In the last step of the synthesis of 1,2,4-triazole from acids hydrazides and isothiocyanates, 1 M HCl must be added to get the final product precipitated, by mistake I used concentrated HCl, the IR spectrum says that the product is the acid from which I synthesized the acid hydrazide (one of the starting material)! is it possible that 1,2,4-triazoles get hydrolyzed in such strong acidic media?
When you do the precipitation process, the amount of concentrated acid you add is important. I think IR result is not enough, to say it is still your product or not. You should get NMR spectra. I think if you added a small amount of the HCl, it should not be a big problem.
1,2,4-Triazoles are aromatic and usually very stable. You can't simply hydrolyse them. I would rather assume that the acid you see in the IR is unreacted starting material.
As Erkan and Yahya suggested, you should make further analyses of your crude product (TLC, NMR, MS) to see were your desired product is.
1,2,4-triazoles is stable compd. for action of acids and alkalies.At high temperature above 200 deg. it may loose nitrogen in the form of N2.
I hope to get clear evidence for appearing strong band at around 1650-1625 cm-1 in the 5-amino-1,2,4-triazole-3-thione product?
Can you attach me updated pdf papers in the field of 1,2,4-Triazole complexes
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