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An acylation method of 3,4-diaminofurazan was developed.Under the catalysts of p-Toluenesulfonic acid,3-amino-4-formylaminofurazan,3-amino-4-acetylaminofurazan,3-amino-4-propionylaminofurazan,3-amino-4-butylramino-furazan and 3-amino-4-benzoylaminofurazan