In the conversion shown in Fig. P18.77, the Diels-Alder reaction is used to trap a very interesting intermediate by its reaction with anthracene. From the structure of the product, deduce the structure of the intermediate. Then write a mechanism that shows how the intermediate is formed from the starting material.

Transcribed Image Text:

Br Mg. 60 °C THF + MgBrF 1-bromo-2-fluorobenzene triptycene