Chapter 10, Problem 57P

Interpretation Introduction

Interpretation:

The products of each stages in the given reaction should be identified.

Concept introduction:

Alkenes react with halogens (bromine, chlorine) in the presence of water which gives chloro hydrine or bromo hydrine derivative and which produce epoxide through ${\text{S}}_{\text{N}}2$ reaction in the presence base (sodium hydroxides).

Epoxide is highly reactive and it is reaction with hydroxide ion which produces Trans diol.