Action of Hydrazines on Substituted 3,5 ... - ACS Publications

Received December 27, 1960. The heterocyclic ring in substituted 3,5-pyrazolidinediones now has been found to be opened by the action of hydrazines...
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[COhTKIHJl.;16str., 26, 2977 (1932). U.A.R.