Publications

2026

Electrochemical Functionalization of Pyridines

Satabdi Bera,† Tushar Singha,† Nakul Abhay Bapat,† and Durga Prasad Hari
Chem. Sci. 2026, Advanced Article
April 08, 2026

Skeletal Remodelling of Bicyclo[1.1.0]butanes to All-Carbon Quaternary Oxindoles

Rudra Pratap Singh, Athmanand Anchi, Javeed Ahmad Tali, Durga Prasad Hari
ChemRxiv
February 23, 2026

2025

Ring-Expansion of Ketones with [1.1.1]Propellane

Ganesh Arjun Kadam, Suparnak Midya, Vitalina Levchenko, Vadym Sham, Pavel K. Mykhailiuk and Durga Prasad Hari
J. Am. Chem. Soc. 2026, 148, 1, 388–399
December 12, 2025
Interrupted Dowd-Beckwith Reaction

Deconstructive Functionalization of Cyclic Ketones via Electrochemical Interrupted Dowd-Beckwith Reaction

Tushar Singha, Jyothirlatha V. N. Kasu and Durga Prasad Hari
Angew. Chem. Int. Ed. 2025, e202505155.
May 19, 2025

Strain-Enabled Radical-Polar Crossover Annulation to Access Spiro-, Fused-, and Enantioenriched-Aza/Oxa-Bicyclo[3.1.1]heptanes

Bhismalochan Ghorai†, Buddhadeb Sahana† and Durga Prasad Hari
Angew. Chem. Int. Ed. 2025, e202506747.
June 11, 2025

[2,3]-Sigmatropic rearrangement with [1.1.1]propellane

Suparnak Midya, Aksar Ali and Durga Prasad Hari
Nat. Commun. 2025, 16, 6233.
July 08, 2025

Photoinduced C–Cl Bond Activation of Polychloroalkanes with Triplet Carbenes: Synthetic Applications and Mechanistic Studies

Bina Das, Buddhadeb Sahana and Durga Prasad Hari
JACS Au 2025, 5, 1, 291–301.
January 15, 2025

Highly Stereoselective Catalytic Synthesis of Polysubstituted Housanes: Application and Mechanistic Insights

Abdur R. S. Mondal, Nakul A. Bapat, Harshita Mishra and Durga Prasad Hari
Chem. Sci., 2025,16, 12350-12361
June 04, 2025

Strain-Release Functionalization of N-Aryl Bicyclo[1.1.0]butane Sulfonamides to Access Spirocyclic Sultams

Manish Ranjan Sarkar†, Tushar Singha†, Subhayan Aich and Durga Prasad Hari
Org. Lett. 2025, 27, 10157−10162 (Front Cover).
August 29, 2025

2024

Visible-Light-Mediated Strain-Release Radical Spirocyclizations: Access to Functionalized Spirocyclobutanes

Tushar Singha and Durga Prasad Hari
Synlett 2025, 36, 05, 445-451. (Invited Account)
October 15, 2024

Rhodium(II)-Catalyzed Strain-Enabled Stereoselective Synthesis of Skipped Dienes

Ganesh A. Kadam, Tushar Singha, Sapna Rawat and Durga Prasad Hari
ACS Catal. 2024, 14, 16, 12225–12233.
August 01, 2024
Abstract

Photoredox Catalyzed Strain-Release Driven Synthesis of Functionalized Spirocyclobutyl Oxindoles

Tushar Singha,† Nakul A. Bapat,† Subrat K. Mishra† and Durga Prasad Hari
Org. Lett. 2024, 26, 30, 6396–6401.
July 24, 2024

2023

Abstract

Strain-Enabled Radical Spirocyclization Cascades: Rapid Access to Spirocyclobutyl Lactones and – Lactams

Kousik Das, Abhilash Pedada, Tushar Singha and Durga Prasad Hari
Chem. Sci. 2024, 15, 3182-3191.
December 21, 2023
Abstract

Highly Ddiastereoselective Strain-Release Doyle-Kirmse Reaction: Access to Functionalized Difluoro(methylene)cyclopropanes

Suparnak Midya and Durga Prasad Hari
Chem. Sci. 2023, 14, 13560-13567.
November 02, 2023
Abstract

Photoinduced Temperature-Regulated Selective Carbene C–H Insertion for the Synthesis of Functionalized Spiro-β-lactones and -lactams

Abdur R. S. Mondal, Bhismalochan Ghorai and Durga Prasad Hari
Org. Lett. 2023, 25, 27, 4974–4979 (Front Cover).
June 09, 2023
Abstract

Photocatalyzed Dowd-Beckwith Radical-Polar Crossover Reaction for the Synthesis of Medium-sized Carbocyclic Compounds

Tushar Singha, Ganesh A. Kadam and Durga Prasad Hari
Chem. Sci. 2023, 14, 6930-6935.
May 25, 2023
Abstract

The Dowd-Beckwith Reaction: History, Strategies, and Synthetic Potential

Tushar Singha, Abdur R. S. Mondal, Suparnak Midya and Durga Prasad Hari
Chem. Eur. J. 2022, 28, e202202025.
August 01, 2022
Radical ring rearrangements (RRR): This Review article discusses the origin and advancement of the Dowd–Beckwith reaction with particular focus on its application to complex natural products synthesis.

From PhD & Post Docs

Abstract

Stereospecific Conversion of Boronic Esters into Enones using Methoxyallene: Application in the Total Synthesis of 10-Deoxymethynolide

Kristian J. Chambers, Patthadon Sanghong, Daniel CarterMartos, Giorgia Casoni, Rory C. Mykura, Durga Prasad Hari, Adam Noble and Varinder Kumar Aggarwal
Angew. Chem. Int. Ed. 2023, 62, e202312054.
October 25, 2023
Abstract
X-Ray and NMR Structural Data of Ethynylbenziodoxolones (EBXs) Reagents and Their Analogues
Eliott Le Du, Nieves P. Ramirez, Stefano Nicolai, Rosario Scopelliti, Farzaneh Fadaei-Tirani, Matthew D. Wodrich, Durga Prasad Hari and Jerome Waser
Helv. Chim. Acta 2023, 106, e202200.
February 14, 2023
Abstract
Amphiphilic Iodine(III) Reagents for the Lipophilization of Peptides in Water
Abhaya Kumar Mishra, Romain Tessier, Durga Prasad Hari and Jerome Waser
Angew. Chem. Int. Ed. 2021, 60, 17963-17968.
May 26, 2021
Abstract
Highly Diastereoselective Strain-Increase Allylborations: Rapid Access to Alkylidenecyclopropanes and Alkylidenecyclobutanes
Durga Prasad Hari, Madhavachary, Valerio Fasano, Jack Haire and Varinder K. Aggarwal
J. Am. Chem. Soc. 2021, 143, 19, 7462–7470
May 05, 2021
Abstract
Low-Temperature Intramolecular [4+2] Cycloaddition of Allenes with Arenes for the Synthesis of Diene Ligands
Durga Prasad Hari, Guillaume Pisella, Matthew D. Wodrich, Artem V. Tsymbal and Jerome Waser
Angew. Chem. Int. Ed. 2021, 60, 5475-5481.
November 20, 2020
Abstract
Ring-Expansion Induced 1,2-Metalate Rearrangements: Highly Diastereoselective Synthesis of Cyclobutyl Boronic Esters
Durga Prasad Hari, Joseph C. Abell, Valerio Fasano and Varinder K. Aggarwal
J. Am. Chem. Soc. 2020, 142, 5515-5520.
March 07, 2020
Abstract
One-Pot Synthesis of 1-[(Triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1H)-one (TIPS-EBX)
Durga Prasad Hari, Paola Caramenti, Lionel Schouwey, Miyeon Chang, Stefano Nicolai, Donald Bachert, Timothy Wright, Chuck Orella and Jerome Waser
Org. Process Res. Dev. 2020, 24, 106-110.
December 24, 2019
Abstract
Ethynylbenziodazolones (EBZ) as Electrophilic Alkynylation Reagents for the Highly Enantioselective Copper‐Catalyzed Oxyalkynylation of Diazo Compounds
Durga Prasad Hari, Lionel Schouwey, Verity Barber, Rosario Scopelliti, Farzaneh Fadaei‐Tirani and Jerome Waser
Chem. Eur. J. 2019 , 25, 9522-9528
April 08, 2019
Abstract
Cyclic Hypervalent Iodine Reagents: Enabling Tools for Bond Disconnection via Reactivity Umpolung
Durga Prasad Hari, Paola Caramenti and Jerome Waser
Acc. Chem. Res. 2018, 51, 3212-3225.
November 28, 2018
Abstract

“Alkynylations and Vinylations” in The Chemistry of Hypervalent Halogen Compounds

Durga Prasad Hari, Nicolai Stefano and Jerome Waser
Book Chapter 12, Wiley-VCH Publisher, Weinheim, 2018
March, 2018
Abstract

“Arene Functionalizations by Photoredox Catalysis” in Visible Light Photocatalysis in Organic Chemistry

Durga Prasad Hari, Thea Hering and Burkhard Koenig
Book Chapter 8, Wiley-VCH Publisher, Weinheim, 2018
27 February, 2018
Abstract

Enantioselective Copper-Catalyzed Oxy-Alkynylation of Diazo Compounds

Durga Prasad Hari and Jerome Waser
J. Am. Chem. Soc. 2017, 139, 8420-8423.
16 June, 2017
Abstract

Cyclic Hypervalent Iodine Reagents for Atom-Transfer Reactions: Beyond Trifluoromethylation

Yifan Li, Durga Prasad Hari, Maria Victoria Vita and Jerome Waser
Angew. Chem., Int. Ed. 2016, 55, 4436-4454.
16 February, 2016
Abstract

Copper-Catalyzed Oxy-Alkynylation of Diazo Compounds with Hypervalent Iodine Reagents

Durga Prasad Hari and Jerome Waser
J. Am. Chem. Soc. 2016 , 138, 2190-2193.
12 February, 2016
Abstract

Proteome-Wide Profiling of Targets of Cysteine-reactive Small Molecules by using Ethynyl Benziodoxolone Reagents

Daniel Abegg, Reto Frei, Luca Cerato, Durga Prasad Hari, Chao Wang, Jerome Waser and Alexander Adibekian
Angew. Chem., Int. Ed. 2015, 54, 10852-10857.
24 July, 2015
Abstract

Visible Light-Mediated Metal-Free Synthesis of Vinyl Sulfones from Aryl Sulfinates

Andreas Uwe Meyer, Stefanie Jaeger, Durga Prasad Hari and Burkhard Koenig
Adv. Synth. Catal. 2015, 357, 2050-2054.
10 June, 2015
Abstract

Fast and Highly Chemoselective Alkynylation of Thiols with Hypervalent Iodine Reagents Enabled through a Low Energy Barrier Concerted Mechanism

Reto Frei, Matthew D. Wodrich, Durga Prasad Hari, Pierre-Antoine Borin, Clément Chauvier and Jerome Waser
J. Am. Chem. Soc. 2014, 136, 16563-16573.
01 November, 2014
Abstract

Synthetic Applications Enabled by Eosin Y as a Photoredox Catalyst Concerted Mechanism

Durga Prasad Hari and Burkhard Koenig
Chem. Commun. 2014, 50, 6688-6699.
26 March, 2014
Abstract

The Photoredox catalyzed Meerwein Addition Reaction: Intermolecular Amino-Arylation of Alkenes

Durga Prasad Hari, Thea Hering and Burkhard Koenig
Angew. Chem., Int. Ed. 2014, 53, 725-728.
04 December, 2013
Abstract

Synthetic Applications of Aryl Diazonium Salts Enabled by Visible Light Photoredox Catalysis

Durga Prasad Hari, Thea Hering and Burkhard Koenig
Chemistry Today, 2013, 31, 59-63.
July, 2013
Abstract

The Photocatalyzed Meerwein Arylation: Classic Reaction of Aryl Diazonium Salts in a New Light

Durga Prasad Hari and Burkhard Koenig
Angew. Chem., Int. Ed. 2013, 52, 4734-4743.
10 April, 2013
Abstract

Visible Light Mediated α-Arylation of Enol Acetates using Aryl Diazonium Salts

Thea Hering, Durga Prasad Hari and Burkhard Koenig
J. Org. Chem. 2012, 77, 10347-10352.
27 October, 2013
Abstract

Visible Light Photocatalytic Synthesis of Benzothiophenes

Durga Prasad Hari, Thea Hering and Burkhard Koenig
Org. Lett. 2012, 14, 5334-5337.
05 October, 2012
Abstract

Photocatalytic Arylation of Alkenes, Alkynes and Enones with Diazonium Salts

Peter Schroll, Durga Prasad Hari and Burkhard Koenig
Chemistry Open. 2012, 1, 130-133.
27 April, 2012
Abstract

Metal free, Visible Light Mediated Direct C-H Arylation of Heteroarenes with Aryl Diazonium Salts

Durga Prasad Hari, Peter Schroll and Burkhard Koenig
J. Am. Chem. Soc. 2012, 134, 2958-2961.
30 January, 2012
Abstract

Eosin Y Catalyzed Visible Light Oxidative C-C and C-P Bond Formation

Durga Prasad Hari and Burkhard Koenig
Org. Lett. 2011, 13, 3852-3855.
11 July, 2011