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Journal Article
D. Singh, Lakshmi, D., Meena, C. L., Krishna, G. Rama, and Sanjayan, G. J., Carbamate-Protected (BOC and O-NB) 2-Aminopyrimidinedione-based janus G-C nucleobase motifs as building blocks for supramolecular assembly and smart polymers, Journal of organic chemistry , vol. 88, no. 21, pp. 14953-14959, 2023.
R. Jannapu Reddy, Shankar, A., Kumar, J. Jagadesh, Sharadha, N., and Krishna, G. Rama, Diethyl phosphite-mediated switchable synthesis of bis(imidazoheterocycles) derived disulfanes and sulfanes using imidazoheterocycles and octasulfur, New Journal of Chemistry, vol. 46, no. 10, pp. 4784-4791, 2022.
A. K. Nakate, Kataria, P., Sambherao, P. I., Krishna, G. Rama, and Kontham, R., Divergent access to polycyclic spiro- and fused-N,O-ketals through Bi(OTf)3-catalyzed [4+2]-annulation of cyclic N-sulfonyl ketimines and alkynols, Chemical Communications, vol. 60, no. 9, pp. 1144-1147, 2024.
B. Sai Allaka, Basavoju, S., and Krishna, G. Rama, Green catalyst Fe(OTs)(3)/SiO2 for the synthesis of 4-Pyrrolo-12-oxoquinazolines, ChemistrySelect, vol. 5, no. 46, pp. 14721-14728, 2020.
R. Jannapu Reddy, Waheed, M., Kumari, A. Haritha, and Krishna, G. Rama, Interrupted CuAAC-thiolation for the construction of 1,2,3-triazole-fused eight-membered heterocycles from O-/N-propargyl derived benzyl thiosulfonates with organic azides, Advanced Synthesis & Catalysis, vol. 364, no. 2, pp. 319-325, 2022.
R. Jannapu Reddy, Kumar, J. Jagadesh, and Krishna, G. Rama, K3PO4-promoted cycloannulation of (E)-beta-Iodovinyl Sulfones with ortho-Hydroxy-chalcones/cinnamates for the synthesis of 2,3,4-trisubstituted 4h-benzopyran derivatives, Advanced Synthesis & Catalysis, vol. 364, no. 23, pp. 4080-4087, 2022.
D. R. Shinde, Krishna, G. Rama, and Marelli, U. Kiran, Metal-free one-pot domino synthesis of oxazolidinethione derivatives of quaternary amino acids from α-amino esters and aldehydes using CS2, Journal of Organic Chemistry, vol. 89, no. 10, pp. 7109-7114, 2024.
A. Haritha Kumari, Kumar, J. Jagadesh, Krishna, G. Rama, and Reddy, R. Jannapu, Nickel-catalyzed difunctionalization of alkynyl bromides with thiosulfonates and N-arylthio succinimides: a convenient synthesis of 1,2-thiosulfonylethenes and 1,1-dithioethenes, Synthesis-Stuttgart, 2021.
R. Kumar Bandaru, Giri, L., Krishna, G. Rama, and Dandela, R., Novel molecular adducts of an anti-cancer drug vandetanib with enhanced solubility, Crystengcomm, vol. 26, no. 3, pp. 248-260, 2024.
V. Narasayya Saladi, Kammari, B. Raju, Mandad, P. Reddy, Krishna, G. Rama, Sajja, E., Thirumali, R. S., Marutapilli, A., and Mathad, V. T., Novel pharmaceutical cocrystal of apalutamide, a nonsteroidal antiandrogen drug: synthesis, crystal structure, dissolution, stress, and excipient compatibility, Crystal Growth & Design, vol. 22, no. 2, pp. 1130-1142, 2022.
G. Masilamani, Krishna, G. Rama, Debnath, S., and Bedi, A., Origin of optoelectronic contradictions in 3,4-cycloalkyl[c]-chalcogenophenes: a computational study, Polymers, vol. 15, no. 21, p. 4240, 2023.
R. Jannapu Reddy, Kumar, J. Jagadesh, Kumari, A. Haritha, and Krishna, G. Rama, Pd-catalyzed annulation of beta-iodovinyl sulfones with 2-halophenols: a general route for the synthesis of 3-sulfonyl benzofuran derivatives, Advanced Synthesis & Catalysis, vol. 362, no. 6, pp. 1317-1322, 2020.
R. Jannapu Reddy, Sharadha, N., and Krishna, G. Rama, Pd(II)-catalyzed tandem cycloannulative-alkenylation of o-alkynyl-phenols/anilines with (E)-β-Iodovinyl sulfones: a direct strategy to construct 3-(Vinyl sulfonyl)benzoheterole derivatives, Journal of Organic Chemistry, vol. 88, no. 13, pp. 8889-8903, 2023.
R. Jannapu Reddy, Waheed, M., and Krishna, G. Rama, Phenylboronic acid-catalyzed tandem construction of S-S and C-S bonds: a new method for the synthesis of benzyl disulfanylsulfone derivatives from S-benzyl thiosulfonates, Organic & Biomolecular Chemistry, vol. 18, no. 17, pp. 3243-3248, 2020.
P. Kumar, Rai, A., Kumar, M., Krishna, G. Rama, and Das, U., Radical cascade cyclization of unactivated alkene-tethered indoles with aryldiazonium salt and sodium metabisulfite to access Azo- and Sulfonylated-2,3-Dihyro-1H-pyrrolo[1,2-a]indoles, Journal of Organic Chemistry, vol. 88, no. 13, pp. 9123-9129, 2023.
Y. Mankad, Thorat, S. S., Das, P., Krishna, G. Rama, Kontham, R., and D. Reddy, S., Ready access to benzannulated [5,5]-oxaspirolactones using Au(III)-catalyzed cascade cyclizations, Journal of Organic Chemistry, vol. 87, no. 5, pp. 3025-3041, 2022.
S. S. Thorat, Shimpi, S. P., Sambherao, P. I., Krishna, G. Rama, and Kontham, R., Regioselective synthesis of benzannulated [5,6]-oxaspirolactones via Cu(II)-catalyzed cycloisomerization of 2-(5-Hydroxyalkynyl)benzoates, Journal of Organic Chemistry , vol. 88, no. 24, pp. 16915-16933, 2023.
R. Devarapalli, Kadambi, S. Bhagwan, Chen, C. - T., Krishna, G. Rama, Kammari, B. Raju, Buehler, M. J., Ramamurty, U., and C. Reddy, M., Remarkably distinct mechanical flexibility in three structurally similar semiconducting organic crystals studied by nanoindentation and molecular dynamics, Chemistry of Materials, vol. 31, no. 4, pp. 1391-1402, 2019.
R. Jannapu Reddy, Kumari, A. Haritha, Sharadha, N., and Krishna, G. Rama, Solvent-driven mono- and bis-sulfenylation of (E)-beta-iodovinyl sulfones with thiols for flexible synthesis of 1,2-thiosulfonylalkenes and 1,2-dithioalkenes, Journal of Organic Chemistry, vol. 87, no. 6, pp. 3934-3951, 2022.
S. S. Thorat, Krishna, G. Rama, and Kontham, R., Stereoselective total synthesis of (+/-)-pleurospiroketals A and B, Journal of Organic Chemistry, vol. 86, no. 19, pp. 13572-13582, 2021.
S. B. Kale, Kumar, M., Shinde, D. R., Krishna, G. Rama, and Das, U., Synthesis of N-functionalized 2,3-disubstituted benzofurans/naphthofurans from para-quinone methides and isocyanides via the [4+1] annulation pathway, Organic Chemistry Frontiers, vol. 10, no. 15, pp. 3746-3751, 2023.
M. Dandawate, Choudhury, R., Krishna, G. Rama, and D. Reddy, S., Total synthesis and absolute configuration determination of Ktedonoketone, a benzenoid metabolite from Thermophilic bacterium, Tetrahedron Letters, vol. 61, no. 47, p. 152526, 2020.
M. Dandawate, Choudhury, R., Krishna, G. Rama, and D. Reddy, S., Total synthesis and absolute configuration determination of the α-glycosidase inhibitor (3S,4R)-6-Acetyl-3-hydroxy-2,2-dimethylchroman-4-yl (Z)-2-Methylbut-2-enoate from Ageratina grandifolia, Journal of Natural Products, vol. 86, no. 7, pp. 1878-1883, 2023.
S. S. Patil, Jachak, G. R., Krishna, G. Rama, Argade, N. P., and D. Reddy, S., Total synthesis of 12, 13-dibenzyl-banistenoside B and analogs, European Journal of Organic Chemistry, vol. 2022, no. 19, p. e202200222, 2022.
D. Chowdhury, Goswami, S., Krishna, G. Rama, and Mukherjee, A., Transfer semi-hydrogenation of terminal alkynes with a well-defined iron complex, Dalton Transaction, vol. 53, no. 8, pp. 3484-3489, 2024.
P. R. Athawale, Zade, V. M., Krishna, G. Rama, and D. Reddy, S., Tuning of alpha-silyl carbocation reactivity into enone transposition: application to the synthesis of peribysin D, E-volkendousin, and E-guggulsterone, Organic Letters, vol. 23, no. 17, pp. 6642-6647, 2021.
M. Kanchrana, Allaka, B. Sai, Krishna, G. Rama, and Basavoju, S., Ultrasound assisted synthesis of spirooxindolo-1,2,4-oxadiazoles via [3+2] cycloaddition reaction and their anti-cancer activity, ARKIVOC, pp. S1-S46, 2023.
M. Kanchrana, Allaka, B. Sai, Krishna, G. Rama, and Basavoju, S., Ultrasound assisted synthesis of spirooxindolo-1,2,4-oxadiazoles via [3+2] cycloaddition reaction and their anti-cancer activity, Arkivoc, p. Special Issue, 2023.