Events The 10th International Electronic Conference on Synthetic Organic Chemistry

Event submissions

Published

This submission belongs to the session a. General Organic Synthesis of the event The 10th International Electronic Conference on Synthetic Organic Chemistry

Published date

30 Nov, 2006

Citation

Vânia H. J. Frade, João C.V. P. Moura, M. Sameiro T. Gonçalves, Synthesis and spectral characterisation of naphtho[2,3-a]phenoxazinium salts, in Proceedings of The 10th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2006, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-10-01410

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Synthesis and spectral characterisation of naphtho[2,3-a]phenoxazinium salts

Vânia H. J. Frade ¹

João C.V. P. Moura ¹

M. Sameiro T. Gonçalves ¹

1. Centro de Química, Universidade do Minho, Gualtar, 4710-057 Braga, Portugal

Abstract

A series of new functionalised naphtho[2,3-a]phenoxazinium chlorides was synthesised by condensation of 5-ethylamino-2-nitrosophenol hydrochloride with 1-aminoanthracene and its N-substituted derivatives. These cationic dyes showed maximum absorption in the range between 590 and 647 nm and strong fluorescence with maximum emission wavelengths between 630 and 674 nm, as well as high fluorescent quantum yields in ethanol and water at physiological pH.

Keywords

n/a

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