Výsledky vyhledávání - "Ramesh Balaboina"

One-pot synthesis of 3-aminofurans using a simple and efficient recyclable CuI/[bmim]PF6 system

Autor: Narasimha Swamy Thirukovela, Ravinder Vadde, Veeranna Guguloth, Ramesh Balaboina

Publikováno v: Organic & Biomolecular Chemistry. 19:7438-7445

A one-pot three-component reaction of several 2-ketoaldehydes, secondary amines and terminal alkynes to access 3-aminofurans proceeded well in [bmim][PF6] using a simple and cheap CuI catalyst. The resultant 3-aminofuran products were easily isolated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1044b1bfe45955bab3c44075bcb96fb
https://doi.org/10.1039/d1ob01132d

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One-pot synthesis of 3-aminofurans using a simple and efficient recyclable CuI/[bmim]PF

Autor: Veeranna, Guguloth, Ramesh, Balaboina, Narasimha Swamy, Thirukovela, Ravinder, Vadde

Publikováno v: Organicbiomolecular chemistry. 19(34)

A one-pot three-component reaction of several 2-ketoaldehydes, secondary amines and terminal alkynes to access 3-aminofurans proceeded well in [bmim][PF

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::23d309e07c8f6a8e95b0ba4af536631a
https://pubmed.ncbi.nlm.nih.gov/34612362

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Activation of nitriles by silver(I) N-heterocyclic carbenes: An efficient on-water synthesis of primary amides

Autor: Narasimha Swamy Thirukovela, Ramesh Balaboina, Chandra Sekhar Vasam, Ravindhar Vadde, Shravankumar Kankala

Publikováno v: Tetrahedron. 75:2637-2641

A first example of silver(I) N-heterocyclic carbene (Ag(I)-NHC) catalyzed on-water synthesis of primary amides by hydration of nitriles under mild reaction conditions is described. This organometallic catalytic system has excellent tolerance for vari

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39e9fda10f170672c913f28d289c8177
https://doi.org/10.1016/j.tet.2019.03.017

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Amide bond synthesis via silver(I) N-heterocyclic carbene-catalyzed and tert-butyl hydroperoxide-mediated oxidative coupling of alcohols with amines under base free conditions

Autor: Narasimha Swamy Thirukovela, Ravinder Vadde, Ramesh Balaboina, Chandra Sekhar Vasam

Publikováno v: Tetrahedron Letters. 60:847-851

We present a base free method for amide bond construction via oxidative coupling of alcohols with amines catalyzed by Silver(I) N-heterocyclic carbenes (Ag(I)-NHCs) and mediated by tert-butyl hydroperoxide (TBHP) in ethanol. The results of controlled

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aac4b102d672e3aa34f58387d708b8cc
https://doi.org/10.1016/j.tetlet.2019.02.024

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One-pot regioselective synthesis of substituted pyrazoles and isoxazoles in PEG-400/water medium by Cu-free nano-Pd catalyzed sequential acyl Sonogashira coupling–intramolecular cyclization

Autor: Vinayak Botla, Ravinder Vadde, Ramesh Balaboina, Sreekantha B. Jonnalagadda, Chandra Sekhar Vasam, Narasimha Swamy Thirukovela

Publikováno v: Catalysis Science & Technology. 9:6471-6481

Catalyst efficacy of in situ generated Pd-nanoparticles (PdNPs) in the regioselective one-pot synthesis of 3,5-di & 3,4,5-trisubstituted pyrazoles and 3,5-disubstituted isoxazoles in environmentally benign PEG-400/H2O medium, which involves the seque

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fb027ebf9dbd70244f02fb22e547bea6
https://doi.org/10.1039/c9cy01335k

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Water dispersed gold nanoparticles catalyzed aerobic oxidative cross-dehydrogenative coupling: An efficient synthesis of α-ketoamides in water

Autor: Ramesh Balaboina, Chandra Sekhar Vasam, Ravinder Vadde, Narasimha Swamy Thirukovela

Publikováno v: Tetrahedron Letters. 59:3749-3752

An effective green synthesis of α-ketoamides was developed for the first time in water via gold nanoparticles (AuNPs) catalyzed aerobic oxidative cross-dehydrogenative coupling of secondary amines with phenylglyoxals with a broad substrate scope.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70615084190182bd3c94012b450b1e88
https://doi.org/10.1016/j.tetlet.2018.08.042

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Hydrophilic Pd-phosphines catalyzed one-pot synthesis of substituted isoquinolines, furopyridines and thienopyridines in aqueous medium

Autor: Ravinder Vadde, Veeranna Guguloth, Narasimha Swamy Thirukovela, Ramesh Balaboina, Suresh Paidakula

Publikováno v: Tetrahedron Letters. 60:297-299

A first example of simple and efficient hydrophilic Pd-phosphine complexes catalyzed one-pot three-component reaction of ortho-bromo aldehydes, terminal alkynes and ammonium acetate proceeds through the tandem coupling-imination-annulation path for t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4df1d5a9ee557a8b1820891b96ba78dc
https://doi.org/10.1016/j.tetlet.2018.12.035

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Decarbonylation of Salicylaldehyde Activated byp-Cymene Ruthenium(II) Dimer: Implication for Catalytic Alkyne Hydrothiolation

Autor: Narasimha Swamy Thirukovela, Ravinder Vadde, Sreekantha B. Jonnalagadda, Ramesh Balaboina, Shravankumar Kankala, Chandra Sekhar Vasam, Sarangapani Modem

Publikováno v: European Journal of Organic Chemistry. 2016:4635-4642

A stoichiometric C–H activation/decarbonylation of salicylaldehyde by [(η6-p-cymene)RuCl2]2 gave a carbonyl derivative [(η6-p-cymene)RuCl(CO)(Ph-O)] (1) without the use of CO gas. A variety of polar phosphines were then incorporated into compound

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e287120646e2e3f74507dd695364874e
https://doi.org/10.1002/ejoc.201600809

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