top of page

This site was designed with the

website builder. Create your website today.Start Now

Srimani Lab

Catalysis for Sustainable Future

Ask the right questions, and nature will open the doors to her secrets I am the master of my failure… If I never fail how will I ever learn

-C. V. Raman

61 Inorganic Chemistry 2026, 65, 25440-25452

images 2.jfif

PNNH–Ru-Catalyzed Highly E-Selective Semi-Hydrogenation of Alkynes Using MeOH as a Hydrogen Donor

Rajashri Sarmah; Debjyoti Pal; Soumen Ghosh;Avijit Mondal; Kailash Mohar; Rohit Baran Bera; Dipankar Srimani *

60 Catal. Sci. Technol., 2026, 1 6 , 7401–7406.

Mn(II)-Catalyzed Dehydrogenative Synthesis of 3-Oxo and 3-Amino Quinolines from Amino Aryl Alcohols and β-O-4 Lignin Analogues: Experimental and Theoretical Insights

Kailash Mohar; Kaushik Soni; Hirak Jyoti Phukan; Avijit Mondal; Rohit Baran Bera; Priyankar Majumder; Dipankar Srimani*

Themed collections: Innovations in catalysis with earth-abundant metals

59 Chem. Commun., 2026, 62,18302–18320

Beyond Phosphines: Phosphine-Free Manganese Catalyst for the Green Generation and Shuttling of Hydrogen for Sustainable Transformation

Rahul Sharma, Kailash Mohar, Avijit Mondal and Dipankar Srimani*

Feature Article

TOC chm.png

HPTOC.tif

Mn(II)-Catalyzed Switchable Synthesis of P(O)–C and P(O)–O Bonds from Alcohols and Diarylphosphine Oxides via PhosphaBrook Rearrangement

Hirak Jyoti Phukan, Arup Samanta, Kailash Mohar, Avijit Mondal, Rinku Dihingia and Dipankar Srimani*

58 Chem. Commun., 2026, 62, 9676-9679

57 Org. Lett. 2026, 28, 13, 4305–4311

Visible-Light-Enabled Sulfonyl Radical-Triggered Cyclization Strategy for the Efficient Synthesis of Benzosultams

Mithu Roy, Sanatjit Kar, Masthan Thamim, Anirban Bera, Sudipta Siuli, Debdas Dhabal,* and Dipankar Srimani*

56 Organometallics 2025, 44, 19, 2172–2181

Exploring the Potential of a Non-Phosphine Cobalt System for Alcohol Activation: Expedition of C−C and C−N Bond Formation

Rahul Sharma, Kailash Mohar, Avijit Mondal, Elinda Basumatary, Kaushik Soni and Dipankar Srimani*

Visible-Light Mediated Divergent Synthesis of Sulfonylated Dihydropyrrole-3-Carboxaldehydes and Tricyclic Sulfones viaSulfonyl Radical Source Modulation

Mithu Roy, Itu Mallick, Sudipta Siuli, Anirban Bera and Dipankar Srimani*

CEJ 2.webp

55 Chem.Eur. J. 2025, 31, 26, 2025-2052

54 Chem. Commun. 2025, 61, 12582-12585

Merging metal-ligand cooperation and redox promoted strategy for tailored synthesis of alkylated 9H-Fluorenes

Arup Samanta, Hirak Jyoti Phukan, Ujjwal Kumar Tripathi and Dipankar Srimani*

toc2.tif

53 Org. Lett. 2025, 27, 23, 6132–6137

Manganese Complex-Catalyzed (De)hydrogenative Cyclizationtoward the Selective Synthesis of 2‑Substituted and 2,3-Disubstituted 4‑Quinolones

Debjyoti Pal, Bitan Sardar, Avijit Mondal , Kailash Mohar, Rajashri Sarmah, Hirak Jyoti Phukan, Rohit Baram Bera and Dipankar Srimani*

DP OL.jpeg

52 Chem. Commun., 2025,61, 4796-4799

Designing NNO-Manganese Complex Overcoming Steric Constraints in (De)hydrogenative Coupling

Avijit Mondal , Hirak Jyoti Phukan, Kailash Mohar, Debjyoti Pal, Rahul Sharma, Siddhartha Purkayastha, Ankur Kanti Guha,* and Dipankar Srimani*

51 Org. Lett. 2024, 26, 9357−9362

Substituent-Dependent, Switchable Synthesis of Nonaromatic and Aromatic Heterocyclic Sulfones Using Visible Light

Mithu Roy, Itu Mallick, Manami Mahapatra, and Dipankar Srimani*

50 Organometallics 2024, 43, 2697–2702

Unveiling the Potential of SNS-Ni Complex for Establishing C−N Bonds: An Approach toward Chemoselectivity

Rahul Sharma, Avijit Mondal, Suman Maji and Dipankar Srimani*

TOC RS.jpeg

49 Org. Biomol. Chem., 2024, 22, 8602-8607

Well-defined Cobalt(II) Catalyzed Synthesis of Perimidine Derivatives via Acceptorless Dehydrogenative Annulation

Debjyoti Pal, Rajashri Sarmah, Avijit Mondal, Itu Mallick and Dipankar Srimani*

TOC OBC Tiff.tiff

48 Chem. Commun. 2024, 60, 10398-10401

Redox-enabled cooperative catalysis by activating secondary alcohols using low-valent Zn complexes

Arup Samanta, Amit Chaubey, Debjyoti Pal, Krishna Majhi, and Dipankar Srimani*

toc as1_edited_edited.jpg

47 Synlett 2024, 35, 2429-2434

Activating Methanol for Chemoselective Transfer Hydrogenation of Chalcones using SNS-Ru Complex

Kailash Mohar, Hirak J Phukan, Avijit Mondal, Kaushik Soni, Dipankar Srimani*

Invited Article

46 Beilstein J. Org. Chem. 2024, 20, 1348–1375

Generation of alkyl and acyl radicals by visible-light photoredox catalysis: direct activation of C–O bonds in organic transformations

Mithu Roy, Bitan Sardar, Itu Mallick and Dipankar Srimani*

BJOC TOC.png

45 Chem. Commun., 2024, 60, 4056–4059

Experimental and Theoretical Insights for Designing Zn2+ Complexes to Trigger Chemo-selective Hetero-Coupling of Alcohols

Arup Samanta, Prativa Behera, Amit Chaubey, Avijit Mondal, Debjyoti Pal, Kailash Mohar, Lisa Roy*, and Dipankar Srimani*

44 Org. Lett. 2024, 26, 2, 514–518

Designing Cobalt(II) Complexes for Tandem Dehydrogenative Synthesis of Quinoline and Quinazoline Derivatives

Debjyoti Pal, Avijit Mondal, Rajashri Sarmah, and Dipankar Srimani*

TOC DEBU.jpeg

43 ChemSusChem 2024,e202301138

Manganese Complex Catalyzed Sequential Multi-component Reaction: Enroute to a Quinoline-Derived Azafluorenes

Avijit Mondal, Debjyoti Pal, Hirak Jyoti Phukan, Mithu Roy, Saurabh Kumar, Siddhartha Purkayastha, Ankur Kanti Guha,* Dipankar Srimani*

42 Chem.Eur. J. 2024, 30, e2023033

CEJ 2.webp

Well-defined Mn(II)-complex Catalyzed Switchable De(hydrogenative) Csp3-H Functionalization of Methyl Heteroarenes: A Sustainable Approach for Diversification of Heterocyclic Motifs

Avijit Mondal, Hirak Jyoti Phukan, Debjyoti Pal, Saurabh Kumar, Mithu Roy, and Dipankar Srimani*

TOC r.tif

41 Chem. Commun., 2023,59, 9267-9270

Ruthenium Catalyzed Dehydrogenative Cyclization to Synthesize Polysubstituted 4-Quinolones under Solvent-Free Condition

Bitan Sardar, Debjyoti Pal, Rajashri Sarmah, Dipankar Srimani*

toc 4 chem.png

40 Tetrahedron., 2023,138, 133414

Concept and progress on the de(hydrogenation) and hydrogenation reactions using transition metal integrated layered double hydroxides (LDHs)

Bitan Sardar, Dipankar Srimani*

Invited Review Article

Bitan Da toc.jpg

39 Catal. Sci. Technol., 2023,13, 611-617

cat scie tech.jpg

A Strategic Approach For Csp3 -H Functionalization of 9H-Fluorene: A Acceptorless Dehydrogenation and Borrowing Hydrogen Approach

Rahul Sharma, Avijit Mondal, Arup Samanta, and Dipankar Srimani*

38 Organometallics 2023, 42, 55–61

Ruthenium Pincer-Catalyzed Selective Synthesis of Alkanes and Alkenes via Deoxygenative Coupling of Primary Alcohols

Bitan Sardar, Nandita Biswas, and Dipankar Srimani*

Bitan Da TOC.webp

37 Synlett 2023, 34, 622-628

Acridine Based SNS-Ruthenium Pincer Complex Catalysed Borrowing Hydrogen Mediated C-C Alkylation Reaction: Application Towards Guerbet Reaction

N. Biswas, R. Sharma, B.Sardar and D. Srimani*

"Chemical Synthesis and Catalysis in India"- Invited Article

36 Org. Lett. 2022, 24, 8180–8185

Change in the Product Selectivity in the Visible Light-Induced Selenium Radical-Mediated 1,4-Aryl Migration Process

Mithu Roy, Ramen Jamatia, Arup Samanta, Kailash Mohar, and Dipankar Srimani*

35 Org. Biomol. Chem., 2022,20, 7998-8030

Progressive Study on Ruthenium Catalysis for De(hydrogenative) Alkylation and Alkenylation Using Alcohols as Sustainable Source

Rahul Sharma, Arup Samanta, Bitan Sardar, Mithu Roy and Dipankar Srimani*

Invited Review Article

34 Adv. Synth. Catal. 2022, 364, 2429–2437

Screenshot 2022-05-23 184341.jpg

Well-defined Ni-SNS Complex Catalysed Borrowing Hydrogenative α-Alkylation of Ketones and Dehydrogenative Synthesis of Quinolines

R. Sharma, A. Mondal, A. Samanta, N. Biswas, B. Das and D. Srimani*

TOC final.jpg

33 J. Org. Chem. 2022, 87, 9, 5556–5567

Ru Doped Hydrotalcite Catalyzed Borrowing Hydrogen-Mediated N-Alkylation of Benzamides,Sulfonamides, and Dehydrogenative Synthesis of Quinazolinones

B. Sardar, R. Jamatia, A. Samanta and D. Srimani*

32 Catal. Sci. Technol., 2022,12, 3202-3208

cat scie tech.jpg

Well-defined Manganese Complex Catalyzed Dehydrogenative Synthesis of Quinazolin-4(3H)-ones and 3,4-Dihydro-2H-1,2,4- benzothiadiazine 1,1-Dioxides

D. Pal, A. Mondal and D. Srimani*

31 J. Org. Chem. 2022, 87, 6, 3989–4000

Well-Defined NNS-Mn Complex Catalyzed Selective Synthesis of C‑3 Alkylated Indoles and Bisindolylmethanes Using Alcohol

A. Mondal, R. Sharma, B. Dutta D. Pal and D. Srimani*

30 Chem. Commun., 2021,57, 10363-10366

chem comm 2021.JPG

Manganese Catalyzed Switchable C- Alkylation/Alkenylation of Fluorenes and Indene with Alcohols

A. Mondal, R. Sharma, D. Pal and D. Srimani*

TOC_05.09_edited.jpg

joc 5.jpeg

Ru-Catalyzed Selective Catalytic Methylation and Methylenation Reaction Employing Methanol as the C1 Source

N. Biswas and D. Srimani*

joceah.2021.86.issue-12.largecover.jpg

29 J. Org. Chem. 2021, 86, 15, 10544–10554

joc 3.JPG

Synthesis of 1,8-Dioxo-decahydroacridine Derivatives via Ru Catalyzed Acceptorless Dehydrogenative Multicomponent Reaction

N. Biswas and D. Srimani*

joceah.2021.86.issue-12.largecover.jpg

28 J. Org. Chem. 2021, 86, 14, 9733–9743

27 Asian J. Org. Chem. 2021, 10, 2195

Multicomponent Dehydrogenative Synthesis of Acridine-1,8-diones Catalyzed by Ru-doped Hydrotalcite

B. Sardar, R. Jamatia, D. Pal and D. Srimani*

“Early Career Special Collection-2021”- Invited Article

asian joc.JPG

26 Eur. J. Org. Chem. 2021, 2021, 3690

ejoc 1.jpg

Recent Progress in the Synthesis of Heterocycles via Base Metal-catalyzed Acceptorless Dehydrogenative and Borrowing Hydrogen Approach

A. Mondal, R. Sharma, D. Pal and D. Srimani*

25 Adv. Synth. Catal. 2021, 363, 2969-2995

adv synthe 1.jpg

Visible‐Light‐Induced Manganese‐Catalyzed Reactions: Present Approach and Future Prospects (VIP Article)

R. Jamatia, A. Mondal and D. Srimani*

24 Adv. Synth. Catal. 2020, 362, 2902-2910

adv synthe 1.jpg

Ruthenium Pincer Complex Catalyzed Selective Synthesis of C‐3 Alkylated Indoles and Bisindolylmethanes Directly from Indoles and Alcohols

N. Biswas, R. Sharma and D. Srimani*

TOC 2.jpg

23 Organometallics 2020, 39, 2, 279–285

Redox noninnocent nature of acridine-based pincer complexes of 3d metals and C–C bond formation

P. Daw, A. Kumar, D. Oren, N. Angel Espinosa-Jalapa, D. Srimani, Y. Diskin-Posner, G. Leitus,

L.JW Shimon, R. Carmieli, Y.Ben-David and D. Milstein

22 Org. Lett. 2019, 21, 9, 3223–3227.

ol 1.jpg

Sustainable Synthesis of Quinazoline and 2-Aminoquinoline via Dehydrogenative Coupling of 2-Aminobenzyl Alcohol and Nitrile Catalyzed by Phosphine-Free Manganese Pincer Complex

K. Das, A. Mondal, D. Pal and D.Srimani*

Highlighted in Organic Chemistry Portal

Phosphine-Free Well-Defined Mn(I )Complex-Catalyzed Synthesis of Amine, Imine, and 2,3-Dihydro1H- perimidine via Hydrogen Autotransfer or Acceptorless Dehydrogenative Coupling of Amine and Alcohol

K. Das, A. Mondal, D. Pal, H. K. Srivastava* and D. Srimani*

21 Organometallics 2019, 38, 8, 1815-1825

dalton 1.JPG

Acceptorless dehydrogenative construction of C=N and C=C bonds through catalytic aza-Wittig and Wittig reactions in the presence of an air-stable ruthenium pincer complex

N. Biswas, K. Das, B. Sardar and D.Srimani*

20 Dalton Trans., 2019, 48, 6501–6512

19 Chem. Commun., 2018,54, 10582-10585

chem comm 1.JPG

Phosphine Free Mn-complex catalysed dehydrogenative C-C and C-Heteroatom bond formation: a sustainable approach to synthesize quinoxaline, pyrazine, benzothiazole and quinoline derivatives

K. Das, A. Mondal, D.Srimani*

Selected in themed collection: 20th Anniversary of the CRSI: Celebrating Indian Chemistry in ChemComm

chem comm toc.jpg

18 J. Org. Chem., 2018, 83, 9553-9560

Selective Synthesis of 2-Substituted and 1,2-Disubstituted Benzimidazoles Directly from Aromatic Diamines and Alcohols Catalyzed by Molecularly Defined Nonphosphine Manganese(I) Complex

K. Das, A. Mondal, D.Srimani*

Highlighted in Organic Chemistry Portal

Before 2016

17. Low-Pressure Hydrogenation of Nitriles to Primary Amines Catalyzed by Ruthenium Pincer Complexes. Scope and mechanism.

A Mukherjee, D Srimani, Y Ben-David and D Milstein

ChemCatChem 9 (4), 559-563.

16. Selective Hydrogenation of Nitriles to Primary Amines Catalyzed by a Cobalt Pincer Complex.

A. Mukherjee, D. Srimani, S. Chakraborty, Y. Ben-David and D. Milstein

J. Am. Chem. Soc 2015, 137, 8888-8891

15. Cobalt Catalyzed Hydrogenation of Esters to Alcohols. Unexpected Reactivity Trend Indicates Ester Enolate Intermediacy.

D. Srimani, A. Mukherjee, A.G. F. Goldberg, G. Leitus, Y. Diskin-Posner, L. J. W. Shimon,Y. Ben-David and D. Milstein

Angew.Chem. Int.Ed. 2015, 54,12357 –12360.

14. Direct Synthesis of Secondary Amines from Alcohols and Ammonia Catalyzed by a Ruthenium Pincer Complex.

E. BalaramanD. Srimani, Y. Diskin-Posner and D. Milstein,

Catal. Lett. 2015 145, 139–144.

13. Direct Catalytic Olefination of Alcohols with Sulfones"[Hot Article].

D. Srimani, G. Leitus, Y. Ben-David and D. Milstein

Angew. Chem. Int. Ed. 2014, 53, 11092 –11095.

12. Iron-Pincer Catalyzed Environmentally Benign, E-selective Semi-hydrogenation of Alkynes.

D. Srimani, Y. Diskin-Posner, Y. Ben-David and D. Milstein

Angew. Chem. Int. Ed. 2013, 52, 14131 –14134.

11. Formation of Tertiary Amides and H2 by Dehydrogenative coupling of Primary Alcohols with Secondary Amines Catalyzed by Ruthenium Bipyridine-Based Pincer Complexes.

D. Srimani, E. Balaraman, P. Hu, Y. Ben-David and D. Milstein

Adv. Synth. Catal. 2013, 355, 2525 – 2530.

10. Direct Synthesis of Pyridines and Quinolines by Coupling of γ-Amino-alcohols with Secondary Alcohols Liberating H2 Catalyzed by Ruthenium Pincer Complexes.

D. Srimani, Y. Ben-David and D. Milstein

Chem. Commun., 2013, 49, 6632-6634.

9. Direct Synthesis of Pyrroles by Dehydrogenative Coupling of β‐Aminoalcohols with Secondary Alcohols Catalyzed by Ruthenium Pincer Complexes.

D. Srimani, Y. Ben-David and D. Milstein

Angew. Chem. Int. Ed. 2013, 52, 4012 –4015.

8.. Catalytic coupling of nitriles with amines to selectively form imines under mild hydrogen pressure.

D. Srimani, M. Feller, Y. Ben-David and D. Milstein

Chem. Commun., 2012, 48, 11853–11855.

7.. Ruthenium pincer-catalyzed cross-dehydrogenative coupling of primary alcohols with secondary alcohols underneutral conditions"

D. Srimani, E. Balaraman, B. Gnanaprakasam, Y. Ben-David and D. Milstein

Adv. Synth. Catal. 2012, 354, 2403 – 2406.

6. Palladium Nanoparticle Catalysis: Borylation of Aryl and Benzyl Halides and One-pot Biaryl Synthesis via Sequential Borylation-Suzuki-Miyaura Coupling.

A. Bej, D. Srimani, and A. Sarkar,

Green Chem., 2012, 14, 661–667.

5. Palladium Nanoparticle Catalyzed Hiyama Coupling Reaction of Benzyl Halides.

D. Srimani, A. Bej and A. Sarkar

J. Org. Chem. 2010, 75, 4296–4299.

4. New Functionalized Mesoporous Matrix Supported Pd(II)-Schiff Base Complex: An Efficient Catalyst for the Suzuki-Miyaura Coupling Reaction.

K. Dhara, K. Sarkar, D. Srimani, S. K. Saha, P. Chattopadhyay and A. Bhaumik

Dalton Trans., 2010, 39, 6395-6402.

3. Size controlled synthesis of Pd nanoparticles in water and their catalytic application in C-C coupling reactions.

S. Sawoo, D. Srimani, P. Dutta, R. Lahiri and A. Sarkar

Tetrahedron 2009, 65, 4367–4374.

2. Benzaldimines as ligands for palladium in Suzuki-Miyaura reactions.

D. Srimani and A. Sarkar,

Tetrahedron Letters 2008,49, 6304-6307.

1. Convenient Synthesis of Palladium Nanoparticles and Catalysis of Hiyama Coupling Reaction in Water.

D. Srimani, S. Sawoo and A. Sarkar

Org. Lett. 2007, 9, 3639-3642.

bottom of page