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Chen S, Ji YS, Choi Y, Youn SW. One-Pot Three-Component Reaction for the Synthesis of 3,4-Dihydroquinazolines and Quinazolin-4(3 H)-ones. J Org Chem 2024; 89:6428-6443. [PMID: 38608000 DOI: 10.1021/acs.joc.4c00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
A highly efficient and straightforward one-pot synthesis of diversely substituted 3,4-dihydroquinazolines and quinazolin-4(3H)-ones has been achieved through a domino three-component assembly reaction of arenediazonium salts, nitriles, and bifunctional aniline derivatives. This new protocol involves three C-N bond formations through the initial formation of N-arylnitrilium intermediates from arenediazonium salts and nitriles, followed by the sequential nucleophilic addition and cyclization reactions with bifunctional anilines, leading to such N-heterocyclic compounds of biological and pharmacological importance. This method offers a simple, expedient, and robust approach with the use of amenable and easily accessible reactants/reagents under metal-free mild conditions, good functional group tolerance, and high efficiency. The synthetic applications were also demonstrated by derivatization of the products obtained from these processes and syntheses of a diverse range of valuable polycyclic N-heterocycles.
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Affiliation(s)
- Shiwei Chen
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yeong Shin Ji
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yuri Choi
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
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2
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Nanda SK. Asymmetric cascades of the π-allyl complex: a journey from transition-metal catalysis to metallaphotocatalysis. Chem Commun (Camb) 2023; 59:11298-11319. [PMID: 37670574 DOI: 10.1039/d3cc03010e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
The enantioselective catalytic cascade involving Tsuji-Trost allylation has provided a viable strategy for the construction of multiple asymmetric C-C and C-X centres and numerous methods have been developed around it for the synthesis of various vital scaffolds. The synthetic utility of this strategy was enhanced by replacing the customary allyl acetates with ethylene diacetates/dicarbonates, vinyl epoxides, vinyl oxetanes, vinyl ethylene carbonates, vinyl cyclopropanes, enynes, and dienes using transition-metal catalysis. One more milestone was achieved when metallaphotocatalysis provided the necessary platform for these cascades by using a cheaper metal. This review will provide a summary of these enantioselective catalytic cascades from 2015.
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Affiliation(s)
- Santosh Kumar Nanda
- Department of Chemistry, School of Applied Science, Centurion University, Bhubaneswar, Odisha, 752050, India.
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3
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Noh HC, Kim CE, Lee K, Kim D, Lee PH. Iridium-Catalyzed Regioselective B(4)-Alkenylation and B(3,5)-Dialkenylation of o-Carboranes. Org Lett 2023; 25:6643-6648. [PMID: 37646852 DOI: 10.1021/acs.orglett.3c02410] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Iridium(I)-catalyzed regioselective B(4)-alkenylation has been developed from o-carboranyl sulfoxonium ylides and alkynes through B(4)-H activation. The sequential B(4)- and B(6)-alkenylation afforded B(3,5)-dialkenylated o-carboranyl sulfoxonium ylides in one pot. Eventually, two alkenyl groups, the same or different, were introduced at positions 3 and 5 of the carborane. Sulfoxonium ylide used as a directing group remains available for further functionalization and is converted to B-alkenylated o-carboranyl trichloromethyl ketones.
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Affiliation(s)
- Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Cheol-Eui Kim
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
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4
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Han GU, Kim S, Han SH, Maeng C, Ko GH, Lee K, Noh HC, Lee PH. Iridium(III)-Catalyzed C-H Cyclization of Sulfoximines with Diazo Meldrum's Acids for the Synthesis of Cyclic Sulfoximines. J Org Chem 2023; 88:11702-11711. [PMID: 37427877 DOI: 10.1021/acs.joc.3c00984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Iridium(III)-catalyzed C-H cyclization of sulfoximines with diazo Meldrum's acid provided cyclic sulfoximines with a carbonyl group in good to excellent yields. These compounds were easily converted into unsubstituted and arylated sulfoximines. Moreover, the vinyl triflates obtained from the cyclic sulfoximines underwent palladium(II)-catalyzed cross-coupling reactions with a variety of aryl, arylalkynyl, and heteroatom (N and S) nucleophiles, affording a wide range of monosubstituted sulfoximines in high yields.
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Affiliation(s)
- Gi Uk Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Suhui Kim
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sang Hoon Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Chanyoung Maeng
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gi Hoon Ko
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
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5
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Park K, Han GU, Yoon S, Lee E, Noh HC, Lee K, Maeng C, Kim D, Lee PH. Iridium(III)-Catalyzed Regioselective B(4)-H Amination of o-Carboranes with Sufilimines. Org Lett 2023; 25:5989-5994. [PMID: 37540091 DOI: 10.1021/acs.orglett.3c02114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Iridium(III)-catalyzed regioselective B(4)-H amination is developed from the reaction of o-carborane acids with sulfilimines without any oxidants under mild conditions, which leads to a wide range of B(4)-H aminated o-carboranes in good yields with a broad substrate scope. Moreover, the selective B(3,6)-diamination reaction of the o-carborane acid was achieved. The present reaction is attractive from a practical point of view because dibenzothiophene is quantitatively recovered and reused.
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Affiliation(s)
- Kyeongna Park
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gi Uk Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sugyeong Yoon
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Eunseo Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Chanyoung Maeng
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
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6
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Jen H, Yoo EJ. Cascade cycloadditions of
N‐aromatic
zwitterions and allylic sulfonium ylides: Dual roles of the allylic sulfonium ylide in the cascade reaction. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12648] [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]
Affiliation(s)
- Hyundug Jen
- Department of Applied Chemistry Kyung Hee University Yongin Republic of Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry Kyung Hee University Yongin Republic of Korea
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7
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Maeng C, Yun Y, Son JY, Lee PH. Palladium‐Catalyzed Oxidative Cyclization of Azulene‐2‐carboxylic Acids with 1,3‐Dienes for the Synthesis of Alkenyl Azulenolactones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Jeong-Yu Son
- Kangwon National University KOREA (THE REPUBLIC OF)
| | - Phil Ho Lee
- Kangwon National University KOREA (THE REPUBLIC OF)
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8
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Kim YH, Kim DB, Jang SS, Youn SW. Pd-Catalyzed Regioselective Intramolecular Allylic C-H Amination of 1,1-Disubstituted Alkenyl Amines. J Org Chem 2022; 87:7574-7580. [PMID: 35549260 DOI: 10.1021/acs.joc.2c00781] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pd-Catalyzed intramolecular allylic C-H amination of 1,1-disubstituted alkenyl amines with various allylic tethers (X = O, NMs, CH2) was developed. This process allows for the divergent synthesis of 1,3-X,N-heterocycles through a regioselective allylic C-H cleavage and π-allylpalladium formation. Particularly noteworthy is the use of substrates containing a labile allylic moiety and new simple catalytic systems capable of promoting highly chemo- and regioselective allylic C-H amination by overcoming significant challenges.
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Affiliation(s)
- Young Ho Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Dong Bin Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Su San Jang
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
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9
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Lee JY, Varshnaya RK, Yoo EJ. Synthesis of Chiral Diazocine Derivatives via a Copper-Catalyzed Dearomative [5+3] Cycloaddition. Org Lett 2022; 24:3731-3735. [PMID: 35549493 DOI: 10.1021/acs.orglett.2c01389] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Copper-catalyzed [5+3] cycloaddition of N-aromatic zwitterions and enol diazoacetates produced enantio-enriched diazocine derivatives. A sterically encumbered BOX ligand and NaBArF additive played significant roles in driving the overall catalytic process via the unfavorable dearomatization to construct the desired eight-membered heterocyclic compounds. The induced stereoselectivity was preserved after further modifications of the skeleton, which demonstrates the potential applications of the developed asymmetric catalysis.
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Affiliation(s)
- Ju Young Lee
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Rohit Kumar Varshnaya
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
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10
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Maeng C, Lee PH. Synthesis of azulenolactones through sequential C(2)‐bromoarylation and intramolecular CO bond formation from azulene‐1‐carboxylic acids and di(2‐bromoaryl)iodonium salts in
one pot. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chanyoung Maeng
- Department of Chemistry Kangwon National University Chuncheon Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry Kangwon National University Chuncheon Republic of Korea
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11
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Liu J, Xiao X, Lai Y, Zhang Z. Recent advances in transition metal-catalyzed heteroannulative difunctionalization of alkenes via C-H activation for the synthesis of heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo00081d] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterocyclic compounds are the fundamental structural motifs distributed in natural products, pharmaceuticals and biologically active compounds. Thus, there is increasing interest in the development of novel synthetic strategies for the...
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