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Kang J, Kim SY, Zong K. Facile Synthesis of Dithienobenzothiadiazoles and D18-Cl Polymer via Na 2S-Mediated Rapid Thiophene-Annulations for Organic Solar Cells. CHEMSUSCHEM 2024; 17:e202400055. [PMID: 38504635 DOI: 10.1002/cssc.202400055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/21/2024]
Abstract
We present a novel synthetic route for the rapid construction of dithieno[3',2':3,4;2'',3'':5,6]benzo[1,2-c][1,2,5]thiadiazoles via Na2S-promoted thiophene annulation. This method facilitated the synthesis of D18-Cl polymer, known for its efficacy as a polymer donor in bulk-heterojunction polymer solar cells. Starting from commercially available 4,7-dihalo-5,6-difluorobenzo[c][1,2,5]thiadiazole, various 4,7-dialkynylated compounds were obtained through Sonogashira reaction conditions. Subsequent Na2S-promoted thiophene annulations yielded DTBT and its derivatives in excellent yields within 10 minutes. DTBT was then utilized as a precursor for the concise synthesis of D18-Cl, benefiting from reduced synthetic steps, mild reaction conditions, decreased complexity, and high overall yields. In another route, a space group-bridged DTBT was directly constructed via Na2S-promoted thiophene annulations and converted into D18-Cl through a couple of steps. This developed protocol offers a straightforward and reliable synthetic tool, conducive to reducing complexities in the production of DTBT-based organic electronic materials, thereby advancing the potential commercialization of organic solar cells.
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Affiliation(s)
- Junmo Kang
- Department of Chemical Education, Institute of Fusion Science, Jeonbuk National University, 567 Baekje-daero, Jeonju, 54896, Republic of Korea
| | - Shin Yeong Kim
- Department of Chemical Education, Institute of Fusion Science, Jeonbuk National University, 567 Baekje-daero, Jeonju, 54896, Republic of Korea
| | - Kyukwan Zong
- Department of Chemical Education, Institute of Fusion Science, Jeonbuk National University, 567 Baekje-daero, Jeonju, 54896, Republic of Korea
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2
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Khoshbakhsh Foumani M, Conrad J, Frey W, Beifuss U. Flexible Approach for the Synthesis of Annulated 4 H-Pyrans Based on a Cu(I)-Catalyzed C-Allylation/O-Vinylation Reaction of Cyclic 1-Bromoallyl Tosylates with Cyclic and Acyclic 1,3-Dicarbonyls. J Org Chem 2022; 87:8316-8341. [PMID: 35732059 DOI: 10.1021/acs.joc.1c02997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The Cu(I)-catalyzed reaction between five-, six-, seven-, and eight-membered cyclic 1-bromoallyl tosylates and five- and six-membered cyclic 1,3-dicarbonyls in DMF at 80 °C using Cs2CO3 as a base and 2-picolinic acid as an additive selectively delivers a wide array of bisannulated 4H-pyrans in a single step with yields up to 92%. The transformations are considered to proceed as intermolecular C-allylations/intramolecular O-vinylations. With six-membered cyclic 1-bromoallyl tosylates and acyclic β-ketoesters as substrates, the corresponding 5,6,7,8-tetrahydro-4H-chromene-3-carboxylates are obtained with yields up to 59%.
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Affiliation(s)
- Mehran Khoshbakhsh Foumani
- Bioorganische Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße 30, Stuttgart D-70599, Germany
| | - Jürgen Conrad
- Bioorganische Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße 30, Stuttgart D-70599, Germany
| | - Wolfgang Frey
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Uwe Beifuss
- Bioorganische Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße 30, Stuttgart D-70599, Germany
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3
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Jangir N, Poonam, Dhadda S, Jangid DK. Recent advances in the synthesis of five‐ and six‐membered heterocycles as bioactive skeleton: A concise overview. ChemistrySelect 2022. [DOI: 10.1002/slct.202103139] [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)
- Nidhi Jangir
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
| | - Poonam
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
| | - Surbhi Dhadda
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
| | - Dinesh K. Jangid
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
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4
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M. Honnanayakanavar J, Owk O, Suresh S. Recent Advances in the Tandem Copper-Catalyzed Ullmann-Goldberg N-Arylation–Cyclization Strategies. Org Biomol Chem 2022; 20:2993-3028. [DOI: 10.1039/d2ob00082b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N‒Aryl bond formation under copper catalysis has been playing a pivotal role and has been extensively used as a key step in the total syntheses of several therapeutic molecules. The...
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Honnanayakanavar JM, Nanubolu JB, Suresh S. Tandem copper catalyzed regioselective N-arylation-amidation: synthesis of angularly fused dihydroimidazoquinazolinones and the anticancer agent TIC10/ONC201. Org Biomol Chem 2021; 19:8497-8501. [PMID: 34546282 DOI: 10.1039/d1ob01561c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we present a copper-catalyzed tandem reaction of 2-aminoimidazolines and ortho-halo(hetero)aryl carboxylic acids that causes the regioselective formation of angularly fused tricyclic 1,2-dihydroimidazo[1,2-a]quinazolin-5(4H)-one derivatives. The reaction involved in the construction of the core six-membered pyrimidone moiety proceeded via regioselective N-arylation-condensation. The presented protocol been successfully applied to accomplish the total synthesis of TIC10/ONC201, which is an active angular isomer acting as a tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL): a sought after anticancer clinical agent.
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Affiliation(s)
- Jyoti M Honnanayakanavar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jagadeesh Babu Nanubolu
- Laboratory of X-Ray Crystallography, Department of Analytical Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - Surisetti Suresh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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6
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Deng Y, Zhang X, Liu C, Cao S. Cu-mediated or metal-free alkylation of gem-dibromoalkenes with tertiary, secondary and primary alkyl Grignard reagents. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Kim SH, An JH, Lee JH. Highly chemoselective deoxygenation of N-heterocyclic N-oxides under transition metal-free conditions. Org Biomol Chem 2021; 19:3735-3742. [PMID: 33908554 DOI: 10.1039/d1ob00260k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Because their site-selective C-H functionalizations are now considered one of the most useful tools for synthesizing various N-heterocyclic compounds, the highly chemoselective deoxygenation of densely functionalized N-heterocyclic N-oxides has received much attention from the synthetic chemistry community. Here, we provide a protocol for the highly chemoselective deoxygenation of various functionalized N-oxides under visible light-mediated photoredox conditions with Na2-eosin Y as an organophotocatalyst. Mechanistic studies imply that the excited state of the organophotocatalyst is reductively quenched by Hantzsch esters. This operationally simple technique tolerates a wide range of functional groups and allows high-yield, multigram-scale deoxygenation.
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Affiliation(s)
- Se Hyun Kim
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju Campus, Gyeongju 38066, Republic of Korea.
| | - Ju Hyeon An
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju Campus, Gyeongju 38066, Republic of Korea.
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju Campus, Gyeongju 38066, Republic of Korea.
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8
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Rekowski SP, Wani AA, Conrad J, Bharatam PV, Frey W, Beifuss U. Transition metal-free diastereospecific synthesis of (Z)-2-arylidene-2,3-dihydrobenzo[b][1,4]dioxines by reaction of (Z)-1,2-dibromo-3-aryl-2-propenes with catechols. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Singer RA. BippyPhos: A Highly Versatile Ligand for Pd‐Catalyzed C−N, C−O and C−C Couplings. Isr J Chem 2020. [DOI: 10.1002/ijch.201900170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Robert A. Singer
- Chemical Research and DevelopmentPfizer Worldwide Research and Development, Groton Labs Eastern Point Road Groton CT 06340 United States
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10
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Qiu H, Zhou P, Liu W, Zhang J, Chen B. Palladium‐Catalyzed Intermolecular Carbopalladation Cascade: Facile Synthesis of [1,2,3]Triazolo[1,5‐
a
]quinolines from
o
‐Triazole Bromobenzenes and Internal Alkynes. ChemistrySelect 2020. [DOI: 10.1002/slct.201904238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Huihua Qiu
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Peng Zhou
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Weibing Liu
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Jiantao Zhang
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Baoning Chen
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
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11
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Kaur N, Verma Y, Ahlawat N, Grewal P, Bhardwaj P, Jangid NK. Copper-assisted synthesis of five-memberedO-heterocycles. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1724144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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12
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Kaur N, Verma Y, Grewal P, Ahlawat N, Bhardwaj P, Jangid NK. Palladium acetate assisted synthesis of five-membered N-polyheterocycles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1723640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
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13
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Kaur N. Metal and Non-Metal Catalysts in the Synthesis of Five-Membered S-Heterocycles. Curr Org Synth 2020; 16:258-275. [PMID: 31975675 DOI: 10.2174/1570179416666181207144430] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 11/19/2018] [Accepted: 11/29/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND A wide variety of biological activities are exhibited by N, O and S containing heterocycles and recently, many reports appeared for the synthesis of these heterocycles. The synthesis of heterocycles with the help of metal and non-metal catalyst has become a highly rewarding and important method in organic synthesis. This review article concentrated on the synthesis of S-heterocylces in the presence of metal and non-metal catalyst. The synthesis of five-membered S-heterocycles is described here. OBJECTIVE There is a need for the development of rapid, efficient and versatile strategy for the synthesis of heterocyclic rings. Metal, non-metal and organocatalysis involving methods have gained prominence because traditional conditions have disadvantages such as long reaction times, harsh conditions and limited substrate scope. CONCLUSION The metal-, non-metal-, and organocatalyst assisted organic synthesis is a highly dynamic research field. For ßthe chemoselective and efficient synthesis of heterocyclic molecules, this protocol has emerged as a powerful route. Various methodologies in the past few years have been pointed out to pursue more sustainable, efficient and environmentally benign procedures and products. Among these processes, the development of new protocols (catalysis), which avoided the use of toxic reagents, are the focus of intense research.
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022, Rajasthan, India
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14
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Kaur N, Ahlawat N, Verma Y, Grewal P, Bhardwaj P, Jangid NK. Metal and organo-complex promoted synthesis of fused five-memberedO-heterocycles. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1700522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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15
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Lopes AB, Wagner P, Gulea M. Synthesis of Benzimidazole-Fused Medium-Sized N,S
-Heterocycles via Palladium-Catalyzed Cyclizations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801686] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Alexandra Basilio Lopes
- Laboratoire d'Innovation Thérapeutique (LIT) UMR 7200; Faculté de Pharmacie; Université de Strasbourg, CNRS; route du Rhin 67401 Illkirch France
| | - Patrick Wagner
- Laboratoire d'Innovation Thérapeutique (LIT) UMR 7200; Faculté de Pharmacie; Université de Strasbourg, CNRS; route du Rhin 67401 Illkirch France
| | - Mihaela Gulea
- Laboratoire d'Innovation Thérapeutique (LIT) UMR 7200; Faculté de Pharmacie; Université de Strasbourg, CNRS; route du Rhin 67401 Illkirch France
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16
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Yang R, Deng S, Dong XY, Song X, Cai H, Bai J, Xiao Q. Metal-free synthesis of 1, N6-ethenoadenines from N6-propargyl-adenines via NIS mediated radical cascade reaction. RSC Adv 2019; 9:38897-38901. [PMID: 35540232 PMCID: PMC9075968 DOI: 10.1039/c9ra09198j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/18/2019] [Indexed: 11/21/2022] Open
Abstract
In the present paper, an efficient approach for the construction of 1,N6-ethenoadenines from conveniently prepared N6-propargyl-adenines is developed. This reaction merges N-iodosuccinimide radical initiation and aerobic aminooxygenation in dioxane. This mild, 5-exo-dig, and metal-free cascade reaction could be applied to a wide substrate scope to provide 1,N6-ethenoadenines in moderate to good yields. The reaction mechanism was proposed and tested using radical inhibitor (butylated hydroxytoluene) and isotopic labelling (18O2) experiments. An efficient approach for the construction of 1,N6-ethenoadenines is developed through the metal-free mediated radical cascade cyclization of conveniently prepared N6-propargyl-adenines.![]()
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Affiliation(s)
- Ruchun Yang
- Institute of Chemistry
- Nanchang University
- Nanchang 330031
- China
- Institute of Organic Chemistry
| | - Si Deng
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Xiang-you Dong
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Xianrong Song
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Hu Cai
- Institute of Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Jiang Bai
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Qiang Xiao
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
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17
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Kaur N. Applications of palladium dibenzylideneacetone as catalyst in the synthesis of five-membered N-heterocycles. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1540048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
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18
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Prochnow T, Maroneze A, Back DF, Jardim NS, Nogueira CW, Zeni G. Synthesis and anticholinesterase activity of 2-substituted-N-alkynylindoles. Org Biomol Chem 2018; 16:7926-7934. [PMID: 30311614 DOI: 10.1039/c8ob02165a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we report a protocol for the preparation of 2-substituted-N-alkynylindoles via metalation of N-alkynylindoles followed by the capture of a 2-indolyl lithium intermediate with different electrophiles. The reactivity of the indoles prepared was also demonstrated through the reaction with CBr4/Ph3P for the preparation of 2-gem-dibromovinyl N-alkynylindoles and the hydrotelluration reaction of N-alkynylindoles, which led to vinylic tellurides. Some compounds prepared showed AChE inhibitory potential in the low micromolar range similar to that obtained with donepezil, a commercially available cholinesterase inhibitor.
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Affiliation(s)
- Thaís Prochnow
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brasil.
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19
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Dembélé O, Montoir D, Yvorra T, Sérillon D, Tonnerre A, Duflos M, Robert JM, Bazin MA. Novel approach towards 3,7-disubstituted 1,6-naphthyridin-4(1H)-ones exploiting cross-coupling and SNAr reactions of a dihalogenated compound. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Liu X, Chen G, Zhou Y, Liu P. Palladium/copper-catalyzed tandem Sonogashira coupling/lactonization of methyl 2-(2′,2′-dibromovinyl)benzoate with terminal alkynes: Facile access to 3-alkynyl isocoumarins. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Jiang X, Li G, Yu C. Synthesis of N-aryl-3-(arylimino)-3H-indol-2-amines via hypervalent iodine promoted oxidative diamination of indoles. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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22
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Kaur N, Jangid NK, Sharma V. Metal- and nonmetal-catalyzed synthesis of five-membered S,N-heterocycles. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1415338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, India
| | | | - Vivek Sharma
- Department of Chemistry, Banasthali University, Banasthali, India
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Copper/Palladium-Catalyzed Cyclization/Cross-Coupling Cascade Reaction of 2-gem
-Dibromovinyl Aryl Selenides: Synthesis of 2-Substituted Benzo[b
]selenophenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701095] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Woźnicki P, Korzeniowska E, Stankevič M. Intramolecular Nucleophilic Substitution of ω-Haloalkylphosphine Derivatives. J Org Chem 2017; 82:10271-10296. [PMID: 28857562 DOI: 10.1021/acs.joc.7b01767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
ω-Haloalkylphosphine derivatives undergo the intramolecular nucleophilic substitution reaction upon treatment with a strong base, yielding either cycloalkylphosphine derivatives or heterocyclic phosphine derivatives. The selectivity of the cyclization of (ω-haloalkyl)alkylarylphosphine derivatives depends strongly on the distance between the electrophilic and nucleophilic carbon atoms and the structure of the phosphorus moiety. The desymmetrization of dimethylphenylphosphine sulfide followed by haloalkylation and cyclization led to the enantiomerically enriched tertiary phosphine sulfide, possessing a cyclohexyl fragment at the phosphorus.
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Affiliation(s)
- Paweł Woźnicki
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University , Gliniana 33, 20-614 Lublin, Poland
| | - Ewelina Korzeniowska
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University , Gliniana 33, 20-614 Lublin, Poland
| | - Marek Stankevič
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University , Gliniana 33, 20-614 Lublin, Poland
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25
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Guo S, Dai Z, Hua J, Jiang W, Yang Z, Fang Z, Guo K. Cu-Catalyzed Synthesis of C-3 Dicarbonyl Indoles via Aerobic Oxidative Coupling of Acetophenones with Indoles. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Wenjin Jiang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Zhao Yang
- College of Engineering; China Pharmaceutical University; 24 Tongjiaxiang Nanjing 210003 China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
- State Key Laboratory of Materials-Oriented Chemical Engineering; 30 Puzhu Rd S. Nanjing 211816 China
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26
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Orue A, Uria U, Roca-López D, Delso I, Reyes E, Carrillo L, Merino P, Vicario JL. Racemic hemiacetals as oxygen-centered pronucleophiles triggering cascade 1,4-addition/Michael reaction through dynamic kinetic resolution under iminium catalysis. Development and mechanistic insights. Chem Sci 2017; 8:2904-2913. [PMID: 28451356 PMCID: PMC5376714 DOI: 10.1039/c7sc00009j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 01/28/2017] [Indexed: 11/21/2022] Open
Abstract
2-Hydroxydihydropyran-5-ones behave as excellent polyfunctional reagents able to react with enals through oxa-Michael/Michael process cascade under the combination of iminium and enamine catalysis. These racemic hemiacetalic compounds are used as unconventional O-pronucleophiles in the initial oxa-Michael reaction, also leading to the formation of a single stereoisomer under a dynamic kinetic resolution (DKR) process. Importantly, by using β-aryl or β-alkyl substituted α,β-unsaturated substrates as initial Michael acceptors either kinetically or thermodynamically controlled diastereoisomers were formed with high stereoselection through the careful selection of the reaction conditions. Finally, a complete experimental and computational study confirmed the initially proposed DKR process during the catalytic oxa-Michael/Michael cascade reaction and also explained the kinetic/thermodynamic pathway operating in each case.
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Affiliation(s)
- Ane Orue
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - Uxue Uria
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - David Roca-López
- Departamento de Síntesis y Estructura de Biomoléculas , Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , Universidad de Zaragoza , CSIC , Spain
| | - Ignacio Delso
- Servicio de Resonancia Magnética Nuclear , Centro de Química y Materiales de Aragón (CEQMA) , Universidad de Zaragoza , CSIC , Spain
| | - Efraím Reyes
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - Luisa Carrillo
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - Pedro Merino
- Departamento de Síntesis y Estructura de Biomoléculas , Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , Universidad de Zaragoza , CSIC , Spain
| | - Jose L Vicario
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
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27
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Concise Synthesis of Dithiophene Derivatives by a Palladium- Catalyzed Multiple C-S Cross Coupling/Cyclization Sequence. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600802] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Li G, Zhou G, Zhang-Negrerie D, Du Y, Huang J, Zhao K. Palladium(II) Acetate-Catalyzed Dual C-H Functionalization and C-C Bond Formation: A Domino Reaction for the Synthesis of Functionalized (E)-Bisindole-2-ones from Diarylbut-2-ynediamides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600767] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Guangchen Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
| | - Guangshuai Zhou
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Jianhui Huang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
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29
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Mai S, Zhao Y, Song Q. Chemoselective acylation of benzimidazoles with phenylacetic acids under different Cu catalysts to give fused five-membered N-heterocycles or tertiary amides. Org Biomol Chem 2016; 14:8685-90. [PMID: 27430929 DOI: 10.1039/c6ob01167e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
C-N bond formation via a copper-catalyzed aerobic oxidative decarboxylative tandem protocol was realized. The phenylacetic acids which contain ortho-X (X = F or Br) on the aromatic ring will render a fused five-membered heterocycle via a tandem aromatic nucleophilic substitution and aerobic oxidative decarboxylative acylation at the C(sp(2))-H bond of benzimidazoles under the Cu(OAc)2/K2CO3/BF3·Et2O catalytic system, while with CuBr as the catalyst and pyridine as the base, N-acylation occurred and tertiary amides were obtained.
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Affiliation(s)
- Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao University, China.
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30
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Auto-Tandem Catalysis in Ionic Liquids: Synthesis of 2-Oxazolidinones by Palladium-Catalyzed Oxidative Carbonylation of Propargylic Amines in EmimEtSO₄. Molecules 2016; 21:molecules21070897. [PMID: 27399662 PMCID: PMC6273147 DOI: 10.3390/molecules21070897] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 01/18/2023] Open
Abstract
A convenient carbonylative approach to 2-oxazolidinone derivatives carried out using an ionic liquid (1-ethyl-3-methylimidazolium ethyl sulfate, EmimEtSO₄) as the solvent is presented. It is based on the sequential concatenation of two catalytic cycles, both catalyzed by the same metal species (auto-tandem catalysis): the first cycle corresponds to the oxidative monoaminocarbonylation of the triple bond of propargylic amines to give the corresponding 2-ynamide intermediates, while the second one involves the cyclocarbonylation of the latter to yield 2-(2-oxooxazolidin-5-ylidene)-acetamides. Reactions are carried out using a simple catalytic system consisting of PdI₂ in conjunction with an excess of KI, and the catalyst/solvent system could be recycled several times without appreciable loss of activity after extraction of the organic product with Et₂O.
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31
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An J, Alper H, Beauchemin AM. Copper-Catalyzed Cascade Substitution/Cyclization of N-Isocyanates: A Synthesis of 1-Aminobenzimidazolones. Org Lett 2016; 18:3482-5. [DOI: 10.1021/acs.orglett.6b01686] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing An
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, ON K1N 6N5, Canada
| | - Howard Alper
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, ON K1N 6N5, Canada
| | - André M. Beauchemin
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, ON K1N 6N5, Canada
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32
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Weischedel H, Sudheendran K, Mikhael A, Conrad J, Frey W, Beifuss U. Formation of substituted 1-naphthols and related products via dimerization of alkyl 3-( o -halo(het)aryl)-oxopropanoates based on a CuI-catalyzed domino C -arylation/condensation/aromatization process. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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Trade talk: Policy analyst. Nature 2015. [DOI: 10.1038/nj7577-266a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Grigalunas M, Norrby PO, Wiest O, Helquist P. Single-Flask Multicomponent Palladium-Catalyzed α,γ-Coupling of Ketone Enolates: Facile Preparation of Complex Carbon Scaffolds. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505895] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Grigalunas M, Norrby PO, Wiest O, Helquist P. Single-Flask Multicomponent Palladium-Catalyzed α,γ-Coupling of Ketone Enolates: Facile Preparation of Complex Carbon Scaffolds. Angew Chem Int Ed Engl 2015; 54:11822-5. [PMID: 26276904 DOI: 10.1002/anie.201505895] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Indexed: 12/21/2022]
Abstract
A three-component palladium-catalyzed reaction sequence has been developed in which γ-substituted α,β-unsaturated products are obtained in a single flask by an α-alkenylation with either a subsequent γ-alkenylation or γ-arylation of a ketone enolate. Coupling of a variety of electronically and structurally different components was achieved in the presence of a Pd/Q-Phos catalyst (2 mol %), usually at 22 °C with yields of up to 85 %. Most importantly, access to these products is obtained in one simple operation in place of employing multiple reactions.
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Affiliation(s)
- Michael Grigalunas
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA)
| | - Per-Ola Norrby
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA).,Pharmaceutical Development, Global Medicines Development, AstraZeneca, 43183 Mölndal (Sweden)
| | - Olaf Wiest
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA).,Lab of Computational Chemistry and Drug Design, School of Chemical Biology and Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen 518055 (China)
| | - Paul Helquist
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA).
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36
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Beukeaw D, Udomsasporn K, Yotphan S. Iodine-Catalyzed Oxidative Cross-Coupling of Indoles and Azoles: Regioselective Synthesis of N-Linked 2-(Azol-1-yl)indole Derivatives. J Org Chem 2015; 80:3447-54. [DOI: 10.1021/jo502933e] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Danupat Beukeaw
- Center
for Catalysis and
Center of Excellence for Innovation in Chemistry (PERCH−CIC),
Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Kwanchanok Udomsasporn
- Center
for Catalysis and
Center of Excellence for Innovation in Chemistry (PERCH−CIC),
Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Sirilata Yotphan
- Center
for Catalysis and
Center of Excellence for Innovation in Chemistry (PERCH−CIC),
Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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37
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Xu T, Alper H. Synthesis of Pyrido[2,1-b]quinazolin-11-ones and Dipyrido[1,2-a:2′,3′-d]pyrimidin-5-ones by Pd/DIBPP-Catalyzed Dearomatizing Carbonylation. Org Lett 2015; 17:1569-72. [DOI: 10.1021/acs.orglett.5b00452] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tongyu Xu
- Centre
for Catalysis Research
and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario Canada, K1N 6N5
| | - Howard Alper
- Centre
for Catalysis Research
and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario Canada, K1N 6N5
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38
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Chahdoura F, Mallet-Ladeira S, Gómez M. Palladium nanoparticles in glycerol: a clear-cut catalyst for one-pot multi-step processes applied in the synthesis of heterocyclic compounds. Org Chem Front 2015. [DOI: 10.1039/c4qo00338a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium/TPPTS nanoparticles in glycerol represent a versatile catalyst leading to a large variety of heterocycles through domino/sequential one-pot approaches.
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Affiliation(s)
- Faouzi Chahdoura
- Université de Toulouse
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA)
- UPS and CNRS UMR 5069
- 31062 Toulouse Cedex 9
- France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse
- FR 2599
- Université Paul Sabatier
- 31062 Toulouse Cedex 9
- France
| | - Montserrat Gómez
- Université de Toulouse
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA)
- UPS and CNRS UMR 5069
- 31062 Toulouse Cedex 9
- France
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39
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Obulesu O, Nanubolu JB, Suresh S. Tandem copper (Cu) catalysed N-arylation–vinylogous nitroaldol condensation of 3,5-disubstituted 4-nitropyrazoles. Org Biomol Chem 2015; 13:8232-40. [DOI: 10.1039/c5ob01011j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A tandem process involving copper catalysed N-arylation and vinylogous nitroaldol condensation is described.
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Affiliation(s)
- Owk Obulesu
- Organic and Biomolecular Chemistry Division
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Jagadeesh Babu Nanubolu
- Center for X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad
- India
| | - Surisetti Suresh
- Organic and Biomolecular Chemistry Division
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad
- India
- Academy of Scientific and Innovative Research (AcSIR)
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40
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Guo XX, Gu DW, Wu Z, Zhang W. Copper-Catalyzed C–H Functionalization Reactions: Efficient Synthesis of Heterocycles. Chem Rev 2014; 115:1622-51. [DOI: 10.1021/cr500410y] [Citation(s) in RCA: 748] [Impact Index Per Article: 74.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xun-Xiang Guo
- Shanghai
Center for Systems Biomedicine, Ministry of Education Key Laboratory
of Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan
Road, Shanghai 200240, China
| | - Da-Wei Gu
- Shanghai
Center for Systems Biomedicine, Ministry of Education Key Laboratory
of Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan
Road, Shanghai 200240, China
| | - Zhengxing Wu
- School
of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wanbin Zhang
- School
of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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41
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Rotta-Loria NL, Borzenko A, Alsabeh PG, Lavery CB, Stradiotto M. Utilizing Mor-DalPhos/Palladium-Catalyzed Monoarylation in the Multicomponent One-Pot Synthesis of Indoles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400903] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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43
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Martínez JI, Villar L, Uria U, Carrillo L, Reyes E, Vicario JL. Bifunctional Squaramide Catalysts with the Same Absolute Chirality for the Diastereodivergent Access to Densely Functionalised Cyclohexanes through Enantioselective Domino Reactions. Synthesis and Mechanistic Studies. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400502] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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Schmidt D, Malakar CC, Beifuss U. 2,3-Dihalo-1-propenes as Building Blocks in Cu(I)-Catalyzed Domino Reactions: Efficient and Selective Synthesis of Furans. Org Lett 2014; 16:4862-5. [DOI: 10.1021/ol502371j] [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)
- Dietmar Schmidt
- Bioorganische
Chemie, Institut
für Chemie, Universität Hohenheim, Garbenstraße 30, D-70599 Stuttgart, Germany
| | - Chandi C. Malakar
- Bioorganische
Chemie, Institut
für Chemie, Universität Hohenheim, Garbenstraße 30, D-70599 Stuttgart, Germany
| | - Uwe Beifuss
- Bioorganische
Chemie, Institut
für Chemie, Universität Hohenheim, Garbenstraße 30, D-70599 Stuttgart, Germany
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45
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Oechsle P, Paradies J. Ambidextrous Catalytic Access to Dithieno[3,2-b:2′,3′-d]thiophene (DTT) Derivatives by Both Palladium-Catalyzed C–S and Oxidative Dehydro C–H Coupling. Org Lett 2014; 16:4086-9. [DOI: 10.1021/ol501752f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Peter Oechsle
- Karlsruhe Institute of Technology (KIT), Institute for Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Jan Paradies
- Karlsruhe Institute of Technology (KIT), Institute for Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
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46
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Gu DW, Guo XX. Copper-catalyzed annulation of heteroaromatic β-halo-α,β-unsaturated carboxylic acids with alkynes for the synthesis of indolo[2,3-c]pyrane-1-ones and thieno[2,3-c]pyrane-7-ones. Org Biomol Chem 2014; 12:6114-20. [DOI: 10.1039/c4ob00996g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Castanheiro T, Donnard M, Gulea M, Suffert J. Cyclocarbopalladation/Cross-Coupling Cascade Reactions in Sulfide Series: Access to Sulfur Heterocycles. Org Lett 2014; 16:3060-3. [DOI: 10.1021/ol501165h] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Thomas Castanheiro
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
| | - Morgan Donnard
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
| | - Mihaela Gulea
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
| | - Jean Suffert
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
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48
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Gao M, Tian J, Lei A. A Reagent-Free Oxidative Cyclization Approach to Indolizine Derivatives from α-Picoline Derivatives and Nitroolefins. Chem Asian J 2014; 9:2068-71. [DOI: 10.1002/asia.201402096] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Indexed: 01/27/2023]
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49
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Chen C, Shang G, Zhou J, Yu Y, Li B, Peng J. Modular Synthesis of Benzimidazole-Fused Phenanthridines from 2-Arylbenzimidazoles and o-Dibromoarenes by a Palladium-Catalyzed Cascade Process. Org Lett 2014; 16:1872-5. [DOI: 10.1021/ol500248h] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chunxia Chen
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Guoning Shang
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jingjie Zhou
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Yanhan Yu
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Bin Li
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jinsong Peng
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
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50
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Pu WC, Mu GM, Zhang GL, Wang C. Copper-catalyzed decarboxylative intramolecular C–O coupling: synthesis of 2-arylbenzofuran from 3-arylcoumarin. RSC Adv 2014. [DOI: 10.1039/c3ra46414h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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