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Park JU, Huang LZ, Cho HJ, Park BY, Kim JH. One-Pot Synthesis of Unprotected 2-Acylpyrroles from 1,2,3 -Triazoles and 2-Hydroxymethylallyl Carbonates. J Org Chem 2023; 88:585-593. [PMID: 36538655 DOI: 10.1021/acs.joc.2c02602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An efficient, tandem one-pot approach to synthesize multisubstituted 2-acylpyrroles from readily prepared N-tosyl triazoles and 2-hydroxymethylallyl carbonates is reported. The reaction proceeds via Rh(II)-catalyzed O-H insertion, [3,3]-sigmatropic rearrangement, Pd(0)-catalyzed oxidative addition, intramolecular cyclization, DBU-promoted E1cB elimination, double bond isomerization, and aromatization, enabling the disconnection and formation of multiple bonds in one reactor. The approach represents a highly regioselective way to access di-, tri-, and tetra-substituted NH pyrroles with high efficiency.
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Affiliation(s)
- Jong-Un Park
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - Liang-Zhu Huang
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea.,College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Ho-Jun Cho
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - Boyoung Y Park
- College of Pharmacy, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
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2
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Sakharov PA, Rostovskii NV, Khlebnikov AF, Novikov MS. Copper(II)-Catalyzed (3+2) Cycloaddition of 2 H-Azirines to Six-Membered Cyclic Enols as a Route to Pyrrolo[3,2- c]quinolone, Chromeno[3,4- b]pyrrole, and Naphtho[1,8- ef]indole Scaffolds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27175681. [PMID: 36080448 PMCID: PMC9457675 DOI: 10.3390/molecules27175681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/30/2022]
Abstract
A method for the [2+3] pyrroline annulation to the six-membered non-aromatic enols using 3-aryl-2H-azirines as annulation agents is developed in the current study. The reaction proceeds as a formal (3+2) cycloaddition via the N1-C2 azirine bond cleavage and is catalyzed by both Cu(II) and Cu(I) compounds. The new annulation method can be applied to prepare pyrrolo[3,2-c]quinoline, chromeno[3,4-b]pyrrole, and naphtho[1,8-ef]indole derivatives in good to excellent yields from enols of the quinolin-2-one, 2H-chromen-2-one, and 1H-phenalen-1-one series.
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3
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4
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Geng X, Wang C, Huang C, Bao Y, Zhao P, Zhou Y, Wu YD, Feng LL, Wu AX. Employing TosMIC as a C1N1 “Two-Atom Synthon” in Imidazole Synthesis by Neighboring Group Assistance Strategy. Org Lett 2019; 22:140-144. [DOI: 10.1021/acs.orglett.9b04060] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Can Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chun Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yang Bao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | | | - Ling-ling Feng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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5
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Tsukamoto H, Hanada S, Nomura Y, Doi T. Total Synthesis of Spiromamakone A and Structure Revision of Spiropreussione A. J Org Chem 2018; 83:9430-9441. [DOI: 10.1021/acs.joc.8b01075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hirokazu Tsukamoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shogo Hanada
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yumi Nomura
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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6
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Bayat M, Amiri Z. Recent Developments in Acenaphthoquinone-Based Multicomponent Reactions: Synthesis of Spiroacenaphthylene Compounds. Top Curr Chem (Cham) 2018; 376:26. [DOI: 10.1007/s41061-018-0204-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 05/10/2018] [Indexed: 10/14/2022]
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7
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Mehrabi H, Esfandiarpour Z, Davodian T. The reaction of active methylene compounds with carbon disulfide in the presence of arylidenemalononitriles: synthesis of 6-amino-2-(4,4-dimethyl/dihydro-2,6-dioxocyclohexylidene)-4-aryl-4H-1,3-dithiine-5-carbonitrile derivatives. J Sulphur Chem 2018. [DOI: 10.1080/17415993.2017.1405959] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Hossein Mehrabi
- Department of Chemistry, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | | | - Tayebeh Davodian
- Department of Chemistry, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
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8
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Wang ZP, He Y, Shao PL. Transition-metal-free synthesis of polysubstituted pyrrole derivatives via cyclization of methyl isocyanoacetate with aurone analogues. Org Biomol Chem 2018; 16:5422-5426. [DOI: 10.1039/c8ob01558a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A transition-metal-free, operationally simple and atom-economic protocol that converts isocyanoacetates and aurones to 2,3,4-trisubstituted pyrroles catalyzed by NaOH was presented.
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Affiliation(s)
- Zhi-Peng Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- Chongqing University
- Chongqing 401331
- People's Republic of China
| | - Yun He
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- Chongqing University
- Chongqing 401331
- People's Republic of China
| | - Pan-Lin Shao
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- Chongqing University
- Chongqing 401331
- People's Republic of China
- College of Innovation and Entrepreneurship
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9
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Saraiah B, Gautam V, Acharya A, Pasha MA, Hiriyakkanavar I. One-Pot Synthesis of 2-(Aryl/Alkyl)amino-3-cyanobenzo[b
]thiophenes and Their Hetero-Fused Analogues by Pd-Catalyzed Intramolecular Oxidative C-H Functionalization/Arylthiolation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700963] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Bonagiri Saraiah
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road 560001 Bangalore India
| | - Vibha Gautam
- New Chemistry Unit; Central College Campus; Jawaharlal Nehru Centre for Advanced Scientific Research; Jakkur 560064 Bangalore India
| | - Anand Acharya
- New Chemistry Unit; Central College Campus; Jawaharlal Nehru Centre for Advanced Scientific Research; Jakkur 560064 Bangalore India
| | - Mohamed A. Pasha
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road 560001 Bangalore India
| | - Ila Hiriyakkanavar
- New Chemistry Unit; Central College Campus; Jawaharlal Nehru Centre for Advanced Scientific Research; Jakkur 560064 Bangalore India
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10
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Thimmarayaperumal S, Shanmugam S. Base-Promoted Selective Synthesis of 2 H-Pyranones and Tetrahydronaphthalenes via Domino Reactions. ACS OMEGA 2017; 2:4900-4910. [PMID: 31457769 PMCID: PMC6641896 DOI: 10.1021/acsomega.7b00627] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 06/29/2017] [Indexed: 06/10/2023]
Abstract
A highly efficient domino protocol has been developed for the synthesis of 6-aryl-4-(methylthio/amine-1-yl)-2-oxo-2H-pyran-3-carbonitriles and 4-aryl-2-(amine-1-yl)-5,6,7,8-tetrahydronaphthalene-1-carbonitriles from simple and readily available α-aroylketene dithioacetals, malononitrile, secondary amines, and cyclohexanone. This elegant domino process involved consecutive addition-elimination, intramolecular cyclization, and ring opening and closing sequences. Notably, in situ generated 2-imino-4-(methylthio/amine-1-yl)-6-aryl-2H-pyran-3-carbonitrile plays multiple roles in the construction of various novel polyaromatic hydrocarbons.
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11
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Aitha A, Payili N, Rekula SR, Yennam S, Anireddy JS. ′′One-Pot′′ Selective Synthesis of 3,4-Disubstituted Pyrroles and Benzo[f]indole-4,9-diones from 1,3-Indanedione, Aromatic Aldehydes and TosMIC. ChemistrySelect 2017. [DOI: 10.1002/slct.201700997] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anjaiah Aitha
- Department of Medicinal Chemistry; Chemistry Services, GVK Biosciences Pvt. Ltd. Survey Nos: 125 (part) & 126, IDA Mallapur, Hyderabad-; 500076 Telangana India
- Centre for Chemical Sciences & Technology, Institute of Science and Technology; Jawaharlal Nehru Technological University, Kukatpally, Hyderabad; 500072 Telangana India
| | - Nagaraju Payili
- Department of Medicinal Chemistry; Chemistry Services, GVK Biosciences Pvt. Ltd. Survey Nos: 125 (part) & 126, IDA Mallapur, Hyderabad-; 500076 Telangana India
| | - Santhosh Reddy Rekula
- Department of Medicinal Chemistry; Chemistry Services, GVK Biosciences Pvt. Ltd. Survey Nos: 125 (part) & 126, IDA Mallapur, Hyderabad-; 500076 Telangana India
| | - Satyanarayana Yennam
- Department of Medicinal Chemistry; Chemistry Services, GVK Biosciences Pvt. Ltd. Survey Nos: 125 (part) & 126, IDA Mallapur, Hyderabad-; 500076 Telangana India
| | - Jaya Shree Anireddy
- Centre for Chemical Sciences & Technology, Institute of Science and Technology; Jawaharlal Nehru Technological University, Kukatpally, Hyderabad; 500072 Telangana India
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12
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Acharya A, Gautam V, Ila H. Synthesis of Thieno-Fused Five- and Six-Membered Nitrogen and Oxygen Heterocycles via Intramolecular Heteroannulation of 4,5-Substituted 3-Amino or 3-Hydroxy 2-Functionalized Thiophenes. J Org Chem 2017; 82:7920-7938. [DOI: 10.1021/acs.joc.7b01153] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Anand Acharya
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Vibha Gautam
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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13
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Zhang L, Zhang X, Lu Z, Zhang D, Xu X. Accessing benzo[f]indole-4,9-diones via a ring expansion strategy: silver-catalyzed tandem reaction of tosylmethyl isocyanide (TosMIC) with 2-methyleneindene-1,3-diones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.10.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Tsukamoto H, Hanada S, Kumasaka K, Kagaya N, Izumikawa M, Shin-ya K, Doi T. Synthesis of Spiromamakone A Benzo Analogues via Double Oxa-Michael Addition of 1,8-Dihydroxynaphthalene. Org Lett 2016; 18:4848-4851. [DOI: 10.1021/acs.orglett.6b02328] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hirokazu Tsukamoto
- Graduate
School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shogo Hanada
- Graduate
School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Koichi Kumasaka
- Graduate
School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Noritaka Kagaya
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - Miho Izumikawa
- Japan Biological Informatics Consortium (JBIC), 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - Kazuo Shin-ya
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - Takayuki Doi
- Graduate
School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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15
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Yugandar S, Konda S, Parameshwarappa G, Ila H. One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles via [2 + 2 + 1] Cycloannulation of 1,3-Bishet(aryl)-monothio-1,3-diketones, α-Substituted Methylamines and Sodium Nitrite through α-Nitrosation of Enaminones. J Org Chem 2016; 81:5606-22. [PMID: 27194455 DOI: 10.1021/acs.joc.6b00938] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient one-pot synthesis of a series of diversely functionalized trisubstituted 4(5)het(aroyl)-2,5(4)-het(aryl)/alkylimidazoles from readily available 1,3-bishet(aryl)monothio-1,3-diketones has been reported. This novel sequential one-pot, three step protocol, wherein three new carbon nitrogen bonds are formed in contiguous fashion, involves in situ generation of enaminones by reaction of monothio-1,3-diketones with α-substituted methylamines, followed by their α-nitrosation with sodium nitrite and subsequent base mediated intramolecular heterocyclization of the resulting α-hydroxyiminoimines to trisubstituted imidazoles in high yields under mild conditions. These newly prepared 4(5)-het(aroyl)-5(4)-het(aryl)/alkylimidazoles are shown to exist as tautomeric mixture, however, their subsequent alkylation with methyl iodide in the presence of potassium carbonate affords 1-N-methy-2,5-bishet(aryl)-4-het(aroyl)imidazoles in highly regioselective fashion in most of the cases. Synthesis of few 4(5)-(2-hydroxyphenyl)-2,5(4)-substituted imidazoles, which are known to be good coordinating ligands, has also been reported. A probable mechanism for the formation of these imidazoles from hydroxyiminoimine intermediates has also been suggested.
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Affiliation(s)
- S Yugandar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
| | - S Konda
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
| | - G Parameshwarappa
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
| | - H Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
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16
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Chen J, Guo W, Wang Z, Hu L, Chen F, Xia Y. Unexpected Role of p-Toluenesulfonylmethyl Isocyanide as a Sulfonylating Agent in Reactions with α-Bromocarbonyl Compounds. J Org Chem 2016; 81:5504-12. [PMID: 27267422 DOI: 10.1021/acs.joc.6b00844] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiajia Chen
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wei Guo
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhenrong Wang
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Lin Hu
- Department
of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110, United States
| | - Fan Chen
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuanzhi Xia
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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17
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Bode ML, Gravestock D, Rousseau AL. Synthesis, Reactions and Uses of Isocyanides in Organic Synthesis. An Update. ORG PREP PROCED INT 2016. [DOI: 10.1080/00304948.2016.1138072] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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18
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Yugandar S, Konda S, Ila H. Amine Directed Pd(II)-Catalyzed C–H Activation-Intramolecular Amination of N-Het(aryl)/Acyl Enaminonitriles and Enaminones: An Approach towards Multisubstituted Indoles and Heterofused Pyrroles. J Org Chem 2016; 81:2035-52. [DOI: 10.1021/acs.joc.5b02902] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Somaraju Yugandar
- New Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Jakkur, Bangalore-560064, India
| | - Saidulu Konda
- New Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Jakkur, Bangalore-560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Jakkur, Bangalore-560064, India
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19
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Affiliation(s)
- Lin Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jinhuan Dong
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
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20
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Sadjadi S, Heravi MM, Nazari N. Isocyanide-based multicomponent reactions in the synthesis of heterocycles. RSC Adv 2016. [DOI: 10.1039/c6ra02143c] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In this review, we update our previous presentation, underscoring the recent applications of isocyanides as privileged synthons in the synthesis of various heterocyclic compounds, especially focused on those synthesizedviamulticomponent reactions.
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Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department
- Faculty of Petrochemicals
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
| | - Majid M. Heravi
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | - Niousha Nazari
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
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21
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22
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Acharya A, Vijay Kumar S, Saraiah B, Ila H. One-Pot Synthesis of Functionalized Benzo[b]thiophenes and Their Hetero-Fused Analogues via Intramolecular Copper-Catalyzed S-Arylation of In Situ Generated Enethiolates. J Org Chem 2015; 80:2884-92. [DOI: 10.1021/acs.joc.5b00032] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Anand Acharya
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - S. Vijay Kumar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B. Saraiah
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H. Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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23
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Yu FC, Zhou B, Xu H, Li YM, Lin J, Yan SJ, Shen Y. Three-component synthesis of functionalized pyrrolo[3,4-c]quinolin-1-ones by an unusual reductive cascade reaction. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.100] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Kaur T, Wadhwa P, Sharma A. Arylsulfonylmethyl isocyanides: a novel paradigm in organic synthesis. RSC Adv 2015. [DOI: 10.1039/c5ra07876h] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
p-Tosylmethyl isocyanide (TosMIC), an α-acidic isocyanide has emerged as a privileged reagent to access biologically relevant fused heterocycles and some natural products like (−)-ushikulide A, variolin B, porphobilinogen and mansouramycin B.
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Affiliation(s)
- Tanpreet Kaur
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Preeti Wadhwa
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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25
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Acharya A, Parameshwarappa G, Saraiah B, Ila H. Sequential One-Pot Synthesis of Tri- and Tetrasubstituted Thiophenes and Fluorescent Push-Pull Thiophene Acrylates Involving (Het)aryl Dithioesters as Thiocarbonyl Precursors. J Org Chem 2014; 80:414-27. [PMID: 25478685 DOI: 10.1021/jo502429c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient, one-pot three component synthesis of highly functionalized tri- and tetrasubstituted thiophenes has been reported involving (het)aryl dithioesters as thiocarbonyl precursors. Thus, sequential base mediated condensation of readily available (het)aryl active methylene ketones with (het)aryl dithioesters followed by S-alkylation of the resulting enethiolate salts with activated halomethylene compounds and concurrent intramolecular aldol-type condensation of S-alkylated compounds affords substituted thiophenes in excellent yields. The methodology has also been extended for the synthesis of highly fluorescent push-pull substituted thiophene-5-acrylates by using bromocrotonate as the activated methylene alkylating agent.
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Affiliation(s)
- Anand Acharya
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - G Parameshwarappa
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B Saraiah
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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26
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Wang Z, Xue L, He Y, Weng L, Fang L. Access to Functionalized 3H-Pyrrolo[2,3-c]quinolin-4(5H)-ones and Thieno[2,3-c]quinolin-4(5H)-ones via Domino Reaction of 4-Alkynyl-3-bromoquinolin-2(1H)-ones. J Org Chem 2014; 79:9628-38. [DOI: 10.1021/jo501753p] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zhiyong Wang
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Lijun Xue
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Yiyi He
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Licong Weng
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Ling Fang
- School
of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, P. R. China
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27
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Dong J, Pan L, Xu X, Liu Q. α-Trifluoromethyl-(indol-3-yl)methanols as trifluoromethylated C31,3-dipoles: [3+2] cycloaddition for the synthesis of 1-(trifluoromethyl)-cyclopenta[b]indole alkaloids. Chem Commun (Camb) 2014; 50:14797-800. [DOI: 10.1039/c4cc05895j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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28
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Vijay Kumar S, Saraiah B, Parameshwarappa G, Ila H, Verma GK. Synthesis of N-Functionalized/NH-Multisubstituted Indoles, Thienopyrroles, Pyrroloindoles, and Pyrazolopyrroles via Sequential One-Pot Base-Mediated and Copper-Catalyzed Inter- and Intramolecular Amination of 2-[2-Bromo(het)aryl]-3-(het)aryl-3-(methylthio)acrylonitriles. J Org Chem 2014; 79:7961-78. [DOI: 10.1021/jo501114a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- S. Vijay Kumar
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B. Saraiah
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - G. Parameshwarappa
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H. Ila
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Girijesh K. Verma
- Department
of Chemistry, Banaras Hindu University, Varanasi 221005, India
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29
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Zhang Y, Pan L, Xu X, Luo H, Liu Q. Tandem Michael addition/imine isomerization/intramolecular [3+2] cycloaddition for the regiospecific synthesis of cyclohepta[b]pyrroles. Chem Commun (Camb) 2014; 50:11039-42. [DOI: 10.1039/c4cc04665j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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30
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Liu X, Zhang L, Xu X, Wang S, Pan L, Zhang Q, Liu Q. Aerobic copper-catalyzed oxidative [6C+1C] annulation: an efficient route to seven-membered carbocycles. Chem Commun (Camb) 2014; 50:8764-7. [DOI: 10.1039/c4cc03095h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper-catalyzed aerobic tandem Michael addition–intramolecular radical cyclization–benzyl C(sp3)–H bond oxidation reaction of dicinnamoyl ketene dithioacetals and ethyl cyanoacetate was developed for the diastereoselective synthesis of seven-membered carbocycles.
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Affiliation(s)
- Xiao Liu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Lingjuan Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Shan Wang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Ling Pan
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Qian Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Qun Liu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
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31
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Roy B, Mondal D, Hatai J, Bandyopadhyay S. A highly efficient tandem [3 + 2] “click” cycloaddition/6-exo-cyclization strategy for the construction of triazole fused pyrazines. RSC Adv 2014. [DOI: 10.1039/c4ra12489h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The pharmaceutically important tetrahydro-[1,2,3]triazolopyrazine heterocyclic architecture has been synthesized via a concise tandem “click”/6-exo-dig cyclization strategy under mild conditions in mixed aqueous–organic media.
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Affiliation(s)
- Biswajit Roy
- Indian Institute of Science Education and Research (IISER) Kolkata
- , India
| | - Debashis Mondal
- Indian Institute of Science Education and Research (IISER) Kolkata
- , India
| | - Joydev Hatai
- Indian Institute of Science Education and Research (IISER) Kolkata
- , India
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