The title compound, C(21)H(22)N(2)O(3), was synthesized by the reaction of tert-butyl-hydrazine with phthalic anhydride and further O-benzoyl-ation of the resulting inter-mediate by 3,5-dimethyl-benzoyl chloride. Inter-molecular C-H⋯O=C inter-actions link the mol-ecules into layers.

An efficient method for the synthesis of 3,5-disubstituted pyrazoles is described. The reactions of 1,3-dialkynes with hydrazine proceeded smoothly in dimethyl sulfoxide under mild reaction conditions to produce 3,5-disubstituted pyrazoles in satisfactory to excellent yields. A one-pot procedure of the transformation has been developed.

A novel one pot synthesis of pyrazolo[4',3':5,6]pyrido[2,3-d]pyrimidine-diones, via a five-component reaction, involving, hydrazine hydrate, ethyl acetoacetate, and 1,3-dimethyl barbituric acid, an appropriate aryl aldehydes and ammonium acetate catalyzed via both of heterogeneous and homogeneous catalysis in water, is reported.

• New thiosemicarbazones derived from 5-acetylbarbituric acid were characterized by XRD. The crystal packing of compounds is directed non-covalent interactions. Hirshfeld surface analysis was also applied to intermolecular interactions energetic features the assemblies analyzed using DFT calculations A new series based (TSC) named hydrazine-1-carbothioamide ( 1 ), N-methyl-(5-acetylbarbituric)h...

The present study focuses simply on propellants which are environment friendly i.e. Green propellants. In Propulsion Systems, there are two ingredients burned together which are fuel & oxidizer and the resultant energy is used to propel the system. In composite solid rocket propellants, Ammonium perchlorate (AP) is being used extensively which has its own disadvantages i.e. HCl release during i...

UNLABELLED BACKGROUND The corrosion inhibition performance of pyrazolylindolenine compounds, namely 4-(3,3-dimethyl-3H-indol-2-yl)-pyrazole-1-carbothioamide (InPzTAm), 4-(3,3-dimethyl-3H-indol-2-yl)-1H-pyrazole-1-carbothiohydrazide (InPzTH) and 3,3-dimethyl-2-(1-phenyl-1H-pyrazol-4-yl)-3H-indole (InPzPh),) on copper in 1M HCl solution is investigated by electrochemical impedance spectroscopy...

In the crystal structure of the title compound, C(4)H(8)N(2)O(4)·C(18)H(15)OP, two triphenyl-phosphine oxide mol-ecules and two dimethyl hydrazine-1,2-dicarboxyl-ate mol-ecules are connected via N-H⋯O hydrogen bonds of moderate strength and are related via a twofold rotational axis. Weak C(ar)-H⋯ O contacts strengthen the crystal structure.

The reaction of (E)-tert-butyl 4-[3-(dimethyl-amino)acrylo-yl]piperidine-1-carboxyl-ate with methyl-hydrazine leads to the formation of the title compound, C(14)H(23)N(3)O(2), with a 1-methyl-1H-pyrazol-5-yl substituent. The plane of the pyrazole ring forms a dihedral angle of 33.4 (1)° with the approximate mirror plane of the piperidine ring.

We have synthesized a new reagent-N,N'-dimethyl-N,.,V.bis(mercaptoacetyl)hydrazine(DMH)-for the reduction of disulfide bonds in proieins. DMH reduce.s disulfide bonds ? times faster than does dithiothreitol (DTT) in water at pH ?. DMH reduces mixed disulfides of cvsteine proteases (papain and ficin) especially rapdily i30 ti-.r faster than DTT). DMH (eo = -0.300 V) reduces noncl'clic disulfides...