Events The 12th International Electronic Conference on Synthetic Organic Chemistry

Event submissions

Published

This submission belongs to the session a. General Organic Synthesis of the event The 12th International Electronic Conference on Synthetic Organic Chemistry

Published date

07 Nov, 2008

Citation

Carla M. A. Alves, Paulo J. G. Coutinho, M. Sameiro T. Gonçalves, Synthesis and photophysical characterisation of long alkyl side-chain derivatives of benzo[a]phenoxazinium salts, in Proceedings of The 12th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2008, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-12-01229

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Synthesis and photophysical characterisation of long alkyl side-chain derivatives of benzo[a]phenoxazinium salts

Carla M. A. Alves ¹

Paulo J. G. Coutinho ²

M. Sameiro T. Gonçalves ¹

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

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

Abstract

Several fluorescent benzo[a]phenoxazinium chlorides possessing a long hydrocarbon chain terminated with methyl, hydroxyl, carboxylic acid or ester groups as substituent at the 5-amino function of the heterocycle were efficiently synthesised. Studies of their photophysical properties revealed that all compounds absorbed and emitted at longer wavelengths with moderate to good fluorescent quantum yields.

Keywords

Benzo[a]phenoxazines

Fluorescent labels

Functionalised fluorophores

Longwavelength fluorophores

Convenient synthesis of some methyl-N-[2-(6-oxo-3-p-tolyl-5,6-dihydro-4H-pyridazin-1-yl)-acetamide]alkanoates

Highly Regioselective Synthesis of Functionalized Aminonitriles Starting from 2-(w-cyanoalkyl)aziridines