1
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Seok JE, Kim HT, Kim J, Lee JH, Jaladi AK, Hwang H, An DK. Effective magnesium‐catalyzed hydroboration of nitriles and imines. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ji Eun Seok
- Kangwon National University College of Natural Sciences Chemistry KOREA, REPUBLIC OF
| | - Hyun Tae Kim
- Kangwon National University College of Natural Sciences Chemistry KOREA, REPUBLIC OF
| | - Jaeho Kim
- Kangwon National University College of Natural Sciences Chemistry KOREA, REPUBLIC OF
| | - Ji Hye Lee
- Kangwon National University Chemistry KOREA, REPUBLIC OF
| | | | - Hyonseok Hwang
- Kangwon National University College of Natural Sciences Chemistry KOREA, REPUBLIC OF
| | - Duk Keun An
- Kangwon National University Chemistry KangwondoHyoja-2-dong 200-701 Chuncheon KOREA, REPUBLIC OF
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2
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Banerjee S, Vanka K. Computational insights into hydroboration with acyclic α-Borylamido-germylene and stannylene catalysts: Cooperative dual catalysis the key to system efficiency. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Sa S, Ponniah S J, Biswal P, Sathesh V, Murali AC, Venkatasubbaiah K. Distannadithiophenes and their application towards hydroboration of carbonyl compounds. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shreenibasa Sa
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Joseph Ponniah S
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Priyabrata Biswal
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Venkatesan Sathesh
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | | | - Krishnan Venkatasubbaiah
- National Institute of Science Education and Research School of Chemical Sciences NISER 752050 Bhubaneswar INDIA
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4
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A uranium(
IV
) alkyl complex: Synthesis and catalytic property in carbonyl hydroboration. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Abstract
The addition of a B-H bond to an unsaturated bond (polarized or unpolarized) is a powerful and atom-economic tool for the synthesis of organoboranes. In recent years, s-block organometallics have appeared as alternative catalysts to transition-metal complexes, which traditionally catalyze the hydroboration of unsaturated bonds. Because of the recent and rapid development in the field of hydroboration of unsaturated bonds catalyzed by alkali (Li, Na, K) and alkaline earth (Mg, Ca, Sr, Ba) metals, we provide a detailed and updated comprehensive review that covers the synthesis, reactivity, and application of s-block metal catalysts in the hydroboration of polarized as well as unsaturated carbon-carbon bonds. Moreover, we describe the main reaction mechanisms, providing valuable insight into the reactivity of the s-block metal catalysts. Finally, we compare these s-block metal complexes with other redox-neutral catalytic systems based on p-block metals including aluminum complexes and f-block metal complexes of lanthanides and early actinides. In this review, we aim to provide a comprehensive, authoritative, and critical assessment of the state of the art within this highly interesting research area.
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Affiliation(s)
- Marc Magre
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Marcin Szewczyk
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- Chemical Science Program, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, Thuwal 23955-6900, Kingdom of Saudi Arabia
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6
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Panda TK, Kumar R, Rawal P, Banerjee I, Nayek HP, Gupta P, Panda TK. Catalytic Hydroboration and Reductive Amination of Carbonyl Compounds by HBpin using a Zinc Promoter. Chem Asian J 2022; 17:e202200013. [PMID: 35020275 DOI: 10.1002/asia.202200013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 11/10/2022]
Abstract
In this paper, the chemoselective hydroboration of aldehydes and ketones, catalyzed by Zinc(II) complexes [ k 2 -(PyCH=NR)ZnX 2 ] [R = CPh 3 , X = Cl ( 1 ) and R = Dipp (2,6-diisoropylphenyl) and X = I ( 2 )], in the presence of pinacolborane (HBpin) in ambient temperature and solvent-free conditions, which produced corresponding boronate esters in high yield, is reported. Zinc metal complexes 1 and 2 were derived in 80-90% yield from the reaction of iminopyridine [PyCH=NR] with anhydrous zinc dichloride in dichloromethane at room temperature. The solid-state structures of both zinc complexes were confirmed using X-ray crystallography. Zinc complex 1 was also used as a competent pre-catalyst in the reductive amination of carbonyl compounds with HBpin under mild and solvent-free conditions to afford a high yield (up to 97%) of the corresponding secondary amines. The wider substrate scope of both reactions was explored. Catalytic protocols using zinc as a pre-catalyst demonstrated an atom-economic and green method with diverse substrates bearing excellent functional group tolerance. Computational studies established a plausible mechanism for catalytic hydroboration.
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Affiliation(s)
- Tarun K Panda
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
| | - Ravi Kumar
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
| | - Parveen Rawal
- IIT Roorkee: Indian Institute of Technology Roorkee, Chemistry, Roorkee, 247667, Roorkee, INDIA
| | - Indrani Banerjee
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
| | - Hari Pada Nayek
- IIT (ISM): Indian Institute of Technology, Chemistry, Dhanbad, 826004, Dhanbad, INDIA
| | - Puneet Gupta
- IIT Roorkee: Indian Institute of Technology Roorkee, Chemistry, Roorkee, 247667, Roorkee, INDIA
| | - Tarun K Panda
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
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7
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Nie K, Han Y, Wang C, Cheng X. Rare‐earth metal‐catalyzed hydroboration of unsaturated compounds. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kun Nie
- School of Chemistry and Chemical Engineering Taishan University Taian China
| | - Yinfeng Han
- School of Chemistry and Chemical Engineering Taishan University Taian China
| | - Changan Wang
- School of Chemistry and Chemical Engineering Taishan University Taian China
| | - Xueli Cheng
- School of Chemistry and Chemical Engineering Taishan University Taian China
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8
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Lou K, Zu F, Yi J, Cui C. Synthesis and Structure of a Dimeric Yttrium Complex [LSi(BH3)(C5Me4)Y(CH2SiMe3)2]2 (L = PhC(NtBu)2) and Its Catalytic Application for Hydroboration of Ketones and Aldehydes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ke Lou
- State Key laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Fenghua Zu
- Petrochina Petrochemical Research Institute, Beijing 100195, PR China
| | - Jianjun Yi
- Petrochina Petrochemical Research Institute, Beijing 100195, PR China
| | - Chunming Cui
- State Key laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, PR China
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9
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Kang Z, Xu X, Wang Y, Zhang W, Zhou S, Zhu X, Xue M. n-Butyllithium as a highly efficient precatalyst for cyanosilylation of aldehydes and ketones. Org Biomol Chem 2021; 19:7432-7437. [PMID: 34397075 DOI: 10.1039/d1ob01297e] [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
A highly efficient cyanosilylation protocol mediated by the easily available n-BuLi with a wide range of aldehydes and ketones was developed. This protocol features excellent yields with very low n-BuLi loadings (0.01-0.05 mol%) at room temperature, solvent-free process, good chemo-/regio-selectivity and functional group tolerance and scalability. A possible reaction pathway based upon stoichiometric reactivity was put forward.
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Affiliation(s)
- Zihan Kang
- Key Laboratory of Organic Synthesis of Jiangsu province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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10
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Affiliation(s)
- Ruibin Wang
- Department of Chemistry Guangdong Technion Israel Institute of Technology Guangdong 515063 P. R. China
| | - Sehoon Park
- Department of Chemistry Guangdong Technion Israel Institute of Technology Guangdong 515063 P. R. China
- Technion-Israel Institute of Technology Technion City 32000 Haifa Israel
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11
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Dicken RD, Motta A, Marks TJ. Homoleptic Lanthanide Amide Catalysts for Organic Synthesis: Experiment and Theory. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04882] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Rachel D. Dicken
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Alessandro Motta
- Dipartimento di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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12
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Anga S, Acharya J, Chandrasekhar V. An Unsymmetric Imino-Phosphanamidinate Ligand and its Y(III) Complex: Synthesis, Characterization, and Catalytic Hydroboration of Carbonyl Compounds. J Org Chem 2021; 86:2224-2234. [PMID: 33290079 DOI: 10.1021/acs.joc.0c02383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An imino-phosphanamide ligand, [NHIiPr2Me2P(Ph)NH-2,6-iPr2C6H3] (LH), containing two different N-substituents was prepared by the direct reaction of the lithium salt of N-heterocyclic imine (NHI) with phenylchloro-2,6-diisopropylphenyl phosphanamine, PhP(Cl)NH-2,6-iPr2-C6H3. Reaction of LH with Y(N(SiMe3)2)3 afforded the heteroleptic complex, [{L}Y(N(SiMe3)2)2] (1), by elimination of HN(SiMe3)2. Compound 1 was characterized by multinuclear NMR and X-ray crystallography. In the complex, the Y(III) center was found to be tetracoordinate in a distorted tetrahedral geometry. The ligand, imino-phosphanamidinate, [L]-, functions in a chelating manner, and its coordination to Y(III) results in a distorted 4-membered YPN2 ring. As a proof of principle of its activity, 1 was used as a precatalyst for the hydroboration of various aldehydes and ketones using HBpin as the hydrogen source. The hydroboration reaction was rapid and clean even with low catalyst loadings (0.01-0.1 mol %). In addition, a very good functional group tolerance was observed in these reactions.
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Affiliation(s)
- Srinivas Anga
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India
| | - Joydev Acharya
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India.,Department of Chemistry, IIT Kanpur, Kanpur 208016, India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India.,Department of Chemistry, IIT Kanpur, Kanpur 208016, India
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13
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Geier SJ, Binder JF, Vogels CM, Watanabe LK, Macdonald CLB, Westcott SA. The hydroboration of α-diimines. NEW J CHEM 2021. [DOI: 10.1039/d1nj01025e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The uncatalyzed addition of catecholborane to α-diimines has been examined.
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Affiliation(s)
- Stephen J. Geier
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Justin F. Binder
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Lara K. Watanabe
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Charles L. B. Macdonald
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
- Department of Chemistry, Carleton University, Ottawa, ON, K1S 5B6, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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14
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Bhawar R, Patil KS, Bose SK. CeO 2–nanocubes as efficient and selective catalysts for the hydroboration of carbonyl groups. NEW J CHEM 2021. [DOI: 10.1039/d1nj00065a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient and reusable CeO2 nanocatalyst has been developed for the selective hydroboration of carbonyl compounds, including aromatic, heteroaromatic, aliphatic, and (hetero)aliphatic aldehydes and ketones.
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Affiliation(s)
- Ramesh Bhawar
- Centre for Nano and Material Sciences (CNMS), JAIN (Deemed-to-be University), Jain Global Campus, Bangalore-562112, India
| | - Kiran S. Patil
- Centre for Nano and Material Sciences (CNMS), JAIN (Deemed-to-be University), Jain Global Campus, Bangalore-562112, India
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), JAIN (Deemed-to-be University), Jain Global Campus, Bangalore-562112, India
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15
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Sahoo RK, Mahato M, Jana A, Nembenna S. Zinc Hydride-Catalyzed Hydrofuntionalization of Ketones. J Org Chem 2020; 85:11200-11210. [PMID: 32786632 DOI: 10.1021/acs.joc.0c01285] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three new dimeric bis-guanidinate zinc(II) alkyl, halide, and hydride complexes [LZnEt]2 (1), [LZnI]2 (2) and [LZnH]2 (3) were prepared. Compound 3 was successfully employed for the hydrosilylation and hydroboration of a vast number of ketones. The catalytic performance of 3 in the hydroboration of acetophenone exhibits a turnover frequency, reaching up to 5800 h-1, outperforming that of reported zinc hydride catalysts. Notably, both intra- and intermolecular chemoselective hydrosilylation and hydroboration reactions have been investigated.
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Affiliation(s)
- Rajata Kumar Sahoo
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| | - Mamata Mahato
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| | - Achintya Jana
- Undergraduate Programme, Indian Institute of Science, Bangalore 560 012, India
| | - Sharanappa Nembenna
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
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16
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Sun Y, Lu C, Zhao B, Xue M. Enantioselective Hydroboration of Ketones Catalyzed by Rare-Earth Metal Complexes Containing Trost Ligands. J Org Chem 2020; 85:10504-10513. [PMID: 32589850 DOI: 10.1021/acs.joc.0c00877] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Four chiral dinuclear rare-earth metal complexes [REL1]2 (RE = Y(1), Eu(2), Nd(3), La (4)) stabilized by Trost proligand H3L1 (H3L1 = (S,S)-2,6-bis[2-(hydroxydiphenylmethyl)pyrrolidin-1-ylmethyl]-4-methylphenol) were first prepared, and all were characterized by X-ray diffraction. Complex 4 was employed as the catalyst for enantioselective hydroboration reaction of substituted ketones, and the corresponding secondary alcohols with excellent yields and high ee values were obtained using reductant HBpin. The same result was also achieved using the combination of lanthanium amides La[N(SiMe3)2]3 with Trost proligand H3L1 in a 1:1 molar ratio. The experimental findings and DFT calculation revealed the possible mechanism of the enantioselective hydroboration reaction and defined the origin of the enantioselectivity in the current system.
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17
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Panda TK, Banerjee I, Sagar S. Alkali Metal–Promoted Facile Synthesis of Secondary Amines from Imines and Carbodiimides. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5765] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tarun K. Panda
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi Sangareddy Telangana 502285 India
| | - Indrani Banerjee
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi Sangareddy Telangana 502285 India
| | - Shweta Sagar
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi Sangareddy Telangana 502285 India
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18
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Sarkar N, Mahato M, Nembenna S. Palladium‐Catalyzed Selective Reduction of Carbonyl Compounds. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000310] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Nabin Sarkar
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Homi Bhabha National Institute (HBNI) 752050 Bhubaneswar India
| | - Mamata Mahato
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Homi Bhabha National Institute (HBNI) 752050 Bhubaneswar India
| | - Sharanappa Nembenna
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Homi Bhabha National Institute (HBNI) 752050 Bhubaneswar India
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19
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20
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Khononov M, Fridman N, Tamm M, Eisen MS. Hydroboration of Aldehydes, Ketones, and Carbodiimides Promoted by Mono(imidazolin‐2‐iminato) Hafnium Complexes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901750] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Maxim Khononov
- Schulich Faculty of Chemistry TechnionIsrael Institute of Technology 32000 Haifa City Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry TechnionIsrael Institute of Technology 32000 Haifa City Israel
| | - Matthias Tamm
- Institut fürAnorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Moris S. Eisen
- Schulich Faculty of Chemistry TechnionIsrael Institute of Technology 32000 Haifa City Israel
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21
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Kuciński K, Hreczycho G. Potassium Fluoride-Catalyzed Hydroboration of Aldehydes and Ketones: Facile Reduction to Primary and Secondary Alcohols. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901514] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Krzysztof Kuciński
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
- Center for Advanced Technologies; Adam Mickiewicz University; Ul. Uniwersytetu Poznańskiego 10 61-614 Poznań Poland
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22
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Wang Z, Patnaik S, Eedugurala N, Manzano JS, Slowing II, Kobayashi T, Sadow AD, Pruski M. Silica-Supported Organolanthanum Catalysts for C–O Bond Cleavage in Epoxides. J Am Chem Soc 2020; 142:2935-2947. [DOI: 10.1021/jacs.9b11606] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhuoran Wang
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Smita Patnaik
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Naresh Eedugurala
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - J. Sebastián Manzano
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Igor I. Slowing
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Takeshi Kobayashi
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Aaron D. Sadow
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Marek Pruski
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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23
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Tamang SR, Singh A, Bedi D, Bazkiaei AR, Warner AA, Glogau K, McDonald C, Unruh DK, Findlater M. Polynuclear lanthanide–diketonato clusters for the catalytic hydroboration of carboxamides and esters. Nat Catal 2020. [DOI: 10.1038/s41929-019-0405-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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24
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Edelmann FT, Farnaby JH, Jaroschik F, Wilson B. Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Pandey VK, Donthireddy SNR, Rit A. Catalyst-Free and Solvent-Free Facile Hydroboration of Imines. Chem Asian J 2019; 14:3255-3258. [PMID: 31430049 DOI: 10.1002/asia.201901016] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/19/2019] [Indexed: 11/06/2022]
Abstract
A facile process for the catalyst-free and solvent-free hydroboration of aromatic as well as heteroaromatic imines is reported. This atom-economic methodology is scalable, compatible with sterically and electronically diverse imines, displaying excellent tolerance towards various functional groups, and works efficiently at ambient temperature in most of the cases, affording secondary amines in good to excellent yield after hydrolysis.
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Affiliation(s)
- Vipin K Pandey
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, India
| | | | - Arnab Rit
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, India
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26
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Xu X, Kang Z, Yan D, Xue M. La[N(SiMe
3
)
2
]
3
‐Catalyzed Hydroboration of Esters and Other Challenging Unsaturated Groups. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900344] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaojuan Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University Suzhou Jiangsu 215123 China
| | - Zihan Kang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University Suzhou Jiangsu 215123 China
| | - Dandan Yan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University Suzhou Jiangsu 215123 China
| | - Mingqiang Xue
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University Suzhou Jiangsu 215123 China
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Zhang MX, Xu HL. A greener catalyst for hydroboration of imines-external electric field modify the reaction mechanism. J Comput Chem 2019; 40:1772-1779. [PMID: 30942507 DOI: 10.1002/jcc.25830] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/25/2019] [Accepted: 03/12/2019] [Indexed: 01/01/2023]
Abstract
Usually, an extra catalyst (for example, the transition metal complexes) need to be used in catalyzing hydroboration, which involved the cost, environment, and so forth. Here, a greener and controllable catalyst-external electric field (EEF) was used to study its effect on hydroboration of N-(4-methylbenzyl)aniline (PhN═CHPhMe) with pinacolboane (HBPin). The results demonstrated that EEF could affect the barrier heights of both two pathways of this reaction. More significantly, flipping the direction of EEF could modify the reaction mechanism to induce a dominant inverse hydroboration at some field strength. That is to say, oriented EEF is a controlling switch for the anti- or Markovnikov hydroboration reaction of imines. This investigation is meaningful for the exploration of greener catalyst for chemistry reaction and guide a new method for the Markovnikov hydroboration addition. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Ming-Xia Zhang
- Department of Chemistry, National & Local United Engineering Lab for Power Battery, Institute of Functional Material Chemistry, Northeast Normal University, Changchun 130024, Jilin, People's Republic of China
| | - Hong-Liang Xu
- Department of Chemistry, National & Local United Engineering Lab for Power Battery, Institute of Functional Material Chemistry, Northeast Normal University, Changchun 130024, Jilin, People's Republic of China
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28
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Xu X, Yan D, Zhu Z, Kang Z, Yao Y, Shen Q, Xue M. Catalyst-Free Approach for Hydroboration of Carboxylic Acids under Mild Conditions. ACS OMEGA 2019; 4:6775-6783. [PMID: 31459799 PMCID: PMC6647974 DOI: 10.1021/acsomega.9b00406] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/28/2019] [Indexed: 05/22/2023]
Abstract
Herein, we present a facile method for deoxygenative hydroboration of a broad range of carboxylic acids under very mild conditions. The most striking feature of this attractive hydroboration is that this elusive and challenging transformation was realized without catalyst and solvent. The investigation of solvent effect showed that tetrahydrofuran was also suitable for this kind of reaction. Moreover, a successful gram-scale trial may provide a very promising toolkit for carboxylic acid reduction at a large scale.
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29
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Liu YN, Su HF, Li YW, Liu QY, Jagličić Z, Wang WG, Tung CH, Sun D. Space Craft-like Octanuclear Co(II)-Silsesquioxane Nanocages: Synthesis, Structure, Magnetic Properties, Solution Behavior, and Catalytic Activity for Hydroboration of Ketones. Inorg Chem 2019; 58:4574-4582. [PMID: 30887809 DOI: 10.1021/acs.inorgchem.9b00137] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Two novel space craft-like octanuclear Co(II)-silsesquioxane nanocages, {Co8[(MeSiO2)4]2(dmpz)8} (SD/Co8a) and {Co8[(PhSiO2)4]2(dmpz)8} (SD/Co8b) (SD = SunDi; Hdmpz = 3,5-dimethylpyrazole), have been constructed from two similar multidentate silsesquioxane ligands assisted with a pyrazole ligand. The Co8 skeleton consists of eight tetrahedral Co(II) ions arranged in a ring and is further capped by two (MeSiO2)4 ligands up and down. The auxiliary dmpz- ligands seal the ring finally. Electrospray ionization mass spectrometry revealed SD/Co8a and SD/Co8b are highly stable in CH2Cl2. Magnetic analysis implies that SD/Co8a announces antiferromagnetic interactions between Co(II) ions. Moreover, both of them display good homogeneous catalytic activity for hydroboration of ketones in the presence of pinacolborane under mild conditions.
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Affiliation(s)
- Ya-Nan Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials , Shandong University , Jinan , 250100 , People's Republic of China
| | - Hai-Feng Su
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , 361005 , People's Republic of China
| | - Yun-Wu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering , Liaocheng University , Liaocheng 252000 , P. R. China
| | - Qing-Yun Liu
- College of Chemical and Environmental Engineering , Shandong University of Science and Technology , Qingdao , 266590 , P. R. China
| | - Zvonko Jagličić
- Faculty of Civil and Geodetic Engineering & Institute of Mathematics, Physics and Mechanics University of Ljubljana , Jamova 2 , 1000 Ljubljana , Slovenia
| | - Wen-Guang Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials , Shandong University , Jinan , 250100 , People's Republic of China
| | - Chen-Ho Tung
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials , Shandong University , Jinan , 250100 , People's Republic of China
| | - Di Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials , Shandong University , Jinan , 250100 , People's Republic of China.,Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering , Liaocheng University , Liaocheng 252000 , P. R. China
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30
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31
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Qi X, Zheng T, Zhou J, Dong Y, Zuo X, Li X, Sun H, Fuhr O, Fenske D. Synthesis and Catalytic Activity of Iron Hydride Ligated with Bidentate N-Heterocyclic Silylenes for Hydroboration of Carbonyl Compounds. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00700] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xinghao Qi
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Tingting Zheng
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
- Department of Chemistry, Capital Normal University, Beijing 100037, People’s Republic of China
| | - Junhao Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
- Department of Chemistry, Capital Normal University, Beijing 100037, People’s Republic of China
| | - Yanhong Dong
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Xia Zuo
- Department of Chemistry, Capital Normal University, Beijing 100037, People’s Republic of China
| | - Xiaoyan Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Hongjian Sun
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Olaf Fuhr
- Institut für Nanotechnologie (INT) und Karlsruher Nano-Micro-Facility (KNMF), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Dieter Fenske
- Institut für Nanotechnologie (INT) und Karlsruher Nano-Micro-Facility (KNMF), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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32
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Yan D, Wu X, Xiao J, Zhu Z, Xu X, Bao X, Yao Y, Shen Q, Xue M. n-Butyllithium catalyzed hydroboration of imines and alkynes. Org Chem Front 2019. [DOI: 10.1039/c8qo01289j] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Simple and convenient n-BuLi is reported as a highly efficient catalyst in promoting the hydroboration of imines and alkynes.
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Affiliation(s)
- Dandan Yan
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xueli Wu
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jian Xiao
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Zhangye Zhu
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiaojuan Xu
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Mingqiang Xue
- Key Laboratory of Organic Synthesis of Jiangsu province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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33
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Wang W, Luo M, Yao W, Ma M, Pullarkat SA, Xu L, Leung PH. Catalyst-free and solvent-free hydroboration of ketones. NEW J CHEM 2019. [DOI: 10.1039/c9nj02722j] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The hydroboration of a wide range of ketones with HBpin under catalyst-free and solvent-free conditions was reported in high yields.
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Affiliation(s)
- Weifan Wang
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Man Luo
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Weiwei Yao
- College of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing 210023
- China
| | - Mengtao Ma
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Li Xu
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Pak-Hing Leung
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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34
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Zhang MX, Xu HL, Su ZM. The directions of an external electric field control the catalysis of the hydroboration of C–O unsaturated compounds. RSC Adv 2019; 9:29331-29336. [PMID: 35528393 PMCID: PMC9071821 DOI: 10.1039/c9ra03895g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/29/2019] [Indexed: 12/13/2022] Open
Abstract
EEF facilitates hydroboration by reducing its barrier in a specific direction; as illustrated in the image, the monkey easily picks the peach on the lower branch.
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Affiliation(s)
- Ming-Xia Zhang
- Institute of Functional Material Chemistry
- Department of Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun 130024
| | - Hong-Liang Xu
- Institute of Functional Material Chemistry
- Department of Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun 130024
| | - Zhong-Min Su
- Institute of Functional Material Chemistry
- Department of Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun 130024
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35
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Shegavi ML, Bose SK. Recent advances in the catalytic hydroboration of carbonyl compounds. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00807a] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The latest development in the catalytic hydroboration of CO groups is summarized in this review. Access to borate ester intermediates provides a pathway to convert them into the corresponding valuable functionalized alcohols.
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Affiliation(s)
- Mahadev L. Shegavi
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Jain Global Campus
- Bangalore-562112
- India
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Jain Global Campus
- Bangalore-562112
- India
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36
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Tamang SR, Bedi D, Shafiei-Haghighi S, Smith CR, Crawford C, Findlater M. Cobalt-Catalyzed Hydroboration of Alkenes, Aldehydes, and Ketones. Org Lett 2018; 20:6695-6700. [PMID: 30339397 DOI: 10.1021/acs.orglett.8b02775] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An operationally convenient and general method for hydroboration of alkenes, aldehydes, and ketones employing Co(acac)3 as a precatalyst is reported. The hydroboration of alkenes in the presence of HBpin, PPh3, and NaO tBu affords good to excellent yields with high Markovnikov selectivity with up to 97:3 branched/linear selectivity. Moreover, Co(acac)3 could be used effectively to hydroborate aldehydes and ketones in the absence of additives under mild reaction conditions. Inter- and intramolecular chemoselective reduction of the aldehyde group took place over the ketone functional group.
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Affiliation(s)
- Sem Raj Tamang
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409 , United States
| | - Deepika Bedi
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409 , United States
| | - Sara Shafiei-Haghighi
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409 , United States
| | - Cecilia R Smith
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409 , United States
| | - Christian Crawford
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409 , United States
| | - Michael Findlater
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409 , United States
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37
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Zhu Z, Wu X, Xu X, Wu Z, Xue M, Yao Y, Shen Q, Bao X. n-Butyllithium Catalyzed Selective Hydroboration of Aldehydes and Ketones. J Org Chem 2018; 83:10677-10683. [PMID: 30070486 DOI: 10.1021/acs.joc.8b01495] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Highly efficient and selective hydroboration of aldehydes and ketones with HBpin is achieved by using the simple and convenient n-BuLi as a catalyst. The reaction proceeds rapidly with low catalyst loading (0.1-0.5 mol %) under mild conditions. Key features include the high catalytic efficiency, exceptional functional group compatibility, ample substrate scope, and high selectivity for aldehydes over ketones. Computational studies were carried out to provide a mechanistic insight into the n-BuLi catalyzed hydroboration of aldehydes/ketones with HBpin.
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Affiliation(s)
- Zhangye Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Xueli Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Xiaojuan Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Zhenjie Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Mingqiang Xue
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus , Soochow University , Suzhou 215123 , People's Republic of China
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38
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Baishya A, Baruah S, Geetharani K. Efficient hydroboration of carbonyls by an iron(ii) amide catalyst. Dalton Trans 2018; 47:9231-9236. [PMID: 29953166 DOI: 10.1039/c8dt01998c] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An easily prepared iron(ii) amide precatalyst enables the selective hydroboration of carbonyls with HBpin (pinacolborane) in the absence of any additive. The reactions proceed with low catalytic loading (1-3 mol%) under mild reaction conditions and display wide functional group compatibility. Aldehydes are selectively hydroborated in the presence of other reducible functional groups, such as ketones, alkenes, nitriles, esters, amides, acids and halides.
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Affiliation(s)
- Ashim Baishya
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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39
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Shegavi ML, Baishya A, Geetharani K, Bose SK. Reusable Fe2O3-nanoparticle catalysed efficient and selective hydroboration of carbonyl compounds. Org Chem Front 2018. [DOI: 10.1039/c8qo00912k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We present readily accessible Fe2O3 nanoparticles as an efficient catalyst for the selective hydroboration of carbonyl compounds, which represents the first example of the use of nanoparticles as a catalyst for this process.
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Affiliation(s)
- Mahadev L. Shegavi
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Bangalore-562112
- India
| | - Ashim Baishya
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - K. Geetharani
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Bangalore-562112
- India
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