RECYCLIZATION OF 2-IMINO-2H-1-BENZOPYRANS UNDER THE ACTION OF NUCLEOPHILIC REAGENTS. 5. INTERACTION OF 2-IMINOCOUMARIN-3-CARBOXAMIDE WITH ANTHRANILIC ACID AND ITS DERIVATIVES

Abstract

N-Substituted 2-iminocoumarins are formed on reacting 2-iminocoumarin-3-carboxamide with anthranilic acid, methyl anthranilate, anthranilamide, and anthranilonotrile. Depending on the reaction conditions these recyclize into the corresponding 3-substituted coumarins or are hydrolyzed to coumarin-3-carboxamide. An alternative synthesis of some of the compounds has been effected.

Authors: S. N. Kovalenko, I. E. Bylov, Ya. V. Belokon', and V. P. Chernykh.

English Translation in Chemistry of Heterocyclic Compounds, 2000, 36 (9), pp 1026-1031

http://link.springer.com/article/10.1023/A%3A1002773613250