Question

hw16

Deconstruct the following Diels- Alder adduct. Show what reactants, in any order, would be needed to produce the following:

Answer 1

Concepts and reason

Diels – alder reaction is [4 + 2] cycloaddition reaction between conjugated diene and dienophile (substituted alkene or alkyne) to form a substituted cyclohexene. This reaction takes place in a single step with no intermediates in this reaction.

Fundamentals

A compound with conjugated double bond in a system is represented as diene.

A substituted alkene or alkyne is represented as dienophile.

Example:

According to stereochemistry,

Cis reactants lead to Cis products and trans-reactants leads to trans-products.

Ans:

Answer 2

The product can be preapred using the following diene and dienophile. Dienophile Diene