40172-67-6Relevant academic research and scientific papers
One or two step acid mediated cyclocondensation process for the preparation of 5-carbethoxy-2-thiouracils from diethyl ethoxymethylenemalonate and thioureas
Botsi, Sofia,Tsolomitis, Athanase
, p. 229 - 234 (2007)
An acid mediated synthesis of 5-carbethoxy-2-thiouracils via an one step cyclocondensation of diethyl ethoxymethylenemalonate and thioureas or the under milder reaction conditions, also obtained, thioureidomethylenemalonates, is described here.
New 1,3-diazadienes used in heterocyclic synthesis
Friot, Celine,Reliquet, Alain,Reliquet, Francoise,Meslin, Jean Claude
, p. 695 - 702 (2007/10/03)
The synthesis of dihydropyrimidines, dihydropyrimidinones and thiadiazine-1,1-dioxides starting from neutral or cationic 2-methylthio-1,3- diazadienes is described. Addition of H2S followed by loss of methanethiol led to the corresponding thiocarbonyl compounds.
