Alkynes undergo hydroboration to give alkenylboranes, which can be oxidized to give carbon...

Alkynes undergo hydroboration to give alkenylboranes, which can be oxidized to give carbonyl compounds with hydrogen peroxide. The net result of the two-step sequence is hydration, which gives aldehydes from terminal alkynes.

The oxidation step involves an enol intermediate. Using Mechanism 9.2 as a guide, write the structure of the enol that is formed in the conversion of 1-hexyne to hexanal.