1022906-64-4Relevant academic research and scientific papers
Studies with condensed aminothiophenes: Microwave assisted cycloaddition reactions of thieno[3,4-d]-pyridazinone and thieno[3,4-c]quinolinone
Al-Mousawi, Saleh Mohammed,EL-Apasery, Morsy Ahmed,Elnagdi, Mohamed Hilmy
, p. 1151 - 1161 (2008/12/20)
The arylformazane (2) was produced via coupling the α-oxoarylhydrazones (1) with aromatic diazonium salts. These formazane condensed readily with ethyl cyanoacetate to yield arylazopyridazinones (4) that reacted with sulphur in the presence of piperidine
Synthesis of 3-arylazo-6-oxopyridazin-5-carbonitriles: A versatile precursor for condensed arylazopyridazin-6-ones
Al-Mousawi, Saleh M.,El-Apasery, Morsy A.,Al-Kandery, Najat,Elnagdi, Mohamed H.
, p. 359 - 364 (2008/09/20)
(Chemical Equation Presented) 1-[2-Phenyl-1-diazenyl]-1-[2-phenylhydrazono] acetone or 1-[-2-(4-methylphenyl)-1-diazenyl]-1-[-2-(4-methylphenyl)hydrazono]- butan-2-one were produced via coupling the (E) 2-oxopropanal-1-phenyl-hydrazone or (E) 2-oxobutanal
Microwaves in organic synthesis: Synthesis of pyridazinones, phthalazinones and pyridopyridazinones from 2-oxo-arylhydrazones under microwave irradiation
Al-Saleh, Balkis,Hilmy, Noha M.,El-Apasery, Morsy Ahmed,Elnagdi, Mohamed H.
, p. 1575 - 1581 (2007/10/03)
The phenylhydrazones 1a-d condensed with ethyl cyanoacetate to yield pyridazinones 2a-d that reacted with sulphur in presence of piperidine to yield the aminothienopyridazineones 3a,b that reacted with electron poor olefins and acetylenes to yield phthala
An easy access to 2-oxohydrazones via electrophilic α-p-tolylhydrazonylation of ketone enolates with tert-butyl p-tolylazo sulfide
Dell'Erba, Carlo,Novi, Marino,Petrillo, Giovanni,Tavani, Cinzia
, p. 11239 - 11248 (2007/10/02)
The title reaction conveniently furnishes, as the sole or main products, α-(p-tolylhydrazono)ketones or their N-methylderivatives (H+ or MeI quenching of the final mixture, respectively). Although the method fails with ketones having a secondary alkyl group bonded to the carbonyl, yields are otherwise more than satisfactory and particular interest is attached to the hydrazonylation of the methyl group in methyl ketones.
