Výsledky vyhledávání - "Kommuru, Goutham"

Divergent Thio/Selenolactonization of Styrene-Type Carboxylic Acids and Amides: Synthesis of Chalcogenated Isobenzofuran-1 (3H)-ones and Isochroman-1-ones

Autor: Kang Zhao, Yunfei Du, Jingran Zhang, Kommuru Goutham, Yaxin Ouyang

Publikováno v: Synlett. 33:1266-1272

A divergent synthesis of isobenzofuran-1(3H)-one and 3,4-dihydroisochroman-1-one derivatives has been realized through the reaction of o-alkenyl benzoic acids/amides with PhICl2 and diphenyl disulfides/diselenides. Depending on the substitution type

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89177bae8b652c97c3be1492dd94c6ae
https://doi.org/10.1055/a-1827-6915

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Gold-catalyzed intramolecular cyclization/condensation sequence: synthesis of 1,2-dihydro[c][2,7]naphthyridines

Autor: Balasubramanian Sridhar, Veerabhushanam Kadiyala, Kommuru Goutham, Galla V. Karunakar

Publikováno v: Organic & Biomolecular Chemistry. 15:7813-7818

An efficient gold-catalyzed synthetic protocol for the construction of 1,2-dihydro[c][2,7]naphthyridines from 2-aminophenyl prop-2-yn-1-yl enaminones has been developed. In this organic transformation new C-C and C-N bond formations occur via 6-endo-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f38bbe73d9ab7b07ed181e7fc5941f3f
https://doi.org/10.1039/c7ob01285c

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Gold-Catalyzed Intramolecular Regioselective 7-exo-dig Cyclization To Access 3-Methylene-3,4-dihydrobenzo[b]oxepinones

Autor: Galla V. Karunakar, Kommuru Goutham, B. Sridhar, Veerabhushanam Kadiyala, Ravinder Guduru, N. S. V. M. Rao Mangina

Publikováno v: Organic Letters. 19:282-285

An efficient gold-catalyzed synthesis of substituted 3-methylene-3,4-dihydrobenzo[b]oxepinones from ortho-O-propargyl substituted aryl enaminones has been achieved. In this transformation a new C-C bond formation occurred regioselectively via 7-exo-d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9a994e0af5aa5d2fc0a655341b736e7
https://doi.org/10.1021/acs.orglett.6b03433

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Synthesis of Tetracyclic Tetrahydro-β-carbolines by Acid-Promoted One-Pot Sequential Formation of C−C and C−N Bonds

Autor: Dalovai Purnachander, Surisetti Suresh, Galla V. Karunakar, Kommuru Goutham, Vemu Nagaraju, Balasubramanian Sridhar

Publikováno v: Asian Journal of Organic Chemistry. 5:1378-1387

An efficient synthetic protocol was developed for the formation of tetracyclic tetrahydro--carbolines using p-TSA mediated reaction of -enaminones and acetylenedicarboxylates. Highly functionalized tetracyclic tetrahydro--carboline derivatives were s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09554931e52bb73caaeb08a13ce71096
https://doi.org/10.1002/ajoc.201600349

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Gold-Catalyzed Intramolecular Cyclization of N-Propargylic β-Enaminones for the Synthesis of 1,4-Oxazepine Derivatives

Autor: Balasubramanian Sridhar, Surisetti Suresh, Ravirala Narender, Desamala Ashok Kumar, Galla V. Karunakar, Kommuru Goutham

Publikováno v: The Journal of Organic Chemistry. 80:11162-11168

An efficient and mild one-pot, gold-catalyzed intramolecular cyclization of N-propargylic β-enaminones has been achieved for the generation of 1,4-oxazepine derivatives. This synthetic transformation tolerates a range of substituted N-propargylic β

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b173eeb597931a9bf4169b388ccc0dc0
https://doi.org/10.1021/acs.joc.5b01733

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Gold-catalysed cyclisation of N-propargylic β-enaminones to form 3-methylene-1-pyrroline derivatives

Autor: Kommuru Goutham, N. S. V. M. Rao Mangina, Galla V. Karunakar, Pallepogu Raghavaiah, Surisetti Suresh

Publikováno v: Org. Biomol. Chem.. 12:2869-2873

A gold(I) catalysed reaction between N-propargylic β-enaminones and arynes was developed to access 3-methylene-1-pyrrolines. The title compounds were obtained in 57-78% yields. This reaction is useful for the generation of substituted 1-pyrrolines e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d26fb40e1a3d12b7ecc7adc0940893f
https://doi.org/10.1039/c3ob42513d

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Reaction of N-propargylic β-enaminones with acetylene dicarboxylates: catalyst-free synthesis of 3-azabicyclo[4.1.0]hepta-2,4-dienes

Autor: Vemu Nagaraju, Galla V. Karunakar, Pallepogu Raghavaiah, Kommuru Goutham, Surisetti Suresh

Publikováno v: RSC Adv.. 4:21054-21059

3-Azabicyclo[4.1.0]hepta-2,4-dienes were efficiently synthesized in a reaction of N-propargylic β-enaminones with acetylenedicarboxylates under novel and exceptional catalyst- and base-free conditions in a single step.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::420b836152d8435d8d970492dd328136
https://doi.org/10.1039/c4ra00136b

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