1
|
Shambhavi CN, Jeganmohan M. Synthesis of 1 H-Isoindoles via Ruthenium(II)-Catalyzed Cyclization of Benzimidates with Alkenes. J Org Chem 2024; 89:9896-9909. [PMID: 38916456 DOI: 10.1021/acs.joc.4c00688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
A Ru(II)-catalyzed efficient synthesis of 1H-isoindoles via the cyclization of benzimidates with alkenes has been demonstrated. This methodology exhibits high compatibility with various functionalized activated and unactivated olefins containing different sensitive functional groups. This protocol provides an effective method for synthesizing various 1H-isoindole derivatives in decent to excellent yields. Notably, the ortho-alkenylation of benzimidates with unactivated alkenes was achieved. A potential reaction mechanism has been suggested that involves C-H activation, 1,2 insertion, and β-hydride elimination subsequent to aza-Michael addition.
Collapse
Affiliation(s)
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| |
Collapse
|
2
|
Chen B, Pan B, He X, Jiang L, Chan ASC, Qiu L. Access to chiral dihydrophenanthridines via a palladium(0)-catalyzed Suzuki coupling and C-H arylation cascade reaction using new chiral-bridged biphenyl bifunctional ligands. Chem Sci 2024; 15:6884-6890. [PMID: 38725491 PMCID: PMC11077526 DOI: 10.1039/d4sc00621f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/01/2024] [Indexed: 05/12/2024] Open
Abstract
A class of chiral-bridged biphenyl phosphine-carboxylate bifunctional ligands CB-Phos has been developed and successfully applied to Pd(0)-catalyzed single enantioselective C-H arylation and a one pot cascade reaction involving Suzuki cross-coupling and C-H arylation. The catalytic system provides a new and convenient way for the synthesis of versatile chiral dihydrophenanthridines with rich structures and broad functional group tolerance. Good to excellent yields with high enantioselectivities were generally achieved. The reaction mechanism of the cascade reaction was also preliminarily discussed.
Collapse
Affiliation(s)
- Bin Chen
- School of Chemistry, IGCME, The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Bendu Pan
- School of Chemistry, IGCME, The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xiaobo He
- School of Chemistry, IGCME, The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Long Jiang
- School of Chemistry, IGCME, The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Albert S C Chan
- School of Chemistry, IGCME, The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Liqin Qiu
- School of Chemistry, IGCME, The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| |
Collapse
|
3
|
Rosadoni E, Banchini F, Bellini S, Lessi M, Pasquinelli L, Bellina F. Ligandless Palladium-Catalyzed Direct C-5 Arylation of Azoles Promoted by Benzoic Acid in Anisole. Molecules 2022; 27:molecules27238454. [PMID: 36500546 PMCID: PMC9735507 DOI: 10.3390/molecules27238454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 11/26/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
The palladium-catalyzed direct arylation of azoles with (hetero)aryl halides is nowadays one of the most versatile and efficient procedures for the selective synthesis of heterobiaryls. Although this procedure is, due to its characteristics, also of great interest in the industrial field, the wide use of a reaction medium such as DMF or DMA, two polar aprotic solvents coded as dangerous according to environmental, health, safety (EHS) parameters, strongly limits its actual use. In contrast, the use of aromatic solvents as the reaction medium for direct arylations, although some of them show good EHS values, is poorly reported, probably due to their low solvent power against reagents and their potential involvement in undesired side reactions. In this paper we report an unprecedented selective C-5 arylation procedure involving anisole as an EHS green reaction solvent. In addition, the beneficial role of benzoic acid as an additive was also highlighted, a role that had never been previously described.
Collapse
Affiliation(s)
- Elisabetta Rosadoni
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Federico Banchini
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Sara Bellini
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Marco Lessi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Luca Pasquinelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Bellina
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
- Consorzio C.I.N.M.P.I.S., Via E. Orabona 4, 70125 Bari, Italy
- Correspondence:
| |
Collapse
|
4
|
Karishma P, Mandal SK, Sakhuja R. Rhodium‐Catalyzed Spirocyclization of Maleimide with
N
‐Aryl‐2,3‐dihydrophthalazine‐1,4‐dione to Access Pentacyclic Spiro‐Succinimides. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Pidiyara Karishma
- Department of Chemistry Birla Institute of Technology and Science Pilani Rajasthan 333031 India
| | - Sanjay K. Mandal
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Sector 81, SAS Nagar, Manuali P.O. Mohali Punjab 140306 India
| | - Rajeev Sakhuja
- Department of Chemistry Birla Institute of Technology and Science Pilani Rajasthan 333031 India
| |
Collapse
|
5
|
Bartoccini F, Regni A, Retini M, Piersanti G. Concise catalytic asymmetric synthesis of (R)-4-amino Uhle's ketone. Org Biomol Chem 2021; 19:2932-2940. [PMID: 33885552 DOI: 10.1039/d1ob00353d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A practical and asymmetric synthesis of (R)-4-amino-5-oxo-1,3,4,5-tetrahydrobenz[cd]indole, an enantiopure framework shared by most ergot alkaloids, was accomplished. Our method involves a Rh(i)-catalyzed 6-exo-trig intramolecular cyclization of an appropriate 4-pinacolboronic ester d-tryptophan aldehyde followed by the oxidation of the resulting secondary benzylic alcohol with a Cu(i)-ABNO catalyst and final deprotection under acidic conditions. This new procedure offers significant advantages over previous synthetic approaches, including brevity, mild reaction conditions, preservation of chiral integrity, and high overall yield and avoids the use of stoichiometric amounts of strongly basic and pyrophoric organometallic reagents.
Collapse
Affiliation(s)
- Francesca Bartoccini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Piazza Rinascimento 6, 61029 Urbino, PU, Italy.
| | | | | | | |
Collapse
|
6
|
Mori A. Structure- and Functionality-Based Molecular Design of Azoles and Thiophenes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200169] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Atsunori Mori
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| |
Collapse
|
7
|
Schmidt AF, Kurokhtina AA, Larina EV, Vidyaeva EV, Schmidt EY, Lagoda NA. Is the Mechanistic Scheme of the Heck‐Type Coupling with Unsaturated Substrates needed to be revised? ChemCatChem 2020. [DOI: 10.1002/cctc.202000925] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Alexander F. Schmidt
- Department of Chemistry Irkutsk State University K. Marx Str.1 664003 Irkutsk Russia
| | - Anna A. Kurokhtina
- Department of Chemistry Irkutsk State University K. Marx Str.1 664003 Irkutsk Russia
| | - Elizaveta V. Larina
- Department of Chemistry Irkutsk State University K. Marx Str.1 664003 Irkutsk Russia
| | - Elena V. Vidyaeva
- Department of Chemistry Irkutsk State University K. Marx Str.1 664003 Irkutsk Russia
| | - Elena Yu. Schmidt
- A. E. Favorsky Irkutsk Institute of Chemistry Siberian Division of Russian Academy of Sciences Favorsky str. 1 664033 Irkutsk Russia
| | - Nadezhda A. Lagoda
- Department of Chemistry Irkutsk State University K. Marx Str.1 664003 Irkutsk Russia
| |
Collapse
|
8
|
Ishihara J, Kawasaki N, Fukuda H. Concise Synthesis of TPCA-1 and Related Thiophene-carboxamides by Cross Coupling. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
9
|
|
10
|
He ZT, Hartwig JF. Palladium-Catalyzed α-Arylation of Carboxylic Acids and Secondary Amides via a Traceless Protecting Strategy. J Am Chem Soc 2019; 141:11749-11753. [PMID: 31287682 PMCID: PMC9059736 DOI: 10.1021/jacs.9b03291] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A novel traceless protecting strategy is presented for the long-standing challenge of conducting the palladium-catalyzed α-arylation of carboxylic aids and secondary amides with aryl halides. Both of the presented coupling processes occur with a variety of carboxylic acids and amides and with a variety of aryl bromides containing a broad range of functional groups, including base-sensitive functionality like acyl, alkoxycarbonyl, nitro, cyano, and even hydroxyl groups. Five commercial drugs were prepared through this method in one step in 81-96% yield. Gram-scale synthesis of medication Naproxen and Flurbiprofen with low palladium loading further highlights the practical value of this method.
Collapse
Affiliation(s)
- Zhi-Tao He
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - John F. Hartwig
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| |
Collapse
|
11
|
Vargová D, Némethová I, Plevová K, Šebesta R. Asymmetric Transition-Metal Catalysis in the Formation and Functionalization of Metal Enolates. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04357] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Denisa Vargová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Ivana Némethová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Kristína Plevová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Radovan Šebesta
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| |
Collapse
|
12
|
Zhao WQ, Qian K, Su CW, Shao L, Zhou W, Cui DM, Zhang C, Wang XL. Copper-catalyzed synthesis of pyrazolo[5,1-a]isoquinoline derivatives from 2-gem-dipyrazolylvinylbromobenzenes. NEW J CHEM 2019. [DOI: 10.1039/c9nj01882d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient copper-catalyzed synthesis of pyrazolo[5,1-a]isoquinolines from 2-gem-dipyrazolylvinylbromobenzenes under mild conditions has been developed.
Collapse
Affiliation(s)
- Wan Qiu Zhao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Kun Qian
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Cheng Wu Su
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Lei Shao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Wei Zhou
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Dong-Mei Cui
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Chen Zhang
- School of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Xiu-Li Wang
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541006
- China
| |
Collapse
|
13
|
Ji H, Cai J, Gan N, Wang Z, Wu L, Li G, Yi T. Palladium-catalyzed borylation of aryl (pseudo)halides and its applications in biaryl synthesis. Chem Cent J 2018; 12:136. [PMID: 30564982 PMCID: PMC6768141 DOI: 10.1186/s13065-018-0510-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/03/2018] [Indexed: 12/26/2022] Open
Abstract
A facile and efficient palladium-catalyzed borylation of aryl (pseudo)halides at room temperature has been developed. Arylboronic esters were expeditiously assembled in good yields and with a broad substrate scope and good functional group compatibility. This approach has been successfully applied to the one-pot two-step borylation/Suzuki-Miyaura cross-coupling reaction, providing a concise access to biaryl compounds from readily available aryl halides. Furthermore, a parallel synthesis of biaryl analogs is accomplished at room temperature using the strategy, which enhances the practical usefulness of this method.
Collapse
Affiliation(s)
- Hong Ji
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436 People’s Republic of China
| | - Jianghong Cai
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436 People’s Republic of China
| | - Nana Gan
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436 People’s Republic of China
| | - Zhaohua Wang
- School of Basic Sciences, Guangzhou Medical University, Guangzhou, 511436 People’s Republic of China
| | - Liyang Wu
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436 People’s Republic of China
| | - Guorong Li
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436 People’s Republic of China
| | - Tao Yi
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, 999077 Hong Kong Special Administrative Region People’s Republic of China
| |
Collapse
|
14
|
Gao J, Zhang S, Zhang Y. Ruthenium-catalyzed annulation of aromatic ketones with internal alkynes: A reliable route to substituted naphthalene derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
15
|
Tamizmani M, Ramesh B, Jeganmohan M. Ruthenium(II)-Catalyzed Redox-Free [3 + 2] Cycloaddition of N-Sulfonyl Aromatic Aldimines with Maleimides. J Org Chem 2018; 83:3746-3755. [DOI: 10.1021/acs.joc.8b00102] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Masilamani Tamizmani
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Balu Ramesh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| |
Collapse
|
16
|
Quan M, Wu L, Yang G, Zhang W. Pd(ii), Ni(ii) and Co(ii)-catalyzed enantioselective additions of organoboron reagents to ketimines. Chem Commun (Camb) 2018; 54:10394-10404. [DOI: 10.1039/c8cc04932g] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This feature article highlights the development of Pd(ii), Ni(ii), and Co(ii)-catalyzed asymmetric additions of organoboron reagents to ketimines.
Collapse
Affiliation(s)
- Mao Quan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Liang Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Guoqiang Yang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| |
Collapse
|
17
|
Liu X, Pu J, Luo X, Cui X, Wu Z, Huang G. CBr4-mediated cross-coupling reactions of α-amino carbonyl compounds with alcohols and thiols to build C–O and C–S bonds, respectively. Org Chem Front 2018. [DOI: 10.1039/c7qo00830a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct C(sp3)–H bond functionalization of α-amino carbonyl compounds with CBr4 to construct C–O and C–S bonds.
Collapse
Affiliation(s)
- Xingxing Liu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Jinghong Pu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Xinliang Luo
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Xinfeng Cui
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Zhaoyang Wu
- The Environmental Protection Agency of Rudong Coastal Economic Development Zone
- Nantong 226400
- China
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| |
Collapse
|
18
|
Manikandan R, Tamizmani M, Jeganmohan M. Ruthenium(II)-Catalyzed Redox-Neutral Oxidative Cyclization of Benzimidates with Alkenes with Hydrogen Evolution. Org Lett 2017; 19:6678-6681. [DOI: 10.1021/acs.orglett.7b03405] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rajendran Manikandan
- Department
of Chemistry, Indian Institute of Science Education and Research, Pune 411021, India
| | - Masilamani Tamizmani
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Masilamani Jeganmohan
- Department
of Chemistry, Indian Institute of Science Education and Research, Pune 411021, India
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| |
Collapse
|
19
|
Erdoğan H, Aktaş A, Gök Y, Sarı Y. N-Propylphthalimide-substituted bis-(NHC)PdX2 complexes: synthesis, characterization and catalytic activity in direct arylation reactions. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0190-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
20
|
Ramesh B, Jeganmohan M. Ruthenium-Catalyzed Remote C–H Sulfonylation of N-Aryl-2-aminopyridines with Aromatic Sulfonyl Chlorides. Org Lett 2017; 19:6000-6003. [DOI: 10.1021/acs.orglett.7b03051] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Balu Ramesh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil
Nadu, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil
Nadu, India
| |
Collapse
|
21
|
An efficient access to 2,3-diarylimidazo[1,2-a]pyridines via silver(I)-catalyzed C-H bond functionalization. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-1950-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
22
|
Hou WY, Wu YK. Palladium-Catalyzed α-Arylation of Cyclic Vinylogous Esters for the Synthesis of γ-Arylcyclohexenones and Total Synthesis of Aromatic Podocarpane Diterpenoids. Org Lett 2017; 19:1220-1223. [DOI: 10.1021/acs.orglett.7b00268] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Wen-Yi Hou
- Department of Applied Chemistry, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Yen-Ku Wu
- Department of Applied Chemistry, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| |
Collapse
|
23
|
Luan YX, Zhang T, Yao WW, Lu K, Kong LY, Lin YT, Ye M. Amide-Ligand-Controlled Highly para-Selective Arylation of Monosubstituted Simple Arenes with Arylboronic Acids. J Am Chem Soc 2017; 139:1786-1789. [DOI: 10.1021/jacs.6b12907] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yu-Xin Luan
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Tao Zhang
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Wei-Wei Yao
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Ke Lu
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Lu-Yao Kong
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Yu-Tong Lin
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Mengchun Ye
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| |
Collapse
|
24
|
Schrapel C, Frey W, Garnier D, Peters R. Highly Enantioselective Ferrocenyl Palladacycle-Acetate Catalysed Arylation of Aldimines and Ketimines with Arylboroxines. Chemistry 2017; 23:2448-2460. [PMID: 27983770 DOI: 10.1002/chem.201605244] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Carmen Schrapel
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Delphine Garnier
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - René Peters
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| |
Collapse
|
25
|
Kim DS, Park WJ, Jun CH. Metal–Organic Cooperative Catalysis in C–H and C–C Bond Activation. Chem Rev 2017; 117:8977-9015. [DOI: 10.1021/acs.chemrev.6b00554] [Citation(s) in RCA: 444] [Impact Index Per Article: 63.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dong-Su Kim
- Department of Chemistry, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Woo-Jin Park
- Department of Chemistry, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Chul-Ho Jun
- Department of Chemistry, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| |
Collapse
|
26
|
Hiroto S, Miyake Y, Shinokubo H. Synthesis and Functionalization of Porphyrins through Organometallic Methodologies. Chem Rev 2016; 117:2910-3043. [PMID: 27709907 DOI: 10.1021/acs.chemrev.6b00427] [Citation(s) in RCA: 277] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review focuses on the postfunctionalization of porphyrins and related compounds through catalytic and stoichiometric organometallic methodologies. The employment of organometallic reactions has become common in porphyrin synthesis. Palladium-catalyzed cross-coupling reactions are now standard techniques for constructing carbon-carbon bonds in porphyrin synthesis. In addition, iridium- or palladium-catalyzed direct C-H functionalization of porphyrins is emerging as an efficient way to install various substituents onto porphyrins. Furthermore, the copper-mediated Huisgen cycloaddition reaction has become a frequent strategy to incorporate porphyrin units into functional molecules. The use of these organometallic techniques, along with the traditional porphyrin synthesis, now allows chemists to construct a wide range of highly elaborated and complex porphyrin architectures.
Collapse
Affiliation(s)
- Satoru Hiroto
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University , Nagoya 464-8603, Japan
| | - Yoshihiro Miyake
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University , Nagoya 464-8603, Japan
| | - Hiroshi Shinokubo
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University , Nagoya 464-8603, Japan
| |
Collapse
|
27
|
Zhang Y, Ni M, Feng B. Iron-catalyzed direct α-arylation of α-amino carbonyl compounds with indoles. Org Biomol Chem 2016; 14:1550-4. [PMID: 26739751 DOI: 10.1039/c5ob02325d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and general α-arylation of α-amino carbonyls with indoles catalyzed by Fe(ClO4)3 has been developed. C-H activation is smoothly fulfilled by using TBHP as the oxidant with good yields. Two hydrogen dissociations make this transformation more environmentally benign because of high atom efficiency.
Collapse
Affiliation(s)
- Yan Zhang
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, P. R. China.
| | - Minjie Ni
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, P. R. China.
| | - Bainian Feng
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, P. R. China.
| |
Collapse
|
28
|
Dzhevakov PB, Topchiy MA, Zharkova DA, Morozov OS, Asachenko AF, Nechaev MS. Miyaura Borylation and One-Pot Two-Step Homocoupling of Aryl Chlorides and Bromides under Solvent-Free Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500844] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
29
|
Motevalli S, Sokeirik Y, Ghanem A. Rhodium-Catalysed Enantioselective C-H Functionalization in Asymmetric Synthesis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501425] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
30
|
Abstract
This Perspective presents the fundamental principles, the elementary reactions, the initial catalytic systems, and the contemporary catalysts that have converted C-H bond functionalization from a curiosity to a reality for synthetic chemists. Many classes of elementary reactions involving transition-metal complexes cleave C-H bonds at typically unreactive positions. These reactions, coupled with a separate or simultaneous functionalization process lead to products containing new C-C, C-N, and C-O bonds. Such reactions were initially studied for the conversion of light alkanes to liquid products, but they have been used (and commercialized in some cases) most often for the synthesis of the more complex structures of natural products, medicinally active compounds, and aromatic materials. Such a change in direction of research in C-H bond functionalization is remarkable because the reactions must occur at an unactivated C-H bond over functional groups that are more reactive than the C-H bond toward classical reagents. The scope of reactions that form C-C bonds or install functionality at an unactivated C-H bond will be presented, and the potential future utility of these reactions will be discussed.
Collapse
|
31
|
Harisha MB, Nagaraj M, Muthusubramanian S, Bhuvanesh N. Base free regioselective synthesis of α-triazolylazine derivatives. RSC Adv 2016. [DOI: 10.1039/c6ra10452e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A regioselective α-heteroarylation followed by deoxygenation towards the synthesis of variety of azine triazole from simple azine N-oxides derivatives and N-tosyl-1,2,3-triazoles has been described.
Collapse
Affiliation(s)
- Mysore Bhyrappa Harisha
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai – 625 021
- India
| | - Muthupandi Nagaraj
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai – 625 021
- India
| | | | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A & M University
- College Station
- USA
| |
Collapse
|
32
|
Maity R, Verma A, van der Meer M, Hohloch S, Sarkar B. Palladium Complexes Bearing Mesoionic Carbene Ligands: Applications in α-Arylation, α-Methylation and Suzuki-Miyaura Coupling Reactions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501031] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
33
|
Li L, Wang Q, Liu P, Meng H, Kan XL, Liu Q, Zhao YL. DBU-mediated metal-free oxidative cyanation of α-amino carbonyl compounds: using molecular oxygen as the oxidant. Org Biomol Chem 2015; 14:165-71. [PMID: 26578362 DOI: 10.1039/c5ob01690h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel DBU-mediated oxidative cyanation of α-amino carbonyl compounds by using air as the sole oxidant was developed under mild metal-free conditions for the first time. The reaction involves a tandem oxidation/Strecker reaction/oxidation process and provides a new and efficient method for the construction of α-iminonitriles in good to high yields in a single step.
Collapse
Affiliation(s)
- Lei Li
- Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China.
| | | | | | | | | | | | | |
Collapse
|
34
|
Gadakh SK, Dey S, Sudalai A. Rh-Catalyzed Synthesis of Coumarin Derivatives from Phenolic Acetates and Acrylates via C-H Bond Activation. J Org Chem 2015; 80:11544-50. [PMID: 26509478 DOI: 10.1021/acs.joc.5b01713] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An efficient annulation strategy involving the reaction of phenolic acetates with acrylates in the presence of [Rh2(OAc)4] as catalyst and formic acid as reducing agent, leading to the high yield synthesis of coumarin derivatives, has been developed. The addition of NaOAc as a base increased the yield of the products. The reaction is quite successful for both electron-rich as well as electron-deficient phenolic acetates, affording coumarins with excellent regioselectivity, and proceeds via C-H bond activation proven by deuterium incorporation studies.
Collapse
Affiliation(s)
- Sunita K Gadakh
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune, Maharashtra, India -411008
| | - Soumen Dey
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune, Maharashtra, India -411008
| | - Arumugam Sudalai
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune, Maharashtra, India -411008
| |
Collapse
|
35
|
Mondal A, Mukhopadhyay C. FeCl3-Catalyzed Combinatorial Synthesis of Functionalized Spiro[Indolo-3,10'-indeno [1,2-b]quinolin]-trione Derivatives. ACS COMBINATORIAL SCIENCE 2015; 17:404-8. [PMID: 26086799 DOI: 10.1021/acscombsci.5b00038] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient, inexpensive, environmentally friendly and high yield one-pot route to new spiro[indolo-3,10'-indeno [1,2-b]quinolin]-trione derivatives has been developed, involving three-component reaction of enaminones, N-substituted isatins and Indane-1,3-dione catalyzed by FeCl3. The approach to this spiro-heterocycle is noteworthy because it results in the formation of three new σ (two C-C and one C-N) bonds in a single operation, leading to the construction of novel spiro skeleton. This method works on a large scale in excellent yields.
Collapse
Affiliation(s)
- Animesh Mondal
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
| |
Collapse
|
36
|
Ma Y, Zhang D, Yan Z, Wang M, Bian C, Gao X, Bunel EE, Lei A. Iron-Catalyzed Oxidative C–H/C–H Cross-Coupling between Electron-Rich Arenes and Alkenes. Org Lett 2015; 17:2174-7. [DOI: 10.1021/acs.orglett.5b00775] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yiyang Ma
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Dongchao Zhang
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Zhiyuan Yan
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Mengfan Wang
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Changliang Bian
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Xinlong Gao
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Emilio E. Bunel
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| |
Collapse
|
37
|
Ke J, Tang Y, Yi H, Li Y, Cheng Y, Liu C, Lei A. Copper-Catalyzed Radical/Radical C sp 3H/PH Cross-Coupling: α-Phosphorylation of Aryl KetoneO-Acetyloximes. Angew Chem Int Ed Engl 2015; 54:6604-7. [DOI: 10.1002/anie.201501287] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Indexed: 11/08/2022]
|
38
|
Ke J, Tang Y, Yi H, Li Y, Cheng Y, Liu C, Lei A. Copper-Catalyzed Radical/Radical C sp 3H/PH Cross-Coupling: α-Phosphorylation of Aryl KetoneO-Acetyloximes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501287] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
39
|
Wei WT, Li HB, Song RJ, Li JH. Copper-catalyzed oxidative oxyalkylation of enol ethers with α-amino carbonyl compounds and hydroperoxides. Chem Commun (Camb) 2015; 51:11325-8. [DOI: 10.1039/c5cc03468j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The first example of alkene oxyalkylation through C(sp3)–H functionalization is described for the synthesis of 2-amino-3,4-dioxy carbonyl compounds.
Collapse
Affiliation(s)
- Wen-Ting Wei
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Hai-Bing Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| |
Collapse
|
40
|
Kale AP, Kumar GS, Kapur M. Palladium-catalyzed synthesis of 2-alkenyl-3-arylindoles via a dual α-arylation strategy: formal synthesis of the antilipemic drug fluvastatin. Org Biomol Chem 2015; 13:10995-1002. [PMID: 26384042 DOI: 10.1039/c5ob01632k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new approach has been developed for the synthesis of substituted 2-alkenyl-3-arylindoles utilizing a palladium-catalyzed dual α-arylation of TES-enol ethers of enones as the key step.
Collapse
Affiliation(s)
- Ajit Prabhakar Kale
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Gangam Srikanth Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Manmohan Kapur
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| |
Collapse
|
41
|
Hayashi S, Kojima Y, Koizumi T. Highly regioselective Pd/C-catalyzed direct arylation toward thiophene-based π-conjugated polymers. Polym Chem 2015. [DOI: 10.1039/c4py01426j] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have successfully developed an efficient and regioselective direct arylation polycondensation of thiophenes using Pd/C heterogeneous catalysts.
Collapse
Affiliation(s)
- Shotaro Hayashi
- Department of Applied Chemistry
- National Defense Academy
- Yokosuka
- Japan
| | - Yoshihisa Kojima
- Department of Applied Chemistry
- National Defense Academy
- Yokosuka
- Japan
| | - Toshio Koizumi
- Department of Applied Chemistry
- National Defense Academy
- Yokosuka
- Japan
| |
Collapse
|
42
|
Zhang SY, Li Q, He G, Nack WA, Chen G. Pd-Catalyzed Monoselective ortho-C–H Alkylation of N-Quinolyl Benzamides: Evidence for Stereoretentive Coupling of Secondary Alkyl Iodides. J Am Chem Soc 2014; 137:531-9. [DOI: 10.1021/ja511557h] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shu-Yu Zhang
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Qiong Li
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Gang He
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - William A. Nack
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Gong Chen
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| |
Collapse
|
43
|
More NY, Jeganmohan M. A Regioselective Synthesis of Benzopinacolones through Aerobic Dehydrogenative α-Arylation of the Tertiary sp3CH Bond of 1,1-Diphenylketones with Aromatic and Heteroaromatic Compounds. Chemistry 2014; 21:1337-42. [DOI: 10.1002/chem.201404308] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Indexed: 01/30/2023]
|
44
|
Sharma M, Bhuyan PJ. Synthesis of symmetrical and unsymmetrical bis(pyrrolo[2,3-d]pyrimidinyl)methanes. RSC Adv 2014. [DOI: 10.1039/c4ra09729g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
45
|
Yu D, Wang CS, Yao C, Shen Q, Lu L. Nickel-Catalyzed α-Arylation of Zinc Enolates with Polyfluoroarenes via C–F Bond Activation under Neutral Conditions. Org Lett 2014; 16:5544-7. [DOI: 10.1021/ol502499q] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Daohong Yu
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Chang-Sheng Wang
- College
of Science, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, China
| | - Cheng Yao
- College
of Science, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, China
| | - Qilong Shen
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Long Lu
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| |
Collapse
|
46
|
Kalogirou AS, Koutentis PA. Silver mediated direct C–H arylation of 3-bromoisothiazole-5-carbonitrile. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
47
|
Gowrisankar S, Seayad J. AgONO-Assisted Direct CH Arylation of Heteroarenes with Anilines. Chemistry 2014; 20:12754-8. [DOI: 10.1002/chem.201403640] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Indexed: 12/20/2022]
|
48
|
Pati K, Alabugin IV. Synthesis of Substituted Biaryls through Gold-Catalyzed Petasis-Ferrier Rearrangement of Propargyl Ethers. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402469] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
49
|
Wei WT, Song RJ, Li JH. Copper-Catalyzed Oxidative α-Alkylation of α-Amino Carbonyl Compounds with EthersviaDual C(sp3)-H Oxidative Cross- Coupling. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301091] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
50
|
Bartoccini F, Casoli M, Mari M, Piersanti G. Synthesis of (±)-cis-Clavicipitic Acid by a Rh(I)-Catalyzed Intramolecular Imine Reaction. J Org Chem 2014; 79:3255-9. [DOI: 10.1021/jo500245s] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Francesca Bartoccini
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, Piazza del
Rinascimento 6, 61029 Urbino (PU), Italy
| | - Mariangela Casoli
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, Piazza del
Rinascimento 6, 61029 Urbino (PU), Italy
| | - Michele Mari
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, Piazza del
Rinascimento 6, 61029 Urbino (PU), Italy
| | - Giovanni Piersanti
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, Piazza del
Rinascimento 6, 61029 Urbino (PU), Italy
| |
Collapse
|