1
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Böhme T, Egeland M, Lorentzen M, Mady MF, Solbakk MF, Sæbø KS, Jørgensen KB. Regiospecific Photochemical Synthesis of Methylchrysenes. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010237. [PMID: 36615430 PMCID: PMC9822284 DOI: 10.3390/molecules28010237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
Methylated polycyclic aromatic hydrocarbons (PAHs) are suspected to be some of the toxic compounds in crude oil towards marine life and are needed as single compounds for environmental studies. 1-, 3- and 6-methylchrysene (3a,b,c) were prepared as single isomers by photochemical cyclization of the corresponding stilbenoids in the Mallory reaction using stoichiometric amounts of iodine in 82-88% yield. 2-methylchrysene (3d) was prepared by photochemical cyclization where the regioselectivity was controlled by elimination of an ortho-methoxy group under acidic oxygen free conditions in 72% yield. These conditions failed to form 4-methylchrysene from the corresponding stilbenoid. All stilbenoids were made from a common naphthyl Wittig salt and suitably substituted benzaldehydes. We have also demonstrated that methylchrysenes can be oxidized to the corresponding chrysenecarboxylic acids by KMnO4 in modest yields.
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Affiliation(s)
- Thomas Böhme
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, P.O. Box 8600, N-4036 Stavanger, Norway
| | - Mari Egeland
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, P.O. Box 8600, N-4036 Stavanger, Norway
| | - Marianne Lorentzen
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, P.O. Box 8600, N-4036 Stavanger, Norway
| | - Mohamed F. Mady
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
| | - Michelle F. Solbakk
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, P.O. Box 8600, N-4036 Stavanger, Norway
| | - Krister S. Sæbø
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, P.O. Box 8600, N-4036 Stavanger, Norway
| | - Kåre B. Jørgensen
- Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, P.O. Box 8600, N-4036 Stavanger, Norway
- Correspondence: ; Tel.: +47-51-83-23-06
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2
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Wu W, Mu Y, Tan J, Wang Z, Zhang C, Li G, Jin Y, Huang X, Han L. Discovery of antibacterial agents targeting biofilm formation: total synthesis and in vitro investigation of amycolasporins. Org Biomol Chem 2022; 20:6831-6843. [PMID: 35968752 DOI: 10.1039/d2ob01166b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three monoterpene alkaloids amycolasporin A and (±) amycolasporins B and C have been synthesized for the first time from commercially available materials in yields of 31%, 14% and 21%, respectively. Their six analogues (18, 19, 30a and 30d-30f) were synthesized through a similar protocol. Meanwhile, the antibacterial activity of all synthesized molecules was evaluated, showing different levels of bioactivity. Among them, analogue 30d was screened as the most effective antibacterial candidate against E. coli (MIC value, 12.5 μg mL-1) and S. aureus (MIC value, 12.5 μg mL-1). Further investigation showed that 30d obviously inhibited biofilm formation and disrupted the preformed biofilm of E. coli and S. aureus by promoting intracellular ROS release.
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Affiliation(s)
- Wenxi Wu
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Yu Mu
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Junfeng Tan
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Zixuan Wang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Chen Zhang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Guiding Li
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Ying Jin
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Xueshi Huang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
| | - Li Han
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110819, China.
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3
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Ye Y, Qi X, Xu B, Lin Y, Xiang H, Zou L, Ye XY, Xie T. Nickel-catalyzed cross-electrophile allylation of vinyl bromides and the modification of anti-tumour natural medicine β-elemene. Chem Sci 2022; 13:6959-6966. [PMID: 35774167 PMCID: PMC9200125 DOI: 10.1039/d2sc02054h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/12/2022] [Indexed: 12/17/2022] Open
Abstract
Herein, we present a facile and efficient allylation method via Ni-catalyzed cross-electrophile coupling of readily available allylic acetates with a variety of substituted alkenyl bromides using zinc as the terminal reductant. This Ni-catalyzed modular approach displays excellent functional group tolerance and a broad substrate scope, which the creation of a series of 1,4-dienes including several structurally complex natural products and pharmaceutical motifs. Moreover, the coupling strategy has the potential to realize enantiomeric control. The practicality of this transformation is demonstrated through the potent modification of the naturally antitumor active molecule β-elemene. Herein, we present a facile and efficient allylation method via Ni-catalyzed cross-electrophile coupling of readily available allylic acetates with a variety of substituted alkenyl bromides using zinc as the terminal reductant.![]()
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Affiliation(s)
- Yang Ye
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Xiang Qi
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Bing Xu
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Ying Lin
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Huan Xiang
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Liang Zou
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Xiang-Yang Ye
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
| | - Tian Xie
- School of Pharmacy, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
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4
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Zhang H. A new protocol for synthesizing diarylmethanes using a benzyltitanium reagent as a nucleophile. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221091941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The first palladium-catalyzed cross-coupling of various substituted benzyltitaniums with aryl triflates is presented for the synthesis of diarylmethanes in yields of up to 94% through highly selective C–O bond functionalization. The benzyltitaniums act as nucleophiles to realize the C(sp2)–C(sp3) cross-coupling with high efficiency in short reaction times. The reactions proceed at 60°C and show excellent functional groups tolerance.
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Affiliation(s)
- He Zhang
- Department of Chemical and Environmental Engineering, Hebei Chemical and Pharmaceutical College, Shijiazhuang, People’s Republic of China
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5
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Ritchie NFC, Zahara AJ, Wilkerson-Hill SM. Divergent Reactivity of α,α-Disubstituted Alkenyl Hydrazones: Bench Stable Cyclopropylcarbinyl Equivalents. J Am Chem Soc 2022; 144:2101-2106. [PMID: 35086332 DOI: 10.1021/jacs.1c12881] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Herein we report the divergent reactivity of 2,2-dialkyl-3-(E)-alkenyl N-tosylhydrazones using Pd-catalyzed cross-coupling conditions, which enable the Z-selective synthesis of 3-aryl-1,4-dienes and gem-dialkyl vinylcyclopropanes. We found that the dialkylbiaryl phosphine ligand SPhos was the optimal ligand for this transformation producing skipped dienes in up to 83% isolated yield. The ratio of skipped diene to vinylcyclopropane is dependent on both the structure of the α,α-disubstituted hydrazones and the aryl halide partner. Using sterically encumbered aryl bromides provided the trans-cyclopropane products selectively in up to 69% yield. The reaction is stereospecific and stereoselective and occurs alongside a competing 1,2-alkenyl group migration pathway.
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Affiliation(s)
- Nina F C Ritchie
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Adam J Zahara
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Sidney M Wilkerson-Hill
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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6
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Chernyshev VM, Khazipov OV, Eremin DB, Denisova EA, Ananikov VP. Formation and stabilization of nanosized Pd particles in catalytic systems: Ionic nitrogen compounds as catalytic promoters and stabilizers of nanoparticles. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213860] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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7
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Liu J, Benowitz NL, Hatsukami DK, Havel CM, Lazcano-Ponce E, Strasser AA, Jacob P. 3-Ethenylpyridine Measured in Urine of Active and Passive Smokers: A Promising Biomarker and Toxicological Implications. Chem Res Toxicol 2021; 34:1630-1639. [PMID: 33998799 DOI: 10.1021/acs.chemrestox.1c00064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In studies of tobacco toxicology, including comparisons of different tobacco products and exposure to secondhand or thirdhand smoke, exposure assessment using biomarkers is often useful. Some studies have indicated that most of the toxicity of tobacco smoke is due to gas-phase compounds. 3-Ethenylpyridine (3-EP) is a major nicotine pyrolysis product occurring in the gas phase of tobacco smoke. It has been used extensively as an environmental tracer for tobacco smoke. 3-EP would be expected to be a useful tobacco smoke biomarker as well, but nothing has been published about its metabolism and excretion in humans. In this Article we describe a solid-phase microextraction (SPME) GC-MS/MS method for determination of 3-EP in human urine and its application to the determination of 3-EP in the urine of smokers and people exposed to secondhand smoke. We conclude that 3-EP is a promising biomarker that could be useful in studies of tobacco smoke exposure and toxicology. We also point out the paucity of data on 3-EP toxicity and suggest that additional studies are needed.
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Affiliation(s)
- Jia Liu
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California, San Francisco, California 94143, United States
| | - Neal L Benowitz
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California, San Francisco, California 94143, United States
| | - Dorothy K Hatsukami
- Department of Psychiatry and Behavioral Sciences and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christopher M Havel
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California, San Francisco, California 94143, United States
| | - Eduardo Lazcano-Ponce
- School of Public Health of Mexico, National Institute of Public Health, 62100 Cuernavaca, Morelos, Mexico
| | - Andrew A Strasser
- Tobacco Center of Regulatory Science, Department of Psychiatry and Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Peyton Jacob
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California, San Francisco, California 94143, United States
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8
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Fujiki K, Tanaka K. Exploration of the Fluoride Reactivity of Aryltrifluoroborate on Selective Cleavage of Diphenylmethylsilyl Groups. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Katsumasa Fujiki
- Biofunctional Synthetic Chemistry Laboratory; Cluster for Pioneering Research; RIKEN; 2-1 Hirosawa 351-0198 Wako Saitama Japan
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory; Cluster for Pioneering Research; RIKEN; 2-1 Hirosawa 351-0198 Wako Saitama Japan
- Biofunctional Chemistry Laboratory; A. Butlerov Institute of Chemistry; Kazan Federal University; 18 Kremlyovskaya street 420008 Kazan Russia
- Department of Chemical Science and Engineering; School of Materials and Chemical Technology; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro-ku 152-8552 Tokyo Japan
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9
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Zhan XY, Zhang H, Dong Y, Yang J, He S, Shi ZC, Tang L, Wang JY. Chemoselective Hydrosilylation of the α,β-Site Double Bond in α,β- and α,β,γ,δ-Unsaturated Ketones Catalyzed by Macrosteric Borane Promoted by Hexafluoro-2-propanol. J Org Chem 2020; 85:6578-6592. [PMID: 32316729 DOI: 10.1021/acs.joc.0c00568] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The B(C6F5)3-catalyzed chemoselective hydrosilylation of α,β- and α,β,γ,δ-unsaturated ketones into the corresponding non-symmetric ketones in mild reaction conditions is developed. Nearly 55 substrates including those bearing reducible functional groups such as alkynyl, alkenyl, cyano, and aromatic heterocycles are chemoselectively hydrosilylated in good to excellent yields. Isotope-labeling studies revealed that hexafluoro-2-propanol also served as a hydrogen source in the process.
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Affiliation(s)
- Xiao-Yu Zhan
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Hua Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yu Dong
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jian Yang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Shuai He
- Southwest Minzu University, Chengdu 610041, P. R. China
| | - Zhi-Chuan Shi
- Southwest Minzu University, Chengdu 610041, P. R. China
| | - Lei Tang
- Laboratory of Anaesthesia & Critical Care Medicine, Translational Neuroscience Center and Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Ji-Yu Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China
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10
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Constantin T, Zanini M, Regni A, Sheikh NS, Juliá F, Leonori D. Aminoalkyl radicals as halogen-atom transfer agents for activation of alkyl and aryl halides. Science 2020; 367:1021-1026. [DOI: 10.1126/science.aba2419] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/31/2020] [Indexed: 12/17/2022]
Abstract
Organic halides are important building blocks in synthesis, but their use in (photo)redox chemistry is limited by their low reduction potentials. Halogen-atom transfer remains the most reliable approach to exploit these substrates in radical processes despite its requirement for hazardous reagents and initiators such as tributyltin hydride. In this study, we demonstrate that α-aminoalkyl radicals, easily accessible from simple amines, promote the homolytic activation of carbon-halogen bonds with a reactivity profile mirroring that of classical tin radicals. This strategy conveniently engages alkyl and aryl halides in a wide range of redox transformations to construct sp3-sp3, sp3-sp2, and sp2-sp2 carbon-carbon bonds under mild conditions with high chemoselectivity.
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Affiliation(s)
| | - Margherita Zanini
- Department of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - Alessio Regni
- Department of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - Nadeem S. Sheikh
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Fabio Juliá
- Department of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - Daniele Leonori
- Department of Chemistry, University of Manchester, Manchester M13 9PL, UK
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11
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Guan W, Liao J, Watson MP. Vinylation of Benzylic Amines via C-N Bond Functionalization of Benzylic Pyridinium Salts. SYNTHESIS-STUTTGART 2018; 50:3231-3237. [PMID: 30174353 PMCID: PMC6112771 DOI: 10.1055/s-0037-1610084] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cross-couplings of benzylic pyridinium salts and vinylboronic acids or esters have been developed. Via these benzylic pyridinium intermediates, benzylic amines can be engaged in these cross-couplings via C-N bond functionalization. This method boasts mild reaction conditions and excellent tolerance for heteroaryl substituents and a range of functional groups.
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Affiliation(s)
- Weiye Guan
- Department of Chemistry and Biochemistry, University of Delaware, 19716, USA
| | - Jennie Liao
- Department of Chemistry and Biochemistry, University of Delaware, 19716, USA
| | - Mary P Watson
- Department of Chemistry and Biochemistry, University of Delaware, 19716, USA
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12
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Yang CT, Han J, Liu J, Li Y, Zhang F, Yu HZ, Hu S, Wang X. Pd-Catalyzed Vinylation of Aryl Halides with Inexpensive Organosilicon Reagents Under Mild Conditions. Chemistry 2018; 24:10324-10328. [PMID: 29897649 DOI: 10.1002/chem.201802573] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/09/2018] [Indexed: 11/06/2022]
Abstract
Pd-catalyzed Hiyama vinylation reaction of non-activated aryl chlorides and bromides under mild conditions was developed. The use of efficient vinyl donors and electron-rich sterically hindered phosphine ligands was critical for the success of the reaction. The products of this transformation can be used for Am/Cm separation, an important challenge in nuclear fuel reprocessing. The substituent effect on Am/Cm separating selectivity was also achieved, which could contribute to the development of new chromatographic materials for the separation of Am and Cm.
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Affiliation(s)
- Chu-Ting Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Jun Han
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Jun Liu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Yi Li
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Fan Zhang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Hai-Zhu Yu
- Department of Chemistry and Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, 230026, P. R. China
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Xiaolin Wang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
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13
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Das UK, Clément R, Johannes CW, Robins EG, Jong H, Baker RT. One-pot Suzuki–Heck relay to prepare industrially valuable intermediates using the Pd–Cy*Phine catalyst system. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01344b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A rare example of a one-pot, palladium-catalyzed Suzuki–Heck sequence has been developed with applicability to APIs and organoelectronic materials.
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Affiliation(s)
- Uttam K. Das
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation
- University of Ottawa
- Ottawa
- Canada
| | - Roxanne Clément
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation
- University of Ottawa
- Ottawa
- Canada
| | - Charles W. Johannes
- Organic Chemistry
- Institute of Chemical & Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Singapore 138665
| | - Edward G. Robins
- Singapore Bioimaging Consortium (SBIC)
- Agency for Science, Technology and Research (A*STAR)
- Singapore 138667
| | - Howard Jong
- Organic Chemistry
- Institute of Chemical & Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Singapore 138665
| | - R. Tom Baker
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation
- University of Ottawa
- Ottawa
- Canada
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14
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Espinal-Viguri M, Mahon MF, Tyler SN, Webster RL. Iron catalysis for the synthesis of ligands: Exploring the products of hydrophosphination as ligands in cross-coupling. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Cai Y, Benischke AD, Knochel P, Gosmini C. Cobalt-Catalyzed Reductive Cross-Coupling Between Styryl and Benzyl Halides. Chemistry 2016; 23:250-253. [PMID: 27762460 DOI: 10.1002/chem.201603832] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Indexed: 12/14/2022]
Abstract
A simple and efficient protocol for the direct reductive cross-coupling between alkenyl and benzyl halides using a Co/Mn system has been developed. This reaction proceeds smoothly in the presence of [CoBr2 (PPh3 )2 ] as the catalyst, with NaI as an additive in acetonitrile with a broad scope of functionalized alkenyl and benzyl halides. Different functional groups are tolerated on both coupling partners, thus, significantly extending the general scope of transition-metal-catalyzed benzylation of alkenyl halides. Moderate to excellent yields were also obtained. From a mechanistic point of view, a radical chain mechanism was proposed. This reaction is stereospecific and some studies suggest the retention of the double-bond configuration.
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Affiliation(s)
- Yingxiao Cai
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128, Palaiseau, France
| | - Andreas D Benischke
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Corinne Gosmini
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128, Palaiseau, France
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16
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Yang B, Wang ZX. Nickel-Catalyzed Cross-Coupling of Allyl Alcohols with Aryl- or Alkenylzinc Reagents. J Org Chem 2016; 82:4542-4549. [DOI: 10.1021/acs.joc.6b02564] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Bo Yang
- CAS
Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhong-Xia Wang
- CAS
Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
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17
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Dindulkar SD, Jeong D, Kim H, Jung S. Functionalized β-cyclodextrin as supramolecular ligand and their Pd(OAc)2 complex: highly efficient and reusable catalyst for Mizoroki–Heck cross-coupling reactions in aqueous medium. Carbohydr Res 2016; 430:85-94. [DOI: 10.1016/j.carres.2016.04.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/08/2016] [Accepted: 04/25/2016] [Indexed: 12/11/2022]
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18
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McCammant MS, Shigeta T, Sigman MS. Palladium-Catalyzed 1,3-Difunctionalization Using Terminal Alkenes with Alkenyl Nonaflates and Aryl Boronic Acids. Org Lett 2016; 18:1792-5. [PMID: 27019228 PMCID: PMC5053098 DOI: 10.1021/acs.orglett.6b00517] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Pd-catalyzed 1,3-difunctionalization of terminal alkenes using 1,1-disubstituted alkenyl nonaflates and arylboronic acid coupling partners is reported. This transformation affords allylic arene products that are difficult to selectively access using traditional Heck cross-coupling methodologies. The evaluation of seldom employed 1,1-disubstituted alkenyl nonaflate coupling partners led to the elucidation of subtle mechanistic features of π-allyl stabilized Pd-intermediates. Good stereo- and regioselectivity for the formation of 1,3-addition products can be accessed through a minimization of steric interactions that emanate from alkenyl nonaflate substitution.
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Affiliation(s)
- Matthew S. McCammant
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT, USA
| | - Takashi Shigeta
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT, USA
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT, USA
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19
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Affiliation(s)
- Carmen Nájera
- Dpto. de Química Orgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA); University of Alicante, Apdo. 99; E-03080 Alicante Spain
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20
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Liu C, Li X, Wang X, Jin Z. Palladium-catalyzed efficient Suzuki–Miyaura reaction of potassium aryltrifluoroborates in water. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.05.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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21
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Takeda T, Teramoto Y, Inoue Y, Tsubouchi A. Preparation of 1,4-dienes by the reaction of titanocene cycloalkenylidenes with 1-alkenes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Wu F, Liu H, Lee LTL, Chen T, Wang M, Zhu L. New Organic Dyes Based on Biarylmethylene-Bridged Triphenylamine for Dye Sensitized Solar Cell. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Improving Transformations Through Organotrifluoroborates. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/978-3-319-13054-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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24
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Zhang Y, Yin SC, Lu JM. N-Heterocyclic carbene-palladium(II)-1-methylimidazole complex catalyzed allyl-aryl coupling of allylic alcohols with arylboronic acids in neat water. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Paul S, Islam MM, Islam SM. Suzuki–Miyaura reaction by heterogeneously supported Pd in water: recent studies. RSC Adv 2015. [DOI: 10.1039/c4ra17308b] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This review summarizes the progress made essentially in the last fifteen years in the Suzuki–Miyaura coupling reaction by heterogeneous palladium catalysis in water as the sole solvent.
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Affiliation(s)
- Susmita Paul
- Department of Chemistry
- University of Kalyani
- Nadia
- India
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26
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Drost RM, Bouwens T, van Leest NP, de Bruin B, Elsevier CJ. Convenient Transfer Semihydrogenation Methodology for Alkynes Using a PdII-NHC Precatalyst. ACS Catal 2014. [DOI: 10.1021/cs4011502] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ruben M. Drost
- Molecular Inorganic Chemistry, Van ‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
| | - Tessel Bouwens
- Molecular Inorganic Chemistry, Van ‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
| | - Nicolaas P. van Leest
- Molecular Inorganic Chemistry, Van ‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous Catalysis, Van ‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
| | - Cornelis J. Elsevier
- Molecular Inorganic Chemistry, Van ‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
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27
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28
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Zhao Y, Sun L, Zeng T, Wang J, Peng Y, Song G. Direct olefination of benzaldehydes into 1,3-diarylpropenes via a copper-catalyzed heterodomino Knoevenagel-decarboxylation-Csp3-H activation sequence. Org Biomol Chem 2014; 12:3493-8. [DOI: 10.1039/c4ob00155a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Copper-catalyzed direct olefination of benzaldehydes into unsymmetrical 1,3-diarylpropenes by a novel domino Knoevenagel-decarboxylation-Csp3-H activation sequence using simpler substrates like benzaldehydes.
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Affiliation(s)
- Yaping Zhao
- Shanghai Key Laboratory of Chemical Biology
- Institute of Pesticides and Pharmaceuticals
- East China University of Science and Technology
- Shanghai 200237, P.R. China
| | - Lu Sun
- Shanghai Key Laboratory of Chemical Biology
- Institute of Pesticides and Pharmaceuticals
- East China University of Science and Technology
- Shanghai 200237, P.R. China
| | - Tieqiang Zeng
- Shanghai Key Laboratory of Chemical Biology
- Institute of Pesticides and Pharmaceuticals
- East China University of Science and Technology
- Shanghai 200237, P.R. China
| | - Jiayi Wang
- Shanghai Key Laboratory of Chemical Biology
- Institute of Pesticides and Pharmaceuticals
- East China University of Science and Technology
- Shanghai 200237, P.R. China
| | - Yanqing Peng
- Shanghai Key Laboratory of Chemical Biology
- Institute of Pesticides and Pharmaceuticals
- East China University of Science and Technology
- Shanghai 200237, P.R. China
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology
- Institute of Pesticides and Pharmaceuticals
- East China University of Science and Technology
- Shanghai 200237, P.R. China
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29
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Cornelissen L, Vercruysse S, Sanhadji A, Riant O. Copper-Catalyzed Vinylsilane Allylation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301360] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Abstract
The nickel-catalyzed Suzuki-Miyaura coupling of aryl halides and phenol-derived substrates with aryl boronic acids using green solvents, such as 2-Me-THF and tert-amyl alcohol, is reported. This methodology employs the commercially available and air-stable precatalyst, NiCl2(PCy3)2, and gives biaryl products in synthetically useful to excellent yields. Using this protocol, bis(heterocyclic) frameworks can be assembled efficiently.
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Affiliation(s)
- Stephen D. Ramgren
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles, CA 90095–1569
| | - Liana Hie
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles, CA 90095–1569
| | - Yuxuan Ye
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles, CA 90095–1569
| | - Neil K. Garg
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles, CA 90095–1569
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31
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Baader S, Ohlmann DM, Gooßen LJ. Isomerizing Ethenolysis as an Efficient Strategy for Styrene Synthesis. Chemistry 2013; 19:9807-10. [DOI: 10.1002/chem.201301336] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Indexed: 11/06/2022]
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32
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Binkowska I, Gałęzowski W, Jarczewski A. π-Charge distribution in some (4-R1-phenyl)bis(ethylsulfonyl)methane and (4-R1-phenyl)bis(benzylsulfonyl)methane carbanions in acetonitrile. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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33
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Literature Survey Part A: Transition Metal-Catalyzed Reactions. MICROWAVES IN ORGANIC AND MEDICINAL CHEMISTRY 2012. [DOI: 10.1002/9783527647828.ch5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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34
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Riveiros R, Tato R, Pérez Sestelo J, Sarandeses LA. Rhodium-Catalyzed Allylic Substitution Reactions with Indium(III) Organometallics. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200104] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Chaudhary AR, Bedekar AV. Application of 1-(α-Aminobenzyl)-2-naphthols as Air-Stable Ligands for Pd-Catalyzed Mizoroki–Heck Coupling Reaction. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2010.544439] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Anju R. Chaudhary
- a Faculty of Science, Department of Chemistry , Maharaja Sayajirao University of Baroda , Vadodara , India
| | - Ashutosh V. Bedekar
- a Faculty of Science, Department of Chemistry , Maharaja Sayajirao University of Baroda , Vadodara , India
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36
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Peña-López M, Ayán-Varela M, Sarandeses LA, Sestelo JP. Palladium-catalyzed cross-coupling reactions of organogold(i) phosphanes with allylic electrophiles. Org Biomol Chem 2012; 10:1686-94. [DOI: 10.1039/c2ob06788a] [Citation(s) in RCA: 12] [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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37
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Narayana Kumar GGKS, Laali KK. Facile coupling of propargylic, allylic and benzylic alcohols with allylsilane and alkynylsilane, and their deoxygenation with Et3SiH, catalyzed by Bi(OTf)3 in [BMIM][BF4] ionic liquid (IL), with recycling and reuse of the IL. Org Biomol Chem 2012; 10:7347-55. [DOI: 10.1039/c2ob26046h] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Hashimoto T, Hatakeyama T, Nakamura M. Stereospecific Cross-Coupling between Alkenylboronates and Alkyl Halides Catalyzed by Iron–Bisphosphine Complexes. J Org Chem 2011; 77:1168-73. [DOI: 10.1021/jo202151f] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Toru Hashimoto
- Department
of Energy and Hydrocarbon Chemistry, Graduate School
of Engineering, and ‡International Research Center for Elements Science,
Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Takuji Hatakeyama
- Department
of Energy and Hydrocarbon Chemistry, Graduate School
of Engineering, and ‡International Research Center for Elements Science,
Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Masaharu Nakamura
- Department
of Energy and Hydrocarbon Chemistry, Graduate School
of Engineering, and ‡International Research Center for Elements Science,
Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
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39
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Zhang G, Zhao X, Yan Y, Ding C. Direct Arylation under Catalysis of an Oxime-Derived Palladacycle: Search for a Phosphane-Free Method. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101400] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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40
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Scrivanti A, Beghetto V, Bertoldini M, Matteoli U. Catalyst-Free Suzuki-Type Coupling of Allylic Bromides with Arylboronic Acids. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101527] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Sharrett Z, Villalpando A, Fronczek FR, Isovitsch R. The synthesis, X-ray structure analysis, and photophysical characterization of 3,3′-diacetylstilbene. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.08.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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42
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Molnár Á. Efficient, selective, and recyclable palladium catalysts in carbon-carbon coupling reactions. Chem Rev 2011; 111:2251-320. [PMID: 21391571 DOI: 10.1021/cr100355b] [Citation(s) in RCA: 768] [Impact Index Per Article: 59.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Árpád Molnár
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary.
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43
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Vicente J, Shenoy RV, Martínez-Viviente E, Jones PG. Synthesis of Pd3Tl and Pd6Tl2 complexes based on a trinuclear aryl-palladium(II) complex acting as a metallaligand toward thallium(I) through Tl-arene and Tl-I bonds. Inorg Chem 2011; 50:7189-94. [PMID: 21699175 DOI: 10.1021/ic2007793] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The metallaligand [(PdIL(2))(3)(C(6)Me(3)-1,3,5)] (L(2) = 4,4'-di-tert-butyl-2-2'-bipyridine = tbbpy) reacts with TlOTf to afford the complex [{(PdIL(2))(3)C(6)Me(3)-1,3,5}Tl]OTf, which exists in the solid state as a 2:1 mixture of monomer and dimer, both showing Tl(I)-I and Tl(I)-η(6)-mesitylene bonds. In solution, only the monomer is observed. Heating of toluene solutions of [(PdIL(2))(3)(C(6)Me(3)-1,3,5)] affords the dinuclear complex [(PdIL(2))(2)(C(6)HMe(3)-1,3,5)].
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Affiliation(s)
- José Vicente
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E-30071, Murcia, Spain.
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44
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Cívicos JF, Alonso DA, Nájera C. Oxime Palladacycle-Catalyzed Suzuki-Miyaura Alkenylation of Aryl, Heteroaryl, Benzyl, and Allyl Chlorides under Microwave Irradiation Conditions. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100019] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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45
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Krasovskaya V, Krasovskiy A, Bhattacharjya A, Lipshutz BH. "On water" sp3-sp2 cross-couplings between benzylic and alkenyl halides. Chem Commun (Camb) 2011; 47:5717-9. [PMID: 21487612 PMCID: PMC3352766 DOI: 10.1039/c1cc11087j] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic-solvent-free cross-couplings between benzylic and alkenyl halides have been developed. Various alkenyl halides can be efficiently benzylated by combining the precursor halides in the presence of Zn dust and a Pd catalyst at room temperature, in water as the only medium.
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Affiliation(s)
- Valeria Krasovskaya
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Arkady Krasovskiy
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Anish Bhattacharjya
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Bruce H. Lipshutz
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, USA
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46
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Liao L, Jana R, Urkalan KB, Sigman MS. A palladium-catalyzed three-component cross-coupling of conjugated dienes or terminal alkenes with vinyl triflates and boronic acids. J Am Chem Soc 2011; 133:5784-7. [PMID: 21449562 PMCID: PMC3084658 DOI: 10.1021/ja201358b] [Citation(s) in RCA: 195] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A three-component coupling of vinyl triflates and boronic acids to alkenes catalyzed by palladium is reported. Using 1,3-dienes, selective 1,2-alkene difunction-alization is observed, whereas the use of terminal alkenes results in 1,1-alkene difunctionalization. The reaction outcome is attributed to the formation of stabilized, cationic Pd-π-allyl intermediates to regulate β-hydride elimination.
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Affiliation(s)
- Longyan Liao
- Department of Chemistry, University of Utah, 315 S. 1400 E. Salt Lake City, UT 84112-085, USA
| | - Ranjan Jana
- Department of Chemistry, University of Utah, 315 S. 1400 E. Salt Lake City, UT 84112-085, USA
| | - Kaveri Balan Urkalan
- Department of Chemistry, University of Utah, 315 S. 1400 E. Salt Lake City, UT 84112-085, USA
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 S. 1400 E. Salt Lake City, UT 84112-085, USA
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47
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48
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Chatterjee T, Dey R, Ranu BC. An easy access to styrenes: trans aryl 1,3-, 1,4- and 1,5-dienes, and 1,3,5-trienes by Hiyama cross-coupling catalyzed by palladium nanoparticles. NEW J CHEM 2011. [DOI: 10.1039/c0nj01019g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Wang J, Guo X, Li CJ. Iridium as a general catalyst for the decarbonylative addition of aldehydes to alkynes. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.08.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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50
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Chen C, Voss T, Fröhlich R, Kehr G, Erker G. 1,1-carboboration of 1-alkynes: a conceptual alternative to the hydroboration reaction. Org Lett 2010; 13:62-5. [PMID: 21128629 DOI: 10.1021/ol102544x] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Strongly electrophilic boranes R-B(C(6)F(5))(2) react readily with a variety of 1-alkynes by means of a 1,1-carboboration reaction to yield alkenylborane products, which can subsequently be used as reagents in metal catalyzed cross-coupling reactions.
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Affiliation(s)
- Chao Chen
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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