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报道了5种新的α，α′-二氧代烯酮环二氮代缩醛化合物的NMR谱，初步探讨了分子结构对化学位移的影响．
The NMR spectra of five novel α, α’-dioxo-ketene cyclic diazides were reported. The effects of molecular structure on the chemical shifts were also discussed.