Cyansäureester. 35. Über Bildung und Folgereaktionen von N??Cyanatophthalimid. Neue spezifisch aktivierte und blockierte Isatosäurederivate

…, K Nadolski, E Gründemann

Index: Martin, Dieter; Nadolski, Karin; Gruendemann, Egon Journal fuer Praktische Chemie (Leipzig), 1984 , vol. 326, # 5 p. 737 - 746

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Abstract

Abstract. Depending on the reaction conditions N-hydroxy-phthalimide affords on treatment with cyanogen bromide via N-cyanato phthalimide 2 the iminocarbonate 3 and isatoic acid derivatives 7 and 16. Both tho latter react with nucleophiles as isatoic acid derivatives activated on the carboxylic group and protected on the carbamic group or vice vcrsa, famishing N, N-bis alkoxycnrbonyl anthranilic acid amides 9, N-alkoxycarbonyl anthranilic ...