Issue 19, 2003

Products from dehydration of dicarboxylic acids derived from anthranilic acid

Abstract

Treatment of N-(carboxymethyl)-anthranilic acids 1 with several dehydrating agents, gave the cyclic ortho amides 6, or the 7-membered anhydrides 7. After reaction of N-(carboxymethyl)-anthranilic acid (1a) with acetic anhydride, a diacetylated fused diketopiperazine indole dimer (18) could be isolated. Dehydrations of 2,2′-iminobis-benzoic acid led to the corresponding cyclic ortho amides 23. The dynamic behaviour of some of these compounds, and their precursors, was studied.

Graphical abstract: Products from dehydration of dicarboxylic acids derived from anthranilic acid

Supplementary files

Article information

Article type
Paper
Submitted
29 May 2003
Accepted
20 Aug 2003
First published
04 Sep 2003

Org. Biomol. Chem., 2003,1, 3396-3403

Products from dehydration of dicarboxylic acids derived from anthranilic acid

P. Wiklund, I. Romero and J. Bergman, Org. Biomol. Chem., 2003, 1, 3396 DOI: 10.1039/B306032B

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