When a general acid, H-X reacts with the alkene in an addition reaction, which regiochemistry is expected?
In addition reactions X attaches to the most substituted carbon whilst H bonds to the carbon with fewest alkyl groups. In this case I would believe the third carbon to be the most substituted carbon due to it being bonded to three other carbons. And the second carbon to be where the hydrogen will bond. However, apparently it should be the other way around. And this would be the compound formed:
Why is the second carbon the most substituted in this case? Does it have to do with oxygen being more electronegative and thus it is seen as a higher prioritized substituent?