2008 , vol. 49, # 41 p. 5855 - 5857

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Citation Number: 34

Abstract

An easy, fast, and cheap way for the synthesis of the new 4′-(4-hydroxy-3-methoxyphenyl)- 3′-methyl-3′, 4′-dihydro-1′ H-spiro [indoline-3, 2′-quinolin]-2-ones using BF3 OEt2- promoted imino Diels–Alder cycloaddition between ketimine-isatin derivatives and trans- isoeugenol.