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Dr. Shashank Singh
Dr. Shashank Singh
Asst. Professor (Grade II) Chemistry
Office Address:
ED-205, Department of Education, National Institute of Technology Calicut NIT Campus, Kozhikode – 673601 Kerala, India
B.Sc. – Banaras Hindu University (2016)
M.Sc. – Banaras Hindu University (2018)- Advisor Prof. Arvind Misra
Ph.D. – Indian Institute of Technology, Delhi (2024) Advisor: Prof. Ravi P. Singh
Educational Qualifications
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B.Sc. – Banaras Hindu University (2016)
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M.Sc. – Banaras Hindu University (2018)- Advisor Prof. Arvind Misra
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Ph.D. – Indian Institute of Technology, Delhi (2024) Advisor: Prof. Ravi P. Singh
Journals
1: Stereoselective Synthesis of Spiro-α-methylene-γ-lactams via Chiral Quaternary 3-Aminooxindole Adducts Accessed by Zn-Mediated Allylation of Sulfinyl Ketimines V. U. Bhaskara Rao†, Shashank Singh†, Krishna N. Tripathi , Ravi P. Singh Synthesis 2020; 52(17): 2551-2562 († Equal. Contribution)
2: Redox activated amines in organophotoinduced alkylation of coumarins Shashank Singh, Krishna N Tripathi and Ravi P. Singh* Org. Biomol. Chem., 2022,20, 5716-5720
3: Visible-Light-Driven site-selective Alkylation of Benzo Core of Coumarins Krishna N. Tripathi†, Shashank Singh†, Naved Akhtar, Kuntal Manna*, and Ravi P. Singh* Chem Commun. , 2022, 58, 9674-9677. († Equal Contribution)
4: Visible light induced alkylation of 2-iminochromene Shashank Singh and Ravi P. Singh* Org. Biomol. Chem., 2022,20, 7891-7895.
5: Visible-light Induced Metal-free Selenation of Tryptamines/3-alkyl indoles, Shashank Singh, Kalyan S Naskar, Arindam Kundu, Ravi P. Singh* Synthesis. 2023, 55(21), 3685-3692.
6: Photoinduced metal-free trifluoro/perfluoroalkylation of heteroarenes Shashank Singh and Ravi P. Singh* Org. Biomol. Chem., 2024,22, 4072-4076.
7: Photoinduced Stereoselective Giese Addition on Coumarins Shashank Singh and Ravi P. Singh* Synthesis. 2025, 57, 481-487.
8: Polar-effect-directed control in site-selectivity of radical substitution enables C-H perfluoroalkylation of coumarins Shashank Singh and Ravi P. Singh* J. Org. Chem. 2024, 89, 14785–14801.
9: Photoinduced stereoselective reactions using pyridinium salts as radical precursors Shashank Singh†, Diksha Gambhir† and Ravi P. Singh* Chem. Commun. 2025, 61, 3436-3446.
10: A radical approach towards polarity-reversed para-substitution of electron-deficient arenes Shashank Singh, Arindam Kundu, Claire Empel, René Michael Koenigs* and Ravi P. Singh* Chem. Commun. 2025, 61, 3888-3891.
11: Visible Light Mediated Enantioselective Alkylation Using Deaminative Approach-Access to Unnatural Amino Acids and Peptides, Shashank Singh, Altaf Ansari, Shreya Tewari, Diksha Gambhir, Ravi P Singh , ASAP, Organic Letter, 2026, doi : 10.1021/acs.orglett.6c02280
Professional Experience
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Iowa State University, Ames, USA (2024–2025) Advisor: Prof. Yan Zhao
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University of Bonn, Bonn Germany (2025–2026) Advisor: Prof. Maja Köhn
Research Contributions
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Research Focus: Organic Chemistry, Photochemistry, and Chemical Biology
1: Trifluoro/perfluoroalkylated aryl/alkylidene malononitriles and visible light mediated process for synthesis" ; IOPA No- 202311048076 (Indian Patent)
2: Coumarin compound and method of preparation" therof; IOPA No- 202211041300 (Indian Patent)