- Alkylation and acylation of the 1,2,3,triazole ring
-
Trimethylsilylation of 1,2,3-triazole regioselectively proceeded to give 2-trimethylsilyl-2H-1,2,3-triazole, which was treated with primary alkyl halides in the presence of tetrabutylammonium fluoride to give 1-alkyl-1H- 1,2,3-triazoles as a Sole product 1-Methyl-5-substituted 1H-1,2,3-triazoles were prepared by alkylation of 5-lithio-1-methyl-1H-1,2,3-triazole, and 1- methyl-4-substituted 1H-1,2,3-triazoles were obtained by alkylation of 4- lithio-1-methyl-5-phenylthio-1H-1,2,3-triazole followed by reductive desulfurization.
- Ohta, Shunsaku,Kawasaki, Ikuo,Uemura, Takahiro,Yamashita, Masayuki,Yoshioka, Tomomichi,Yamaguchi, Satoshi
-
p. 1140 - 1145
(2007/10/03)
-
- Study of the reactivity of nitriles towards diazomethane: synthesis and structural study of N-methyl-v-triazoles
-
In this work, we examined the effect of diazomethane on 12 nitriles.Five gave rise to three isomeric N-methyl-v-triazoles, which were isolated.Their structural features were established and, in one case, corroborated by X-ray analysis.A generalization of the structural attribution by 13C NMR is proposed.A study of the electronic distribution was carried out for a total 17 nitriles and helped establish a predictive criterion of their reactivity towards diazomethane. diazomethane / nitrile / v-triazole / electronic density
- Danoun, Saida,Baziard-Mouysset, Genevieve,Stigliani, Jean-Luc,Commenges, Gerard,Carpy, Alain,Payard, Marc
-
p. 943 - 951
(2007/10/02)
-
- Thermal Rearrangement of 4-Iminomethyl-1,2,3-thiadiazoles
-
Imines derived from 1,2,3-thiadiazole-4-carbaldehyde 4 rearrange thermally into 1,2,3-triazole-4-thiocarbaldehydes 6 which were trapped with anthracene or 2,3-dimethylbutadiene.In two cases, 1,2,3-thiadiazole-4-thiocarbaldehyde 9 was intercepted as the Di
- L'abbe, Gerrit,Verbeke, Mikaela,Dehaen, Wim,Toppet, Suzanne
-
p. 1719 - 1726
(2007/10/02)
-
- A New Heterocyclic Structure. The Triazolotriazine
-
The hydrazone derivatives of 4-benzoyl-1,2,3-triazole can easily be cyclised by reaction with various organic reagents (ortho esters, aldehyde and ketone compounds, phosgene, etc) which result in the incorporation of the introduced reagent's carbon atom i
- Bianchi, Mario,Butti, Alina,Perronnet, Jacques
-
p. 743 - 750
(2007/10/02)
-