Events The 13th International Electronic Conference on Synthetic Organic Chemistry

Event submissions

Published

This submission belongs to the session a. General Organic Synthesis of the event The 13th International Electronic Conference on Synthetic Organic Chemistry

Published date

31 Oct, 2009

Citation

M. Sameiro T. Gonçalves, Paulo J. G. Coutinho, Sarala Naik, N-Alkyl-N-[5-(propylamino)-9H-benzo[a]phenoxazin-9-ylidene]alkan-1- aminium chlorides: synthesis and photophysical studies, in Proceedings of The 13th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2009, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-13-00184

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N-Alkyl-N-[5-(propylamino)-9H-benzo[a]phenoxazin-9-ylidene]alkan-1- aminium chlorides: synthesis and photophysical studies

M. Sameiro T. Gonçalves ¹

Paulo J. G. Coutinho ²

Sarala Naik ¹

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

2. Centro de Física, Universidade do Minho, Gualtar, 4710-057 Braga, Portugal

Abstract

Fluorescent benzo[a]phenoxazinium chlorides with dipropyl-, dioctyl- didecyl- and didodecyl-chains as the amino substituents of the 9-positions of the tetracyclic system were synthesised in moderate to good yields. All the compounds absorbed in the wavelength range of 638-641 nm and emitted at 673 or 676 nm with quantum yields of 0.17-0.19 in ethanol.

Keywords

Benzo[a]phenoxazinium dyes

Near-infrared fluorescence probes

Cationic dyes

Nile Blue derivatives

CRYSTAL STRUCTURE OF (N-N'-BIS(3-ETHOXYSALICYLIDENE)-1,2-DIAMINOPROPANE

METHYLENE INSERTION IN VINYLCUPRATES BEARING AN ALLYLIC SILYL GROUP