the top question. could you please show the mechanism/arrows on how the final product was achieved. I don't understand where the two new bonds connecting to the middle came from.
Hey Sreec! A diels-alder reaction is simply represented by three arrows as shown in the figure below and you don’t to worry about the orbital interaction, as it’s never generally asked. But first, we need to write the diene and dienophile in the correct orientation and more important is to remember their application to make cyclic/bridged structures using a diene and a dienophile. Hope this makes sense!
Thank you Abdullah!