Oxo derivatives of pyrazolines and pyrazolidines are important heterocyclic compounds due
to their unique biological activities and have been widely applied in pharmaceutical and …

Abstract Treatment of ethyl 3-hydrazinyl-3-oxopropanoate (6) with indoline-2, 3-dione
derivatives 7a–g gave ethyl 3-oxo-3-(2-(2-oxoindolin-3-ylidene) hydrazinyl) propanoates 8a …

One-pot, four-component reactions of 1, 2-diphenylpyrazolidine-3, 5-dione, ethyl 4, 4, 4-
trifluoroacetoacetate, aromatic aldehyde and ammonium acetate afforded highly …

A new Ni (II) complex,[Ni (L)(H2O)](1), with diethyl 3, 3′-(2, 2′-(1, 1′-(pyridine-2, 6-diyl)
bis (ethan-1-yl-1-ylidene)) bis (hydrazin-1-yl-2-ylidene)) bis (3-oxopropanoate) ligand (H2L) …

Although salicylaldehyde azine (3) was reported in 1985 as the single product of the
reaction of ethyl 2-oxo-2 H-chromene-3-carboxylate (1) with hydrazine hydrate, we identified …

Background: Pyrazolidine 5, 3-dione derivatives have a wide range of biological and
pharmacological activities and play an important role in the sub-structures of various drugs …

Electro-oxidation of phenylamine derivatives (1a and 1b) have been studied in the presence
of pyrazolidine-3, 5-dione (3) as a nucleophile in phosphate buffer solution mixed with …

In this work, we have reported a synthesis of some novel pyrazol-pyrimidine derivatives (3a-
f) obtained by the reaction of substituted pyrazole aldehydes and barbituric acid derivatives …

Abstract Novel high energy material 1, 2, 4, 4‐tetranitropyrazolidine‐3, 5‐dione has been
synthesized from inexpensive and readily available starting material Diethyl malonate. The …

Abstract The reaction of 2, 5-dihydroxyacetophenone I or 1-(1, 4-dihydroxynaphthalen-2-yl)
ethanone II with various 4-aryl thiosemicarbazides did not yield the expected 4-aryl-1-[1-(2 …