Add to ORKGReaction between 4-cyclohexene-1 ;2-dicarboxylic acid anhydride and hydrazine hydrate was investigated. There were obtained d ifferent products depending on reaction conditions but no pyridazines were formed . The reaction betwee n hydrazino pyridazines and different acid anhydrides was also investigated and only monohydrazides were obtained. Finally, a ring contraction of a pyridazine derivative into a pyrazole derivative has been established
The synthesis of six new parent azolopyridopyridazines (I-VI) is described. Electropnilic substituti...
In this work 2-hydrazino pyrimidine (1) was prepared from 2-mercapto pyrimidine with hydrazine hydra...
629-6353(2H)-Oxo-, 3-mercapto- or 3-amino-pyridazine derivatives 3,5 and 6 have been coupled with ...
Reaction between 4-cyclohexene-1 ;2-dicarboxylic acid anhydride and hydrazine hydrate was investigat...
Reactions between 3-amino-6-chloropyridazine and different dihalogenides, halo esters a nd halo acyl...
AbstractThe reaction of arylmalononitiles 1a,b with hydrazine hydrate at room temperature has afford...
Furan-2,3-diones la-c react with various hydrazines 2a-c under different conditions to yield the pyr...
The behavior of 2-phenylimidazo(l,2-b)pyridazines in some electrophilic and nucleophilic subs.tituti...
Succinaldehyde bis (diethyl acetal) and phenyl-, or ring substituted phenyl-hydrazines cyclize in 25...
Succinaldehyde bis (diethyl acetal) and phenyl-, or ring substituted phenyl-hydrazines cyclize in 25...
The formation of N,N-dimethylaminomethylenehydrazino derivatives of pyridazine and azolopyridaz~nes ...
The formation of N,N-dimethylaminomethylenehydrazino derivatives of pyridazine and azolopyridaz~nes ...
AbstractThe reaction of arylmalononitiles 1a,b with hydrazine hydrate at room temperature has afford...
The reaction of MND with aryldiazonium chlorides followed by cyclization afforded the pyridazinimin...
The synthesis of six new parent azolopyridopyridazines (I-VI) is described. Electropnilic substituti...
The synthesis of six new parent azolopyridopyridazines (I-VI) is described. Electropnilic substituti...
In this work 2-hydrazino pyrimidine (1) was prepared from 2-mercapto pyrimidine with hydrazine hydra...
629-6353(2H)-Oxo-, 3-mercapto- or 3-amino-pyridazine derivatives 3,5 and 6 have been coupled with ...
Reaction between 4-cyclohexene-1 ;2-dicarboxylic acid anhydride and hydrazine hydrate was investigat...
Reactions between 3-amino-6-chloropyridazine and different dihalogenides, halo esters a nd halo acyl...
AbstractThe reaction of arylmalononitiles 1a,b with hydrazine hydrate at room temperature has afford...
Furan-2,3-diones la-c react with various hydrazines 2a-c under different conditions to yield the pyr...
The behavior of 2-phenylimidazo(l,2-b)pyridazines in some electrophilic and nucleophilic subs.tituti...
Succinaldehyde bis (diethyl acetal) and phenyl-, or ring substituted phenyl-hydrazines cyclize in 25...
Succinaldehyde bis (diethyl acetal) and phenyl-, or ring substituted phenyl-hydrazines cyclize in 25...
The formation of N,N-dimethylaminomethylenehydrazino derivatives of pyridazine and azolopyridaz~nes ...
The formation of N,N-dimethylaminomethylenehydrazino derivatives of pyridazine and azolopyridaz~nes ...
AbstractThe reaction of arylmalononitiles 1a,b with hydrazine hydrate at room temperature has afford...
The reaction of MND with aryldiazonium chlorides followed by cyclization afforded the pyridazinimin...
The synthesis of six new parent azolopyridopyridazines (I-VI) is described. Electropnilic substituti...
The synthesis of six new parent azolopyridopyridazines (I-VI) is described. Electropnilic substituti...
In this work 2-hydrazino pyrimidine (1) was prepared from 2-mercapto pyrimidine with hydrazine hydra...
629-6353(2H)-Oxo-, 3-mercapto- or 3-amino-pyridazine derivatives 3,5 and 6 have been coupled with ...