Aromatic α-ketols reacted with diethylaminotributylstannane at 60 °C to afford a mixture of (Z)- and (E)-1,2-bis(tributylstannyloxy)-1,2-diarylethenes, which were allowed to react with organic isothiocyanates and carbon disulfide to give substituted O,O-vinylene imino- and thiocarbonates, respectively. Aliphatic α-ketol, 3-hydroxy-2-butanone, was treated by the aminostannane, followed by the reaction with carbon disulfide to form (E)-1,2-bis(tributylstannylthio)-2-butene.
Electrochemical reduction of diaryl-1,2-diketones in the presence of carbonimidoyl dichlorides. A new method for the synthesis of enediol iminocarbonates
作者:Antonio Guirado、Andrés Zapata、Jesús Gálvez
DOI:10.1016/0040-4039(94)85221-9
日期:1994.4
Selective cathodic reduction of diaryl-1,2-diketones in the presence of carbonimidoyl dichlorides provides a new and very convenient method for the synthesis of the title compounds.