4.4 Article

An efficient synthesis of spiro[dibenzo[b,i]xanthene-13,3′-indoline]-pentaones and 5H-dibenzo[b,i]xanthene-tetraones

Journal

TETRAHEDRON LETTERS
Volume 49, Issue 35, Pages 5165-5168

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.06.077

Keywords

isatin; 2-hydroxynaphthalene-1,4-dione; spiro[dibenzo[b,i]xanthene-13,3 '-indoline]-pentaone; 5H-dibenzo[b,i]xanthene-tetraone

Funding

  1. Research Council of Shahid Beheshti University

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Spiro[dibenzo[b,i]xanthene-13,3'-indoline]-pentaones and 5H-dibenzo[b,i]xanthene-tetraones are synthesized from the condensation of 2-hydroxynaphthalene-1,4-dione with isatins or aldehydes. (C) 2008 Published by Elsevier Ltd.

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