Take two: α‐Diazocarbonyl compounds display a diverse pattern of reactivity upon palladium‐catalyzed reaction with esters. Esters bearing an alkynyl group on the carbonyl carbon atom lead to two different CC bonds at the same carbon atom in a single operation through decarboxylation and migratory insertion, whereas aromatic and benzylic acid derivatives afford aromatic and benzylic esters bearing an O‐substituted quaternary carbon center.

A mild platinum-catalyzed oxidative dehydrogenation of alpha,beta-C(sp(3))-H bonds of tertiary amines in the presence of ambient oxygen is revealed, and the in situ formed enamines subsequently reacting with various nitroolefins resulted in the development of two one-pot synthetic protocols involving Michael addition-elimination and Michael addition-cyclization. By using different functionalized nitroolefins compatible with the current oxidative conditions, two types of structurally divergent products, trisubstituted enamines and chromano[2,3-b]piperidines, could be expediently accessed, respectively.

Highly substituted 3-iodoquinolines bearing different alkyl and aryl moieties can be synthesized in moderate to excellent yields (up to 99%) by 6-endo-dig iodocyclization of 2-tosylaminophenylprop-1-yn-3-ols with molecular iodine (I(2)) under mild conditions. The cyclization is highly regioselective and the resulting 3-iodoquinolines can be further functionalized by various coupling reactions.

Größer als 700 Å3 ist das berechnete Innenvolumen eines [Ga4L6]‐Clusters, der mit einem 1,1′‐Binaphthylderivat als Ligand erhalten wurde. Wegen der Größe des Hohlraums wird für die supramolekulare Selbstorganisation ein Gastmolekül geeigneter Größe und Form benötigt (siehe Schema).

Highly substituted 2-aminated indoles can be prepared in moderate to excellent yields by regioselective C2-amination of indoles promoted by iodine. As a key step in a concise synthesis of (±)-folicanthine, its core structure was easily obtained by one step cyclization-dimerization of substituted tryptophan in high yield on a gram scale.