Facile syntheses of bi-1,2,4-triazoles via hydrazonyl halides
Reaction of oxalodihydrazonyl dihalides 1 with sodium azide afforded the corresponding di-azides 2. Reduction of the latter with LiAlH4 yielded the diamidrazones 4 which react with acyl halides to give the bi-1,2,4-triazoles 5. The latter produ
Shawali,Farag,Albar,Dawood
p. 2761 - 2766
(2007/10/02)
COMPOSES DU PHOSPHORE DICOORDONNE. LES BITRIAZAPHOSPHOLES-1,2,4,3 : SYNTHESE ET PROPRIETES
The title compounds were obtained by reaction of diamidrazones with tris(dimethylamino)phosphine.The bitriazaphosphole structure is consistent with mass spectra.The reactivity of these new compounds and of triazaphosphole derivatives seems to be the same.
M'Pondo, Th. N'Gando,Malavaud, C.,Lopez, L.,Barrans, J.
p. 6049 - 6052
(2007/10/02)
The Simpliest Biformazan: 1,1',5,5'-Tetraphenyl-3,3'-biformazan
The synthesis and the properties of the biformazan 9 are reported.Dehydrogenation of 9 yields the betain 20, which like the salt 21 represents the middle oxidation state between the biformazan 9 and the bis(tetrazolium salt) 22.
Neugebauer, Franz Alfred,Fischer, Hans
p. 1226 - 1234
(2007/10/02)
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