Welcome to the DKT Group
Publications from CBMR
28. Synthesis of 4-styrylquinolines via direct oxidative C3-alkenylation of anthranils under Pd(ii) catalysis: A. Awasthi, K. Tiwari, P. Yadav, S. Bhowmick and Dharmendra Kumar Tiwari; Chemical Communications, 2024, Advance Article (https://doi.org/10.1039/D3CC05790A).
27. DMSO as a dual carbon synthon in the one-pot tandem synthesis of N-alkylated quinazolinone from anthranilamides and acetophenones. P. Yadav, S. Yadav, A. Awasthi, M. Phanindrudu, S. Bhowmick, and Dharmendra Kumar Tiwari*, New J. Chem., 2022, 46, 16289-16296
26. Copper-Catalyzed Synthesis of 3-Nitro-Quinolines from Nitro-Olefins and Anthranils: Its Application in the Synthesis of Quindoline; A. Awasthi, P. Yadav, S. Yadav, and Dharmendra Kumar Tiwari,* Advanced Synthesis & Catalysis, 2022, 364, 41 - 46
25. Stereoselective synthesis of (Z)-1,3-bis(α,β-unsaturated carbonyl)-isoindolines from aldehydes and phenacyl azides under metal-free conditions; B. Prasad, M. Phanindrudu, J. B. Nanubolu, A. Kamal, and Dharmendra Kumar Tiwari* Chemical Communications, 2021, 57, 9542 - 9545.
24. DMSO as a Methine Source in TFA-Mediated One-Pot Tandem Regioselective Synthesis of 3-Substituted-1-Aryl-1H-Pyrazolo-[3,4-b]quinolines from Anilines and Pyrazolones. P. Yadav, A. Awasthi, S. Gokulnath and Dharmendra Kumar Tiwari* J. Org. Chem. 2021, 86, 2658–2666.
23. A three-component, general and practical route for diastereoselective synthesis of aza-spirocyclic pyrazolones via a decarboxylative annulation process. A. Awasthi, P. Yadav, and Dharmendra Kumar Tiwari* New Journal of Chemistry, 2021, 45, 2374-2383.
22. α-Amino Acids Mediated C–C Double Bonds Cleavage in Diastereoselective Synthesis of Aza‐Spirocyclic Pyrazolones. A. Awasthi, P. Yadav; V. Kumar; Dharmendra Kumar Tiwari* Advanced Synthesis & Catalysis, 2020, 362, 4378 - 4383.
21. Nano copper-catalyzed synthesis of symmetrical/unsymmetrical sulfones from aryl/alkyl halides and p-toluenesulfonyl-methylisocyanide: TosMIC as a tosyl source. M. Phanindrudu P. Jaya, P. R. Likhar, Dharmendra Kumar Tiwari*, Tetrahedron, 2020, 76, 131263.
20. Transition Metal-Free One-Pot Tandem Synthesis of 3-Ketoisoquinolines from Aldehydes and Phenacyl azides; B. Prasad, M. Phanindrudu, Dharmendra Kumar Tiwari* and A. Kamal; J. Org. Chem. 2019, 84, 12334–12343.
19. Synthesis of 3-keto-quinolines from enaminones, anilines, and DMSO: Transition metal-free one-pot cascade: S. B. Wakade, D. K. Tiwari, M. Phanindrudu, P. Yadav, and Dharmendra Kumar Tiwari* , Tetrahedron, 2019, 75, 4024-4030.
18. A multicomponent reaction for the synthesis of pyrido [1,2-b] isoquinoline derivatives via the [3+2] cycloaddition reaction between alkynes and in situ generated isoquinolinium ylides; S. S. Shinde, S. Laha, Dharmendra K. Tiwari, B. Sridhar and Pravin R. Likhar; Org. Biomol. Chem., 2019, 17, 4121-412.
Publications from DST-INSPIRE Faculty
17. Transition Metal-Free Approach for the Syntheses of 4-Aryl-quinolines from Alkynes and Anilines; M. Phanindrudu, S. B. Wakade, Dipak Kumar Tiwari, Pravin R. Likhar, and Dharmendra Kumar Tiwari*; J. Org. Chem. 2018, 83, 9137–9143.
16. Transition Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One Carbon Homologation/Conjugate addition/Annulation Cascade: S. B. Wakade, D. K. Tiwari, P. S. K. P. Ganesh, M. Phanindrudu, P. Likhar, and Dharmendra Kumar Tiwari*; Organic Letters, 2017; 19, 4948.
15. α,β-Functionalization of Saturated Ketones with Anthranils via Cu-catalyzed Sequential Dehydrogenation/Aza-Michael Addition/Annulation Cascade Reactions in One-Pot: D. K. Tiwari, M. Phanindrudu, J. B. Nanubolu, and Dharmendra Kumar Tiwari*; Chemical Communications, 2017, 53, 5302.
14. Unprecedented Synthesis of 1,2,3-Triazolo-Cinnolinone via Sonogashira Coupling and Intramolecular Cyclization; Avnish Kumar, Dharmendra Kumar Tiwari, Balasubramanian Sridhar, and Pravin R. Likhar; Org. Biomol. Chem., 2018,16, 4840-4848.
13. Magnetically Separable Nano Copper-Catalyzed Unprecedented Stereoselective Synthesis of E-Vinyl Sulfones from Tosylmethyl isocyanide and alkynes: TosMIC as a Source of Sulfonyl group; M. Phanindrudu, D. K. Tiwari, B. Sridhar, P. R. Likhar, and Dharmendra Kumar Tiwari*; Org. Chem. Frontiers 2016; 3, 795 (Selected for Front Cover Image).
12. Magnetically Recoverable Cu0/Fe3O4 Catalyzed One-Pot Tandem Synthesis of Sulfur-Containing Triazoles from Alkynes and Azide: DMSO acts as an alkylating agent. M. Phanindrudu, Dipak Kumar Tiwari, V. K. Aravilli, K. C. Bhardwaj, G. Sabapathi, Pravin R. Likhar, and Dharmendra Kumar Tiwari,* Eur. J. Org. Chem. 2016, 4629.
11. Magnetically Recoverable Cu0/Fe3O4 Catalyzed Highly Regioselective Synthesis of 2,3,4-Trisubstituted Pyrroles From Unactivated Terminal Alkynes and Isocyanides; D. K. Tiwari, M. Phanindrudu, V. K. Aravilli, B. Sridhar, Pravin R. Likhar and Dharmendra Kumar Tiwari*; Chemical Communications.; 2016, 52, 4675
10. Palladium Catalyzed Domino Reaction of 1,4-Disubstituted 1,2,3-Triazoles via Double C-H functionalization: One-pot Synthesis of Triazolo[1,5-f]phenanthridines; Avanish Kumar, Dharmendra Kumar Tiwari, and Pravin Likhar; RSC Advances 2016, 6, 43638.
9. Visible Light Photoredox Mediated sp3C-H Functionalization and Coupling of Secondary Amines with Vinyl Azides in Flow Microreactors; Dharmendra Kumar Tiwari,* R. Maurya* and J. B. Nanubolu; Chemistry-A European Journal, 2016, 22, 526.
8. Nano-copper catalysed highly regioselective synthesis of 2,4-disubstituted pyrroles from terminal alkynes and isocyanides. D. K. Tiwari, J. Pogula, Dharmendra Kumar Tiwari* and Pravin R. Likhar, Chemical. Communications. 2015, 51, 13646
7. A general and practical route to 4,5-disubstituted oxazoles using acid chlorides and isocyanides. Dipak Kumar Tiwari, Jaya Pogula, Dharmendra Kumar Tiwari,* RSC Advances, 2015, 5, 5311.
6. Divergent total synthesis of 1,6,8a-tri-epi-castanospermine and 1-deoxy-6,8a-di-epi-castanospermine from substituted azetidin-2one (β-lactam), involving a cascade sequence of reactions as key step; Dipak Kumar Tiwari, Kishor Chandra Bharadwaj, Vedavati G. Puranik and Dharmendra Kumar Tiwari*, Org. Biomol. Chem., 2014, 12, 7389-739.
Publications from Ph.D and Post-Doc
5. Morita–Baylis–Hillman reaction of acrylamide with isatin derivatives; R. M. Singh, K. C. Bharadwaj and Dharmendra Kumar Tiwari; Beilstein J. Org. Chem. 2014, 10, 2975-2980.
4. Double Morita–Baylis–Hillman (MBH) strategy; an intermolecular and a chemo selective intramolecular MBH reactions for 5/6 substituted, functionalized piperidine unit. K.C. Bhardwaj and Dharmendra Kumar Tiwari, Tetrahedron, 2016, 72, 312 – 317.
3. Enantioselective Total Synthesis of D-xylo-phytosphingosine from Substituted Azetitidin-2-one; Ganesh Pandey*, and Dharmendra Kumar Tiwari; Tetrahedron Letters, 2009, 50, 3296-3298.
2. Azetidin-2, 3-dione Synthon for Stereoselective Synthesis of cis and trans C-3-Alkyl/Aryl Azetidin-2-ones; Dharmendra Kumar Tiwari, A. Y. Shaikh, L. S. Pavase, V. K. Gumaste and A. R. A. S. Deshmukh. Tetrahedron, 2007, 63, 2524-2534.
1. Stereoselective synthesis of 3-alkylidene/alkylazetidin-2-ones from azetidin-2,3-diones; Dharmendra Kumar Tiwari, Vikas K. Gumaste, A. R. A. S. Deshmukh; Synthesis 2006, 01, 115-122