Synthesis of nitronyl-and imino-nitroxide-triradicals interconnected by phenyl ethynyl spacer

…, P Turek, J Le Moigne, A De Cian, N Kyritsakas

Index: Catala, Laure; Turek, Philippe; Le Moigne, Jacques; De Cian, Andre; Kyritsakas, Nathalie Tetrahedron Letters, 2000 , vol. 41, # 7 p. 1015 - 1018

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Citation Number: 14

Abstract

The design and synthesis, as well as solid state and ESR characterisation of three new triradicals based on phenyl ethynyl backbone bearing nitronyl-nitroxide and imino-nitroxide groups, are reported. The synthesis of these compounds was based on palladium-coupling reactions between alkynyl and bromo derivatives. An ESR study showed magnetic interactions between the radicals through the phenyl ethynyl-coupling unit in solution.