The first examples of cycloadditions of 2-diazo-1,3-dicarbonyl compounds to aromatic thioketones
Keywords: 2-Diazo-1,3-diazocarbonyl compounds; Thioketones; Oxathioles; Thiadiazoline; Thiocarbonyl ylides; 2-Oxoketenes; Pyrandiones; Cycloaddition; 1,5-Electrocyclization;