In fact, the introduction of a dithioketal at the nucleophilic carbon α to a cabonyl group involves two successive oxidations of the α carbon, first of 354 to 356 then of the latter into 358, coupled ...In fact, the introduction of a dithioketal at the nucleophilic carbon α to a cabonyl group involves two successive oxidations of the α carbon, first of 354 to 356 then of the latter into 358, coupled with two reductions of sulfur, first in the conversion of 355 to 356 then in the conversion of the latter, via 357, into 358.
