The reactions of 1-lithia-1,2- or 1,7-dicarba-closo-dodecaborane with 1,2,4-triazine 4-oxides can follow two competitive pathways: deoxygenative nucleophilic substitution of hydrogen to form 1-(1,2,4-triazin-5-yl)-1,2- or 1,7-dicarba-closo-dodecaboranes and the transformation of the 1,2,4-triazine ring into the triazoline ring giving rise to 1-(2-acetyl-1-aroyl-3-aryl-1,2,4-triazolin-5-yl)-1,2-dic
1-lithia-1,2- 或 1,7-dicarba-closo-dodecaborane 与 1,
2,4-triazine 4-
氧化物的反应可以遵循两种竞争途径:
氢的
脱氧亲核取代形成 1-(1,
2,4-triazin-5-yl)-1,2- 或 1,7-dicarba-closo-dodecaboranes 和 1,
2,4-triazine 环转化为三唑啉环产生 1-(2-
乙酰基-1-芳酰基-3-芳基-1,
2,4-triazolin-5-yl)-1,2-dicarba-closo-ddecaboranes。将吸电子
三嗪环引入
碳硼烷笼中大大促进了
脱硼作用,得到 1-(1,
2,4-triazin-5-yl)-1,2-1,7-dicarba-nido-undecaboranes。