Masked talent: A tetracyclo[5.3.3.04,9.04,12]tridecane skeleton can be accessed by an intramolecular reverse‐electron‐demand Diels–Alder (REDDA) reaction of masked ortho‐benzoquinone (MOB; see scheme). This reaction gives access to the pentacyclicframework of atropurpuran, and also enables the construction of other anti‐Bredt and cage‐like complex molecules.