58327-73-4Relevant academic research and scientific papers
A New Version of Multicomponent Synthesis of 4,6-Diaryl-2-sulfanylidene-1,2-dihydropyridine-3-carbonitrile Derivatives
Dyachenko,Dyachenko,Polupanenko,Dorovatovskii,Khrustalev,Nenajdenko
, p. 1273 - 1284 (2018/11/21)
Multicomponent condensation of aromatic aldehydes with acetophenones, cyanothioacetamide, and alkylating agents has been shown to provide synthetic routes to various pyridine and thienopyridine derivatives. The structure of some of the synthesized heterocycles has been confirmed by X-ray analysis.
CYCLIZATION OF NITRILES. IX. SYNTHESES BASED ON 2-ARYL-3-AROYL-1,1-DICYANOPROPANES
Shestopalov, A. M.,Promonenkov, V. K.,Sharanin, Yu. A.,Rodinovskaya, L. A.,Sharanin, S. Yu.
, p. 1382 - 1401 (2007/10/02)
2-Aryl-3-aroyl-1,1-dicyanopropanes and 2-aryl-3-aroyl-1-bromo-1,1-dicyanopropanes were synthesized from chalcones and malononitrile and were converted into 4,6-diaryl-2-bromo-3-cyanopyridines and 3-cyano-2(1H)-pyridinethiones.The 2-aryl-3-aroyl-1-bromo-1,1-dicyanopropanes proved convenient intermediates for the production of the corresponding cyclopropanes and other compounds.By their reaction with urea a new method was developed for the production of substituted 3-cyano-2(1H)-pyridinethiones.The 2-bromo-3-cyanopyridines contain a mobile bromine atom readily exchanged for the various nucleophilic residues of alcohols and amines and for iodide, and cyano and thiocyanato groups.The 3-cyano-2(1H)-pyridinethiones were used in the synthesis of 3-aminothienopyridines through the isolated 2-Z-methylthio-3-cyanopyridines.
