"2-Pyridinecarboxaldehyde(C6H5NO) can be used to detect nitrogen ions in alkaline fusion tests.
In the presence of cyanide ions, a bright yellow colour appears."
What is the equation of this reaction?
I would appreciate you if you have any information about this and share it with me.
I cant find this reaction.
Well, by doing a brief research I couldn't find anything concerning this alkaline smelting test, thus, I can't guarantee to be on the right way. However, I know that cyanide ions catalyse the benzoin condensation, which might be the answer to your question.
2 C5H4N-CHO --> C5H4N-CO-CH(OH)-C5H4N
Likely, the product is yellow.
The cyanide test and the associated problems are cited in
Tetrahedron Letters No. 9, pp 691 - 694, 1974 (attached)
E. J. Poziomek, M. E. Kronenberg, and E. Havinga, Rec. Trav. Chim. Pays-Bas., 2, 834 (1966).
The cyanide test and the associated problems are cited in
Tetrahedron Letters No. 9, pp 691 - 694, 1974 (attached).
They give this reference for the test :
E. J. Poziomek, M. E. Kronenberg, and E. Havinga, Rec. Trav. Chim. Pays-Bas., 2, 834 (1966) (attached)
Jean-François Gal I appreciate you for sharing this article.
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