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7634848 
Journal Article 
Synthesis and fluorescent properties of new derivatives of 4-amino-7-nitrobenzofurazan 
Bem, M; Constantinescu, T; Balaban, AT; Badea, F; Draghici, C; Caproiu, MT; Vasilescu, M; Voicescu, M; Beteringhe, A; Caragheorgheopol, A; Maganu, M; , 
2007 
ARKAT USA INC 
GAINESVILLE 
2007 
13 
87-104 
WOS:000251574200012 
The following new compounds were obtained by reacting 4-chloro-7-nitrobenzofurazan (NBDCl, 1) with five primary amines: 3b with a benzo-crown ether 18C6; 3c with an N-(alpha-naphthyl)ethylenediamine group; 3d, with a 2,2,6,6-tetramethylpiperidin-N-oxyl group; 3e, with an alpha-picolyl group; and 3f, derived from tris(hydroxymethyl)aminomethanol. Also, from the reaction of 1 with N-methylhydroxylamine an N-hydroxy-N-methyl-NBD derivative (3g) was prepared. All these six new NBD derivatives 3b-g were studied (in comparison with the known compound 3a prepared from 1 and aniline) for their physical and chemical properties, with special emphasis on hydrophobicity, UV-Vis, fluorescence, using also structural studies trough QSPR.