1
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Sennari G, Yamagishi H, Sarpong R. Remote C-H Amination and Alkylation of Camphor at C8 through Hydrogen-Atom Abstraction. J Am Chem Soc 2024; 146:7850-7857. [PMID: 38447162 DOI: 10.1021/jacs.4c01351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Camphor continues to serve as a versatile chiral building block for chemical synthesis. We have developed a novel method to functionalize the camphor skeleton at C8 using an intramolecular hydrogen atom abstraction. The key advance involves the use of a camphor-derived aminonitrile, which is converted to the corresponding nitrogen-centered radical under photoredox conditions to effect the 1,5-hydrogen atom transfer at C8. The resulting carbon-centered radical at C8 was utilized in a C-H amination to access topologically complex proline derivatives. Furthermore, the total synthesis of several sesquiterpenoids was accomplished by engaging the radical generated at C8 in alkylation reactions.
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Affiliation(s)
- Goh Sennari
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- O̅mura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hiroki Yamagishi
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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2
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Varala R, Seema V, Alam MM, Dubasi N, Vummadi RD. Iodoxybenzoic Acid (IBX) in Organic Synthesis: A Septennial Review. Curr Org Synth 2024; 21:607-664. [PMID: 37861006 DOI: 10.2174/0115701794263252230924074035] [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: 06/05/2023] [Revised: 08/04/2023] [Accepted: 08/26/2023] [Indexed: 10/21/2023]
Abstract
This study reviews the oxidative applications of 2-iodoxybenzoic acid (IBX) in organic synthesis, focusing on C-H functionalization, hetero-hetero bond formations, ring cleavage reactions, dehydrogenation, heterocyclic ring formations, and some miscellaneous reactions in a comprehensive and critical way. It compiles the literature starting from mid-2015 to date.
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Affiliation(s)
- Ravi Varala
- Scrips Pharma, Mallapur, Hyderabad, 500 076, Telangana, India
| | - Vittal Seema
- Department of Chemistry, RGUKT Basar, Mudhole 504 107, Telangana, India
| | - Mohammed Mujahid Alam
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
| | | | - Rama Devi Vummadi
- Department of Chemistry, Chaitanya Bharathi Institute of Technology (CBIT), Gandipet, Hyderabad, 500075, Telangana, India
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3
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Shetgaonkar SE, Jothish S, Dohi T, Singh FV. Iodine(V)-Based Oxidants in Oxidation Reactions. Molecules 2023; 28:5250. [PMID: 37446912 DOI: 10.3390/molecules28135250] [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: 06/15/2023] [Revised: 07/04/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
The chemistry of hypervalent iodine reagents has now become quite valuable due to the reactivity of these compounds under mild reaction conditions and their resemblance in chemical properties to transition metals. The environmentally friendly nature of these reagents makes them suitable for Green Chemistry. Reagents with a dual nature, such as iodine(III) reagents, are capable electrophiles, while iodine(V) reagents are known for their strong oxidant behavior. Various iodine(V) reagents including IBX and DMP have been used as oxidants in organic synthesis either in stoichiometric or in catalytic amounts. In this review article, we describe various oxidation reactions induced by iodine(V) reagents reported in the past decade.
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Affiliation(s)
- Samata E Shetgaonkar
- School of Chemical Sciences, Goa University, Taleigao Plateau 403206, Goa, India
| | - Subhiksha Jothish
- Chemistry Division, School of Advanced Sciences (SAS), Vellore Institute of Technology, Chennai 600127, Tamil Nadu, India
| | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-0058, Shiga, Japan
| | - Fateh V Singh
- Chemistry Division, School of Advanced Sciences (SAS), Vellore Institute of Technology, Chennai 600127, Tamil Nadu, India
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4
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Synthesis and bioactivity evaluation of 5,6-epoxynorcantharidin mono-amide and imide derivatives. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02905-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Venkata Durga Nageswar Y, Ramesh K, Rakhi K. IBX-Mediated Organic Transformations in Heterocyclic Chemistry-A Decade Update. Front Chem 2022; 10:841751. [PMID: 35295969 PMCID: PMC8919869 DOI: 10.3389/fchem.2022.841751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/11/2022] [Indexed: 11/22/2022] Open
Abstract
O-Iodoxybenzoic acid (IBX) is a very mild and efficient hypervalent iodine synthetic reagent useful to carry out several selective oxidations. The present review highlights research reports on IBX-assisted transformations in heterocyclic derivatives, particularly from 2010 onward.
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Affiliation(s)
- Yadavalli Venkata Durga Nageswar
- Retired Chief Scientist, Indian Institute of Chemical Technology-IICT, Hyderabad, India
- *Correspondence: Yadavalli Venkata Durga Nageswar,
| | - Katla Ramesh
- Organic Chemistry Laboratory, Foreign Visiting Professor, School of Chemistry and Food, Federal University of Rio Grande-FURG, Rio Grande, Brazil
| | - Katla Rakhi
- Organic Catalysis and Biocatalysis Laboratory-LACOB, Federal University of Grande Dourados-UFGD, Dourados, Brazil
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6
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Abstract
We developed an electrochemical carboamidation sequence that affords either cyclic β-amidoamine products via direct functionalization or linear hydroxybisamide products via a ring opening pathway. The reaction pathway was dependent on the nature of the N-acyl activating group, with carbamate groups favoring direct isocyanide addition to the N-acyliminium ion intermediate and the benzoyl activating group favoring the ring opening-functionalization pathway. Both protocols are one-pot reaction sequences, have general applicability, and lead to peptide-like products of greatly increased molecular complexity.
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Affiliation(s)
- Feijun Wang
- Center for Integrative Chemical Biology and Drug Discovery, UNC Eshelman School of Pharmacy, 125 Mason Farm Road, Chapel Hill, North Carolina 27599, United States
| | - Kevin J Frankowski
- Center for Integrative Chemical Biology and Drug Discovery, UNC Eshelman School of Pharmacy, 125 Mason Farm Road, Chapel Hill, North Carolina 27599, United States
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7
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Mao ZY, Nie XD, Feng YM, Si CM, Wei BG, Lin GQ. Cu(OTf) 2 catalyzed Ugi-type reaction of N, O-acetals with isocyanides for the synthesis of pyrrolidinyl and piperidinyl 2-carboxamides. Chem Commun (Camb) 2021; 57:9248-9251. [PMID: 34519320 DOI: 10.1039/d1cc03113a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Cu(OTf)2 catalyzed Ugi-type reactions of N,O-acetals with isocyanides have been described for the synthesis of pyrrolidinyl and piperidinyl 2-carboxamides. 4-Hydroxy-5-substituted-prolinamides can be obtained in high diastereoselectivities (2,4-cis/trans > 19 : 1) and a stereoselective model was proposed for 2,4-cis selectivity. Moreover, 4-F-VH 032, a novel analog of the VHL ligand, was conveniently obtained by utilizing the present method.
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Affiliation(s)
- Zhuo-Ya Mao
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, 200433, China.
| | - Xiao-Di Nie
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, 200433, China.
| | - Yi-Man Feng
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, 200433, China.
| | - Chang-Mei Si
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, 200433, China.
| | - Bang-Guo Wei
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, 200433, China.
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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8
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Nadirova MA, Khanova AV, Zubkov FI, Mertsalov DF, Kolesnik IA, Petkevich SK, Potkin VI, Shetnev AA, Presnukhina SI, Sinelshchikova AA, Grigoriev MS, Zaytsev VP. Cascade of the Hinsberg / IMDAF reactions in the synthesis 2-arylsulfonyl-3a,6-epoxyisoindoles and 4a,7-epoxyisoquinolines in water. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Flores-Reyes JC, Islas-Jácome A, González-Zamora E. The Ugi three-component reaction and its variants. Org Chem Front 2021. [DOI: 10.1039/d1qo00313e] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A broad variety of α-aminoamide-based compounds have been synthesized via the three-component version of the Ugi reaction (U-3CR) or by any of its variants (Ugi-Zhu-3CR, Orru-3CR, Ugi-4C-3CR, Ugi-Joullié-3CR, GBB-3CR, Ugi-Reissert-3CR, and so on).
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Affiliation(s)
- Julio César Flores-Reyes
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C.P. 09340, Ciudad de Mexico
| | - Alejandro Islas-Jácome
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C.P. 09340, Ciudad de Mexico
| | - Eduardo González-Zamora
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C.P. 09340, Ciudad de Mexico
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10
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Zhang C, Qiu Y, Zhang J, Chen L, Xu S, Guo H, Luo J, Tan Y. CAN‐mediated Oxidative Coupling‐Reaction of Xanthenes with Enaminones. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Changyuan Zhang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Yun Qiu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Jiantao Zhang
- College of Chemistry Guangdong University of Petrochemical Technology Guandu Road Maoming 525000 P. R. China
| | - Lulu Chen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Shuting Xu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Huosheng Guo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Jian Luo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Yao Tan
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
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11
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Nazeri MT, Farhid H, Mohammadian R, Shaabani A. Cyclic Imines in Ugi and Ugi-Type Reactions. ACS COMBINATORIAL SCIENCE 2020; 22:361-400. [PMID: 32574488 DOI: 10.1021/acscombsci.0c00046] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ugi four-component reactions (U-4CRs) are widely recognized as being highly efficient for the synthesis of pseudopeptides. However, the products of these reactions are not so interesting as drug candidates because they are not conformationally restricted enough for a potent interaction with biological targets. One possible way to overcome this problem is to replace amine and oxo components in the U-4CRs with cyclic imines in so-called Joullié-Ugi three-component reactions (JU-3CRs). This approach provides a robust single-step route to peptide moieties connected to N-heterocyclic motifs that are found as core skeletons in many natural products and pharmaceutical compounds. JU-3CRs also provide much better diastereoselectivity than their four-component analogues. We survey here the redesign of many synthetic routes for the efficient preparation of a wide variety of three-, five-, six-, and seven-membered heterocyclic compounds connected to the peptide backbone. Additionally, in the Ugi reactions based on the cyclic imines, α-acidic isocyanides, or azides can be replaced with normal isocyanides or acids, respectively, leading to the synthesis of N-heterocycles attached to oxazoles or tetrazoles, which are of great pharmaceutical significance. This Review includes all research articles related to Ugi reactions based on the cyclic imines to the year 2020 and will be useful to chemists in designing novel synthetic routes for the synthesis of individual and combinatorial libraries of natural products and drug-like compounds.
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Affiliation(s)
- Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P.O. Box 19396-4716, 1983963113 Tehran, Iran
| | - Hassan Farhid
- Faculty of Chemistry, Shahid Beheshti University, G. C., P.O. Box 19396-4716, 1983963113 Tehran, Iran
| | - Reza Mohammadian
- Faculty of Chemistry, Shahid Beheshti University, G. C., P.O. Box 19396-4716, 1983963113 Tehran, Iran
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P.O. Box 19396-4716, 1983963113 Tehran, Iran
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12
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Kale A, Medishetti N, Nanubolu JB, Atmakur K. Hypervalent iodine promoted transformation of 4H-chromenes into dihydrofurans and 2H-chromenes. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1799013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ashok Kale
- Fluoro & Agro Chemicals Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR- Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - Nagaraju Medishetti
- Fluoro & Agro Chemicals Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR- Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - Jagadeesh Babu Nanubolu
- Academy of Scientific and Innovative Research, CSIR- Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
- Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - Krishnaiah Atmakur
- Fluoro & Agro Chemicals Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR- Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
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13
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Chipman A, Farshadfar K, Smith JA, Yates BF, Ariafard A. DFT-Based Comparison between Mechanistic Aspects of Amine and Alcohol Oxidation Mediated by IBX. J Org Chem 2019; 85:515-525. [DOI: 10.1021/acs.joc.9b02583] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Antony Chipman
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
| | - Kaveh Farshadfar
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
| | - Jason A. Smith
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
| | - Brian F. Yates
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
| | - Alireza Ariafard
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
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14
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Ambule MD, Tripathi S, Ghoshal A, Srivastava AK. IBX-mediated oxidative addition of isocyanides to cyclic secondary amines: total syntheses of alangiobussine and alangiobussinine. Chem Commun (Camb) 2019; 55:10872-10875. [PMID: 31433406 DOI: 10.1039/c9cc05215a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The present study describes a robust and general method for the synthesis of C(1)-carboxamides through IBX-mediated oxidative addition of isocyanides to tryptolines and 1,2,3,4-tetrahydroisoquinolines. In this transformation, IBX plays a dual role of an oxidant and Lewis acid to activate imine facilitating isocyanide addition. Detailed mechanistic investigations were performed by isotopic labeling and real-time NMR experiments. The method was utilized for the gram scale syntheses of two alkaloids alangiobussine and alangiobussinine in 63% and 45% overall yield, respectively.
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Affiliation(s)
- Mayur D Ambule
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow-226031, India.
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15
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Dong CP, Uematsu A, Kumazawa S, Yamamoto Y, Kodama S, Nomoto A, Ueshima M, Ogawa A. 2,4,6-Trihydroxybenzoic Acid-Catalyzed Oxidative Ugi Reactions with Molecular Oxygen via Homo- and Cross-Coupling of Amines. J Org Chem 2019; 84:11562-11571. [DOI: 10.1021/acs.joc.9b01422] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chun-ping Dong
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akinori Uematsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shun Kumazawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yuki Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Michio Ueshima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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16
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Uygur M, García Mancheño O. Visible light-mediated organophotocatalyzed C-H bond functionalization reactions. Org Biomol Chem 2019; 17:5475-5489. [PMID: 31115431 DOI: 10.1039/c9ob00834a] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Over the last decade, a variety of methodologies for the direct functionalization of C-H bonds have been developed. Among others, visible light photoredox reactions have recently emerged as one of the most efficient and highly selective processes for the direct introduction of a functionality into organic molecules. Easy reaction setups, as well as mild reaction conditions, make this approach superior to other methodologies applying transition metals or strong oxidants, in terms of both costs and substrate and functional group tolerance. In this review, the recent developments in organophotocatalyzed C-H bond functionalization reactions are presented.
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Affiliation(s)
- Mustafa Uygur
- Organic Chemistry Institute, Münster University, Corrensstr. 40, 48149 Münster, Germany.
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17
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More DA, Shinde GH, Shaikh AC, Muthukrishnan M. Oxone promoted dehydrogenative Povarov cyclization of N-aryl glycine derivatives: an approach towards quinoline fused lactones and lactams. RSC Adv 2019; 9:30277-30291. [PMID: 35530246 PMCID: PMC9072217 DOI: 10.1039/c9ra06212b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 09/17/2019] [Indexed: 11/21/2022] Open
Abstract
Oxone promoted intramolecular dehydrogenative imino Diels–Alder reaction (Povarov cyclization) of alkyne tethered N-aryl glycine esters and amides has been explored, thus affording biologically significant quinoline fused lactones and lactams.
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Affiliation(s)
- Devidas A. More
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Ganesh H. Shinde
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Aslam C. Shaikh
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - M. Muthukrishnan
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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18
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Džambaski Z, Bondžić BP. Dehydrogenative C(sp3)–H bond functionalization of tetrahydroisoquinolines mediated by organic oxidants under mild conditions. Org Biomol Chem 2019; 17:6420-6425. [DOI: 10.1039/c9ob01090d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
DDQ and IBX are effective SET oxidants of N-aryl-protected and unprotected THIQs. Mannich and Strecker type functionalizations ensued in an overall CDC reaction.
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Affiliation(s)
- Zdravko Džambaski
- Center for Chemistry
- ICTM institute
- University of Belgrade
- 11 000 Belgrade
- Serbia
| | - Bojan P. Bondžić
- Center for Chemistry
- ICTM institute
- University of Belgrade
- 11 000 Belgrade
- Serbia
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19
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Wang J, Sun Y, Jiang MH, Hu TY, Zhao YJ, Li X, Wang G, Hao K, Zhen L. Iminium Ion and N-Hydroxyimide as the Surrogate Components in DEAD-Promoted Oxidative Ugi Variant. J Org Chem 2018; 83:13121-13131. [PMID: 30351938 DOI: 10.1021/acs.joc.8b01868] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical metal-free oxidative Ugi-type three-component assembly has been achieved efficiently, employing a tertiary-amine-derived iminium ion as an imine surrogate, N-hydroxyimide as an acid surrogate, and DEAD as an oxidant. This dual-surrogate Ugi variant proceeded with a broad substrate scope and desired functional group tolerance, leading to a wide range of N-alkyl- N-acyl aminophthalimide and N-alkyl- N-acylaminosuccinimide derivatives in good isolated yields.
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Affiliation(s)
- Jiankun Wang
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Yilin Sun
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Mu-Han Jiang
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Tian-Yu Hu
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Yong-Jie Zhao
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Xin Li
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Guangji Wang
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Kun Hao
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
| | - Le Zhen
- Key Laboratory of Drug Metabolism and Pharmacokinetics , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , Jiangsu , China
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20
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Gini A, Uygur M, Rigotti T, Alemán J, García Mancheño O. Novel Oxidative Ugi Reaction for the Synthesis of Highly Active, Visible-Light, Imide-Acridinium Organophotocatalysts. Chemistry 2018; 24:12509-12514. [DOI: 10.1002/chem.201802830] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Andrea Gini
- Institute for Organic Chemistry; University of Regensburg; 93053 Regensburg Germany
| | - Mustafa Uygur
- Organic Chemistry Institute; University of Münster; 48149 Münster Germany
| | - Thomas Rigotti
- Organic Chemistry Department; Módulo 1; Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - José Alemán
- Organic Chemistry Department; Módulo 1; Universidad Autónoma de Madrid; 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - Olga García Mancheño
- Organic Chemistry Institute; University of Münster; 48149 Münster Germany
- Institute for Organic Chemistry; University of Regensburg; 93053 Regensburg Germany
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21
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Maity A, Hyun SM, Wortman AK, Powers DC. Oxidation Catalysis by an Aerobically Generated Dess-Martin Periodinane Analogue. Angew Chem Int Ed Engl 2018; 57:7205-7209. [PMID: 29665175 DOI: 10.1002/anie.201804159] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Indexed: 11/12/2022]
Abstract
Hypervalent iodine(V) reagents, such as Dess-Martin periodinane (DMP) and 2-iodoxybenzoic acid (IBX), are broadly useful oxidants in chemical synthesis. Development of strategies to generate these reagents from dioxygen (O2 ) would immediately enable use of O2 as a terminal oxidant in a broad array of substrate oxidation reactions. Recently we disclosed the aerobic synthesis of I(III) reagents by intercepting reactive oxidants generated during aldehyde autoxidation. In this work, aerobic oxidation of iodobenzenes is coupled with disproportionation of the initially generated I(III) compounds to generate I(V) reagents. The aerobically generated I(V) reagents exhibit substrate oxidation chemistry analogous to that of DMP. The developed aerobic generation of I(V) has enabled the first application of I(V) intermediates in aerobic oxidation catalysis.
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Affiliation(s)
- Asim Maity
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843, USA
| | - Sung-Min Hyun
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843, USA
| | - Alan K Wortman
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843, USA
| | - David C Powers
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843, USA
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22
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Maity A, Hyun SM, Wortman AK, Powers DC. Oxidation Catalysis by an Aerobically Generated Dess-Martin Periodinane Analogue. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804159] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Asim Maity
- Department of Chemistry; Texas A&M University; 3255 TAMU College Station TX 77843 USA
| | - Sung-Min Hyun
- Department of Chemistry; Texas A&M University; 3255 TAMU College Station TX 77843 USA
| | - Alan K. Wortman
- Department of Chemistry; Texas A&M University; 3255 TAMU College Station TX 77843 USA
| | - David C. Powers
- Department of Chemistry; Texas A&M University; 3255 TAMU College Station TX 77843 USA
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23
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Nappi M, He C, Whitehurst WG, Chappell BGN, Gaunt MJ. Selective Reductive Elimination at Alkyl Palladium(IV) by Dissociative Ligand Ionization: Catalytic C(sp 3 )-H Amination to Azetidines. Angew Chem Int Ed Engl 2018; 57:3178-3182. [PMID: 29380496 DOI: 10.1002/anie.201800519] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Indexed: 11/07/2022]
Abstract
A palladium(II)-catalyzed γ-C-H amination of cyclic alkyl amines to deliver highly substituted azetidines is reported. The use of a benziodoxole tosylate oxidant in combination with AgOAc was found to be crucial for controlling a selective reductive elimination pathway to the azetidines. The process is tolerant of a range of functional groups, including structural features derived from chiral α-amino alcohols, and leads to the diastereoselective formation of enantiopure azetidines.
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Affiliation(s)
- Manuel Nappi
- Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UK
| | - Chuan He
- Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UK
| | - William G Whitehurst
- Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UK
| | - Ben G N Chappell
- Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UK
| | - Matthew J Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UK
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24
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Nappi M, He C, Whitehurst WG, Chappell BGN, Gaunt MJ. Selective Reductive Elimination at Alkyl Palladium(IV) by Dissociative Ligand Ionization: Catalytic C(sp3
)−H Amination to Azetidines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800519] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Manuel Nappi
- Department of Chemistry; University of Cambridge; Lensfield Rd Cambridge CB2 1EW UK
| | - Chuan He
- Department of Chemistry; University of Cambridge; Lensfield Rd Cambridge CB2 1EW UK
| | | | - Ben G. N. Chappell
- Department of Chemistry; University of Cambridge; Lensfield Rd Cambridge CB2 1EW UK
| | - Matthew J. Gaunt
- Department of Chemistry; University of Cambridge; Lensfield Rd Cambridge CB2 1EW UK
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25
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Zhang Z, Zheng D, Wan Y, Zhang G, Bi J, Liu Q, Liu T, Shi L. Selective Cleavage of Inert Aryl C-N Bonds in N-Aryl Amides. J Org Chem 2018; 83:1369-1376. [PMID: 29302966 DOI: 10.1021/acs.joc.7b02880] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A highly selective, IBX-promoted reaction has been developed for the oxidative cleavage of inert C(aryl)-N bonds on secondary amides while leaving the C(carbonyl)-N bond unchanged. This metal-free reaction proceeds under mild conditions (HFIP/H2O, 25 °C), providing facile access to various useful primary amides, some of which would be otherwise unattainable using conventional aminolysis and hydrolysis approaches.
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Affiliation(s)
- Zhiguo Zhang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China.,Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University , Jilin, Changchun 130024, China
| | - Dan Zheng
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
| | - Yameng Wan
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
| | - Guisheng Zhang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
| | - Jingjing Bi
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
| | - Qingfeng Liu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
| | - Tongxin Liu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
| | - Lei Shi
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, Henan 453007, China
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26
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Gayen KS, Chatterjee N, Khamarui S, Tarafdar PK. Recent Advances in Iodosobenzene-Mediated Construction of Heterocyclic Scaffolds: Transition-Metal-Free Approaches and Scope. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701306] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | | | - Saikat Khamarui
- Government General Degree College at Kalna; University of Burdwan; -1 India
| | - Pradip Kumar Tarafdar
- Indian Institute of Science Education and Research (IISER, Kolkata); West Bengal India
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27
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Facile Chemical Access to Biologically Active Norcantharidin Derivatives from Biomass. Molecules 2017; 22:molecules22122210. [PMID: 29231880 PMCID: PMC6149738 DOI: 10.3390/molecules22122210] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 11/30/2017] [Accepted: 12/07/2017] [Indexed: 01/21/2023] Open
Abstract
Reductive amination of 2,5-diformylfuran (DFF) was used to implement the transition from bio-derived 5-hydroxymethylfurfural (HMF) to pharmaceuticals. The synthesized bis(aminomethyl)furans were utilized as building blocks for the construction of new derivatives with structural cores of naturally occurring biologically active compounds. Using the one-pot procedure, which included the Diels–Alder reaction followed by hydrogenation of the double bond, bio-derived analogues of the anticancer drug norcantharidin were obtained. The cyclization process was diastereoselective, and resulted in the formation of tricyclic products with the endo configuration. Analysis of cytotoxycity for the resulting tricyclic amine-containing compounds showed an increase of anticancer activity as compared with the unsubstituted norcantharimide.
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28
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Wang J, Sun Y, Wang G, Zhen L. DEAD-Promoted Oxidative Ugi-Type Reaction Including an Unprecedented Ugi Amidation Assisted by Dicarboxylic Acids. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701323] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiankun Wang
- Key Laboratory of Drug Metabolism and Pharmacokinetics; China Pharmaceutical University; 24 Tongjia Xiang 210009 Nanjing Jiangsu China
| | - Yilin Sun
- Key Laboratory of Drug Metabolism and Pharmacokinetics; China Pharmaceutical University; 24 Tongjia Xiang 210009 Nanjing Jiangsu China
| | - Guangji Wang
- Key Laboratory of Drug Metabolism and Pharmacokinetics; China Pharmaceutical University; 24 Tongjia Xiang 210009 Nanjing Jiangsu China
| | - Le Zhen
- Key Laboratory of Drug Metabolism and Pharmacokinetics; China Pharmaceutical University; 24 Tongjia Xiang 210009 Nanjing Jiangsu China
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29
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Functional group transformation from amines to aldehydes via IBX oxidation. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0313-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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30
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Singh K, Kaur A, Mithu VS, Sharma S. Metal-Free Organocatalytic Oxidative Ugi Reaction Promoted by Hypervalent Iodine. J Org Chem 2017; 82:5285-5293. [DOI: 10.1021/acs.joc.7b00594] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Karandeep Singh
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, India 313001
- Department of Chemistry, U.G.C. Centre of Advance Studies
in Chemistry, Guru Nanak Dev University, Amritsar, India 143005
| | - Amanpreet Kaur
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India 110016
| | - Venus Singh Mithu
- Department of Chemistry, U.G.C. Centre of Advance Studies
in Chemistry, Guru Nanak Dev University, Amritsar, India 143005
| | - Siddharth Sharma
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, India 313001
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31
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Zhen L, Wang J, Xu QL, Sun H, Wen X, Wang G. Direct Intermolecular C–H Functionalization Triggered by 1,5-Hydride Shift: Access to N-Arylprolinamides via Ugi-Type Reaction. Org Lett 2017; 19:1566-1569. [DOI: 10.1021/acs.orglett.7b00378] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Le Zhen
- Key Laboratory of Drug Metabolism
and Pharmacokinetics and ‡Jiangsu Key Laboratory
of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, Jiangsu, China
| | - Jiankun Wang
- Key Laboratory of Drug Metabolism
and Pharmacokinetics and ‡Jiangsu Key Laboratory
of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, Jiangsu, China
| | - Qing-Long Xu
- Key Laboratory of Drug Metabolism
and Pharmacokinetics and ‡Jiangsu Key Laboratory
of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, Jiangsu, China
| | - Hongbin Sun
- Key Laboratory of Drug Metabolism
and Pharmacokinetics and ‡Jiangsu Key Laboratory
of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, Jiangsu, China
| | - Xiaoan Wen
- Key Laboratory of Drug Metabolism
and Pharmacokinetics and ‡Jiangsu Key Laboratory
of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, Jiangsu, China
| | - Guangji Wang
- Key Laboratory of Drug Metabolism
and Pharmacokinetics and ‡Jiangsu Key Laboratory
of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, Jiangsu, China
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32
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Hati S, Sen S. Cerium Chloride Catalyzed, 2-Iodoxybenzoic Acid Mediated Oxidative Dehydrogenation of Multiple Heterocycles at Room Temperature. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601419] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Santanu Hati
- Department of Chemistry; School of Natural Sciences; Shiv Nadar University; Chithera 201314 Dadri Gautam Buddha Nagar, Uttar Pradesh India
| | - Subhabrata Sen
- Department of Chemistry; School of Natural Sciences; Shiv Nadar University; Chithera 201314 Dadri Gautam Buddha Nagar, Uttar Pradesh India
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33
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Griffiths RJ, Burley GA, Talbot EPA. Transition-Metal-Free Amine Oxidation: A Chemoselective Strategy for the Late-Stage Formation of Lactams. Org Lett 2017; 19:870-873. [PMID: 28177642 DOI: 10.1021/acs.orglett.7b00021] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A metal-free strategy for the formation of lactams via selective oxidation of cyclic secondary and tertiary amines is described. Molecular iodine facilitates both chemoselective and regioselective oxidation of C-H bonds directly adjacent to a cyclic amine. The mild conditions, functional group tolerance, and substrate scope are demonstrated using a suite of diverse small molecule cyclic amines, including clinically approved drug scaffolds.
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Affiliation(s)
- Robert J Griffiths
- GlaxoSmithKline Medicines Research Centre , Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K.,Department of Pure and Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Glenn A Burley
- Department of Pure and Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Eric P A Talbot
- GlaxoSmithKline Medicines Research Centre , Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
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34
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Gini A, Brandhofer T, Mancheño OG. Recent progress in mild Csp3–H bond dehydrogenative or (mono-) oxidative functionalization. Org Biomol Chem 2017; 15:1294-1312. [DOI: 10.1039/c6ob02474b] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review summarizes recent advances in mild and green dehydrogenative and mono-oxidative Csp3–H bond functionalization reactions, considering both new approaches and the re-elaboration of known methodologies.
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Affiliation(s)
- Andrea Gini
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
| | - Tobias Brandhofer
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
| | - Olga García Mancheño
- Institute for Organic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
- Straubing Center of Science for Renewable Resources
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35
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de Graaff C, Oppelaar B, Péruch O, Vande Velde CML, Bechi B, Turner NJ, Ruijter E, Orru RVA. Stereoselective Monoamine Oxidase-Catalyzed Oxidative Aza-Friedel-Crafts Reactions ofmeso-Pyrrolidines in Aqueous Buffer. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600038] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Abstract
Pyrrolidine and 1,2,3,4-tetrahydroisoquinoline (THIQ) undergo redox-neutral α-amidation with concurrent N-alkylation upon reaction with aromatic aldehydes and isocyanides. Reactions are promoted by acetic acid and represent a new variant of the Ugi reaction.
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Affiliation(s)
- Zhengbo Zhu
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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