In both the Shapiro and Bamford-Stevens reactions, ketones are converted to alkenes after a leaving group consisting of hydrazine bonded to a group with this element at its center are kicked off; that group is a (*) tosyl, which has this element bonded to three oxygens.
Carbonyls bonded to this element are reduced to aldehydes by silyl hydride and a palladium catalyst in the Fukuyama reduction. Compounds of this element are removed from sour gasoline in the Doctor Sweetening Process. In both the Shapiro and Bamford-Stevens reactions, ketones are converted to alkenes after a leaving group consisting of hydrazine bonded to a group with this element at its center are kicked off; that group is a (*) tosyl, which has this element bonded to three oxygens. At its center, Lawesson's reagent has two phosphoruses bonded to three of these elements. Natural gas has a smell because compounds of this element called mercaptans or thiols are added. For 10 points, what is this element whose compounds produce the smell of rotting eggs, with chemical symbol S?
Carbonyls bonded to this element are reduced to aldehydes by silyl hydride and a palladium catalyst in the Fukuyama reduction.
sulfur