作者:Volodymyr A. Kovtunenko、Lyudmila M. Potikha、Andriy V. Shelepyuk、Taras N. Tarasiuk
DOI:10.1007/s10593-019-02466-w
日期:2019.5
5-(bromomethyl)-2,2,6,6-tetramethylhept-4-en-3-one occurred at the N-1 nitrogen atom, with the formation of quaternary salts that were cyclized in the presence of bases into [1,2,4]triazolo[1,5-a]-pyridine derivatives. Quaternary 4-amino-4H-1,2,4-triazolium salts and aromatic 1-amino-1H-[1,2,4]triazolo[1,5-a]pyridinium salts can be deaminated by treatment with nitrous acid, giving 1-substituted 1,2,4-triazoles and
在N-1处发生4-氨基-4 H -1,2,4-三唑与γ-溴代甲酮和5-(溴甲基)-2,2,6,6-四甲基庚-4-烯-3-酮的季铵化反应氮原子,形成季盐,在碱的存在下环化成[1,2,4]三唑并[1,5- a ]-吡啶衍生物。季铵4-氨基-4 H -1,2,4-三唑鎓盐和芳族1-氨基-1 H- [1,2,4]三唑并[1,5- a ]吡啶鎓盐可通过亚硝酸处理而脱氨基得到1-取代的1,2,4-三唑和各自的[1,2,4]三唑并[1,5- a ]吡啶。