Fluorescence-producing reactions carbonyl groups

Analytical Use of Fluorescence-Producing Reactions of Lipid- and Carbohydrate-Derived Carbonyl Groups with Amine End Groups of Polyamide Powder... 

In such reactions the substantial heat of the simultaneous (concerted) formation of the carbonyl groups produced meets the energy requirement (8,16). In the reaction shown (8), the product is the highly fluorescent excited state of 9,10-diphenylanthracene [1499-10-1] (2). It is not necessary for the new carbonyl groups to be a part of the stmcture of the excited product, only that the excited state be formed synchronously with two carbonyl groups. 

Several reagents for derivatization of carbonyl groups are also available. Dansylhydrazine reacts with carbonyl groups in the presence of trichloroacetic acid, yielding highly fluorescent dansylhydrazones that exhibit, however, limited stability. In addition, fluorescent hydrazones can be produced from carbonyl-containing compounds after their reaction with 4-hydrazino-2-oxa-l,3-diazole or... 

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