Download PDF
Synthesis 1987; 1987(2): 196-197
DOI: 10.1055/s-1987-27889
communication
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

Ring Closure of Heterocyclic Systems by Potassium-Graphite Intercalat - C8K

Dov Tamarkin* , Yoram Cohen, Mordecai Rabinovitz
  • *Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
Further Information

Publication History

Publication Date:
12 September 2002 (online)

 PDF Download  Permissions and Reprints All articles of this category

Potassium-graphite intercalate C8K is the reagent of choice for the ring closure of the dianions of 2,3-diarylquinoxalines derivatives 1-3 to the dianions of dibenzo[a,c]phenazine derivatives 4-6 in high yields and high degree of purity. This process appears to occur via a thermal electrocyclic process of the dianions.