369609-88-1Relevant articles and documents
Unexpected result in the reaction of 3-amino-3-thioxopropanamides with 2-anilinomethylene derivatives of 1,3-dicarbonyl compounds. synthesis of pyrimidine-5-carboxamide derivatives
Dotsenko,Frolov,Krivokolysko,Polovinko
, p. 440 - 451 (2013/07/26)
The interaction of 3-amino-3-thioxopropanamides with 2-anilinomethylene derivatives of dimedone, 1,3-cyclohexanedione and Meldrum's acid led to the formation of 2-(2-amino-2-oxoethyl)-6-thioxo-1,6-dihydropyrimidine-5- carboxamides. The latter were alkylated in alkaline medium with the formation of 4-(alkylthio)pyrimidine-5-carboxamide derivatives.
The mannich reaction in the synthesis of N,S-containing heterocycles 12.* First example of aminomethylation involving 2-thioxonicotinamide derivative: Synthesis of 3,5,7,11-tetraazatricyclo[7.3.1.02,7]tridec- 2-ene-9-carboxamides
Dotsenko,Krivokolysko,Litvinov
, p. 136 - 140 (2013/01/15)
Piperidinium 6-amino-5-cyano-3-N-(4-methylphenyl)carbamoyl-4-phenyl-1,4- dihydro- pyridine-2-thiolate upon the action of primary amines and excess formaldehyde undergoes aminomethylation to form 3,5,7,11-tetraazatricyclo[7.3.1. 02,7]tridec-2-en
E-Z-izomerization of 2-methylenethiazolidin-4-ones
Morzherin,Kosterina,Berseneva,Dehaen,Bakulev
, p. 1292 - 1297 (2007/10/03)
The equilibrium concentrations of E- and Z-isomers of thiazolidin-4-ones containing exocyclic double bonds in positions 2 and 5 of the cycle were determined in DMSO-d6. The influence of the nature of the substituents on the equilibrium position was found. Electron-releasing substituents stabilize the E,Z-configuration and electron-withdrawing substituents stabilize the Z,Z-configuration. The association constants of E- and Z-2-ethoxycarbonylmethylenethiazolidin-4-ones with the sodium cation were determined by 1H NMR spectroscopy.