4-Chloro-5,7-dinitrobenzofurazan and 7-chloro-4,6-dinitrobenzofuroxan-new spary reagents for the detection of amino compounds on thin-layer plates

摘要

4-Chloro-5,7-dinitrobenzofurazan (benz-2,1,3-oxadiazole) and 7-chloro-4,6-dinitrobenzofuroxan (benz-2,1,3-oxadiazole N-oxide) are reported as a spray reagents for the detection of amino compounds on thin-layer chromatography plates. The reagents produce different colors with primary, secondary, and tertiary amino compounds. These colors can be used for direct identification of some of the compounds, and to assist in their detection.