Excited State Intramolecular Proton Transfer in π-Expanded Phenazine-Derived Phenols

J Piechowska, K Virkki, B Sadowski…

Index: Piechowska, Joanna; Virkki, Kirsi; Sadowski, Bartlomiej; Lemmetyinen, Helge; Tkachenko, Nikolai V.; Gryko, Daniel T. Journal of Physical Chemistry A, 2014 , vol. 118, # 1 p. 144 - 151

Full Text: HTML

Citation Number: 14

Abstract

Two previously inaccessible analogs of 10-hydroxybenzo [h] quinoline were prepared via a straightforward strategy comprising the formation of π-expanded phenazines skeleton followed by C–H acetoxylation at position 10. Two bis-phenols possessing C 2 and D 2 symmetry were obtained in yields of 52% and 15%, respectively. The occurrence of excited state intramolecular proton transfer (ESIPT) was detected in all cases because steady ...