1
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Singh V, Kumar D, Mishra BK, Tiwari B. Iodobenzene-Catalyzed Synthesis of Fully Functionalized NH-Pyrazoles and Isoxazoles from α,β-Unsaturated Hydrazones and Oximes via 1,2-Aryl Shift. Org Lett 2024; 26:385-389. [PMID: 38150709 DOI: 10.1021/acs.orglett.3c04057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
An iodine(III)-catalyzed general method for the synthesis of fully functionalized NH-pyrazoles and isoxazoles from α,β-unsaturated hydrazones and oximes, respectively, via cyclization/1,2-aryl shift/aromatization/detosylation, has been developed. The reaction progresses through an anti-Baldwin 5-endo-trig cyclization. It gives direct access to an advanced intermediate for the preparation of valdecoxib and parecoxib, drugs used for COX-inhibition. In addition, a method for N-alkynylation of pyrazoles has also been developed in the presence of TIPS-EBX.
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Affiliation(s)
- Vikram Singh
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Deepak Kumar
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Bal Krishna Mishra
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Bhoopendra Tiwari
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
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2
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Roy S, Panja S, Sahoo SR, Chatterjee S, Maiti D. Enroute sustainability: metal free C-H bond functionalisation. Chem Soc Rev 2023; 52:2391-2479. [PMID: 36924227 DOI: 10.1039/d0cs01466d] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
The term "C-H functionalisation" incorporates C-H activation followed by its transformation. In a single line, this can be defined as the conversion of carbon-hydrogen bonds into carbon-carbon or carbon-heteroatom bonds. The catalytic functionalisation of C-H bonds using transition metals has emerged as an atom-economical technique to engender new bonds without activated precursors which can be considered as a major drawback while attempting large-scale synthesis. Replacing the transition-metal-catalysed approach with a metal-free strategy significantly offers an alternative route that is not only inexpensive but also environmentally benign to functionalize C-H bonds. Recently metal free synthetic approaches have been flourishing to functionalize C-H bonds, motivated by the search for greener, cost-effective, and non-toxic catalysts. In this review, we will highlight the comprehensive and up-to-date discussion on recent examples of ground-breaking research on green and sustainable metal-free C-H bond functionalisation.
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Affiliation(s)
- Sayan Roy
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Subir Panja
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Sumeet Ranjan Sahoo
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Sagnik Chatterjee
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India. .,Department of Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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3
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Feng J, Wang Y, Gao L, Yu Y, Baell JB, Huang F. Electrochemical Synthesis of Polysubstituted Sulfonated Pyrazoles via Cascade Intermolecular Condensation, Radical-Radical Cross Coupling Sulfonylation, and Pyrazole Annulation. J Org Chem 2022; 87:13138-13153. [PMID: 36166815 DOI: 10.1021/acs.joc.2c01609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemical synthesis of polysubstituted sulfonated pyrazoles from enaminones and sulfonyl hydrazides was established under metal-free, exogenous-oxidant-free, and mild conditions. By judicious choice of different electrochemical reaction conditions, NH2-functionalized enaminones or N,N-disubstituted enaminones can react with aryl/alkyl sulfonyl hydrazides to afford tetra- or trisubstituted sulfonated pyrazoles in moderate to good yields, respectively. The gram-scale electrochemical transformation demonstrated the efficiency and practicability of this synthetic strategy. In addition, the sulfonated NH-pyrazole can be obtained via the dissociation of the N-tosyl group. Mechanistic studies reveal that the electrochemical cascade reaction synthesis of polysubstituted sulfonated pyrazoles proceeded via the sequence of intermolecular condensation, radical-radical cross coupling sulfonylation, and pyrazole annulation.
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Affiliation(s)
- Jiajun Feng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yuzhi Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Luoyu Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yang Yu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jonathan B Baell
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Fei Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, PR China
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4
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Corrieri M, De Crescentini L, Mantellini F, Mari G, Santeusanio S, Favi G. Synthesis of Azacarbolines via PhIO 2-Promoted Intramolecular Oxidative Cyclization of α-Indolylhydrazones. J Org Chem 2021; 86:17918-17929. [PMID: 34871002 PMCID: PMC8689645 DOI: 10.1021/acs.joc.1c02217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
An unprecedented
synthesis of polysubstituted indole-fused pyridazines
(azacarbolines) from α-indolylhydrazones under oxidative conditions
using a combination of iodylbenzene (PhIO2) and trifluoroacetic
acid (TFA) has been developed. This transformation is conducted without
the need for transition metals, harsh conditions, or an inert atmosphere.
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Affiliation(s)
- Matteo Corrieri
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Lucia De Crescentini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Giacomo Mari
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Stefania Santeusanio
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
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5
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Wan H, Li D, Xia H, Yang L, Alhumade H, Yi H, Lei A. Synthesis of 1 H-indazoles by an electrochemical radical C sp2-H/N-H cyclization of arylhydrazones. Chem Commun (Camb) 2021; 58:665-668. [PMID: 34918720 DOI: 10.1039/d1cc04656j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of efficient and sustainable C-N bond-forming reactions to N-heterocyclic frameworks has been a long-standing interest in organic synthesis. In this work, we develop an electrochemical radical Csp2-H/N-H cyclization of arylhydrazones to 1H-indazoles. The electrochemical anodic oxidation approach was adopted to synthesize a variety of 1H-indazole derivatives in moderate to good yields. HFIP was not only employed as a solvent or the proton donor, but also can promote the formation of N free radicals. This synthetic methodology is operationally simple, and less expensive electrodes would be suitable for this chemistry.
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Affiliation(s)
- Hao Wan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Dongting Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Huadan Xia
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Liwen Yang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hong Yi
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, P. R. China.
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China. .,College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, P. R. China. .,King Abdulaziz University, Jeddah 21589, Saudi Arabia
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6
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Kumar A, Katiyar S, Kumar Jaiswal A, Kant R, Sashidhara KV. PIDA-mediated oxidative aromatic C N bond cleavage: Efficient methodology for the synthesis of 1,2-diaza-1,3-dienes under ambient conditions. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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7
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Reddy Kandimalla S, Prathima Parvathaneni S, Sabitha G, Subba Reddy BV. Recent Advances in Intramolecular Metal-Free Oxidative C-H Bond Aminations Using Hypervalent Iodine(III) Reagents. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801469] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Satheeshkumar Reddy Kandimalla
- Fluoro & Agrochemicals Division; CSIR-Indian Institute of Chemical Technology; 500-007 Hyderabad India
- Natural Products Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500 007 India
- Academy of Scientific and Innovative Research; 110025 New Delhi India
| | - Sai Prathima Parvathaneni
- Fluoro & Agrochemicals Division; CSIR-Indian Institute of Chemical Technology; 500-007 Hyderabad India
- Department of Chemistry; University of Texas at Austin; 78712 Austin, Texas United States
| | - Gowravaram Sabitha
- Natural Products Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500 007 India
- Academy of Scientific and Innovative Research; 110025 New Delhi India
| | - B. V. Subba Reddy
- Fluoro & Agrochemicals Division; CSIR-Indian Institute of Chemical Technology; 500-007 Hyderabad India
- Academy of Scientific and Innovative Research; 110025 New Delhi India
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8
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Tumula N, Palakodety RK, Balasubramanian S, Nakka M. Hypervalent Iodine(III)-Mediated Solvent-Free, Regioselective Synthesis of 3,4-Disubstituted 5-Imino-1,2,4-thiadiazoles and 2-Aminobenzo[d
]thiazoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800353] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nagaraju Tumula
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110025 India
| | - Radha Krishna Palakodety
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | - Sridhar Balasubramanian
- Center for X-ray Crystallography; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | - Mangarao Nakka
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
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9
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Zhou Y, Li D, Tang S, Sun H, Huang J, Zhu Q. PhI(OAc)2-mediated dearomative C–N coupling: facile construction of the spiro[indoline-3,2′-pyrrolidine] skeleton. Org Biomol Chem 2018; 16:2039-2042. [DOI: 10.1039/c8ob00343b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A facile construction of the spiro[indole-3,2′-pyrrolidine] skeleton, through diacetoxyiodobenzene (PIDA) mediated C–N bond-forming dearomatization of C3 sulfonamide linked indole derivatives, has been developed.
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Affiliation(s)
- Yali Zhou
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Dengke Li
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Shi Tang
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Hongwei Sun
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Jinbo Huang
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
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10
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Wei W, Wang Z, Yang X, Yu W, Chang J. Divergent Synthesis of 1H
-Indazoles and 1H
-Pyrazoles from Hydrazones via
Iodine-Mediated Intramolecular Aryl and sp
3
C-H Amination. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700824] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Wei
- College of Chemistry and Molecular Engineering; Zhengzhou University, Zhengzhou; Henan Province 450001 People's Republic of China
| | - Zhen Wang
- College of Chemistry and Molecular Engineering; Zhengzhou University, Zhengzhou; Henan Province 450001 People's Republic of China
| | - Xikang Yang
- College of Chemistry and Molecular Engineering; Zhengzhou University, Zhengzhou; Henan Province 450001 People's Republic of China
| | - Wenquan Yu
- College of Chemistry and Molecular Engineering; Zhengzhou University, Zhengzhou; Henan Province 450001 People's Republic of China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering; Zhengzhou University, Zhengzhou; Henan Province 450001 People's Republic of China
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11
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Tang L, Ma M, Zhang Q, Luo H, Wang T, Chai Y. Metal-Free Synthesis of Pyrazoles from 1,3-Diarylpropenes and Hydrazines via
Multiple Inter-/Intramolecular C-H Aminations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700196] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Li Tang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Minyan Ma
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Qi Zhang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Huan Luo
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Tao Wang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Yonghai Chai
- Key Laboratory of Applied Surface and Colloid Chemistry; MOE; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
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12
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Zhang Z, Huang Y, Huang G, Zhang G, Liu Q. [Bis-(trifluoroacetoxy)iodo]benzene-Mediated Oxidative Direct Amination C-N Bond Formation: Synthesis of 1H
-Indazoles. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2839] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhiguo Zhang
- 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 People's Republic of China
| | - Yuanyuan Huang
- 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 People's Republic of China
| | - Guoqing Huang
- Handan Purification Equipment Research Institute; Handan Hebei 056027 People's Republic of China
| | - Guisheng Zhang
- 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 People's Republic of China
| | - Qingfeng Liu
- 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 People's Republic of China
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13
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Mariappan A, Rajaguru K, Merukan Chola N, Muthusubramanian S, Bhuvanesh N. Hypervalent Iodine(III) Mediated Synthesis of 3-Substituted 5-Amino-1,2,4-thiadiazoles through Intramolecular Oxidative S–N Bond Formation. J Org Chem 2016; 81:6573-9. [DOI: 10.1021/acs.joc.6b01199] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arumugam Mariappan
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - Kandasamy Rajaguru
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - Noufal Merukan Chola
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - Shanmugam Muthusubramanian
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory, Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
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14
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Mariappan A, Rajaguru K, Santharam Roja S, Muthusubramanian S, Bhuvanesh N. Hypervalent Iodine Promoted Regioselective Oxidative C-H Functionalization: Synthesis ofN-(Pyridin-2-yl)benzo[d]thiazol-2-amines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501202] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Bianchi L, Carloni-Garaventa A, Maccagno M, Pani M, Petrillo G, Scapolla C, Tavani C. Synthesis of poly-functionalized pyrazoles and pyridazines from nitrobutadienes: an interesting dichotomy of practical relevance. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Abstract
Hypervalent iodine(III) reagents have been widely exploited in a diverse array of synthetic transformations. This chapter focuses on the general application of hypervalent iodine(III) reagents in the de novo synthesis and in the late stage functionalization of heterocyclic compounds.
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