In the addition of hypochlorous acid () to propene, which of the following represents the major product and the correct attacking electrophile?

Question

In the addition of hypochlorous acid ($HOCl$) to propene, which of the following represents the major product and the correct attacking electrophile?

Prashant Kotian · Accepted Answer

Correct answer: A. In , the chlorine atom is less electronegative than oxygen, generating a electrophile and an nucleophile. The attacks the alkene first to form the more stable secondary carbocation intermediate at the central carbon (Markovnikov's rule). Subsequent attack by on this secondary carbocation yields 1-chloro-2-propanol () as the major product.

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