Please use this identifier to cite or link to this item:
|Title:||Synthesis of some substituted 2-oxo- 1,2,3,4-tetrahydropyrimidines (3,4-dihydropyrimidin-2(1<i>H</i> )-ones) and 2-thioxo-1,2,3,4-tetrahydropyrimidines, catalyzed by tin(II) chloride dihydrate and tin (II) iodide under microwave irradiation|
|Authors:||Roy, Dipak K|
tin(II) chloride dihydrate
|Series/Report no.:||Int.Cl.<sup>7</sup> C 07 D|
|Abstract:||A simple,economic and efficient one pot synthesis of some sub s tituted 2-o xo-1,2,3,4-t etrahydropyr imid ines [3, 4- dihydropyrimidin-2(1<i>H</i> )-ones) and 2-thioxo-1,2,3,4-tetrahydropyrimidines under solvent free condition and microwave irradiation catalyzed by tin(II) chloride dihydrate and tin (II) i ide is described. Aromatic aldehydes, possessing either electron donating or electron withdrawing substituents, react efficiently with urea (or thiourea) and <img src='/image/spc_char/beta.gif' border=0>-dicarbonyl compounds to give excellent yield of sub s tituted 3,4-dihydro pyrimidin-2 (1<i>H</i> )-ones (o r 3, 4-dihydropyrimidin-2(1<i>H</i> )-thiones].|
|Appears in Collections:||IJC-B Vol.45B(04) [April 2006]|
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.