Chapter 16, Problem 22P

Interpretation Introduction

Interpretation:

A brief synthesis of each of the given compounds from the indicated starting material and any other necessary organic or inorganic reagents is to be outlined.

Concept introduction:

Alcohols can be prepared from a variety of reagents.

Reaction of Grignard reagents with carbonyl compounds produces the corresponding alcohols.

Grignard reagents also react with oxiranes to produce alcohols.

The allylic and benzylic carbon atoms are selectively brominated using NBS reagent.

Alcohols undergo dehydration in acidic medium producing alkenes. These alkenes can be converted to diols using osmium tetra oxide.

Thiols are prepared by the nucleophilic substitution reaction by using the conjugate base of $H_{2}S$.