Synthesis of 1-Alkyl-5-amino-1,2,4-triazoles Based on Nucleophilic Substitution and Reduction Reactions
摘要:
A series of 1-alkyl-5-amino-1H-1,2,4-triazoles were synthesized starting from 3,5-dibromo-1H- 1,2,4-triazole by alkylation and subsequent nucleophilic substitution of the 5-bromine atom by azido group, reduction of the latter to amino group, and hydrodebromination.
Synthesis of 1-Alkyl-5-amino-1,2,4-triazoles Based on Nucleophilic Substitution and Reduction Reactions
摘要:
A series of 1-alkyl-5-amino-1H-1,2,4-triazoles were synthesized starting from 3,5-dibromo-1H- 1,2,4-triazole by alkylation and subsequent nucleophilic substitution of the 5-bromine atom by azido group, reduction of the latter to amino group, and hydrodebromination.
Reaction of Diethyl Chloroethynylphosphonate with 3-Amino-1,2,4-triazoles
作者:A. S. Krylov、V. V. Tolstyakov、V. V. Gurzhiy、A. V. Dogadina
DOI:10.1134/s1070363221010072
日期:2021.1
6-phosphonylated 1H-imidazo[2,1-c][1,2,4]triazoles was synthesized by the reaction of diethylchloroethynylphosphonate with 2-substituted 3-amino-1,2,4-triazoles followed by 5-endo-dig cyclization. It was found that 3-amino-5-bromo-1,2,4-triazole reacts in another way, leading to the formation of the corresponding symmetric amidine, diethyl2-[(3-bromo-1-methyl-1H-1,2,4-triazol-5-yl)amino]-2-[(3-bromo-1-methyl-1H-1
摘要 氯乙炔基膦酸二乙酯与2-取代的3-氨基-1,2,4-三唑的反应合成了一系列新的6-膦酰化的1 H-咪唑并[2,1- c ] [1,2,4]三唑通过5 -endo-dig环化。发现3-氨基-5-溴-1,2,4-三唑以另一种方式反应,导致形成相应的对称am二乙基2-[(3-溴-1-甲基-1 H -1,2,4-三唑-5-基)氨基] -2-[(3-溴-1-甲基-1 H -1,2,4-三唑-5-基)亚氨基]乙基}膦酸酯。