| 摘要 |
Compounds containing at least one tetraketopiperazine-1,4-diyl unit are disclosed as active materials in the positive electrodes of batteries. Novel methods for preparing the tetraketopiperazine unit-containing compounds include: (i) reacting an oxalyl halide and an oxamide, and adding water or an aqueous alkali solution to the reaction mixture, (ii) reacting an oxalyl halide and a silylamine, (iii) reacting an oximidyl halide and an amine, (iv) reacting an oxalyl halide and a silylamine, and reacting with an amine, (v) reacting an oxalyl halide and a dioxamide, (vi) reacting an oximidyl halide and a diamine, and (vii) reacting an oxalyl halide and a silylamine, and reacting with a diamine. A novel method for preparing an oximidyl halide is also disclosed.
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