Synthesis and Structure of Disodium 1,2-Bis(2-oxocycloalkylidene)ethane-1,2-diolates and Disodium 4-Alkoxy-4-oxo-1-(2-oxocycloalkylidene)but-2-ene-1,2-diolates

Russian Journal of General Chemistry - Two-stage condensation of cycloalkyl ketones with dimethyl oxalate or alkyl acetates with dialkyl oxalates and cycloalkyl ketones produced disodium...     

Synthesis and Structure of Biologically Active 1,2-Bis(2-oxocycloalkyl)ethane-1,2-diones and 3,4-Dioxo-4-(2-oxocycloalkyl)butanoic Acid Esters

Russian Journal of General Chemistry - A two-step procedure has been proposed for the synthesis of 1,2-bis(2-oxocycloalkyl)ethane-1,2-diones and 3,4-dioxo-4-(2-oxocycloalkyl)butanoic acid esters by...     

Synthesis,Structure, and Biological Activity of (2Z)-2-[(2,4-Dinitrophenyl)hydrazinylidene]butanedioic Acid Esters

Dialkyl (2Z)-2-[(2,4-dinitrophenyl)hydrazinylidene]butanedioates have been synthesized by reaction of dialkyl (2Z)-2-hydroxybut-2-enedioates with 2,4-dinitrophenylhydrazine, and their structure has been studied by IR and ¹H NMR spectroscopy, mass spectrometry, and X-ray analysis.