Related Experiment Video
Updated: Jun 17, 2026

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
Published on: November 29, 2018
Synthesis of mesoionic carbene-triazole-based Pd(II) complex: promoting C-H activation toward N-aryl carbazoles
Puneet Singh Gahlaut1, Bhawana Shekhawat1, Prem Lama2
1Organometallic and Supramolecular Chemistry Laboratory (OMSCL), Department of Chemistry, Malaviya National Institute of Technology Jaipur, JLN Marg, Jhalana Gram, Malviya Nagar, Jaipur, Rajasthan, 302017, India. barun.chy@mnit.ac.in.
Abstract:
Here, we report a triazolylidene-based mesoionic carbene (MIC) Pd(II) complex as an efficient catalyst for the synthesis of N-aryl carbazoles via an intermolecular C-H amination reaction. The developed system shows high catalytic activity without phosphorus-based additives and delivers diverse carbazole derivatives in good to excellent yields. Further, these N-aryl carbazoles can be post-functionalized at the C1 selective position, including nitration with AgNO3 (4a) and chalcogenation with disulfides and diselenides (5a). The molecular structure of the Pd-MIC complex was confirmed by X-ray crystallography. Further, several control experiments were performed to support the proposed plausible catalytic pathway.
More Related Videos
06:34Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)
Published on: June 20, 2014
19:58Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Related Concept Videos
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Nucleophilic Aromatic Substitution: Elimination–Addition