1
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Qin J, Jiang S, Luo X, Wang T, Liu P, Yuan B, Yan R. I 2-catalyzed synthesis of 3-aminopyrrole with homopropargylic amines and nitrosoarenes. Chem Commun (Camb) 2024. [PMID: 38477099 DOI: 10.1039/d4cc00482e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The synthesis of 3-aminopyrrole using the amination reagent nitrosoarenes and homopropargylic amines catalyzed by I2 through cyclization and amination has been developed. This protocol features excellent functional group tolerance and mild reaction conditions, yielding 3-aminopyrroles in moderate to good yields without a metal catalyst. This method realizes the construction and amination of the 3-aminopyrroles in which nitrosoarenes serve as the amine source and oxidant.
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Affiliation(s)
- Jiaze Qin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Shixuan Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Xiaofeng Luo
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu 610041, Sichuan, China
| | - Tianqiang Wang
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu 610041, Sichuan, China
| | - Peihua Liu
- Research Institute of Oil and Gas Technology of Changqing Oilfield Company, Xian 710018, Shaanxi, China
| | - Bingxiang Yuan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
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2
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Laru S, Bhattacharjee S, Ghosh S, Hajra A. One-Pot Construction of Indolo[2,3- b]quinoxalines through Ruthenium-Catalyzed Ortho C-H Bond Functionalization of 2-Arylquinoxalines with Sulfonyl Azides. Org Lett 2021; 23:7624-7629. [PMID: 34543023 DOI: 10.1021/acs.orglett.1c02837] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of N-substituted indolo[2,3-b]quinoxalines has been developed through a Ru(II)-catalyzed ortho C-H functionalization of 2-arylquinoxalines with sulfonyl azides and further oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone in one pot. This double C-N bond formation strategy provides a new efficient route for the preparation of a series of biologically relevant 6H-indolo[2,3-b]quinoxaline derivatives in up to 94% yield, suggesting a broad substrate scope applicability. The preliminary mechanistic studies reveal that the sequential C-N bond formations proceed through the formation of a five-membered ruthenacyclic intermediate in the first step and a radical mechanism in the second step.
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Affiliation(s)
- Sudip Laru
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Suvam Bhattacharjee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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3
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Mallik S, Bhajammanavar V, Baidya M. Regioselective Nitrosocarbonyl Aldol Reaction of Deconjugated Butyrolactams: Synthesis of γ‐Heterosubstituted α,β‐Unsaturated γ‐Lactams. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sumitava Mallik
- Department of Chemistry Indian Institute of Technology Madras Chennai 6000036 Tamil Nadu India
| | - Vinod Bhajammanavar
- Department of Chemistry Indian Institute of Technology Madras Chennai 6000036 Tamil Nadu India
| | - Mahiuddin Baidya
- Department of Chemistry Indian Institute of Technology Madras Chennai 6000036 Tamil Nadu India
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4
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Raclea RC, Natho P, Allen LAT, White AJP, Parsons PJ. Oxidative Deconstruction of Azetidinols to α-Amino Ketones. J Org Chem 2020; 85:9375-9385. [PMID: 32543189 DOI: 10.1021/acs.joc.0c00986] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A silver-mediated synthesis of α-amino ketones via the oxidative deconstruction of azetidinols has been developed using a readily scalable protocol with isolated yields up to 80%. The azetidinols are easily synthesized in one step and can act as protecting groups for these pharmaceutically relevant synthons. Furthermore, mechanistic insights are presented and these data have revealed that the transformation is likely to proceed through the β-scission of an alkoxy radical, followed by oxidation and C-N cleavage of the resulting α-amido radical.
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Affiliation(s)
- Robert-Cristian Raclea
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, U.K
| | - Philipp Natho
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, U.K
| | - Lewis A T Allen
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, U.K
| | - Andrew J P White
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, U.K
| | - Philip J Parsons
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, U.K
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5
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Mallik S, Bhajammanavar V, Baidya M. Catalyst-Controlled Regioselective Nitrosocarbonyl Aldol Reaction of Deconjugated Butenolides. Org Lett 2020; 22:1437-1441. [PMID: 31999129 DOI: 10.1021/acs.orglett.0c00039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An unprecedented regiodivergent nitrosocarbonyl aldol reaction of γ-substituted deconjugated butenolides is described. While Lewis base catalyst quinidine leveraged O-selective nitrosocarbonyl aldol reaction exclusively at the γ-position of deconjugated butenolides to produce γ-aminoxylation products, Lewis acid catalyst Cu(OTf)2 steered the competitive N-selective nitrosocarbonyl aldol reaction at the β-position, resulting in heterodifunctionalized butenolides. Both processes were amenable to a broad range of substrates and scalable, while the latter one represents a rare example of one-pot hetero-β,γ-difunctionalization of butenolide scaffolds.
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Affiliation(s)
- Sumitava Mallik
- Department of Chemistry , Indian Institute of Technology Madras , Chennai - 600 036 , India
| | - Vinod Bhajammanavar
- Department of Chemistry , Indian Institute of Technology Madras , Chennai - 600 036 , India
| | - Mahiuddin Baidya
- Department of Chemistry , Indian Institute of Technology Madras , Chennai - 600 036 , India
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6
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Goliszewska K, Rybicka-Jasińska K, Szurmak J, Gryko D. Visible-Light-Mediated Amination of π-Nucleophiles with N-Aminopyridinium Salts. J Org Chem 2019; 84:15834-15844. [DOI: 10.1021/acs.joc.9b02073] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Katarzyna Goliszewska
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | | | - Jakub Szurmak
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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7
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Ghosh A, Chawla V, Banerjee P. An Assessment of Electrophilic N-Transfer of Oxaziridine with Different 2-, 3-, and 4-Carbon Donor-Acceptor Substrates to Furnish Diverse N-Containing Heterocycles in a Single Step. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900589] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Asit Ghosh
- Department of Chemistry; Indian Institute of Technology; Nangal Road Rupnagar, Punjab Pin 140001 India
| | - Vatan Chawla
- Department of Chemistry; Indian Institute of Technology; Nangal Road Rupnagar, Punjab Pin 140001 India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology; Nangal Road Rupnagar, Punjab Pin 140001 India
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8
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Mallik S, Bhajammanavar V, Mukherjee AP, Baidya M. Catalytic Regiodivergent Dearomatization Reaction of Nitrosocarbonyl Intermediates with β-Naphthols. Org Lett 2019; 21:2352-2355. [DOI: 10.1021/acs.orglett.9b00628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Vinod Bhajammanavar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Arka Probha Mukherjee
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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9
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Ghazanfarpour-Darjani M, Barat-Seftejani F, Khalaj M, Mousavi-Safavi SM. Synthesis of N
-alkyl-N
′-aryl or Alkenylpiperazines: A Copper-Catalyzed C-N Cross-Coupling in the Presence of Aryl and Alkenyl Triflates and DABCO. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Majid Ghazanfarpour-Darjani
- Young Researchers and Elite Club; Islamic Azad University; P.O. Box 14115-175 Buin Zahra Branch Buin Zahra Iran
| | - Forugh Barat-Seftejani
- Young Researchers and Elite Club; Islamic Azad University; P.O. Box 14115-175 Buin Zahra Branch Buin Zahra Iran
| | - Mehdi Khalaj
- Young Researchers and Elite Club; Islamic Azad University; P.O. Box 14115-175 Buin Zahra Branch Buin Zahra Iran
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10
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Mallik S, Bhajammanavar V, Ramakrishna I, Baidya M. Cross-Aldol Reaction of Activated Carbonyls with Nitrosocarbonyl Intermediates: Stereoselective Synthesis toward α-Hydroxy-β-amino Esters and Amides. Org Lett 2017; 19:3843-3846. [PMID: 28700246 DOI: 10.1021/acs.orglett.7b01721] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A practical and flexible strategy toward α-hydroxy-β-amino esters and amides, which are important biological motifs, based on an organocatalytic cross-aldol reaction of in situ-generated nitrosocarbonyl intermediates followed by hydrogenation is presented. The protocol features operational simplicity, high yields, a wide substrate scope, and high regio- and diastereoselectivity profiles. The utility of this method was showcased through the synthesis of bestatin analogues and indole formation.
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Affiliation(s)
- Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
| | - Vinod Bhajammanavar
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
| | - Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
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11
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Reddy MK, Mallik S, Ramakrishna I, Baidya M. Nitrosocarbonyl–Henry and Denitration Cascade: Synthesis of α-Ketoamides and α-Keto Oximes. Org Lett 2017; 19:1694-1697. [DOI: 10.1021/acs.orglett.7b00482] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mallu Kesava Reddy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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12
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Abstract
The nitrosocarbonyls (R-CONO) are highly reactive species and remarkable intermediates toward different synthetic targets. This review will cover a research area whose impact in current organic synthesis is constantly increasing in the chemical community. This review represents the first and comprehensive picture on the generation and trapping of nitrosocarbonyls and is solidly built on more than 380 papers. Six different classes of key starting materials such as hydroxamic acids, N-hydroxy carbamates, N-hydroxyureas, nitrile oxides, and 1,2,4-oxadiazole-4-oxides were highlighted. The content of the review surveys all the methods to generate the nitrosocarbonyls through different approaches (oxidative, thermal, photochemical, catalytic, aerobic, and the less common ones) in the light of efficiency, yields, and mildness. The most successful trapping agents employed to catch these fleeting intermediates are reviewed, exploiting their superior dienophilic, enophilic, and electrophilic power. The work is completed by paragraphs dedicated to the detection of the intermediates, theoretical studies, and insights about the challenges and future directions for the field.
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Affiliation(s)
- Misal Giuseppe Memeo
- Dipartimento di Chimica, Università degli Studi di Pavia , Viale Taramelli 12, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Dipartimento di Chimica, Università degli Studi di Pavia , Viale Taramelli 12, 27100 Pavia, Italy
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13
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Ramakrishna I, Bhajammanavar V, Mallik S, Baidya M. Advanced Nitroso Aldol Reaction: Metal-Free Cross-Coupling of Anilines with Silyl Enol Ethers en Route to α-Amino Ketones. Org Lett 2017; 19:516-519. [DOI: 10.1021/acs.orglett.6b03686] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Vinod Bhajammanavar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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14
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Nourian S, Zilber ZA, Toscano JP. Development of N-Substituted Hydroxamic Acids with Pyrazolone Leaving Groups as Nitrosocarbonyl Precursors. J Org Chem 2016; 81:9138-9146. [PMID: 27617912 DOI: 10.1021/acs.joc.6b01705] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel class of nitrosocarbonyl precursors, N-substituted hydroxamic acids with pyrazolone leaving groups (NHPY), has been synthesized. Under physiological conditions, these compounds generate nitrosocarbonyl intermediates, which upon hydrolysis release nitroxyl (azanone, HNO) in excellent yields. The amount and rate of nitrosocarbonyl generation are dependent on the nature of the pyrazolone leaving groups and significantly on the structural properties of the NHPY donors. Pyrazolones have been found to be efficient nitrosocarbonyl traps, undergoing an N-selective nitrosocarbonyl aldol reaction. This trapping reaction has been used to confirm the involvement of nitrosocarbonyl intermediates in NHPY aqueous decomposition. In addition, NHPY compounds are shown to generate nitrosocarbonyls efficiently under mild basic conditions in organic solvent and may therefore also enjoy synthetic utility.
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Affiliation(s)
- Saghar Nourian
- Department of Chemistry, Johns Hopkins University , 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Zachary A Zilber
- Department of Chemistry, Johns Hopkins University , 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - John P Toscano
- Department of Chemistry, Johns Hopkins University , 3400 North Charles Street, Baltimore, Maryland 21218, United States
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16
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Ma J, Harms K, Meggers E. Enantioselective rhodium/ruthenium photoredox catalysis en route to chiral 1,2-aminoalcohols. Chem Commun (Camb) 2016; 52:10183-6. [DOI: 10.1039/c6cc04397f] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A visible-light-induced enantioselective redox coupling of α-silylalkylamines with 2-acyl imidazoles is catalyzed by a combination of a chiral Rh Lewis acid and a Ru photoredox sensitizer.
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Affiliation(s)
- Jiajia Ma
- Philipps-Universität Marburg
- 35043 Marburg
- Germany
| | - Klaus Harms
- Philipps-Universität Marburg
- 35043 Marburg
- Germany
| | - Eric Meggers
- Philipps-Universität Marburg
- 35043 Marburg
- Germany
- College of Chemistry and Chemical Engineering
- Xiamen University
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17
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Ramakrishna I, Sahoo H, Baidya M. Brønsted acid mediated N–O bond cleavage for α-amination of ketones through the aromatic nitroso aldol reaction. Chem Commun (Camb) 2016; 52:3215-8. [PMID: 26810365 DOI: 10.1039/c5cc10102f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Brønsted acid mediated N–O bond cleavage for α-amination of ketones has been developed through the nitroso aldol reaction of less-reactive aromatic nitroso compounds and silyl enol ethers having a disilane (–SiMe2TMS) backbone.
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Affiliation(s)
- Isai Ramakrishna
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Harekrishna Sahoo
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Mahiuddin Baidya
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
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18
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Sandoval D, Samoshin AV, Read de Alaniz J. Asymmetric Electrophilic α-Amination of Silyl Enol Ether Derivatives via the Nitrosocarbonyl Hetero-ene Reaction. Org Lett 2015; 17:4514-7. [PMID: 26317504 DOI: 10.1021/acs.orglett.5b02208] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- David Sandoval
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Andrey V. Samoshin
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Javier Read de Alaniz
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
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