Chapter 19.12, Problem 41ATS

Interpretation Introduction

Interpretation:

Synthesis of given compound 1 using acetylene, acetone, and formaldehyde has to be proposed.

Concept introduction:

An acetal is a compound having structural formula $R_{2}C{\left(OR\text{'}\right)}_2$. Acetal is prepared two molecules of alcohol reacts with a ketone or an aldehyde

  

Sodium Amide: ${\text{NaNH}}_{\text{2}}$ is a very strong base that is used in a reaction to deprotonate alcohols and alkynes and is host for different functional groups having acidic protons namely ketones and esters

Lindlar catalyst: The catalyst is used for the hydrogenation of alkenes in a syn manner. This means both hydrogen are added on the same side across the double bond and the product obtained will be a cis product.