Sudipta Raha Roy




Sudipta Raha Roy



Assistant Professor


Born: Burdwan, West Bengal
Ph.D.: NIPER-Mohali (Prof. Asit K. Chakraborti)
Research Associate: IISER-Kolkata (Prof. Swadhin K. Mandal)
Postdoctoral Fellow: Schulich Faculty of Chemistry, Technion, Israel (Prof. Ilan Marek)
Postdoctoral Fellow: ICIQ, Tarragona, Spain (Prof. Paolo Melchiorre)
Assistant Professor: Indian Institute of Technology Delhi, Nov 2018-Present
Awards and Accolades: Marie Curie Individual Fellowship in 2018; Fulbright Nehru Postdoctoral Fellowship in 2014 (Declined); PBC Postdoctoral Fellowship in 2014; Research Associate Grant from CSIR in 2013; Eli Lilly and Company Asia Outstanding Thesis Awards in 2012 (1st Prize); International Travel Grant from DST in 2010; NET-CSIR in 2006.

Group Webpage



Research Interests


We are fascinated to develop new reactions for editing organic molecules. Therefore we are interested to functionalize the relatively inert bonds in a molecule. This encompasses the discovery of new concepts in catalysis so that we can reduce the environmental impact of chemical transformation. Indeed, the development of such catalytic methods for the activation of inert bonds in an organic molecule would be highly desirable to synthesize smart molecules. We are also fascinated to study the reaction mechanism as a strategy for (re)designing the catalyst, controlling reaction selectivity and increasing efficiency of the catalytic process.


research pic

    Selected Publications


  1. L. Buzzetti, A. Prieto, S. Raha Roy and P. Melchiorre, Radical-based C-C Bond-Forming Processes Enabled by the Photoexcitation of 4-Alkyl-1,4-dihydropyridines. Angew. Chem. Int. Ed., 2017, 56, 15039-15043.
  2. S. Raha Roy, H. Eijsberg, J. Bruffaerts and I. Marek, Zirconocene Catalyzed Diastereoselective Carbometalation of Cyclobutenes. Chem. Sci., 2017, 8, 334-339. (Highlighted on Synfacts)
  3. S. Raha Roy, D. Didier, A. Kleiner and I. Marek, Diastereodivergent combined carbometalation-Zinc homologation- C-C fragmentation reactions for an efficient construction of allylic quaternary carbon stereocenters. Chem. Sci., 2016, 7, 5989-5994.
  4. S. Raha Roy, A. Nijamudheen, A. Pariyar, A. Ghosh, P. K. Vardhanapu, P. K. Mandal, A. Datta, and S. K. Mandal, Phenalenyl in a Different Role: Catalytic Activation through the Nonbonding Molecular Orbital. ACS Catal., 2014, 4, 4307-4319. (Selected in the Virtual Issue Posts on Organocatalysis)
  5. A. K. Chakraborti and S. Raha Roy, On Catalysis by Ionic Liquids. J. Am. Chem. Soc., 2009, 131, 6902-6903. (Highlighted on NPG Asia Materials)



      Group Members


    Ph.D. Students
  • Neha Dagar (CSIR JRF)
  • Swati Singh (CSIR JRF)