The developments of theoretical studies on NHC‐catalyzed [n+ 2](n= 2, 3, 4) and other
cycloaddition/annulation reactions have been summarized in this review. The detailed …

The pyrrolo [1, 2-a] indole unit is a privileged heterocycle found in numerous natural
products and has been shown to exhibit diverse pharmacological properties. Thus, recent …

The first atroposelective synthesis of pyrrolo [3, 4-b] pyridines catalyzed by N-heterocyclic
carbene has been achieved. A wide range of chiral atropisomers of pyrrolo [3, 4-b] pyridines …

Organocatalytic domino processes have become a rapidly growing area of research. N-
heterocyclic carbenes (NHCs) have emerged as powerful organocatalysts for various …

Functionalization of the indole N–H bond for enantioselective synthesis of biologically
important pyrroloquinoline derivatives has been reported under oxidative N-heterocyclic …

Progress in Heterocyclic Chemistry (PHC) is an annual review series commissioned by the
International Society of Heterocyclic Chemistry (ISHC). Volumes in the series contain both …

An efficiently stereoselective [4+ 2] cycloaddition of 3-alkylenyloxindoles and α-
diazoketones through sequential visible-light photoactivation and N-heterocyclic carbene …

Straightforward access to [1, 2]-annulated indoles, key substructures in natural products, is
highly desirable yet challenging. Herein, a radical triggered fragmentary cyclization cascade …

A catalytic asymmetric decarboxylative [3+ 2] annulation via indolyl copper–allenylidene
amphiphilic intermediates has been developed. This protocol offers a straightforward …

The enantioselective [3+ 4] annulation of 3-formylindol-2-methyl-malonates with 2-
bromoenals catalyzed by NHCs is described to afford functionalized azepino [1, 2-a] indoles …