Ketene dithioacetal
= Ketene dithioacetal
An <alkene> bearing two thioalkoxy groups on one <carbon>, $\mathrm{R_2C=C(SR\prime)_2}$. <pi conjugation> to a <carbonyl> can allow addition–elimination at that beta <carbon> with <thiolate> departure.
= Ketene dithioacetal
An <alkene> bearing two thioalkoxy groups on one <carbon>, $\mathrm{R_2C=C(SR\prime)_2}$. <pi conjugation> to a <carbonyl> can allow addition–elimination at that beta <carbon> with <thiolate> departure.