1
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Karunakar GV, Bharath Kumar P, Rami Reddy PV, Sunil K, Emmaniel Raju C, Sridhar B. Gold(I)-Catalyzed Regioselective Synthesis of Indenylidene Derivatives via 1,5-Acryl Migration. Chem Asian J 2024:e202400310. [PMID: 38715395 DOI: 10.1002/asia.202400310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/06/2024] [Indexed: 06/12/2024]
Abstract
A novel gold (I)-catalyzed synthetic strategy has been achieved for an efficient construction of indenylidene derivatives from substituted 1,6-diynes. This reaction describes the unique reactivity of gold catalysis in facilitating the intramolecular [3,3]-sigmatropic rearrangement, 5-exo dig cyclization followed by 1,5-migration of acryl group, resulting in the formation of substituted indenylidenes. Various substituted indenylidenes were successfully synthesized with up to 92 % yields. In this protocol, two new C-C bonds were sequentially formed atom economically in one pot.
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Affiliation(s)
- Galla V Karunakar
- Fluoro Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
- Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Perla Bharath Kumar
- Fluoro Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
- Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Pammi Venkata Rami Reddy
- Fluoro Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
- Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Komalla Sunil
- Fluoro Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
- Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Chittala Emmaniel Raju
- Fluoro Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
- Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Balasubramanian Sridhar
- Centre for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
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2
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Karunakar GV, Sunil K, Bharath Kumar P, Chandrappa M, Guduru R, Kantevari S, Sridhar B. Catalyst- and Additive-Free Methodical Ring Expansion Protocol to Access Benzooxepino-Fused Pyrroles. Chem Asian J 2023; 18:e202201071. [PMID: 36567599 DOI: 10.1002/asia.202201071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 12/27/2022]
Abstract
An efficient metal-free, additive-free synthetic method was developed to access benzooxepino-fused pyrrole derivatives from alkynyl substituted aziridines. In this organic transformation, two new C-C bonds were formed via initial cleavage of C-C bond of aziridine ring by in situ generated azomethine ylides. Moderate to excellent yields of benzooxepino-fused pyrroles were obtained atom economically in the presence of t-BuOH in one-pot.
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Affiliation(s)
- Galla V Karunakar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Komalla Sunil
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Perla Bharath Kumar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Muneppa Chandrappa
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
| | - Ravinder Guduru
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
| | - Srinivas Kantevari
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Balasubramanian Sridhar
- Centre for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
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3
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Bharath Kumar P, Raju CE, Chandubhai PH, Sridhar B, Karunakar GV. Gold(I)-Catalyzed Regioselective Cyclization to Access Cyclopropane-Fused Tetrahydrobenzochromenes. Org Lett 2022; 24:6761-6766. [DOI: 10.1021/acs.orglett.2c02564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Perla Bharath Kumar
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Chittala Emmaniel Raju
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Patel Hinal Chandubhai
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Balasubramanian Sridhar
- Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Galla V. Karunakar
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
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4
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Mandal D, Kumar A, Patil NT. Gold catalysis in organic synthesis: fifteen years of research in India. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2022. [DOI: 10.1007/s43538-022-00106-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Raju CE, Balasubramanian S, Karunakar GV. Copper(I)-Catalyzed Formation of Isoquinoline and Quinoline Substituted Isobenzofurans. Org Lett 2022; 24:2899-2904. [DOI: 10.1021/acs.orglett.2c00864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chittala Emmaniel Raju
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India and
| | - Sridhar Balasubramanian
- Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Galla V. Karunakar
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India and
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6
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Kadiyala V, Raju CE, Bania KK, Sridhar B, Karunakar GV. Gold (I)-Promoted Intermolecular Cascade Annulation to Access 2-Hydroxybenzocarbazoles via a Meyer-Schuster Rearrangement. Chem Asian J 2021; 17:e202101269. [PMID: 34874100 DOI: 10.1002/asia.202101269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/07/2021] [Indexed: 02/03/2023]
Abstract
An efficient cascade annulation protocol was established to access substituted 2-hydroxybenzocarbazoles from alkynylcyclohexadienones and substituted 2-aminophenols under gold catalysis. In this transformation a new C-C, two C-N bonds were formed sequentially and moderate to excellent yields of 2-hydroxybenzocarbazole derivatives were obtained selectively via Meyer-Schuster rearrangement in one-pot.
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Affiliation(s)
- Veerabhushanam Kadiyala
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Chittala Emmaniel Raju
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
| | - Kusum K Bania
- Department of Chemical Sciences, Tezpur University, 784028, Assam, India
| | - Balasubramanian Sridhar
- Centre for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India
| | - Galla V Karunakar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, 500007, Hyderabad, India.,Academy of Scientific and Innovative Research, 201002, Ghaziabad, India
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7
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Sreenivasulu G, Kadiyala V, Raju CE, Sridhar B, Karunakar GV. Gold‐Catalyzed Synthesis of Pyrazolo[1,5‐
a
]pyridines Regioselectively
via
6‐
endo‐dig
Cyclization. ChemistrySelect 2021. [DOI: 10.1002/slct.202102580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gottam Sreenivasulu
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
| | - Veerabhushanam Kadiyala
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
| | - Chittala Emmaniel Raju
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
| | - Balasubramanian Sridhar
- Centre for X-ray Crystallography CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India)
| | - Galla V. Karunakar
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
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8
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Morita N, Tamura O. Strategic Use of Difference of Valence of Gold Catalysts: Development of Cyclization Reactions Oriented toward Synthetic Diversity Using Propargylic Alcohols. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Handelmann J, Babu CN, Steinert H, Schwarz C, Scherpf T, Kroll A, Gessner VH. Towards the rational design of ylide-substituted phosphines for gold(i)-catalysis: from inactive to ppm-level catalysis. Chem Sci 2021; 12:4329-4337. [PMID: 34168748 PMCID: PMC8179644 DOI: 10.1039/d1sc00105a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The implementation of gold catalysis into large-scale processes suffers from the fact that most reactions still require high catalyst loadings to achieve efficient catalysis thus making upscaling impractical. Here, we report systematic studies on the impact of the substituent in the backbone of ylide-substituted phosphines (YPhos) on the catalytic activity in the hydroamination of alkynes, which allowed us to increase the catalyst performance by orders of magnitude. While electronic changes of the ligand properties by introduction of aryl groups with electron-withdrawing or electron-donating groups had surprisingly little impact on the activity of the gold complexes, the use of bulky aryl groups with ortho-substituents led to a remarkable boost in the catalyst activity. However, this catalyst improvement is not a result of an increased steric demand of the ligand towards the metal center, but due to steric protection of the reactive ylidic carbon centre in the ligand backbone. The gold complex of the thus designed mesityl-substituted YPhos ligand YMesPCy2, which is readily accessible in one step from a simple phosphonium salt, exhibited a high catalyst stability and allowed for turnover numbers up to 20 000 in the hydroamination of a series of different alkynes and amines. Furthermore, the catalyst was also active in more challenging reactions including enyne cyclisation and the formation of 1,2-dihydroquinolines.
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Affiliation(s)
- Jens Handelmann
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Chatla Naga Babu
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Henning Steinert
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Christopher Schwarz
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Thorsten Scherpf
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Alexander Kroll
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Viktoria H Gessner
- Faculty of Chemistry and Biochemistry, Chair of Inorganic Chemistry II, Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
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10
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p-TSA-catalyzed a simple and efficient one-pot eco-friendly synthesis of functionalized new isoxazolyl-4-hydroxyindole-3-carboxylate derivatives in aqueous medium. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2020.1825743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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11
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Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
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12
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Emmaniel Raju C, Kadiyala V, Sreenivasulu G, Kumar PB, Sridhar B, Karunakar GV. Gold-catalyzed synthesis of 1 H-isochromene-4-carbaldehydes via oxidative cascade cyclization. Org Biomol Chem 2021; 19:3634-3643. [PMID: 33908556 DOI: 10.1039/d1ob00066g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient gold-catalyzed formation of indenylidene-derived 1H-isochromene-4-carbaldehydes from substituted 1,5,10-triyne-O-silanes was developed under mild reaction conditions. In this reaction, gold-catalyzed selective oxidation, 1,2-migration, nucleophilic addition and then 5-endo-dig cyclization took place regioselectively. The indenylidene-derived isochromene-4-carbaldehydes were synthesized in moderate to very good yields via the formation of new C-C and C-O bonds in one pot.
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Affiliation(s)
- Chittala Emmaniel Raju
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. and Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Veerabhushanam Kadiyala
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. and Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Gottam Sreenivasulu
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. and Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Perla Bharath Kumar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. and Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Balasubramanian Sridhar
- Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Galla V Karunakar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. and Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
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13
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Beletskaya IP, Naájera C, Yus M. Catalysis and regioselectivity in hydrofunctionalization reactions of unsaturated carbon bonds. Part II. Hydroamination. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4953] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This review continues consideration of the regioselectivity problem in the catalyzed hydrofunctionalization of unsaturated organic compounds and addresses hydroamination of unsaturated hydrocarbons. Particular parts of the review deal with reactions of alkenes, alkynes, allenes and dienes. It is shown that the selectivity of hydroamination depends on the natures of the reactants and the catalyst. Conditions of the reactions are described; in some cases, reaction mechanisms are discussed. Reactions for which divergent regioselectivity is possible are noted.
The bibliography includes 249 references.
Dedicated to the memory of V.V.Markovnikov.
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14
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Kadiyala V, Kumar PB, Sunil K, Raju CE, Sridhar B, Karunakar GV. Gold(iii) promoted formation of dihydroquinazolinones: double X-H activation by gold. RSC Adv 2020; 10:35681-35691. [PMID: 35517079 PMCID: PMC9056963 DOI: 10.1039/d0ra06537d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/14/2020] [Indexed: 12/25/2022] Open
Abstract
An efficient 2-furyl gold-carbene promoted synthetic method was developed for the formation of dihydroquinazolinones from enynones by dual insertion of anthranilamides. In this organic transformation a new C-O and two C-N bond formations occurred and dihydroquinazolinones were obtained with a quaternary centre in moderate to very good yields in one-pot synthesis.
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Affiliation(s)
- Veerabhushanam Kadiyala
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Perla Bharath Kumar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Komalla Sunil
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Chittala Emmaniel Raju
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Balasubramanian Sridhar
- Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Galla V Karunakar
- Fluoro and Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
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15
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Thummala Y, Raju CE, Purnachandar D, Sreenivasulu G, Doddi VR, Karunakar GV. Gold‐Catalyzed Regioselective Synthesis of Pyrazolo[1,4]oxazepines via Intramolecular
7
‐
endo‐dig
Cyclization. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901852] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yadagiri Thummala
- Fluoro and Agrochemicals Department CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- Academy of Scientific and Innovative Research 201002 Ghaziabad India
| | - Chittala Emmaniel Raju
- Fluoro and Agrochemicals Department CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- Academy of Scientific and Innovative Research 201002 Ghaziabad India
| | - Dalovai Purnachandar
- Fluoro and Agrochemicals Department CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- Academy of Scientific and Innovative Research 201002 Ghaziabad India
| | - Gottam Sreenivasulu
- Fluoro and Agrochemicals Department CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- Academy of Scientific and Innovative Research 201002 Ghaziabad India
| | - Venkata Ramana Doddi
- Department of Chemistry and Chemical Sciences Central University of Karnataka 585367 Kadaganchi Karnataka India
| | - Galla V. Karunakar
- Fluoro and Agrochemicals Department CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- Academy of Scientific and Innovative Research 201002 Ghaziabad India
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