The diels–alder reaction with molecular oxygen as dienophile

CONTENTS
I. Introduction 558
II. Reaction of molecular oxygen with acyclic and alicyclic 1,3-dienes 558
III. Reaction of molecular oxygen with aromatic dienes 565
IV. Reaction of molecular oxygen with 1,3-dienes containing heteroatoms 567
V. Mechanism of photosensitised oxidation; oxidation with singlet oxygen 570