Synthesis of heterocycles from arylation products of unsaturated compounds: XIII. 5-R1-benzyl-2-(R2-2-pyridylimino)thiazolidin-4-ones
Meerwein reactions of arenediazonium bromides with methyl and ethyl acrylates gave 3-aryl-2-bromopropionic acid esters which were subjected to cyclocondensation with N-(2-pyridyl)- and N-(6-methyl-2-pyridyl) thioureas to obtain 5-R1-benzyl-2-(R
Matiichuk,Obushak,Tsyalkovskii
p. 1050 - 1054
(2007/10/03)
Synthesis of heterocycles on the basis of arylation products of unsaturated compounds. 11.1 5-R-benzyl-2-iminoselenazolidin-4-ones from ethyl 3-aryl-2-bromopropanoates
Ethyl 3-aryl-2-bromopropanoates 2a-p were prepared by reaction of ethyl acrylate with arenediazonium bromides 1a-p in the presence of CuBr (Meerwein arylation). These compounds react with selenourea to form 5-R-benzyl-2- iminoselenazolidin-4-ones 4a-p. Compounds 4a-p hydrolyze into the corresponding selenazolidin-2,4-diones.
Obushak, Mykola D.,Matiychuk, Vasyl S.,Tsyalkovsky, Volodymyr M.,Voloshchuk, Roman M.
p. 107 - 113
(2007/10/03)
Synthesis of 5-r-benzyl-2-iminoselenazolidin-4-ones
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Matiichuk,Obushak,Tsyalkovskii
p. 972 - 973
(2007/10/03)
Synthesis of Heterocycles Based of the Products of Anionarylation of Unsaturated Compounds. II. * Method of Preparation of 2,5-Disubstituted 4-Thiazolidones
The products of haloarylation of acrylates by aryldiazonium salts (Meerwein reaction) react with thiourea and thiosemicarbazones forming thiazolidone cycle. The reaction is a convenient synthesis method of 5-benzylsubstituted 2-imino-4-thiazolidones and 2
Obushak,Matiichuk,Ganushchak
p. 239 - 244
(2007/10/03)
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