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Publications from IIT Kharagpur:

32. Rh(III)-Catalyzed Straightforward Synthesis of Highly Substituted 2-Pyridones using Fluorinated Diazomalonate

D. Das, G. Sahoo, A. Biswas and R. Samanta* Chem Asian J 2019, (ASAP)

"Invited Article" for a special issue on "ICOC 2020".

31. Rh(III)-Catalyzed Straightforward Arylation of 8-Methyl/ Formyl Quinolines using Diazo Compounds

B. Ghosh and R. Samanta* Chem. Commun. 2019, 55, 6886-6889.

30. Pd(II)-Catalyzed Direct Sulfonylation of Benzylamines using Sodium Sulfinates

U. Karmakar and R. Samanta* J. Org. Chem 2019, 84, 2850-2861.

29. Rh(III)-Catalyzed Straightforward Synthesis of Benzophenanthroline and Benzophenanthrolinone Derivatives using Anthranils

A. Biswas, S. Sarkar and R. Samanta* Chem. Eur. J. 2019, 25, 3000-3004.

Selected as "hot paper".

28. Direct Pd(II)-Catalyzed Site-Selective C5-Arylation of 2-Pyridone Using Aryl Iodides

S. Maity, D. Das, S. Sarkar and R. Samanta* Org. Lett. 2018, 20, 5167-5171.

27. Rh(III)-Catalyzed Direct C8-Arylation of Quinoline N-Oxides using Diazonaphthalen-2(1H)-ones: A Practical Approach towards 8-azaBINOL

B. Ghosh, A. Biswas, S. Chakraborty and R. Samanta* Chem Asian J 2018, 13, 2388-2392.

"Invited Article" for a special issue on "Homogeneous Catalysis from Young Investigators in Asia".

26. Rhodium(III)-Catalyzed Regioselective Direct C4-Alkylation and C2-Annulation of Indoles: Straightforward Access to Indolopyridone

A. Biswas and R. Samanta* Eur. J. Org. Chem. 2018, 1426-1436.

25. Iridium(III) Catalyzed Regiocontrolled Direct Amidation of Isoquinolones and Pyridones

D. Das and R. Samanta* Adv. Synth & Catal. 2018, 360, 379-384.

24. Regiocontrolled Direct C4 and C2-Methyl Thiolation of Indoles under Rhodium Catalyzed Mild Conditions

S. Maity, U. Karmakar and R. Samanta* Chem. Commun. 2017, 53, 12197-12200.

23. A Mild Rhodium Catalyzed Direct Synthesis of Quinolones from Pyridones: Application in the Detection of Nitroaromatics

A. Biswas, D. Giri, D. Das, A. Dey, S. K. Patra* and R. Samanta* J. Org. Chem. 2017, 82, 10989-10996.

22. Copper Catalyzed Direct, Regioselective Arylamination of N-Oxides: Studies to Access Conjugated π-Systems

A. Biswas, U. Karmakar, S. Nandi and R. Samanta* J. Org. Chem. 2017, 82, 8933-8942.

21. Iridium Catalysed Cascade Synthesis of Oxindoles using Diazo Compound: A Quick Entry to the C7-Functionalized Oxindoles

U. Karmakar, D. Das, and R. Samanta* Eur. J. Org. Chem. 2017, 2780-2788.

20. Rhodium(III)-Catalyzed C6-Selective Arylation of 2-Pyridones and Related Heterocycles Using Quinone Diazides: Syntheses of Hetero-Arylated Phenols

D. Das, P. Poddar, S. Maity, and R. Samanta* J. Org. Chem. 2017, 82, 3612-3621.

19. Copper Catalyzed Regioselective Cascade Alkylation and Cyclocondensation of Quinoline N-Oxides with Diazo esters:  Direct Access to conjugated π-Systems

A. Biswas, U. Karmakar, A. Pal, and R. Samanta* Chem. Eur. J. 2016, 22, 13826-13830.

18. C6-Selective Direct Alkylation of Pyridones with Diazo Compounds under Rh(III)-Catalyzed Mild Conditions

D. Das, A. Biswas, U. Karmakar, S. Chand, and R. Samanta* J. Org. Chem. 2016, 81, 842-848.

Graduate & Postdoctoral Publications:

17. Oxidative Regioselective Amination of Chromones Exposes Potent Inhibitors of Hedgehog Signaling Pathway

R. Samanta, R. Narayan, J. O. Bauer, C. Strohmann, S. Sievers, A.P. Antonchick*

Chem. Commun. 2015, 51, 925-928.

 

16. Rhodium(III)-Catalyzed Direct Regioselective Synthesis of 7-Substituted Indoles

Z. Song, R. Samanta,  A. P. Antonchick*

Org. Lett, 2013, 15, 5662-5665.

 

15. Metal-Free Oxidative Carbon-Heteroatom Bond Formation via C-H Bond Functionalization

R. Samanta, K. Matcha and A. P. Antonchick*

Eur. J. Org. Chem., 2013, 5769-5804. [Invited mini-riview; one of the top 25 most accessed articles. Selected as free-access-review]

 

14. Rhodium(III) Catalyzed Direct Oxidative Cross Coupling at C5 Position of Chromones with Alkenes

R. Samanta, R. Narayan and A. P. Antonchick*

Org Lett., 2012, 14, 6108-6111.

 

13. Organocatalytic, Intermolecular, Oxidative C-H Bond Amination and hydrazination of simple arenes at Ambient Temperature.

R. Samanta, J. O. Bauer, C. Strohmann and A. P. Antonchick*

Org Lett., 2012, 14, 5518-5521.

  • One of the most read articles in 10/2012–11/2012

 

12. Metal-Free Direct Oxidative Intermolecular Multiple C–H Bond Functionalizations at Ambient Temperature Assisted by Cascade Selective Formation of C–C and C–N Bonds

R. Samanta, J. Lategahn and A. P. Antonchick*

Chem Commun 2012, 48, 3194-3196.

 

11. Metal-Free Electrocyclization at Ambient Temperature: Synthesis of 1-Aryl carbazoles.

 R. Samanta, K. Kulikov, C. Strohmann and A. P. Antonchick*

Synthesis 2012, 44, 2325-2332. (Invited Feature Article)

  • One of the 10 most accessed articles in 8/2012.

 

10. Metal Free Oxidative Amination at Ambient Temperature

Rajarshi Samanta and Andrey P. Antonchick*

Synlett 2012, 23, 809-813. (Invited Highlight)

  • One of the 10 most accessed articles in 3/2012–5/2012

 

9. Organocatalytic, Oxidative, Intramolecular C-H Bond Amination and Metal-free Cross-Amination of Unactivated Arenes at Ambient Temperature

A. P. Antonchick*, R. Samanta, K. Kulikov, J. Lategahn.

Angew. Chem. 2011, 123, 8764-8767; Angew. Chem. Int. Ed. 2011, 50, 8605-8608.

  • Selected as “hot paper” by the editors

  • Highlighted in SYNFACTS (2011, 1129).

  • One of the most accessed articles in August, 2011 and one of the most accessed articles in first year after publication.

 

8. Palladium-Catalyzed Double C-H Activation Directed by Sulfoxides in the Synthesis of Dibenzothiophenes.

R. Samanta and A. P. Antonchick*

Angew. Chem. 2011, 123, 5323 – 5326; Angew. Chem. Int. Ed. 2011, 50, 5217 – 5220.

  • Highlighted in SYNFACTS (2011, 836).

 

7. A Stereoselective construction of quaternary chiral centers using Ti(III)-mediated opening of 2,3-epoxy alcohols: studies directed toward the synthesis of penifulvins

Tushar Kanti Chakraborty*, Amit Kumar Chattopadhyay, Rajarshi Samanta, Ravi Sankar Ampapathi.

Tetrahedron Lett. 2010, 51, 4425-4428. [Cited in Organic Chemistry Highlights]

 

6. A radical mediated approach to the formal total synthesis of (+)-Sch 642305.

Tushar Kanti Chakraborty*, Rajarshi Samanta, Pulukuri Kiran Kumar

Tetrahedron 2009, 65, 6925-6931.

 

5. A 1:2 copper (II) – tripeptide complex for DNA binding and cleavage agent at physiological conditions.

Pulimamidi R. Reddy*; Pallerla Manjula; Tushar K.Chakraborty and Rajarshi Samanta.

Chemistry & Biodiver. 2009, 6, 764-773.

 

4. Ti(III)-mediated radical cyclization of β-aminoacrylate containing epoxy alcohol moieties: Synthesis of highly substituted azacycles.

Tushar Kanti Chakraborty*; Rajarshi Samanta; Saumya Roy and Balasubramanian Sridhar

Tetrahedron Lett. 2009, 50, 3306-3310. [Cited in Organic Chemistry Highlights]

 

3. Studies on radical cyclization of 2,3- epoxy alcohols containing a β-(alkoxy)acrylate moiety using Cp2TiCl.

Tushar Kanti Chakraborty*; Rajarshi Samanta; Krishnan Ravi kumar

Tetrahedron Lett.  2007, 48, 6389-6392. [Cited in Organic Chemistry Highlights]

 

2. Radical mediated opening of 2,3- epoxy alcohols using Cp2TiCl : Stereoselective construction of quaternary chiral centers.

Tushar Kanti Chakraborty*; Rajarshi Samanta; Sanjib Das.

J. Org. Chem. 2006, 71, 3321-3324.  [Cited in of Organic Chemistry Highlights].

 

1. Total synthesis of  stevastelin B3.

Tushar Kanti Chakraborty*; Subhash Ghosh; Pasunoori Laxman; Shantanu Dutta; Rajarshi Samanta.

Tetrahedron Lett.  2005, 46, 5447-5450. [Top 25 hottest articles, July-Sep.2005]