… polycyclic acridines. Part 1. Synthesis of 7H-pyrido-and 8H-quino-[4, 3, 2-kl] acridines by Graebe–Ullmann thermolysis of 9-(1, 2, 3-triazol-1-yl) acridines: application …

DJ Hagan, E Giménez-Arnau, CH Schwalbe…

Index: Hagan, Damien J.; Gimenez-Arnau, Elena; Schwalbe, Carl H.; Stevens, Malcolm F. G. Journal of the Chemical Society - Perkin Transactions 1, 1997 , # 18 p. 2739 - 2746

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Citation Number: 42

Abstract

The thermal decomposition of a series of acridines substituted in the 9-position with 1, 2, 3- triazol-1-yl, benzotriazol-1-yl and naphthotriazol-1-yl groups has been studied by differential scanning calorimetry. Whereas the monocyclic triazole 7a shows a discrete melting endotherm followed by a decomposition exotherm corresponding to formation of the 7H- pyrido [4, 3, 2-kl] acridine 8, in the benzotriazoles 10a–e and naphthotriazole 10f these ...