Synthesis 2013; 45(7): 971-977
DOI: 10.1055/s-0032-1318273
paper
© Georg Thieme Verlag Stuttgart · New York

Recyclization in the Series of Spiro[indole-3,5′-pyrimido[4,5-b]quinoline]-2,2′,4′-triones Prepared by a Three-Component Reaction of Isatins with (Thio)barbituric Acids and Electron-Rich Anilines

Viktor O. Iaroshenko*
a   Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany   Email: viktor.iaroshenko@uni-rostock.de   Email: iva108@googlemail.com
b   National Taras Shevchenko University, 62 Volodymyrska Str., 01033 Kyiv, Ukraine
,
Sergii Dudkin
a   Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany   Email: viktor.iaroshenko@uni-rostock.de   Email: iva108@googlemail.com
,
Vyacheslav Ya. Sosnovskikh
c   Department of Chemistry, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
,
Alexander Villinger
a   Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany   Email: viktor.iaroshenko@uni-rostock.de   Email: iva108@googlemail.com
,
Peter Langer
a   Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany   Email: viktor.iaroshenko@uni-rostock.de   Email: iva108@googlemail.com
d   Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert Einstein Str. 29a, 18059 Rostock, Germany
› Author Affiliations
Further Information

Publication History

Received: 10 December 2012

Accepted after revision: 30 January 2013

Publication Date:
14 February 2013 (online)


Abstract

A ring–ring transformation in the series of spiro[indole-3,5′-pyrimido[4,5-b]quinoline]-2,2′,4′-trione derivatives prepared by a three-component reaction of (thio)barbituric acids, electron-rich aromatic amines, and isatins was observed.

Supporting Information