Cech H2o H So Hgso4 Ch3 Alkynes Do Not React Directly With Aqueous Acid As Do Alkenes But Will Do So In The Presence O 1 (37.15 KiB) Viewed 57 times
Cech H2o H So Hgso4 Ch3 Alkynes Do Not React Directly With Aqueous Acid As Do Alkenes But Will Do So In The Presence O 2 (43.15 KiB) Viewed 57 times
CECH H2O, H,SO HgSO4 CH3 Alkynes do not react directly with aqueous acid as do alkenes, but will do so in the presence of mercury(II) sulfate as a Lewis acid catalyst. The reaction occurs with Markovnikov reglochemistry, so the OH group adds to the more highly substituted carbon and the H adds to the less highly substituted carbon. The initial product of the reaction is a vinyl alcohol, also called an enol. The enol Immediately rearranges to a more stable ketone via tautomerization. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow.pushing Instructions nX HO HO C=CH2 HÖHz -CH3 co H2O
CECH H2O, H2SO4 HgSO4 CHE oot Alkynes do not react directly with aqueous acld as do alkenes, but will do so in the presence of mercury(II) sulfate as a Lewis acid catalyst. The reaction occurs with Markovnikov reglochemistry, so the OH group adds to the more highly substituted carbon and the H adds to the less highly substituted carbon. The initial product of the reaction is a vinyl alcohol, also called an enol. The enol Immediately rearranges to a more stable ketone via tautomerization. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow.pushing Instructions nn X Hö: H2O: C=CH Hg CECH Hg
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