Zobrazeno 1 - 10 of 113 pro vyhledávání: '"Pravin R. Likhar"'
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Akademický článek
One-step production of adipic acid from cyclohexane over stable oxides (CeO2 & ZrO2) using O2: Enhanced oxidation activity in acidic medium
Autor: Sudip Dandapat, Joshi Laxmikanth Rao, Pravin R. Likhar, Soumitra Payra, Sounak Roy, Tinku Baidya
Publikováno v: Catalysis Communications, Vol 172, Iss , Pp 106555- (2022)
One-step production of adipic acid from cyclohexane using O2 is a long due process for replacing conventional two-step process involving nitric acid oxidation of KA-oil. This work presents one-step oxidation of cyclohexane into adipic acid using O2 o
Externí odkaz: https://doaj.org/article/acc54b63c4034925898831dd6c27c70f
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7
A multi-component 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
Autor: Pravin R. Likhar, Soumi Laha, Dharmendra Kumar Tiwari, Sundar S. Shinde, B. Sridhar
Publikováno v: Organic & Biomolecular Chemistry. 17:4121-4128
An efficient and one-pot tandem procedure for the synthesis of fused ethanopyrido [1,2-b] isoquinoline derivatives from ninhydrin, proline and alkynes has been developed. This strategy exhibits an unprecedented [3 + 2] cycloaddition reaction between
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::197ba2fffc79d6ab32a5bd96d20d87c6
https://doi.org/10.1039/c9ob00560a
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8
Transition-Metal-Free Approach for the Synthesis of 4-Aryl-quinolines from Alkynes and Anilines
Autor: Dharmendra Kumar Tiwari, Dipak Kumar Tiwari, Mandalaparthi Phanindrudu, Pravin R. Likhar, Sandip Balasaheb Wakade
Publikováno v: The Journal of Organic Chemistry. 83:9137-9143
An efficient and transition-metal-free approach for the synthesis of 4-arylquinolines from readily available anilines and alkynes in the presence of K2S2O8 and DMSO has been developed. A variety of alkynes and anilines having a diverse range of subst
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45194e5834451b0f754456fdecd8a00d
https://doi.org/10.1021/acs.joc.8b01204
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9
Unprecedented synthesis of 1,2,3-triazolo-cinnolinone via Sonogashira coupling and intramolecular cyclization
Autor: Balasubramanian Sridhar, Pravin R. Likhar, Avnish Kumar, Dharmendra Kumar Tiwari
Publikováno v: Organic & Biomolecular Chemistry. 16:4840-4848
An unprecedented copper mediated one-pot sequential synthesis of 1,2,3-triazolo cinnolinone derivatives from 2-halo-phenyl triazoles and terminal alkynes has been reported. Under the optimized reaction conditions, a broad range of substituted triazol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a9082ff3c67a0d0e4d1ee7ba58b97fd
https://doi.org/10.1039/c8ob01152d
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10
Transition-Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One-Carbon Homologation/Conjugate Addition/Annulation Cascade
Autor: Pothapragada S. K. Prabhakar Ganesh, Mandalaparthi Phanindrudu, Sandip Balasaheb Wakade, Pravin R. Likhar, Dharmendra Kumar Tiwari, Dipak Kumar Tiwari
Publikováno v: Organic Letters. 19:4948-4951
A transition-metal-free method for the construction of functionalized quinolines from readily available acetophenones and anthranils is reported. This one-pot reaction cascade involves in situ generation of α,β-unsaturated ketones from the acetophe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e9cbcd1c735ee1cf33a4d5e041ae8fd
https://doi.org/10.1021/acs.orglett.7b02429
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