Metal-Free Dehydrogenation-Upcycling Cascade for the Selective Conversion of Waste Polyethylene to Butene
Published by
Patent
Summary
Patent for metal-free conversion of waste polyethylene to butene (CSIR) 2026-INV-0002.
Dr. Kishor Vilas Khopade
Research Scientist | Catalysis & Sustainable Polymer Chemistry
Pune, IN.About
Highly skilled and innovative researcher with expertise in catalysis, organometallic chemistry, polymer synthesis, and plastic recycling. Driven to contribute to organizations emphasizing fundamental research, sustainable innovations, and application-driven solutions to address global challenges. Proven track record in developing novel synthetic methodologies, publishing high-impact research, and contributing to patent-pending technologies.
Work
CSIR-National Chemical Laboratory
|Research Scholar (POMCAT Group)
Pune, Maharashtra, India
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Summary
Led advanced research in catalysis, organic synthesis, and polymer depolymerization, focusing on sustainable solutions for plastic waste and contributing to significant intellectual property.
Highlights
Pioneered research in the depolymerization of waste polyethylene via sequential dehydrogenation and metathesis, successfully producing linear alkenes and functional compounds.
Advanced sustainable chemical recycling processes for polyolefins, contributing to circular economy initiatives and resource recovery.
Authored and co-authored multiple research articles (13+ publications) and contributed to 5 patent filings, significantly expanding the intellectual property in catalysis and polymer depolymerization.
Conducted comprehensive thesis research on metal-catalyzed hydrogenation, dehydrogenation, and depolymerization, demonstrating expertise in complex reaction mechanisms.
CSIR-National Chemical Laboratory
|Project Associate (POMCAT Group)
Pune, Maharashtra, India
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Summary
Developed innovative asymmetric hydrogenation strategies and novel ligand designs with direct applications in pharmaceutical synthesis.
Highlights
Developed an asymmetric hydrogenation strategy utilizing chiral transition metal catalysts, enabling efficient synthesis for pharmaceutical applications.
Designed and synthesized novel chiral phosphorus ligands, achieving highly enantioselective hydrogenation outcomes.
Contributed to the development of advanced synthetic methodologies for high-value chemical transformations.
Synapse Lab Pvt. Ltd
|Research Associate
Pune, Maharashtra, India
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Summary
Specialized in developing and validating methods for Active Pharmaceutical Ingredient (API) drug synthesis and operating advanced analytical instrumentation.
Highlights
Developed and rigorously validated methods for API drug synthesis, ensuring high quality and efficiency in pharmaceutical development.
Operated and maintained advanced analytical equipment, including LC-MS/MS (API3000, API3200), SPE, and nitrogen evaporators, ensuring accurate data collection.
Gained proficiency in various extraction techniques, including Liquid-Liquid Extraction (LLE), Protein Precipitation (PPT), and Solid Phase Extraction (SPE).
CSIR-National Chemical Laboratory
|Project Assistant (SBM Group)
Pune, Maharashtra, India
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Summary
Contributed to large-scale organic synthesis for industrial clients and supported novel synthetic methodology development within a research group.
Highlights
Executed large-scale synthesis and ensured reliable supply of Folic acid and its bioactive impurities for industrial clients, meeting production demands.
Completed total synthesis of Harmicine and its analogues to support Structure-Activity Relationship (SAR) studies, advancing drug discovery efforts.
Synthesized Aryne precursors to facilitate novel synthetic methodology development, expanding the research group's capabilities.
Education
CSIR-National Chemical Laboratory
Pune, Maharashtra, India
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Ph.D.
Chemistry
Courses
Catalysis
Organic Synthesis
Polymer Depolymerization
Modern College of Arts, Science and Commerce
Pune, Maharashtra, India
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M.Sc.
Organic Chemistry
Grade: 1st Class
Dr. Arvind B. Telang College of Arts, Science and Commerce
Pune, Maharashtra, India
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B.Sc.
Chemistry
Grade: 1st Class with Distinction
Institute for Studies in Technology and Engineering
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Diploma
Computer Engineering
Publications
Waste polyethylene to long-chain unsaturated esters and alcohols via alkene cross-metathesis
Published by
Journal of Macromolecular Science, Part A
Summary
Study on converting waste polyethylene into valuable compounds.
Portal Substituent Modulations in Chiral Imido-Pd(II) Cages for the Enhanced Separation of Styrene Oxide Enantiomers
Published by
Inorg. Chem.
Summary
Research on enhancing enantiomer separation using Pd(II) cages.
Ruthenium-catalyzed deconstruction of polyolefins: A strategy to up-cycle waste polyethylene to value-added alkene
Published by
Angew. Chem. Int. Ed.
Summary
Innovative strategy for upcycling waste polyethylene.
Atom transfer radical depolymerization of polyethylene to ethylene
Published by
Manuscript communicated
Summary
Exploration of radical depolymerization for polyethylene.
Solvent and additive free iron-catalysed alkene isomerisation and tandem functionalisation
Published by
Manuscript under revision
Summary
Iron-catalyzed alkene reactions without solvents or additives.
Metal-free dehydrogenation of polyethylene waste and its upcycling into value-added products
Published by
Manuscript communicated
Summary
Research on metal-free polyethylene dehydrogenation.
Depolymerization and repolymerization of polyethylene-like polymers
Published by
Manuscript communicated
Summary
Study on the lifecycle of polyethylene-like polymers.
Depolymerization of waste polyethylene to linear alkenes via sequential dehydrogenation and metathesis
Published by
Green Chem.
Summary
Detailed study on polyethylene depolymerization for linear alkenes.
A hybrid silylene-Pd catalyst: efficient C-N cross-coupling of sterically bulky amines and chiral amines
Published by
Chem. Commun.
Summary
Development of a novel hybrid catalyst for C-N cross-coupling.
Metal catalysed depolymerization and upcycling of polyolefins to value-added chemicals
Published by
Patent
Summary
Patent for metal-catalyzed depolymerization of polyolefins (CSIR no-2023-NF-0065; India application no. 202311029393).
Metal-catalyzed plastic depolymerization
Published by
Cell Reports Physical Science
Summary
Overview of metal-catalyzed plastic depolymerization techniques.
Upcycling of halogenated polymers to obtain value-added products
Published by
Patent
Summary
Patent for upcycling halogenated polymers (CSIR) 2023-INV-0068.
Ruthenium catalyzed depolymerization and upcycling
Published by
Patent
Summary
Patent for ruthenium-catalyzed depolymerization and upcycling (CSIR) 2023-INV-0069.
Controlled di-lithiation enabled synthesis of phosphine-sulfonamide ligands and implications in ethylene oligomerization
Published by
Dalton Trans.
Summary
Research on phosphine-sulfonamide ligands and their use in ethylene oligomerization.
Highly enantioselective synthesis of sitagliptin
Published by
Asian J. Org. Chem.
Summary
Achieving high enantioselectivity in sitagliptin synthesis.
Cover Feature: Highly Enantioselective Synthesis of Sitagliptin
Published by
Asian J. Org. Chem.
Summary
Cover feature highlighting highly enantioselective sitagliptin synthesis.
Synthesis of sitagliptin via rhodium-catalyzed asymmetric hydrogenation and a process thereof
Published by
Patent
Summary
Patent for rhodium-catalyzed sitagliptin synthesis (India, US, World applications).
Languages
English
Skills
Analytical Techniques
NMR, HPLC, GC-MS, LC-MS, IR, DSC, GPC, XRD, PSA, API3000, API3200.
Reaction Chemistry
Catalysis (homogeneous and heterogeneous), Organic Synthesis, Asymmetric Synthesis, Ligand Design, Organometallic Chemistry, High-Pressure Hydrogenations, Air- and Moisture-Sensitive Reactions, Glove Box Techniques, Schlenk Techniques, Cannula Techniques, Reaction Mechanism Studies, Process Development.
Polymer Science
Polymer Depolymerization (Chemical), Plastic Recycling, Polymer Synthesis, Polyolefin Upcycling.
Green Chemistry & Sustainability
Sustainable Green Chemistry Practices, Sustainable Innovations, Chemical Recycling.
Laboratory Management
Laboratory Techniques, Safety Protocols, Safety and Cleaning In-charge, Equipment Operation.
Research & Development
Fundamental Research, Application-Driven Solutions, Problem-Solving, Method Development, Intellectual Property Development.
Mentorship & Leadership
Supervising Project Students, Mentoring, Comprehensive Training, Project Management.
Communication
Strong Oral Communication, Strong Written Communication, Scientific Report Writing, Oral Presentations, Poster Presentations.
Extraction Techniques
Liquid-Liquid Extraction (LLE), Protein Precipitation (PPT), Solid Phase Extraction (SPE).
References
Dr. Samir H. Chikkali
Chief Scientist and Professor, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory. Contact information available upon request.
Dr. Santosh B. Mhaske
Sen. Principal Scientist and Professor, Division of Organic Chemistry, CSIR-National Chemical Laboratory. Contact information available upon request.
Dr. Nagaraju Barsu
Senior Scientist, Organic Chemistry Division, CSIR-National Chemical Laboratory. Contact information available upon request.