Výsledky vyhledávání - "Attunuri, Nagireddy"

Palladium-catalyzed cyclizative cross coupling of ynone oximes with 2-haloaryl N-acrylamides for isoxazolyl indoline bis-heterocycles

Autor: Ramesh Kotipalli, Attunuri Nagireddy, Maddi Sridhar Reddy

Publikováno v: Organic & Biomolecular Chemistry. 20:2609-2614

We demonstrated a dual-cyclizative coupling of ynone oxime ethers with acrylamides for the synthesis of isoxazolyl 2-oxindoles. The cascade is triggered by a palladium(ii)-catalyzed ynone oxime ether cyclization, and is completed by a Heck-type coupl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c337bb7ff63ca9defde31dddbb10d882
https://doi.org/10.1039/d2ob00065b

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Rhodium-Catalyzed Regioselective Double Annulation of Enaminones with Propargyl Alcohols: Rapid Access to Arylnapthalene Lignan Derivatives

Autor: Attunuri Nagireddy, null Dattatri, Ramesh Kotipalli, Jagadeesh Babu Nanubolu, Maddi Sridhar Reddy

Publikováno v: The Journal of Organic Chemistry. 87:1240-1248

We present here a rhodium-catalyzed oxidative three-point double annulation of enaminones with propargylic alcohols via a C-H and a C-N bond activation to access arylnaphthalene-based lignan derivatives. The key step in the reaction is the regioselec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::687c8b5f031f5b8ef217ac9d05aa66a5
https://doi.org/10.1021/acs.joc.1c02575

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Rhodium-Catalyzed Coordination-Assisted Regioselective and Migratory Three-Point Double Annulation of

Autor: Attunuri, Nagireddy, Ramesh, Kotipalli, Jagadeesh Babu, Nanubolu, Maddi, Sridhar Reddy

Publikováno v: Organic letters. 24(28)

We disclose herein a Rh(III)-catalyzed migratory three-point double annulation of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::faa02838e99c41f88e8a3f2570b8a605
https://pubmed.ncbi.nlm.nih.gov/35815845

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Harnessing Rhodium-Catalyzed C–H Activation: Regioselective Cascade Annulation for Fused Polyheterocycles

Autor: Attunuri Nagireddy, Maddi Sridhar Reddy, Undamatla Suri Babu, Maneesh Kumar Reddy Singam, Jagadeesh Babu Nanubolu

Publikováno v: The Journal of Organic Chemistry. 86:8069-8077

In the realm of transition-metal catalyzed arene functionalization, rhodium(III) catalysis is considered as exemplary due to its propensity to activate C-H bonds to obtain comprehensive molecular assembly. Herein, we demonstrate a new rhodium(III) ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dbb3b033504c24d49a2366b1e051715
https://doi.org/10.1021/acs.joc.1c00477

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Base-Mediated Cyclopentannulation of Ynones with Amino Crotonates for Regio- and Stereoselective Synthesis of Pentafulvenes and Cyclopenta[c]quinolines

Autor: Maneesh Kumar Reddy Singam, Maddi Sridhar Reddy, Jagadeesh Babu Nanubolu, Attunuri Nagireddy

Publikováno v: The Journal of Organic Chemistry. 85:6970-6980

A regio- and stereoselective synthesis of unsymmetrically substituted pentafulvenes is reported via the condensation of readily available ynones and amino crotonates under very mild conditions. The mechanism of this 3 + 2 annulation involved a vinylo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::569a22699e82448eefa78189fa6b4e68
https://doi.org/10.1021/acs.joc.0c00203

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Ni-Catalyzed electrophile driven regioselective arylative cyclization of ortho-functional diaryl acetylenes for the synthesis of pyridine and indene derivatives

Autor: Manda Rajesh, Attunuri Nagireddy, Maddi Sridhar Reddy, Veeramalla Ganesh, Maneesh Kumar Reddy Singam

Publikováno v: Organic Chemistry Frontiers. 7:30-34

A regioselective carbonickelation followed by cyclization, an arylative cyclization, of ortho functional diaryl acetylenes is achieved apparently through an electrophile driven alkyne polarization. A series of selectively substituted di aryl isoquino

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a5a25354e04e6233565cff86c22072a
https://doi.org/10.1039/c9qo01266d

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Base-mediated benzannulation of α-cyanocrotonates with ynones: facile synthesis of benzonitriles and fluorenes

Autor: Maneesh Kumar Reddy Singam, Sridhar Reddy Maddi, Attunuri Nagireddy

Publikováno v: Green Chemistry. 22:2370-2374

Here, we have demonstrated a strategic rapid approach for the synthesis of benzonitriles and cyanofluorenes via the [3 + 3] benzannulation of readily available alkynones and α-cyanocrotonates, a protocol par excellence for aryl nitriles. This decarb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0bbdb5c43691b4122aa73232b4ee7fe2
https://doi.org/10.1039/d0gc00608d

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Palladium-catalyzed cyclizative cross coupling of ynone oximes with 2-haloaryl

Autor: Ramesh, Kotipalli, Attunuri, Nagireddy, Maddi Sridhar, Reddy

Publikováno v: Organicbiomolecular chemistry. 20(13)

Metal-catalyzed cyclizative cross-coupling reactions have attracted enormous attention due to their unique cascade nature. We demonstrated, herein, a dual-cyclizative coupling of ynone oxime ethers with acrylamides for the synthesis of methylene-link

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::691723b8e29eda768bb92414c0a5072d
https://pubmed.ncbi.nlm.nih.gov/35298580

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