Annulating thiazolium cations via a direct double C–H activation strategy: Rh–N,S-heterocyclic carbene is the key

Champak Dutta, Arppitha Baby Sainaba and Joyanta Choudhury

Chem. Commun., 2019, 55, 854
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Efficient synthetic approach to m-terphenyl derivatives via arylation of azolium salts

Subarna Kar, Arya Ramachandran and Arnab Rit

Chem. Commun., 2025, 61, 16802
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Rh(iii)-catalyzed C-7 arylation of indolines with arylsilanes via C–H activation

Haiqing Luo, Qi Xie, Kai Sun, Jianbo Deng, Lin Xu, Kejun Wang and Xuzhong Luo

RSC Adv., 2019, 9, 18191
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Rh(iii)-Catalysed synthesis of cinnolinium and fluoranthenium salts using C–H activation/annulation reactions: organelle specific mitochondrial staining applications

Sivakalai Mayakrishnan, Masilamani Tamizmani, Chandrasekar Balachandran, Shin Aoki and Narayanan Uma Maheswari

Org. Biomol. Chem., 2021, 19, 5413
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Orchestrated catalytic double rollover annulation: rapid access to N-enriched cationic and neutral PAHs

Pirudhan Karak, Champak Dutta, Tanoy Dutta, Apurba Lal Koner and Joyanta Choudhury

Chem. Commun., 2019, 55, 6791
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Cationic π-extended heteroaromatics via a catalytic C–H activation annulative alkyne-insertion sequence

Pirudhan Karak, Samim Sohel Rana and Joyanta Choudhury

Chem. Commun., 2022, 58, 133
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1,3-Dipolar cycloaddition of azomethine ylides and imidoyl halides for synthesis of π-extended imidazolium salts

Qiang-Qiang Li, Yosuke Hamamoto, Cheryl Cai Hui Tan, Hiroyasu Sato and Shingo Ito

Org. Chem. Front., 2022, 9, 4128
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Ion mobility mass spectrometry uncovers regioselectivity in the carboxylate-assisted C–H activation of palladium N-heterocyclic carbene complexes

Laura Ibáñez-Ibáñez, Andres Mollar-Cuni, Edmond Apaloo-Messan, Akhilesh K. Sharma, Jose A. Mata, Feliu Maseras and Cristian Vicent

Dalton Trans., 2024, 53, 656
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Recent advances in Rh(iii)/Ir(iii)-catalyzed C–H functionalization/annulation via carbene migratory insertion

Sanjeev Kumar, Saiprasad Nunewar, Srilekha Oluguttula, Srinivas Nanduri and Vinaykumar Kanchupalli

Org. Biomol. Chem., 2021, 19, 1438
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Green Method for Constructing Phthalides via Oxidative Coupling of Aromatic Acids and Acrylates in Neat Water and Air

Wenting Wei, Zhuangzhuang Li, Wandi Li, Jiaqi Li and Xianying Shi

Chinese Journal of Organic Chemistry, 2023, 43, 1177
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Rh(III)‐Catalyzed [3+2] Annulation and C−H Alkenylation of Indoles with 1,3‐Diynes by C−H Activation

Sanjeev Kumar, Saiprasad Nunewar, Khan Mohammad Usama and Vinaykumar Kanchupalli

Eur J Org Chem, 2021, 2021, 2223
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Serendipitous Formation of a Zwitterionic Imidazolium Molecule from α‐Diimine with Glyoxal as Unusual Cyclization Agent

Lorenzo Biancalana, Giulio Bresciani, Fabio Marchetti and Guido Pampaloni

ChemistrySelect, 2021, 6, 10051
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Ru(II)‐Catalyzed C─H Annulation of Imidazo[1,5‐a]Quinolines with Alkynes: A Direct Route to Functionalized Quinolizines

Monuranjan Konwar, Nitumoni Hazarika and Animesh Das

ChemCatChem, 2025, 17
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Synthesis of Axially Chiral Cationic Benzo[c]phenanthridinium Derivatives

Brian Castro Agudelo, Florian Rigoulet, Michel Giorgi, Babak Sayah, Jean Rodriguez and Yoann Coquerel

Synthesis, 2022, 54, 5035
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Recent Advances in Metal Catalyzed C−H Functionalization with a Wide Range of Directing Groups

Muhammad Siddique Ahmad and Kamel Meguellati

ChemistrySelect, 2022, 7
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Multifunctional Fluorescent Main-Chain Charged Polyelectrolytes Synthesized by Cascade C–H Activation/Annulation Polymerizations

Kang Wang, Junkai Liu, Peiying Liu, Dong Wang, Ting Han and Ben Zhong Tang

J. Am. Chem. Soc., 2023, 145, 4208
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Rhodium‐Catalyzed Copper‐Assisted Intermolecular Domino C−H Annulation of 1,3‐Diynes with Picolinamides: Access to Pentacyclic π‐Extended Systems

Ángel Manu Martínez, Inés Alonso, Nuria Rodríguez, Ramón Gómez Arrayás and Juan C. Carretero

Chemistry A European J, 2019, 25, 5733
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Direct Access to meta‐Alkylated N‐Arylazolium Salts via Ruthenium Catalyzed Electronically Controlled Site Selective Functionalization: Scope and Mechanistic Aspect

Somnath Bauri, Shashi Kumar and Arnab Rit

Adv Synth Catal, 2023, 365, 2385
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Diazapentabenzocorannulenium: A Hydrophilic/Biophilic Cationic Buckybowl

Qiang‐Qiang Li, Yosuke Hamamoto, Germain Kwek, Bengang Xing, Yongxin Li and Shingo Ito

Angewandte Chemie, 2022, 134
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Imidazo[1,5‐a]pyridine – Eine Vielseitige Plattform für Strukturell Einzigartige N‐Heterocyclische Olefine und π‐Ausgedehnte Heterocyclen

Robin Esken, Patrick W. Antoni, Yannick Lorenz, Chris Burdenski, Jan‐Lukas Kirchhoff, Carsten Strohmann and Max M. Hansmann

Angewandte Chemie, 2025, 137
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Access to Functionalized Azolium Salts via Regiospecific Alkylation with Unactivated Alkenes: Scope and Mechanistic Insight

Arya Ramachandran, Somnath Bauri and Arnab Rit

ChemCatChem, 2025, 17
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Rh(III)-catalyzed C H activation/intramolecular annulation for the synthesis of N-methoxydihydropyrimidin-2-one fused heterocycles

Youchun Huang, Ke Kang, Xiuwen Zhong, Yongping Yu and Wenteng Chen

Tetrahedron Letters, 2023, 115, 154311
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Synthesis of π-Extended Heterocycles via Rh(III)-Catalyzed Oxidative Annulation of 5-Aryl Pyrazinones with Alkynes

Harin Oh, Hee Won Byun, Kyeongwon Moon, Saegun Kim, Prithwish Ghosh, Won An, Jong Hwan Kwak, Jung Su Park, Neeraj Kumar Mishra and In Su Kim

J. Org. Chem., 2021, 86, 16349
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Introducing Ion Mobility Mass Spectrometry to Identify Site-Selective C–H Bond Activation in N-Heterocyclic Carbene Metal Complexes

Andrés Mollar-Cuni, Laura Ibáñez-Ibáñez, Gregorio Guisado-Barrios, Jose A. Mata and Cristian Vicent

J. Am. Soc. Mass Spectrom., 2022, 33, 2291
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Metal‐Catalyzed C─H Activation for the Synthesis and Applications of Polysubstituted Quaternary Ammonium Salts

Ramesh Sanjana, Jayachandran Jayakumar and Kanniyappan Parthasarathy

Asian J Org Chem, 2025, 14
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Imidazo[1,5‐a]pyridines – A Versatile Platform for Structurally Distinct N‐Heterocyclic Olefins and π‐Extended Heterocycles

Robin Esken, Patrick W. Antoni, Yannick Lorenz, Chris Burdenski, Jan‐Lukas Kirchhoff, Carsten Strohmann and Max M. Hansmann

Angew Chem Int Ed, 2025, 64
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Naphthyl-Derived Orthometalated RuII-NHC Complexes: Effect of the NHC Donors and/or Substitution Pattern on Their Synthesis and Catalytic Activity

Somnath Bauri, Anirban Mallik and Arnab Rit

Organometallics, 2020, 39, 3362
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N‐Heterocyclic Carbenes as Key Intermediates in the Synthesis of Fused, Mesoionic, Tricyclic Heterocycles

Idir Benaissa, Lenka Pallova, Marie‐Emilie Morantin, Thomas Lafitte, Mathieu Huynh, Cécile Barthes, Laure Vendier, Noël Lugan, Stéphanie Bastin and Vincent César

Chemistry A European J, 2019, 25, 13030
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Synthesis and Characterization of Arsenic(III) Oxide Nanoparticles as Potent Inhibitors of MCF 7 Cell Proliferation through Proapoptotic Mechanism

Biswajit Das, Hasimur Rahaman, Sujit Kumar Ghosh and Mahuya Sengupta

BioNanoSci., 2020, 10, 420
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Diazapentabenzocorannulenium: A Hydrophilic/Biophilic Cationic Buckybowl

Qiang‐Qiang Li, Yosuke Hamamoto, Germain Kwek, Bengang Xing, Yongxin Li and Shingo Ito

Angew Chem Int Ed, 2022, 61
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Base‐catalyzed Effective C2‐Amidation of Azolium Salts Using Isocyanates under Mild Conditions

Somnath Bauri, Arya Ramachandran and Arnab Rit

Chemistry An Asian Journal, 2023, 18
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N-Heterocyclic Carbene Complexes in C–H Activation Reactions

Qun Zhao, Guangrong Meng, Steven P. Nolan and Michal Szostak

Chem. Rev., 2020, 120, 1981
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Rh(III)‐Catalyzed Perimidine Directed C−H Activation/Annulation for the Synthesis of Hexacyclic Cationic Azaperylenes

Hui Li, Haidan Gao, Mingming Yu, Dan Yang, Shiqing Li and Jinhua Wang

Eur J Org Chem, 2026, 29
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Traceless Directing Groups in Sustainable Metal-Catalyzed C–H Activation

Athanasios Zarkadoulas, Ioanna Zgouleta, Nikolaos V. Tzouras and Georgios C. Vougioukalakis

Catalysts, 2021, 11, 554
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Design, Synthesis, and Optical Properties of Novel Benzo[d]oxazolo[2,3‐a]isoquinoliniums

Mio Matsumura, Megu Morishita, Yuki Ohno, Masato Kawakubo, Yuki Murata and Shuji Yasuike

Journal of Heterocyclic Chem, 2025, 62, 1672
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Co(III), Rh(III) & Ir(III)‐Catalyzed Direct C−H Alkylation/Alkenylation/Arylation with Carbene Precursors

Saiprasad Nunewar, Sanjeev Kumar, Srilakshmi Talakola, Srinivas Nanduri and Vinaykumar Kanchupalli

Chemistry An Asian Journal, 2021, 16, 443
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Ruthenium(II)‐Catalyzed Oxidative Annulation of Imidazo[1,5‐a]quinolin‐2‐iums Salts and Internal Alkynes via C−H Bond Activation

Monuranjan Konwar, Nitumoni Hazarika, Bikash Kumar Sarmah and Animesh Das

Chemistry A European J, 2024, 30
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Spiro[indene-1,4′-oxa-zolidinones] Synthesis via Rh(III)-Catalyzed Coupling of 4-Phenyl-1,3-oxazol-2(3H)-ones with Alkynes: A Redox-Neutral Approach

Zhongsu Liu, Wenjing Zhang, Shan Guo and Jin Zhu

J. Org. Chem., 2019, 84, 11945
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Recent Advances in the Syntheses and Catalytic Applications of Homonuclear Ru‐, Rh‐, and Ir‐Complexes of CNHC^C Cyclometalated Ligands

Chandra Shekhar Tiwari, Praseetha Mathoor Illam, S. N. R. Donthireddy and Arnab Rit

Chemistry A European J, 2021, 27, 16581
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Rh(III)‐Catalyzed Regioselective [3+2]‐Annulation of Indoles with 1,3‐Enynes to Access 3H‐pyrrolo[1,2‐a]indol‐3‐ones

Sanjeev Kumar, Pradeep Girase, Sayali Pradeep Jadhav, Bhargav Desai, Togati Naveen and Vinaykumar Kanchupalli

Asian J Org Chem, 2025, 14
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Bidentate Directing Groups: An Efficient Tool in C–H Bond Functionalization Chemistry for the Expedient Construction of C–C Bonds

Supriya Rej, Yusuke Ano and Naoto Chatani

Chem. Rev., 2020, 120, 1788
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Ru/O2-Catalyzed Oxidative C–H Activation/Alkyne Annulation Using Quinoline-Functionalized NHC as a Directing and Functionalizable Group

Monuranjan Konwar, Nitumoni Hazarika and Animesh Das

Org. Lett., 2024, 26, 2965
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(Benz)imidazo[1,2‐a]quinolinium Salts: Access via Unprecedented Regiospecific non‐AAIPEX Strategy and Study of Their Tunable Properties

Somnath Bauri, Arya Ramachandran and Arnab Rit

Chemistry A European J, 2024, 30
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Synthesis of Bridged and Fused Tetracycles via Rhodium‐Catalyzed C−H Allylation/Cycloaddition of Azomethine Imines with MBH Adducts and Allyl Acetates

Yang Sun, Yiyan Wang, Lijun Zhang, Rui Zhong and Hui Wang

Asian J Org Chem, 2025, 14
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