Domino Reaction for the Construction
of New 2-Oxo[1,2,4]triazolo[5,1-<i>c</i>][1,4]thiazines
作者:Fabio Mantellini、Francisco Palacios、Orazio Attanasi、Samuele Lillini、Jesús de los Santos、Roberto Ignacio
DOI:10.1055/s-0028-1087928
日期:——
The synthesis of highly functionalized α-thiohydrazones by Michael addition of 3-mercapto-2-ketones to 1,2-diazabuta-1,3-dienes is described. The phosphorylated α-thiohydrazones were hydrolyzed into β-ketophosphine oxides or phosphonates containing a mercapto ketone in the a position, while the α-thiohydrazones with a carboxylate group were subsequently transformed into 2-oxo-2,3,8,8a-tetrahydro-1H-[1