Naturally Occurring Diazofluorenes

The chapter deals with yet another type of natural compounds incorporating diazo cyclopentadienyl moiety. Natural diazofluorenes involving monomeric kinamycins as well as dimeric lomaiviticins count a few dozen members only, yet their stucture elucidation and synthesis reads like a thriller. Significant structure corrections that were enforced by discrepancies in properties of the natural and synthesized compounds have had a great impact on their total synthesis. This review covers the synthesis of the compounds in the period 2011–2021.