Organic Chemistry / Synthesis

11

Design and development of new synthetic methodologies and novel catalysts, Asymmetric synthesis, Green synthesis

International Publications

2024
1. Udayasri, A.; Ramakrishna, D. S.; Behera, P.; Lakshmi Praveen, P.; Brahmeswararao, M. V. N. Synthesis of Ribociclib Using Phase Transfer Catalysis and Ecofriendly Reducing Agent: Potential Method for Industrial Practice. Journal of Molecular and Engineering Materials, 2024. https://doi.org/10.1142/s2251237324400112. (SCI & SCOPUS)
2. Veligeti, R.; Anireddy, J. S.; Madhu, R. B.; Bendi, A.; Praveen, P. L.; Jose, T. J.; Ramakrishna, D. S. Green Synthesis of Novel Acridone Fused Tetracyclic Analogues via Microwave-Promoted Fast, Solvent-Free Benzylation and Their DFT Studies. Journal of Molecular and Engineering Materials, 2024. https://doi.org/10.1142/s2251237324400082. (SCI & SCOPUS)
3. Das, P.; Jose, T. J.; Sharma, A. K.; Ramakrishna, D. S.; Praveen, P. L. Ultraviolet Response Data of Liquid Crystals for Bioprocess Monitoring: A Methodical Exploration. Journal of Molecular Structure, 2024, 1305, 137805. https://doi.org/10.1016/j.molstruc.2024.137805. (SCI & SCOPUS)
4. Suguna, S.; Subbareddy, Y.; Jose, T. J.; Chand, N. R.; Ramakrishna, D. S.; Praveen, P. L. Synthesis, Growth, and Optical Applications of N, N?-Bis (2-Aminophenyl) Ethane-1,2-Diammonium Picrate: An Organic Crystal. Journal of Molecular Structure, 2024, 1300, 137295. https://doi.org/10.1016/j.molstruc.2023.137295. (SCI & SCOPUS)
5. Singh, S.; Kaushik, A.; Bendi, A.; Chetal, A.; Ramakrishna, D. S.; Praveen, P. L. Constructed Wetlands as Bioeconomic Solutions: Rhizofiltration with Macrophytes for Heavy Metal Removal. Emergent Materials, 2024. https://doi.org/10.1007/s42247-024-00675-4. (SCI & SCOPUS)
6. Behera, P.; Jose, T. J.; Ramakrishna, D. S.; Praveen, P. L. Supramolecular Complex Catalyzed Green Synthesis of 9-(2-Ethylhexyl) Carbazole: Structural, Optical and DFT Investigations. Journal of Molecular Structure, 2024, 1308, 138089. https://doi.org/10.1016/j.molstruc.2024.138089. (SCI & SCOPUS)
2023
7. Shekunti, R. K.; Devarakonda, A. P.; Kothakapu, S. R.; Ramakrishna, D. S. Efficient Green Synthesis of a Potential Novel Nosylation Reagent and Its DFT Study. Phosphorus, Sulfur, and Silicon and the Related Elements, 2023, 198, 549–553. https://doi.org/10.1080/10426507.2023.2191960. (SCI & SCOPUS)
8. Veligeti, R.; Anireddy, J. S.; Madhu, R. B.; Bendi, A.; Praveen, P. L.; Ramakrishna, D. S. Solvent-Free Synthesis of Acridone Based Dihydropyrazine Derivatives Using CuFe2O4 Nanoparticles as Heterogeneous Catalyst: Molecular Docking and In-Vitro Studies as Anticancer Agents. Journal of Inorganic and Organometallic Polymers and Materials, 2023, 33, 4039–4051. https://doi.org/10.1007/s10904-023-02638-4. (SCI & SCOPUS)
9. Behera, P.; Ramakrishna, D. S.; Chandrasekhar, M. M.; Kothakapu, S. R. A Concise Review on Recent Advances in Catalytic Asymmetric Hydrogenation. Chirality, 2023, 35, 477–497. https://doi.org/10.1002/chir.23559. (SCIE & SCOPUS)
10. Behera P.; Ramakrishna, D. S.; Mohapatra, S.; Lakshmi Praveen, P.; Kothakapu, S.R. Indole Substrates to Carbazole Targets: An Update in the Discovery of an Ideal Synthetic Methodology. Journal of Molecular and Engineering Materials,2023 https://doi.org/10.1142/S225123732440001 (SCIE)
2022
11. Ramakrishna, D. S. Preparation of Novel Chiral ?-Diazocarbonyl Compounds Using Regitz’s Methodology. Organic Preparations and Procedures International, 2022, 54, 178–183. https://doi.org/10.1080/00304948.2021.2010466. (SCI & SCOPUS)
12. Udayasri, A.; Chandrasekhar, M. M.; Brahmeswararao, M. V. N.; Varanasi, G.; Praveen, P. L.; Ramakrishna, D. S. Ecofriendly Synthesis of Ribociclib Intermediate Using Regioselective Hydrodechlorination and DMAP Catalyzed Ester Hydrolysis. Topics in Catalysis, 2022, 65, 1669–1674. https://doi.org/10.1007/s11244-022-01602-9. (SCI & SCOPUS)
13. Veligeti, R.; Ramakrishna, D. S.; Madhu, R. B.; Anireddy, J. S. Synthesis of Fluoro and Trifluoromethyl Substituents Containing Novel Tetracyclic N-Benzylated Benzopiperazine Fused Acridone Regioisomers Using a Greener Solvent 2-MeTHF and Their DFT Studies. Journal of Fluorine Chemistry, 2022, 257–258, 109989. https://doi.org/10.1016/j.jfluchem.2022.109989. (SCI & SCOPUS)
14. Veligeti, R.; Anireddy, J. S.; Madhu, R. B.; Ramakrishna, D. S. One Pot, Three Component Synthesis of Fluoro and Trifluoromethyl Substituted Unsymmetrical Dihydropyrazine Fused Acridine-3-Carboxamide Using Renewable 2-MeTHF Solvent and Their DFT Studies. Journal of Fluorine Chemistry, 2022, 261–262, 110019. https://doi.org/10.1016/j.jfluchem.2022.110019. (SCI & SCOPUS)
15. Udayasri, A.; Chandrasekhar, M., M.; Naga, B., M. V.; Varanasi, G.; Ramakrishna, D. S. Green Chemical Principles Based Regioselective Functionalization of 2,4,6-Trichloropyrimidine-5-Carbaldehyde: Application in the Synthesis of New Pyrimidines and Pyrrolopyrimidine. Journal of the Serbian Chemical Society, 2023, 88, 1–9. https://doi.org/10.2298/jsc210804063u. (SCI & SCOPUS)
16. Venkatanarayana, P.; Kolli, D.; Seelama, N. V.; Ramakrishna, D. S. Synthesis of Molnupiravir (MK-4482, EIDD-2801): A Promising Oral Drug for the Treatment of COVID-19 Starting from Cytidine. Nucleosides, Nucleotides & Nucleic Acids, 2022, 42, 427–435. https://doi.org/10.1080/15257770.2022.2153140. (SCI & SCOPUS)
2021
17. Behera, S.; Behura, R.; Mohanty, P.; Sahoo, M.; Ramakrishna D.S. Study of Interaction Between Bovine Serum Albumin and Dolutegravir Intermediate: Fluorescence and Molecular Docking Analysis. Biointerface Research in Applied Chemistry, 2021, 11, 13102–13110. https://doi.org/10.33263/briac115.1310213110. (SCI & SCOPUS)
18. Ramakrishna, D. S. One Pot Synthesis of Chiral Secondary Alcohols Using Noyori Asymmetric Transfer Hydrogenation and Williamson Monoetherification: Application in the Diastereoselective Syntheses of Cis Cyclopropyl Containing Molecules. Chemical Data Collections, 2021, 33, 100685. https://doi.org/10.1016/j.cdc.2021.100685. (SCI & SCOPUS)
19. Ramakrishna, D. S.; Jose, T. J.; Praveen, P. L. Translational and Rotational Phase Ordering of Symmetric Dimer Mesogens: Molecular Rigidity Effect. Journal of Molecular Structure, 2021, 1236, 130336. https://doi.org/10.1016/j.molstruc.2021.130336. (SCI & SCOPUS)
20. Ramakrishna, D. S Wadsworth Emmons Cyclopropanation Mediated Diastereoselective Syntheses of ?-Epoxy- Trans-Disubstituted Cyclopropane and ?-Hydroxy-Trans-Disubstituted Cyclopropane. Chemical Data Collections, 2021, 32, 100667. https://doi.org/10.1016/j.cdc.2021.100667. (SCI & SCOPUS)
21. Ramakrishna, D. S.; Pradhan, A. A Concise Review on the Stereoselective Synthesis of Chiral ?-Bisamides Using Stereoselective Ugi-Type Reaction. Arkivoc, 2021, 2021, 1–41. https://doi.org/10.24820/ark.5550190.p011.519. (SCI & SCOPUS)
2020
22. Jali, B. R.; Thakur, S. R.; Behura, R.; Behera, S.; Sayala, R. B.; Barick, A. K.; Ramakrishna D.S. Selective Detection of Fluoride and Hydrogen Sulfate Anions by Pyrimidine-Based Fluorescence Chemosensor. Indian Journal of Chemistry -Section A, 2020, 59. https://doi.org/10.56042/ijca.v59i12.29642. (SCI & SCOPUS)
2019
23. Priyadarshini, S.; Guru, P. S.; Ramakrishna, D. S.; Dash, S. Cr(VI) Oxidation of Cholesterol—A Kinetic Study Using N-Cetylpicolinium Dichromates, A Class of Novel Phase Transfer Oxidants. Kinetics and Catalysis, 2019, 60, 147–154. https://doi.org/10.1134/s0023158419020083. (SCI & SCOPUS)
2018
24. Sahu, S.; Sahoo, A. P.; Shubhadarshinee, L.; S, R. D.; Barick, A. K. Effect of Polyaniline?coated Carbon Nanotube and Nanosilver Hybrid Nanoparticles on the Dielectric Properties of Poly(Methyl Methacrylate) Nanocomposites. Polymer Composites, 2018, 39. https://doi.org/10.1002/pc.24877. (SCI & SCOPUS)
2017
25. P. L. Praveen, Ramakrishna. D. S., D. P. Ojha, UV spectral characterization of a smectic-C liquid crystal: Theoretical support to the experiment, Molecular Crystals and Liquid Crystals 643 (2017) 76–82. https://doi.org/10.1080/15421406.2016.1262702
2015
26. P. L. Praveen, D. S. Ramakrishna, Int. J. Adv. Res. J. Sci. Engg. Technol., 2 (2015) 92. Charge Distribution and UV Absorption Spectra of Liquid Crystals with Structural Element [closo-B10H10] 2- : A Theoretical Approach, DOI 10.17148/IARJSET.2015.21217
2010
27. A concise enantioselective total synthesis of (+)-epi-muricatacin, using asymmetric hydrogenation/intramolecular iodoetherification as key stepsG. Kumaraswamy, Duggirala Ramakrishna and Kondapalli SanthakumaraTetrahedron: Asymmetry 21 (2010) 544–548
2008
28. Highly enantioselective carbon–carbon bond formation by Cu-catalyzed asymmetric [2,3]-sigmatropic rearrangement: application to the syntheses of seven-membered oxacycles and six-membered carbocyclesG. Kumaraswamy, K. Sadaiah, Duggirala Subrahmanya Ramakrishna N. Police,a B. Sridhar and J. Bharatam aChem. Commun., 2008, 5324–5326
2006
29. Di-µ-hydroxy-bis(N,N,N',N'-tetramethylenediamine)-copper(II)chloride [Cu(OH).TMEDA]2Cl2: an efficient, practical catalyst for benzylation and allylation of  amidesG. Kumaraswamy,* A. Pitchaiah, G. Ramakrishna, D. S. Ramakrishna and K. Sadaiaha Tetrahedron Lett. 2006, 47, 2013

1. D. S. Ramakrishna, S .R Kothakapu, T. Biswal, Chapter 5. Green Synthesis of Azole Derivatives as Antifungal Agents and Their Biomedical Applications; Book The Future of Green Synthesis Volume 1, Pages 145-165, Publisher Nova Science Publishers (2023) ISBN: 979-8-88697-816-2; https://doi.org/10.52305/YIWU6826
2. P. Behera , S. R. Kothakapu, T. Biswal, D. S. Ramakrishna, Chapter 7. The Exploration of Greener Technologies in the Synthesis of Anti-COVID-19 Drugs; Book, The Future of Green Synthesis Volume 1, Pages 191-213, Publisher Nova Science Publishers (2023), ISBN: 979-8-88697-816-2 Nova Science Publishers, https://doi.org/10.52305/YIWU6826