A convenient one‐pot method for the synthesis of various substituted succinimides has been developed. By starting from commercially available amines (or ammonia) and alkynes, a range of interesting succinimides have been obtained selectively in the presence of either [Fe(CO)5] or [Fe3(CO)12] (see scheme; R′=H, alkyl, aryl; R′′, R′′′=alkyl, aryl).

No abstract

Eine einstufige Synthese mit [Fe(CO)5] oder [Fe3(CO)12] als Katalysator führt ausgehend von kommerziell erhältlichen Aminen oder Ammoniak und Alkinen zu unterschiedlich substituierten Succinimiden. Die Umsetzungen sind äußerst selektiv und liefern ein breites Spektrum an Produkten (siehe Schema; R′=H, Alkyl, Aryl; R′′, R′′′=Alkyl, Aryl).

A straightforward two-step synthesis of trans-3,4-disubstituted succinimides through a palladium-catalyzed Sonogashira reaction and an iron-catalyzed double carbonylation is described. In situ oxidative dehydrogenation gave the corresponding 3,4-diarylmaleimides. By starting from readily available aryl and heteroaryl halides, a variety of new analogues and derivatives of bioactive 3,4-bisindolylmaleimides are obtained in good yield and selectivity.

Isn't it iron‐ic: An iron‐catalyzed [2+1+1+1]‐annulation strategy is used for the construction of five‐membered maleimides, which are building blocks for naturally occurring himanimides A and B.