ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary 2-(Phenylmethylene)-hydrazinecarboximidamide (I) is reduced at the dropping mercury electrode in a pH-dependent wave, the diffusion-controlled limiting current is markedly influenced by surface active substances due to the adsorption of I. The pKa1-value of I (photometrically determined) is 9.7. In acid solutions reduction occurs with consumption of 4 electrons per molecule, forming guanidine and benzylamine; thereby fission of the N-N-bond takes place at first, followed by reduction of the C-N(2)-double-bond. In alkaline solutions 2-(phenylmethyl)-hydrazine-carboximidamide (II) is formed by consumption of 2 electrons per molecule; II is not reducible in acid solution.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00494536
