101
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Sharma P, Kaur S, Kaur S, Singh P. Near-IR oxime-based solvatochromic perylene diimide probe as a chemosensor for Pd species and Cu 2+ ions in water and live cells. Photochem Photobiol Sci 2020; 19:504-514. [PMID: 32236245 DOI: 10.1039/c9pp00487d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A near-IR perylene diimide probe (OPR-PDI) containing an oxime-propargyl hybrid moiety at the bay position, was designed and synthesized for detection of Pd species and Cu2+ ions in 90% water, the solid state and MG-63 live cells. The aggregation tendency of OPR-PDI in different polarity solvents transmits solvatochromic and fluorochromic properties to differentiate certain organic solvents. Supramolecular aggregates of OPR-PDI in 90% water act as a dual chemosensor for palladium (Pd) species via de-propargylation or hydrolysis of the Schiff-base and Cu2+ ions via complexation with the O/N binding site with a low limit of detection (LOD) of the order of 7.9 × 10-8 M and 3.4 × 10-7 M respectively. TLC strips coated with OPR-PDI can be applied for sensing of Pd0 and Cu2+ ions in the solid state at levels as low as 34.6 ng cm-2 and 10.5 ng cm-2. OPR-PDI imprinted TLC strips could be used as paper sheets for writing coloured alphabets using Pd0 and Cu2+ ions as ink. Moreover, MTT assay showed that OPR-PDI has very low cytotoxicity (IC50 = 230 μM), good permeability, biocompatibility and can be applied for bio-imaging of Pd species and Cu2+ ions in MG-63 cells. DFT calculations, and cyclic voltammetric (CV) and NMR titration studies have also been discussed.
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Affiliation(s)
- Poonam Sharma
- Department of Chemistry, UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, 143 005, India
| | - Sandeep Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143 005, India
| | - Satwinderjeet Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143 005, India
| | - Prabhpreet Singh
- Department of Chemistry, UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, 143 005, India.
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102
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Qin Y, Han J, Ju C, Zhao D. Ring Expansion to 6‐, 7‐, and 8‐Membered Benzosilacycles through Strain‐Release Silicon‐Based Cross‐Coupling. Angew Chem Int Ed Engl 2020; 59:8481-8485. [DOI: 10.1002/anie.202001539] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Jie‐Lian Han
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Cheng‐Wei Ju
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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103
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Lu MZ, Ding X, Shao C, Hu Z, Luo H, Zhi S, Hu H, Kan Y, Loh TP. Direct Hiyama Cross-Coupling of (Hetero)arylsilanes with C(sp 2)-H Bonds Enabled by Cobalt Catalysis. Org Lett 2020; 22:2663-2668. [PMID: 32182081 DOI: 10.1021/acs.orglett.0c00631] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a chelation-assisted C-H arylation of various indoles with sterically and electronically diverse (hetero)arylsilanes enabled by cost-effective Cp*-free cobalt catalysis. Key to the success of this strategy is the judicious choice of copper(II) fluoride as a bifunctional sliane activator and catalyst reoxidant. This methodology features a broad substrate scope and good functional group compatibility. The synthetic versatility of this protocol has been highlighted by the gram-scale synthesis and late-stage diversification of biologically active molecules.
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Affiliation(s)
- Ming-Zhu Lu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Xin Ding
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Changdong Shao
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Zhengsong Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Sanjun Zhi
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Teck-Peng Loh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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104
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Han J, Qin Y, Ju C, Zhao D. Divergent Synthesis of Vinyl‐, Benzyl‐, and Borylsilanes: Aryl to Alkyl 1,5‐Palladium Migration/Coupling Sequences. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jie‐Lian Han
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
| | - Cheng‐Wei Ju
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
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105
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Han JL, Qin Y, Ju CW, Zhao D. Divergent Synthesis of Vinyl-, Benzyl-, and Borylsilanes: Aryl to Alkyl 1,5-Palladium Migration/Coupling Sequences. Angew Chem Int Ed Engl 2020; 59:6555-6560. [PMID: 31981459 DOI: 10.1002/anie.201914740] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/19/2019] [Indexed: 12/31/2022]
Abstract
Organosilicon compounds have been extensively utilized both in industry and academia. Studies on the syntheses of diverse organosilanes is highly appealing. Through-space metal/hydrogen shifts allow functionalization of C-H bonds at a remote site, which are otherwise difficult to achieve. However, until now, an aryl to alkyl 1,5-palladium migration process seems to have not been presented. Reported herein is the remote olefination, arylation, and borylation of a methyl group on silicon to access diverse vinyl-, benzyl-, and borylsilanes, constituting a unique C(sp3 )-H transformation based on a 1,5-palladium migration process.
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Affiliation(s)
- Jie-Lian Han
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Cheng-Wei Ju
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
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106
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Urbitsch F, Elbert BL, Llaveria J, Streatfeild PE, Anderson EA. A Modular, Enantioselective Synthesis of Resolvins D3, E1, and Hybrids. Org Lett 2020; 22:1510-1515. [PMID: 32031820 PMCID: PMC7146891 DOI: 10.1021/acs.orglett.0c00089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Indexed: 12/31/2022]
Abstract
Resolvins D3 and E1 are important signaling molecules in the resolution of inflammation. Here, we report a convergent and flexible strategy to prepare these natural products using Hiyama-Denmark coupling of five- and six-membered cyclic alkenylsiloxanes to connect three resolvin fragments, and control the stereochemistry of the natural product (Z)-alkenes. The modular nature of this approach enables the synthesis of novel resolvin hybrids, opening up opportunities for more-extensive investigations of resolvin biology.
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Affiliation(s)
- Felix Urbitsch
- Chemistry
Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Bryony L. Elbert
- Chemistry
Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Josep Llaveria
- UCB
Pharma, Ltd., 216 Bath
Road, Slough, SL1 3WE, United Kingdom
| | | | - Edward A. Anderson
- Chemistry
Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
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107
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Wu LJ, Yang LF, Li JH, Wang QA. Dicarbonylative benzannulation of 3-acetoxy-1,4-enynes with CO and silylboranes by Pd and Cu cooperative catalysis: one-step access to 3-hydroxyarylacylsilanes. Chem Commun (Camb) 2020; 56:1669-1672. [PMID: 31939456 DOI: 10.1039/c9cc09077k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A new, general Pd/Cu-cocatalysed dicarbonylative benzannulation of 3-acetoxy-1,4-enynes with CO and silylboranes is described. The method utilizes CO as both a one-carbon (C1) unit and an external addition functional reagent to achieve an unprecedented dicarbonylative benzannulation process, and represents a facile, efficient route to 3-hydroxyarylacylsilanes. Mechanistically, the silyl-Cu intermediate formed from CuF2 and silylboranes, and silyl-Pd intermediate generated by transmetallation are two key factors for successfully targeting the reaction and selectivity.
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Affiliation(s)
- Li-Jun Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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108
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Jiang YN, Zeng JH, Yang Y, Liu ZK, Chen JJ, Li DC, Chen L, Zhan ZP. A conjugated microporous polymer as a recyclable heterogeneous ligand for highly efficient regioselective hydrosilylation of allenes. Chem Commun (Camb) 2020; 56:1597-1600. [PMID: 31935003 DOI: 10.1039/c9cc09387g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Pyridines containing adjacent C[triple bond, length as m-dash]C bonds were utilized as ligand units and integrated into the skeleton of conjugated microporous polymers. The resultant Pd-CMP-1 was first applied as a highly efficient heterogeneous catalytic system for Pd-catalyzed allene hydrosilylation towards a wide range of allenes to produce branched allylsilanes with high regioselectivity. The ligand units of the polymer, along with the confinement effect of the porous structure, jointly regulated the regioselectivity. The parts-per-million (ppm) levels of Pd, coordinated with the recyclable heterogeneous ligand, show promise for industrial applications. This work opens a new front of using CMP as an intriguing platform for developing highly efficient catalysts to control the regioselectivities in allene hydrosilylation.
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Affiliation(s)
- Ya-Nan Jiang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Jia-Hao Zeng
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Ying Yang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Zhi-Kai Liu
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Jun-Jia Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Ding-Chang Li
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Li Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
| | - Zhuang-Ping Zhan
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, People's Republic of China.
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109
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Liu S, Zhang T, Zhu L, Liu F, Bai R, Lan Y. Layered Chirality Relay Model in Rh(I)-Mediated Enantioselective C–Si Bond Activation: A Theoretical Study. Org Lett 2020; 22:2124-2128. [DOI: 10.1021/acs.orglett.9b04636] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shihan Liu
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
| | - Tao Zhang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
| | - Fenru Liu
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
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110
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Prybil J, Wallace R, Warren A, Klingman J, Vaillant R, Hall MB, Yang X, Brennessel WW, Chin RM. Silylation of Pyridine, Picolines, and Quinoline with a Zinc Catalyst. ACS OMEGA 2020; 5:1528-1539. [PMID: 32010826 PMCID: PMC6990635 DOI: 10.1021/acsomega.9b03317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
Zn(OTf)2 (OTf- = trifluoromethanesulfonate) catalyzes the silylation of pyridine, 3-picoline, and quinoline to afford the silylated products, where the silyl groups are meta to the nitrogen. The isolated yields of the products range from 41 to 26%. The 2- and 4-picolines yielded the silylmethylpyridines, where the CH3 groups were silylated instead of the ring. The pyridine silylation can occur via two separate pathways, involving either a 1,4- or a 1,2-hydrosilylation of pyridine as the first step. A byproduct of the pyridine silylation is a head-to-tail dimerization of N-silyl-1,4-dihydropyridine to form a diazaditwistane molecule.
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Affiliation(s)
- Joshua
W. Prybil
- Department
of Chemistry and Biochemistry, University
of Northern Iowa, Cedar
Falls, Iowa 50614-0423, United States
| | - Rodney Wallace
- Department
of Chemistry and Biochemistry, University
of Northern Iowa, Cedar
Falls, Iowa 50614-0423, United States
| | - Alexandra Warren
- Department
of Chemistry and Biochemistry, University
of Northern Iowa, Cedar
Falls, Iowa 50614-0423, United States
| | - Jordan Klingman
- Department
of Chemistry and Biochemistry, University
of Northern Iowa, Cedar
Falls, Iowa 50614-0423, United States
| | - Romane Vaillant
- École
nationale supérieure de chimie de Rennes, Sciences Chimiques
de Rennes, Rennes, Bretagne 35700, France
| | - Michael B. Hall
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Xin Yang
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - William W. Brennessel
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Robert M. Chin
- Department
of Chemistry and Biochemistry, University
of Northern Iowa, Cedar
Falls, Iowa 50614-0423, United States
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111
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Fu Z, Hao G, Fu Y, He D, Tuo X, Guo S, Cai H. Transition metal-free electrocatalytic halodeborylation of arylboronic acids with metal halides MX (X = I, Br) to synthesize aryl halides. Org Chem Front 2020. [DOI: 10.1039/c9qo01139k] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and regioselective ipso-halogenation of diverse arylboronic acids with metal halide salts MX (X = I, Br) has been well established under electrochemical conditions.
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Affiliation(s)
- Zhengjiang Fu
- College of Chemistry
- Nanchang University
- Nanchang
- China
- State Key Laboratory of Structural Chemistry
| | - Guangguo Hao
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | - Yaping Fu
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | - Dongdong He
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | - Xun Tuo
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | - Shengmei Guo
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | - Hu Cai
- College of Chemistry
- Nanchang University
- Nanchang
- China
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112
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Yang H, Shen Y, Xiao Z, Liu C, Yuan K, Ding Y. The direct trifluoromethylsilylation and cyanosilylation of aldehydes via an electrochemically induced intramolecular pathway. Chem Commun (Camb) 2020; 56:2435-2438. [DOI: 10.1039/c9cc08975f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The trifluoromethylsilylation and cyanosilylation of aldehydes via the intramolecular cleavage of Si–CN and Si–CF3 bonds are developed based on electrochemically induced Si–O affinity.
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Affiliation(s)
- Hui Yang
- Tianjin Key Laboratory of Advanced Functional Porous Materials
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Yongli Shen
- Tianjin Key Laboratory of Advanced Functional Porous Materials
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Zihui Xiao
- Tianjin Key Laboratory of Advanced Functional Porous Materials
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Caiyan Liu
- Tianjin Key Laboratory of Advanced Functional Porous Materials
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Kedong Yuan
- Tianjin Key Laboratory of Advanced Functional Porous Materials
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Yi Ding
- Tianjin Key Laboratory of Advanced Functional Porous Materials
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
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113
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Zeng JH, Chen JJ, Chen L, Zhan ZP. Access to branched allylsilanes by nickel-catalyzed regioselective hydrosilylation of allenes. Org Chem Front 2020. [DOI: 10.1039/d0qo00156b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A Ni(acac)2/Xantphos-catalyzed hydrosilylation of allenes has been developed.
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Affiliation(s)
- Jia-Hao Zeng
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Jun-Jia Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Li Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
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114
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Dong Y, Zhang H, Yang J, He S, Shi ZC, Zhang XM, Wang JY. B(C 6F 5) 3-Catalyzed C-C Coupling of 1,4-Naphthoquinones with the C-3 Position of Indole Derivatives in Water. ACS OMEGA 2019; 4:21567-21577. [PMID: 31867553 PMCID: PMC6921613 DOI: 10.1021/acsomega.9b03328] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
An atom-economical and environmentally benign approach for the synthesis of indole-substituted 1,4-naphthoquinones from indoles and 1,4-naphthoquinones using readily available Lewis acidic B(C6F5)3 in water and with the recycling of water and part of the catalyst is reported. The reaction proceeded through the B(C6F5)3-catalyzed C(sp2)-H and C(sp2)-H bond coupling of 1,4-naphthoquinones with the C-3 position of indole derivatives in water. This methodology provides a facile protocol for the synthesis of some new indole-substituted 1,4-naphthoquinones in satisfactory yields and with a broad substrate scope. When compared to known methods for the synthesis of indole-substituted 1,4-naphthoquinones, this protocol is practical and efficient and does not require a transition-metal catalyst or toxic organic solvents. In addition, we utilized a simple filtration process for complete recycling of the solvent and the part of the catalyst in each reaction cycle.
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Affiliation(s)
- Yu Dong
- Chengdu
Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hua Zhang
- Chengdu
Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jian Yang
- Chengdu
Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shuai He
- Southwest
Minzu University, Chengdu 610041, P. R. China
| | - Zhi-Chuan Shi
- Southwest
Minzu University, Chengdu 610041, P. R. China
| | - Xiao-Mei Zhang
- Chengdu
Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
| | - Ji-Yu Wang
- Chengdu
Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
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115
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Han C, Zhang Z, Xu S, Wang K, Chen K, Zhao J. Palladium-Catalyzed Hiyama Coupling of Benzylic Ammonium Salts via C–N Bond Cleavage. J Org Chem 2019; 84:16308-16313. [DOI: 10.1021/acs.joc.9b02554] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Chunyu Han
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Zhenming Zhang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Silin Xu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Kai Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Kaiting Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Junfeng Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, Guangdong, P.R. China
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116
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Gudmundsson HG, Kuper CJ, Cornut D, Urbitsch F, Elbert BL, Anderson EA. Synthesis of Cyclic Alkenyl Dimethylsiloxanes from Alkynyl Benzyldimethylsilanes and Application in Polyene Synthesis. J Org Chem 2019; 84:14868-14882. [PMID: 31646859 DOI: 10.1021/acs.joc.9b01664] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclic dimethylalkenylsiloxanes, useful motifs for (Z)-selective Hiyama cross-coupling, are accessed from alkynyl benzyldimethylsilanes featuring adjacent allylic or homoallylic oxygen substituents by semihydrogenation/debenzylation/cyclization. While formation of 5- and 6-membered rings can be achieved from the free alcohols using fluoride or silanolate, allylic acetate precursors to 5-membered rings display distinct modes of activation. The utility of these compounds is demonstrated through the preparation of a variety of (Z)-alkene-containing polyenes and application to a concise total synthesis of leukotriene B3.
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Affiliation(s)
| | - Christian J Kuper
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Damien Cornut
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Felix Urbitsch
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Bryony L Elbert
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Edward A Anderson
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
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117
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Rivas A, Pérez-Revenga V, Alvarez R, de Lera AR. Bidirectional Hiyama-Denmark Cross-Coupling Reactions of Bissilyldeca-1,3,5,7,9-pentaenes for the Synthesis of Symmetrical and Non-Symmetrical Carotenoids. Chemistry 2019; 25:14399-14407. [PMID: 31456273 DOI: 10.1002/chem.201903080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/20/2019] [Indexed: 02/02/2023]
Abstract
The construction of the carotenoid skeleton by Pd-catalyzed Csp2 -Csp2 cross-coupling reactions of symmetrical and non-symmetrical 1,10-bissilyldeca-1,3,5,7,9-pentaenes and the corresponding complementary alkenyl iodides has been developed. Reaction conditions for these bidirectional and orthogonal Hiyama-Denmark cross-coupling reactions of bisfunctionalized pentaenes are mild and the carotenoid products preserve the stereochemical information of the corresponding oligoene partners. The carotenoids synthesized in this manner include β,β-carotene and (3R,3'R)-zeaxanthin (symmetrical) as well as 9-cis-β,β-carotene, 7,8-dihydro-β,β-carotene and β-cryptoxanthin (non-symmetrical).
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Affiliation(s)
- Aurea Rivas
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Víctor Pérez-Revenga
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Rosana Alvarez
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
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118
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González J, Schäfer P, Fletcher SP. Highly Enantioselective Hiyama Cross-Coupling via Rh-Catalyzed Allylic Arylation of Racemic Allyl Chlorides. Organometallics 2019; 38:3991-3995. [PMID: 32055086 PMCID: PMC7009026 DOI: 10.1021/acs.organomet.9b00197] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Indexed: 01/17/2023]
Abstract
Highly enantioselective Hiyama cross-coupling reactions have been achieved through rhodium(I)-catalyzed dynamic kinetic asymmetric transformations between aryl siloxanes and cyclic racemic allyl halides. This process affords valuable enantiomerically enriched aryl-substituted cyclic allyl products and is compatible with heterocyclic allyl chloride electrophiles.
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Affiliation(s)
- Jesús González
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Philipp Schäfer
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Stephen P. Fletcher
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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119
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Zarnegaryan A, Dehbanipour Z, Elhamifar D. Graphene oxide supported Schiff-base/palladium complex: An efficient and recoverable catalyst for Suzuki–Miyaura coupling reaction. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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120
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Cu/chiral phosphoric acid-catalyzed radical-initiated asymmetric aminosilylation of alkene with hydrosilane. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9528-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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121
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Sudharsan M, Thirumoorthy K, Nethaji M, Suresh D. Synthesis, Characterization and Theoretical Investigation on Thiazoline‐Derived Palladium‐Complexes‐Catalyzed Denitrogenative Cross‐Coupling of Aryl Halides with Arylhydrazines. ChemistrySelect 2019. [DOI: 10.1002/slct.201902137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Murugesan Sudharsan
- Department of ChemistrySchool of Chemical and BiotechnologySASTRA Deemed University, Thanjavur, Tamil Nadu 613 401 India
| | - Krishnan Thirumoorthy
- Department of ChemistrySchool of Advanced SciencesVellore Institute of Technology University, Vellore Tamil Nadu 632 014 India
| | - Munirathinam Nethaji
- Department of Inorganic and Physical ChemistryIndian Institute of Science, Bangalore Tamilnadu 400 001 India
| | - Devarajan Suresh
- Department of ChemistrySchool of Chemical and BiotechnologySASTRA Deemed University, Thanjavur, Tamil Nadu 613 401 India
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122
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Wilkinson JR, Nuyen CE, Carpenter TS, Harruff SR, Van Hoveln R. Copper-Catalyzed Carbon–Silicon Bond Formation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02762] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jake R. Wilkinson
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809, United States
| | - Courtney E. Nuyen
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809, United States
| | - Trent S. Carpenter
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809, United States
| | - Stephan R. Harruff
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809, United States
| | - Ryan Van Hoveln
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809, United States
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123
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Lee H, Lee Y, Cho SH. Palladium-Catalyzed Chemoselective Negishi Cross-Coupling of Bis[(pinacolato)boryl]methylzinc Halides with Aryl (Pseudo)Halides. Org Lett 2019; 21:5912-5916. [DOI: 10.1021/acs.orglett.9b02050] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hyojae Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Yeosan Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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124
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Jiang C, Wu W, Lu H, Yu T, Xu W, Wei H. Rhodium‐Catalyzed Hiyama Coupling Reaction of Unstrained Ketones via C−C Bond Cleavage. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900295] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cheng Jiang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of EducationCollege of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Wen‐Qiang Wu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of EducationCollege of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of EducationCollege of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Tian‐Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of EducationCollege of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Wen‐Hua Xu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of EducationCollege of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of EducationCollege of Chemistry & Materials Science Northwest University Xi'an 710127 China
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125
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Supported Au Nanoparticles‐Catalyzed Regioselective Dehydrogenative Disilylation of Allenes by Dihydrosilane. Chemistry 2019; 25:9170-9173. [DOI: 10.1002/chem.201901408] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/16/2019] [Indexed: 12/14/2022]
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126
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Pearson CM, Fyfe JWB, Snaddon TN. A Regio‐ and Stereodivergent Synthesis of Homoallylic Amines by a One‐Pot Cooperative‐Catalysis‐Based Allylic Alkylation/Hofmann Rearrangement Strategy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905426] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Colin M. Pearson
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - James W. B. Fyfe
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Thomas N. Snaddon
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
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127
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Pearson CM, Fyfe JWB, Snaddon TN. A Regio- and Stereodivergent Synthesis of Homoallylic Amines by a One-Pot Cooperative-Catalysis-Based Allylic Alkylation/Hofmann Rearrangement Strategy. Angew Chem Int Ed Engl 2019; 58:10521-10527. [PMID: 31132203 DOI: 10.1002/anie.201905426] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Indexed: 01/19/2023]
Abstract
Herein, we report a modular synthetic route to linear and branched homoallylic amines that operates through a sequential one-pot Lewis base/transition-metal catalyzed allylic alkylation/Hofmann rearrangement strategy. This protocol is operationally trivial, proceeds from simple and easily prepared substrates and catalysts, and enables all aspects of regio- and stereoselectivity to be controlled through a conserved experimental protocol. Overall, the high levels of enantio-, regio-, and diastereoselectivity obtained, in concert with the ability to access orthogonally protected or free amines, render this a straightforward and effective approach for the preparation of useful enantioenriched homoallylic amines. We have also demonstrated the utility of the products in the context of pharmaceutical synthesis.
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Affiliation(s)
- Colin M Pearson
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - James W B Fyfe
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Thomas N Snaddon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
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128
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Abstract
At the advent of cross-coupling chemistry, carbon electrophiles based on halides or pseudohalides were the only suitable electrophilic coupling partners. Almost two decades passed before the first cross-coupling reaction of heteroatom-based electrophiles was reported. Early work by Murai and Tanaka initiated investigations into silicon electrophiles. Narasaka and Johnson pioneered the way in the use of nitrogen electrophiles, while Suginome began the exploration of boron electrophiles. The chemistry reviewed within provides perspective on the use of heteroatomic electrophiles, specifically silicon-, nitrogen-, boron-, oxygen-, and phosphorus-based electrophiles in transition-metal catalyzed cross-coupling. For the purposes of this review, a loose definition of cross-coupling is utilized; all reactions minimally proceed via an oxidative addition event. Although not cross-coupling in a traditional sense, we have also included catalyzed reactions that join a heteroatomic electrophile with an in situ generated nucleophile. However, for brevity, those involving hydroamination or C-H activation as a key step are largely excluded. This work includes primary references published up to and including October 2018.
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Affiliation(s)
- Katerina M Korch
- Department of Chemistry and Biochemistry , University of Delaware Newark , Delaware 19716 , United States
| | - Donald A Watson
- Department of Chemistry and Biochemistry , University of Delaware Newark , Delaware 19716 , United States
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129
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Onoabedje EA, Okoro UC. Ligand-supported palladium-catalyzed cross-coupling reactions of (hetero) aryl chlorides. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1587778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Uchechukwu Chris Okoro
- Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
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130
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Liu S, Pan P, Fan H, Li H, Wang W, Zhang Y. Photocatalytic C-H silylation of heteroarenes by using trialkylhydrosilanes. Chem Sci 2019; 10:3817-3825. [PMID: 31015923 PMCID: PMC6457191 DOI: 10.1039/c9sc00046a] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 02/18/2019] [Indexed: 12/14/2022] Open
Abstract
The efficient and selective C-H silylation of heteroarenes, especially the pharmaceutically relevant electron-deficient heteroarenes, represents a great challenge in organic synthesis. Herein we wish to report a distinctive visible light-promoted photocatalytic C-H silylation approach that enables the direct coupling of trialkylhydrosilanes with both electron-deficient and -rich heteroarenes as well as with cyano-substituted arenes in moderate to high yields and with good regioselectivity. The protocol features operational simplicity, mild reaction conditions, and the use of safe and readily available Na2S2O8, bis(trimethylsilyl) peroxide (BTMSPO) or iPr3SiSH as the radical initiators. Notably, the challenging bulky and inert trialkylhydrosilanes, such as (t-butyldimethyl)silane ( t BuMe2SiH) and (triisopropyl)silane (iPr3SiH), work smoothly with the protocol. Moreover, despite the higher stability of t BuMe2Si silylation products, our studies revealed their great reactivity and versatility in diverse C-Si-based chemical transformations, providing an operationally simple, low-cost, and environmentally benign synthetic technology for molecule construction and elaboration.
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Affiliation(s)
- Shihui Liu
- State Key Laboratory of Bioengineering Reactor , Shanghai Key Laboratory of New Drug Design and School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , P. R. China . ;
| | - Peng Pan
- State Key Laboratory of Bioengineering Reactor , Shanghai Key Laboratory of New Drug Design and School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , P. R. China . ;
| | - Huaqiang Fan
- State Key Laboratory of Bioengineering Reactor , Shanghai Key Laboratory of New Drug Design and School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , P. R. China . ;
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor , Shanghai Key Laboratory of New Drug Design and School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , P. R. China . ;
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor , Shanghai Key Laboratory of New Drug Design and School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , P. R. China . ;
- Department of Pharmacology and Toxicology , BIO5 Institute , University of Arizona , Tucson , Arizona 85721-0207 , USA
| | - Yongqiang Zhang
- State Key Laboratory of Bioengineering Reactor , Shanghai Key Laboratory of New Drug Design and School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , P. R. China . ;
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131
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Komiyama T, Minami Y, Hiyama T. Cross-coupling Reaction of Aryl(triethyl)silanes with Aryl Chlorides: An Easy Access to Oligothiophenes. CHEM LETT 2019. [DOI: 10.1246/cl.181018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Takeshi Komiyama
- Department of Applied Chemistry, Graduate School of Science and Engineering, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Yasunori Minami
- Research and Development Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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132
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Li W, Chen W, Zhou B, Xu Y, Deng G, Liang Y, Yang Y. NBE-Controlled Palladium-Catalyzed Interannular Selective C-H Silylation: Access to Divergent Silicon-Containing 1,1'-Biaryl-2-Acetamides. Org Lett 2019; 21:2718-2722. [PMID: 30924667 DOI: 10.1021/acs.orglett.9b00690] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel palladium-catalyzed interannular selective C-H silylation of 1,1'-biaryl-2-acetamides is described. The combination of palladium catalyst with copper oxidant enables meta- or ortho-selective C-H silylation by employing hexamethyldisilane as a trimethylsilyl source, which relies on the control of NBE derivatives as a switch, thus providing straightforward access to divergent silicon-containing 1,1'-biaryl-2-acetamides.
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Affiliation(s)
- Wenguang Li
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Wenqi Chen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Bang Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Yankun Xu
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province , Hunan Normal University , Changsha , Hunan 410081 , China
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133
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Copper-catalyzed asymmetric silylative cyclization of cyclohexadienone-containing 1,6-enynes. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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134
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Rush Scaggs W, Scaggs TD, Snaddon TN. An enantioselective synthesis of α-alkylated pyrroles via cooperative isothiourea/palladium catalysis. Org Biomol Chem 2019; 17:1787-1790. [PMID: 30483696 PMCID: PMC6499370 DOI: 10.1039/c8ob02600a] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein we describe the direct enantioselective Lewis base/Pd catalysed α-allylation of pyrrole acetic acid esters. This provides high isolated yields of highly enantioenriched products and exhibits broad reaction scope with respect to both reaction partners. The products can be readily elaborated in a manner which points towards potential applications in target directed synthesis.
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Affiliation(s)
- W Rush Scaggs
- Department of Chemistry, Indiana University, 800 E Kirkwood Ave., Bloomington, IN 47405, USA.
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135
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Walkowiak J, Salamon K, Franczyk A, Stefanowska K, Szyling J, Kownacki I. Pt-Catalyzed Hydrosilylation of 1,3-Diynes with Triorganosilanes: Regio- and Stereoselective Synthesis of Mono- or Bis-silylated Adducts. J Org Chem 2019; 84:2358-2365. [DOI: 10.1021/acs.joc.8b03143] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jędrzej Walkowiak
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
| | - Katarzyna Salamon
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Adrian Franczyk
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
| | - Kinga Stefanowska
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Jakub Szyling
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Ireneusz Kownacki
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Umultowska 89c, 61-614 Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
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136
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Ciulla MG, Zimmermann S, Kumar K. Cascade reaction based synthetic strategies targeting biologically intriguing indole polycycles. Org Biomol Chem 2019; 17:413-431. [DOI: 10.1039/c8ob02620c] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this review, cascade reaction based synthesis strategies delivering biologically intriguing indole polycycles are presented.
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Affiliation(s)
- Maria Gessica Ciulla
- Max-Planck-Institut für Molekulare Physiologie
- Abteilung Chemische Biologie
- 44227 Dortmund
- Germany
| | - Stefan Zimmermann
- Max-Planck-Institut für Molekulare Physiologie
- Abteilung Chemische Biologie
- 44227 Dortmund
- Germany
- Fakultät Chemie und Chemische Biologie Technische Universität Dortmund
| | - Kamal Kumar
- Max-Planck-Institut für Molekulare Physiologie
- Abteilung Chemische Biologie
- 44227 Dortmund
- Germany
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137
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Du P, Zhao J. Comparative DFT study of metal-free Lewis acid-catalyzed C–H and N–H silylation of (hetero)arenes: mechanistic studies and expansion of catalyst and substrate scope. RSC Adv 2019; 9:37675-37685. [PMID: 35542279 PMCID: PMC9075773 DOI: 10.1039/c9ra07985h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/13/2019] [Indexed: 11/21/2022] Open
Abstract
Direct selective dehydrogenative silylation of thiophenes, pyridines, indoles and anilines to synthesize silyl-substituted aromatic compounds catalyzed by metal-free Lewis acids was achieved recently. However, there is still insufficient mechanistic data for these transformations. Using density functional theory calculations, we conducted a detailed investigation of the mechanism of the B(C6F5)3-catalyzed dehydrogenative silylation of N-methylindole, N,N-dimethylaniline and N-methylaniline. We successfully located the most favourable reaction pathways that can explain the experimental observations notably well. The most favourable pathway for B(C6F5)3-catalyzed C–H silylation of N-methylindole includes nucleophilic attack, proton abstraction and hydride migration. The C–H silylation of N,N-dimethylaniline follows a similar pathway to N-methylindole rather than that proposed by Hou's group. Our mechanism successfully explains that the transformations of N-methylindoline to N-methylindole produce different products at different temperatures. For N-methylaniline bearing both N–H and para-phenyl C–H bonds, the N–H silylation reaction is more facile than the C–H silylation reaction. Our proposed mechanism of N–H silylation of N-methylaniline is different from that proposed by the groups of Paradies and Stephan. Lewis acids Al(C6F5)3, Ga(C6F5)3 and B(2,6-Cl2C6H3)(p-HC6F4)2 can also catalyze the C–H silylation of N-methylindole like B(C6F5)3, but the most favourable pathways are those promoted by N-methylindoline. Furthermore, we also found several other types of substrates that would undergo C–H or N–H silylation reactions under moderate conditions. These findings may facilitate the design of new catalysts for the dehydrogenative silylation of inactivated (hetero)arenes. We investigated the mechanism of the dehydrosilylation of (hetero)arenes and extended the scope of the silylation catalysts and substrates.![]()
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Affiliation(s)
- Pan Du
- School of Life Science and Chemistry
- Jiangsu Second Normal University
- Nanjing 210013
- China
| | - Jiyang Zhao
- School of Environmental Science
- Nanjing Xiaozhuang University
- Nanjing 211171
- China
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138
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Mondal S, Manna SK, Pathak S, Masum AA, Mukhopadhyay S. A colorimetric and “off–on” fluorescent Pd2+ chemosensor based on a rhodamine-ampyrone conjugate: synthesis, experimental and theoretical studies along with in vitro applications. NEW J CHEM 2019. [DOI: 10.1039/c8nj05194a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We successfully designed and developed a rhodamine based “turn-on” chemosensor L for the detection of Pd2+ ions down to 1.19 × 10−5 M (11.9 μM).
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Affiliation(s)
- Sanchita Mondal
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | | | - Sudipta Pathak
- Department of Chemistry
- Haldia Government College
- Purba Medinipur
- India
| | - Abdulla Al Masum
- Department of Life Science & Bio-technology
- Jadavpur University
- Kolkata 700032
- India
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139
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Yu Z, Zhang T, Bai R, Lan Y. Probing enantioselectivity in rhodium-catalyzed Si–C bond cleavage to construct silicon-stereocenters: a theoretical study. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02261e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Density functional theory (DFT) calculations indicate that favorable oxidative addition/reductive elimination process from arylrhodium complex determines the enantioselectivity.
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Affiliation(s)
- Zhaoyuan Yu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Tao Zhang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Yu Lan
- Department College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
- School of Chemistry and Chemical Engineering
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140
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Ayogu JI, Onoabedje EA. Recent advances in transition metal-catalysed cross-coupling of (hetero)aryl halides and analogues under ligand-free conditions. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01331h] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The formation of new bonds is pivotal in organic chemistry and a prerequisite to life because it allows the construction of complex molecules from simple precursors.
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Affiliation(s)
- Jude I. Ayogu
- Department of Pure and Industrial Chemistry
- University of Nigeria
- Nsukka
- Nigeria
- Department of Chemistry
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141
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Wang F, Xu P, Cong F, Tang P. Silver-mediated oxidative functionalization of alkylsilanes. Chem Sci 2018; 9:8836-8841. [PMID: 30627401 PMCID: PMC6296296 DOI: 10.1039/c8sc03730b] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/22/2018] [Indexed: 11/21/2022] Open
Abstract
A general approach to the functionalization of aliphatic C-Si bonds in the presence of silver salts and oxidants has been reported. This strategy encompasses a range of valuable C-Si transformations, including the direct conversions of a C-Si bond to C-OCF3, C-OBz, C-OCOCF3, C-SCF3, C-SCN, and C-N3 bonds. Among them, trifluoromethoxylation of alkylsilanes is reported for the first time. In addition, mechanistic studies indicate that this reaction may proceed through a radical mechanism.
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Affiliation(s)
- Feng Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China .
| | - Peng Xu
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China .
| | - Fei Cong
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China .
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China .
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142
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Gu Q, Jia Q, Long J, Gao Z. Heterogeneous Photocatalyzed C−C Cross-coupling Reactions Under Visible-light and Near-infrared Light Irradiation. ChemCatChem 2018. [DOI: 10.1002/cctc.201801616] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Quan Gu
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering; Shaanxi Normal University; No. 620 West Chang'an Avenue Xi'an 710119 P.R. China
| | - Qiaohui Jia
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering; Shaanxi Normal University; No. 620 West Chang'an Avenue Xi'an 710119 P.R. China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment; Fuzhou University; Xueyuan Road 2 Fuzhou 350108 P.R. China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering; Shaanxi Normal University; No. 620 West Chang'an Avenue Xi'an 710119 P.R. China
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143
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Xiao P, Gao L, Song Z. Recent Progress in the Transition‐Metal‐Catalyzed Activation of Si−Si Bonds To Form C−Si Bonds. Chemistry 2018; 25:2407-2422. [PMID: 30160810 DOI: 10.1002/chem.201803803] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Peihong Xiao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of PharmacySichuan University Chengdu 610064 P.R. China
| | - Lu Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of PharmacySichuan University Chengdu 610064 P.R. China
| | - Zhenlei Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of PharmacySichuan University Chengdu 610064 P.R. China
- State Key Laboratory of Elemento-organic ChemistryNankai University Tianjin 300071 China
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144
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Zhang C, Pi J, Wang L, Liu P, Sun P. Silyl radical initiated radical cascade addition/cyclization: synthesis of silyl functionalized 4H-pyrido[4,3,2-gh]phenanthridin-5(6H)-ones. Org Biomol Chem 2018; 16:9223-9229. [PMID: 30475364 DOI: 10.1039/c8ob02670j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A cyclization cascade initiated by the addition of a silyl radical to an electron-deficient carbon-carbon double bond of N-arylacrylamides, followed by intramolecular cyano group insertion and homolytic aromatic substitution has been reported. In the presence of di-lauroyl peroxide (LPO), under metal-free conditions, several readily available hydrosilanes were successfully used as the source of silyl radicals and a series of silyl functionalized 4H-pyrido[4,3,2-gh]phenanthridin-5(6H)-ones were obtained in moderate to good yields.
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Affiliation(s)
- Chen Zhang
- College of Chemistry and Materials Science, Nanjing Normal University, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing 210023, China.
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145
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Mohammadi Ziarani G, Rohani S, Ziarati A, Badiei A. Applications of SBA-15 supported Pd metal catalysts as nanoreactors in C-C coupling reactions. RSC Adv 2018; 8:41048-41100. [PMID: 35557901 PMCID: PMC9091621 DOI: 10.1039/c8ra09038f] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 11/28/2018] [Indexed: 11/22/2022] Open
Abstract
Nanoreactors are material structures with engineered internal cavities which create exclusive confined nanoscale surroundings for chemical reactions. The cavities of mesoporous silica SBA-15 can be used as nanoreactors for incorporating catalytic species such as metal nanoparticles, complexes etc. Since SBA-15 silica has a neutral framework, organic functional groups and heteroatoms have been embedded by direct or post-synthesis approaches in order to modify their functionality. Palladium is the most used transition metal for C-C bond formations. Because of the great importance of C-C coupling reactions, this review article aims at providing a deep insight into the state of art in the field of the synthesis and the application of mesoporous SBA-15 silica-supported Pd catalysts in C-C coupling transformations. In most cases, synthesis and modification of the catalyst, time and yield of reactions, recyclability and leaching of the Pd species from the SBA-15 support are discussed to reveal the role of SBA-15 in C-C coupling reactions.
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Affiliation(s)
- Ghodsi Mohammadi Ziarani
- Department of Chemistry, Faculty of Science, University of Alzahra Tehran Iran +98 21 8041575 +98 218041575
| | - Sahar Rohani
- Department of Chemistry, Faculty of Science, University of Alzahra Tehran Iran +98 21 8041575 +98 218041575
| | - Abolfazl Ziarati
- School of Chemistry, College of Science, University of Tehran Tehran Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran Tehran Iran
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146
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Fernández G, Pleixats R. Soluble Pt Nanoparticles Stabilized by a Tris-imidazolium Tetrafluoroborate as Efficient and Recyclable Catalyst for the Stereoselective Hydrosilylation of Alkynes. ChemistrySelect 2018. [DOI: 10.1002/slct.201802785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guillem Fernández
- Department of Chemistry and Centro de Innovación en Química Avanzada (CINQA); Universitat Autònoma de Barcelona, 08193-Cerdanyola del Vallès; Barcelona, Spain
| | - Roser Pleixats
- Department of Chemistry and Centro de Innovación en Química Avanzada (CINQA); Universitat Autònoma de Barcelona, 08193-Cerdanyola del Vallès; Barcelona, Spain
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147
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Minami Y, Hiyama T. Designing Cross-Coupling Reactions using Aryl(trialkyl)silanes. Chemistry 2018; 25:391-399. [PMID: 30024650 DOI: 10.1002/chem.201803213] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/18/2018] [Indexed: 01/08/2023]
Abstract
Organo(trialkyl)silanes have several advantages, including high stability, low toxicity, good solubility, easy handling, and ready availability compared with heteroatom-substituted silanes. However, methods for the cross-coupling of organo(trialkyl)silanes are limited, most probably because of their exceeding robustness. Thus, a practical method for the cross-coupling of organo(trialkyl)silanes has been a long-standing challenging research target. This article discusses how aryl(trialkyl)silanes can be used in cross-coupling reactions. A pioneering example is CuII catalytic conditions with the use of electron-accepting aryl- or heteroaryl(triethyl)silanes and aryl iodides. The reaction forms biaryls or teraryls. This design concept can be extended to Pd/CuII -catalyzed cross-coupling polymerization reactions between such silanes and aryl bromides or chlorides and to CuI -catalyzed alkylation using alkyl halides.
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Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University, 1-13-27, Kasuga, Bunkyo-ku, Tokyo, 112-8551, Japan
| | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University, 1-13-27, Kasuga, Bunkyo-ku, Tokyo, 112-8551, Japan
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148
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Mu QC, Chen J, Xia CG, Xu LW. Synthesis of silacyclobutanes and their catalytic transformations enabled by transition-metal complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.06.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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149
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Lipke MC, Poradowski MN, Raynaud C, Eisenstein O, Tilley TD. Catalytic Olefin Hydrosilations Mediated by Ruthenium η3-H2Si σ Complexes of Primary and Secondary Silanes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02161] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark C. Lipke
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Marie-Noelle Poradowski
- Institut Charles Gerhardt, UMR 5253 CNRS-UM-ENSCM, Université de Montpellier, cc 1501 Place E. Bataillon, 34095 Montpellier, France
| | - Christophe Raynaud
- Institut Charles Gerhardt, UMR 5253 CNRS-UM-ENSCM, Université de Montpellier, cc 1501 Place E. Bataillon, 34095 Montpellier, France
| | - Odile Eisenstein
- Institut Charles Gerhardt, UMR 5253 CNRS-UM-ENSCM, Université de Montpellier, cc 1501 Place E. Bataillon, 34095 Montpellier, France
| | - T. Don Tilley
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
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150
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Song HJ, Jiang WT, Zhou QL, Xu MY, Xiao B. Structure-Modified Germatranes for Pd-Catalyzed Biaryl Synthesis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02661] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hai-Jie Song
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wei-Tao Jiang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qiao-Lan Zhou
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Meng-Yu Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Bin Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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