75393-51-0Relevant academic research and scientific papers
Products from dehydration of dicarboxylic acids derived from anthranilic acid
Wiklund, Per,Romero, Ivan,Bergman, Jan
, p. 3396 - 3403 (2007/10/03)
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.
