Allenes are the simplest class of cumulenes, with two contiguous C C bonds, and show
unique physical and chemical properties. These features make allenes particularly attractive …

Allenes are a class of unique compounds with two π-orbitals perpendicular to each other.
The first synthesis can be traced back to 1887. 1 They also exist in many natural products …

The present review is focused on the application of computational/theoretical methods to the
wide and rich chemistry of allenes. Special emphasis is made on the interplay and synergy …

Covering: 2000–2018 In this review, we highlight recent examples of natural product total
syntheses employing transition metal-mediated/catalyzed carbonylative cyclization …

Allene–Verbindungen mit zwei benachbarten C C‐Bindungen–bilden die einfachste
Klasse unter den Cumulenen. Sie verfügen über außergewöhnliche physikalische und …

Secondary metabolites of higher fungi (mushrooms) are an underexplored resource
compared to plant-derived secondary metabolites. An increasing interest in mushroom …

The [2+ 2+ 1] cyclization of an alkyne, an alkene and carbon monoxide, ie, the Pauson–
Khand reaction, is one of the most powerful tools for constructing a five-membered ring. In …

The total synthesis of (−)-5-epi-vibsanin E (2) has been achieved in 18 steps. The synthesis
combines the rhodium-catalyzed [4+ 3] cycloaddition between a vinylcarbenoid and a diene …

The synthesis of cyclopentenones is most frequently achieved via an organometallic
approach. The widely studied route, the Pauson–Khand reaction (PKR), incorporates three …

Two complex norditerpenoids, caribenols A and B, were accessed from a common building
block. Our synthesis of caribenol A features the diastereoselective formation of the seven …