Facile synthesis of [1,2,4]triazino[4,3-b][1,2,4,5]tetrazepin derivatives by a one-pot reactions using 4-amino-3-hydrazinyl-6-methyl-1,2,4-triazin-5(4H)-one
作者:Hooshang Vahedi、Ghadir Rajabzadeh、Fahimeh Farvandi
DOI:10.1016/j.cclet.2010.07.006
日期:2010.12
4-Amino-3-mercapto-6-methyl-1,2,4-triazin-5(4H)-one 1 converted to 4-amino-6-methy-3-(methylthio)-1,2,4-triazin-5(4H)-one by methylation with methyl iodide. Controlled hydrazination of the resulting compound afforded 4-amino-3-hydrazinyl-6-methyl-1,2,4-triazin-5(4H)-one 2 as a building block, to the synthesis of some novel derivatives of [1,2,4]triazino [4,3,b][1,2,4,5]tetrazepine 3–6, by the reaction
4-氨基-3-巯基-6-甲基-1,2,4-三嗪-5(4 H)-一1转化为4-氨基-6-甲基-3-(甲硫基)-1,2,4- Triazin-5(4 H)-one与甲基碘甲基化。控制所得化合物的酰化作用,得到4-氨基-3-肼基-6-甲基-1,2,4-三嗪-5(4 H)-one 2作为结构单元,从而合成了[1]的一些新型衍生物。 ,2,4] triazino [4,3,b ] [1,2,4,5]四氮杂3 – 6通过与3-氯戊烷-2,4-二酮,氯乙腈,1,3-二氯丙酮和溴代乙酸甲酯反应而制得。这种一般的合成方法可以扩展到使用1,2-双亲电子试剂衍生物制备各种各样的四氮杂s。