1
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Wang D, Lang W, Wang W, Zou Q, Yang C, Liu F, Zhao T. CuH-Catalyzed Selective N-Methylation of Amines Using Paraformaldehyde as a C1 Source. ACS OMEGA 2023; 8:30640-30645. [PMID: 37636962 PMCID: PMC10448681 DOI: 10.1021/acsomega.3c04332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023]
Abstract
Copper hydride (CuH) complexes have been proposed as key intermediates in synthesis and catalysis. Herein, we developed a highly efficient strategy for CuH-catalyzed N-methylation of aromatic and aliphatic amines using paraformaldehyde and polymethylhydrosiloxane (PMHS) under mild reaction conditions. The reaction proceeded smoothly without additives to furnish the corresponding N-methylated products using cyclic(alkyl)(amino)carbene (CAAC)CuH as a reaction intermediate, which results from a reaction between PMHS and (CAAC)CuCl.
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Affiliation(s)
- Diedie Wang
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
| | - Wanglv Lang
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
| | - Wan Wang
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
| | - Qizhuang Zou
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
| | - Chunliang Yang
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
| | - Fei Liu
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
| | - Tianxiang Zhao
- Key Laboratory of Green Chemical and
Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, P. R. China
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2
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Cu-Catalyzed C–C Bond Formation with CO. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2023_84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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3
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Wang P, Wang Y, Neumann H, Beller M. Rh-catalyzed alkoxycarbonylation of unactivated alkyl chlorides. Chem Sci 2022; 13:13459-13465. [PMID: 36507181 PMCID: PMC9682885 DOI: 10.1039/d2sc04103k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/31/2022] [Indexed: 11/11/2022] Open
Abstract
A general rhodium-catalyzed selective carbonylative coupling of unactivated alkyl chlorides with aliphatic alcohols or phenols to the corresponding esters is presented for the first time. Crucial for this transformation is the addition of sodium iodide, which provides in situ more active alkyl iodides. In the presence of a Rh(i)-DPPP catalyst system diverse esters (81 examples) including industrially relevant acetates from chloro- and dichloromethane can be prepared in a straightforward manner in up to 95% isolated yield. The used ligand not only affects the selectivity of the carbonylation reaction but also controls the selectivity of the preceding halide exchange step.
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Affiliation(s)
- Peng Wang
- Leibniz-Institut für Katalyse e. V.Albert-Einstein-Straße 29aRostock 18059Germany
| | - Yaxin Wang
- Leibniz-Institut für Katalyse e. V.Albert-Einstein-Straße 29aRostock 18059Germany
| | - Helfried Neumann
- Leibniz-Institut für Katalyse e. V.Albert-Einstein-Straße 29aRostock 18059Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e. V.Albert-Einstein-Straße 29aRostock 18059Germany
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4
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5
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Ma B, Sun R, Yang J. Cobalt-catalyzed direct α-hydroxymethylation of amides with methanol as a C1 source. Chem Commun (Camb) 2022; 58:1382-1385. [PMID: 34989725 DOI: 10.1039/d1cc06501g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we report a cobalt-catalyzed α-hydroxymethylation of amides with methanol under mild conditions. Using CoCl2·6H2O as an inexpensive and efficient catalyst, some important bioactive β-hydroxyamides were obtained in moderate to excellent yields. The developed method features a wide substrate scope and good functional group tolerance. In addition, anticholinergic tropicamide was easily synthesized in this way.
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Affiliation(s)
- Ben Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China.
| | - Rongxia Sun
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China.
| | - Jingya Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China.
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6
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Yan X, Fan L, Zhang X, Liu G. Recent advances in Cu-catalyzed carbonylation with CO. Org Chem Front 2022. [DOI: 10.1039/d2qo01419j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Transition metal-catalyzed carbonylation has emerged as a powerful and versatile strategy for the efficient construction of complicated carbonyl-containing molecules from simple chemical feedstocks in the past decades.
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Affiliation(s)
- Xinlong Yan
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, College of Chemistry and Chemical Engineering, Inner Mongolia University, 24 Zhaojun Road, Hohhot 010030, China
| | - Lin Fan
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, College of Chemistry and Chemical Engineering, Inner Mongolia University, 24 Zhaojun Road, Hohhot 010030, China
| | - Xiangdong Zhang
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, College of Chemistry and Chemical Engineering, Inner Mongolia University, 24 Zhaojun Road, Hohhot 010030, China
| | - Guodu Liu
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, College of Chemistry and Chemical Engineering, Inner Mongolia University, 24 Zhaojun Road, Hohhot 010030, China
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7
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Huang W, Tian X, Jiao H, Jackstell R, Beller M. Iridium-catalyzed Domino Hydroformylation/Hydrogenation of Olefins to Alcohols: Synergy of Two Ligands. Chemistry 2021; 28:e202104012. [PMID: 34890092 PMCID: PMC9306591 DOI: 10.1002/chem.202104012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Indexed: 11/29/2022]
Abstract
A novel one‐pot iridium‐catalyzed domino hydroxymethylation of olefins, which relies on using two different ligands at the same time, is reported. DFT computation reveals different activities for the individual hydroformylation and hydrogenation steps in the presence of mono‐ and bidentate ligands. Whereas bidentate ligands have higher hydrogenation activity, monodentate ligands show higher hydroformylation activity. Accordingly, a catalyst system is introduced that uses dual ligands in the whole domino process. Control experiments show that the overall selectivity is kinetically controlled. Both computation and experiment explain the function of the two optimized ligands during the domino process.
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Affiliation(s)
- Weiheng Huang
- Leibniz-Institut für Katalyse eV: Leibniz-Institut fur Katalyse eV, Angewandte Homogenkatalyse, GERMANY
| | - Xinxin Tian
- Leibniz-Institut für Katalyse eV: Leibniz-Institut fur Katalyse eV, Angewandte Homogenkatalyse, GERMANY
| | - Haijun Jiao
- Leibniz-Institut für Katalyse eV: Leibniz-Institut fur Katalyse eV, Angewandte Homogenkatalyse, GERMANY
| | - Ralf Jackstell
- Leibniz-Institut für Katalyse eV: Leibniz-Institut fur Katalyse eV, Angewandte Homogenkatalyse, GERMANY
| | - Matthias Beller
- Leibniz-Institut für Katalyse, Homogeneous Catalysis, Albert-Einstein-Straße 29a, 18059, Rostock, GERMANY
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8
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Geng HQ, Meyer T, Franke R, Wu XF. Copper-catalyzed hydroformylation and hydroxymethylation of styrenes. Chem Sci 2021; 12:14937-14943. [PMID: 34820110 PMCID: PMC8597829 DOI: 10.1039/d1sc05474k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 10/29/2021] [Indexed: 12/24/2022] Open
Abstract
Hydroformylation catalyzed by transition metals is one of the most important homogeneously catalyzed reactions in industrial organic chemistry. Millions of tons of aldehydes and related chemicals are produced by this transformation annually. However, most of the applied procedures use rhodium catalysts. In the procedure described here, a copper-catalyzed hydroformylation of alkenes has been realized. Remarkably, by using a different copper precursor, the aldehydes obtained can be further hydrogenated to give the corresponding alcohols under the same conditions, formally named as hydroxymethylation of alkenes. Under pressure of syngas, various aldehydes and alcohols can be produced from alkenes with copper as the only catalyst, in excellent regioselectivity. Additionally, an all-carbon quaternary center containing ethers and formates can be synthesized as well with the addition of unactivated alkyl halides. A possible reaction pathway is proposed based on our results. A copper-catalyzed hydroformylation and hydroxymethylation of alkenes has been realized.![]()
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Affiliation(s)
- Hui-Qing Geng
- Leibniz-Institut für Katalyse e. V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Tim Meyer
- Leibniz-Institut für Katalyse e. V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Robert Franke
- Evonik Operations GmbH, Germany and Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum 44780 Bochum Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e. V. Albert-Einstein-Straße 29a 18059 Rostock Germany .,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 Liaoning China
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9
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Yu H, Ji Y, Sajjadi A. Copper catalyzed coupling reactions via unactivated alkyl reagents. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1968911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hao Yu
- Zhejiang College of Construction, Hangzhou, Zhejiang, China
| | - Yanchen Ji
- Zhejiang College of Construction, Hangzhou, Zhejiang, China
| | - Ahmad Sajjadi
- Department of Chemistry, Frankfurt University of Applied Sciences, Frankfurt, Germany
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10
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Geng HQ, Wu XF. Copper-Catalyzed Alkoxycarbonylation of Alkyl Iodides for the Synthesis of Aliphatic Esters: Hydrogen Makes the Difference. Org Lett 2021; 23:8062-8066. [PMID: 34609152 DOI: 10.1021/acs.orglett.1c03071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper-catalyzed alkoxycarbonylation transformation of unactivated alkyl iodides has been developed. Various alkyl iodides can be converted into the corresponding tert-butyl esters in good yields. NaOtBu acts as both a nucleophile and a base. Moreover, other types of aliphatic esters can also be obtained in moderated yields if extra alcohols are added. Both primary and secondary alkyl alcohols can react successfully.
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Affiliation(s)
- Hui-Qing Geng
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, Liaoning, China
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11
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Franco MS, Saba S, Rafique J, Braga AL. KIO
4
‐mediated Selective Hydroxymethylation/Methylenation of Imidazo‐Heteroarenes: A Greener Approach. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marcelo Straesser Franco
- Departamento de Química Universidade Federal de Santa Catarina—UFSC Florianópolis 88040-900 SC-Brazil
| | - Sumbal Saba
- Instituto de Química Universidade Federal de Goiás—UFG Goiânia 74690-900 GO-Brazil
| | - Jamal Rafique
- Instituto de Química, Universidade Federal do Mato Grosso do Sul—UFMS Campo Grande 79074-460 MS-Brazil
| | - Antonio Luiz Braga
- Departamento de Química Universidade Federal de Santa Catarina—UFSC Florianópolis 88040-900 SC-Brazil
- Department of Chemical Sciences Faculty of Science University of Johannesburg Doornfontein 2028 South Africa
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12
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Franco MS, Saba S, Rafique J, Braga AL. KIO 4 -mediated Selective Hydroxymethylation/Methylenation of Imidazo-Heteroarenes: A Greener Approach. Angew Chem Int Ed Engl 2021; 60:18454-18460. [PMID: 34097781 DOI: 10.1002/anie.202104503] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/14/2021] [Indexed: 02/06/2023]
Abstract
Herein, we report a KIO4 -mediated, sustainable and chemoselective approach for the one-pot C(sp2 )-H bond hydroxymethylation or methylenation of imidazo-heteroarenes with formaldehyde, generated in situ via the oxidative cleavage of ethylene glycol or glycerol (renewable reagents) through the Malaprade reaction. In the presence of ethylene glycol, a series of 3-hydroxymethyl-imidazo-heteroarenes was obtained in good to excellent yields. These compounds are important intermediates to access pharmaceutical drugs, e.g., Zolpidem. Furthermore, by using glycerol, bis(imidazo[1,2-a]pyridin-3-yl)methane derivatives were selectively obtained in good to excellent yields.
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Affiliation(s)
- Marcelo Straesser Franco
- Departamento de Química, Universidade Federal de Santa Catarina-UFSC, Florianópolis, 88040-900, SC-Brazil
| | - Sumbal Saba
- Instituto de Química, Universidade Federal de Goiás-UFG, Goiânia, 74690-900, GO-Brazil
| | - Jamal Rafique
- Instituto de Química, Universidade, Federal do Mato Grosso do Sul-UFMS, Campo Grande, 79074-460, MS-Brazil
| | - Antonio Luiz Braga
- Departamento de Química, Universidade Federal de Santa Catarina-UFSC, Florianópolis, 88040-900, SC-Brazil.,Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein, 2028, South Africa
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13
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Jin X, Fu HC, Wang MY, Huang S, Wang Y, He LN, Ma X. Chemodivergent Synthesis of One-Carbon-Extended Alcohols via Copper-Catalyzed Hydroxymethylation of Alkynes with Formic Acid. Org Lett 2021; 23:4997-5001. [PMID: 34061546 DOI: 10.1021/acs.orglett.1c01473] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of selective catalytic reactions that utilize easily available reagents for the efficient synthesis of alcohols is a long-standing goal of chemical research. Here an intriguing strategy for the chemodivergent copper-catalyzed hydroxymethylation of alkynes with formic acid and hydrosilane has been developed. By simply tuning the amount of formic acid and reaction temperature, distinct one-carbon-extended primary alcohols, that is, allylic alcohols and β-branched alkyl alcohols, were produced with high levels of Z/E-, regio-, and enantioselectivity.
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Affiliation(s)
- Xin Jin
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hong-Chen Fu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Mei-Yan Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, China.,Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Shouying Huang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yue Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Liang-Nian He
- Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China.,State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Xinbin Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, China.,Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
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14
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Wu F, Wu X. Copper‐Catalyzed Borylative Methylation of Alkyl Iodides with CO as the C1 Source: Advantaged by Faster Reaction of CuH over CuBpin. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fu‐Peng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian Liaoning China
| | - Xiao‐Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian Liaoning China
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15
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Wu FP, Wu XF. Copper-Catalyzed Borylative Methylation of Alkyl Iodides with CO as the C1 Source: Advantaged by Faster Reaction of CuH over CuBpin. Angew Chem Int Ed Engl 2021; 60:11730-11734. [PMID: 33694252 DOI: 10.1002/anie.202102197] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/01/2021] [Indexed: 12/15/2022]
Abstract
CuH and CuBpin are versatile catalysts and intermediates in organic chemistry. However, studies that involve both CuH and CuBpin in the same reaction is still rarely reported due to their high reactivity. Now, a study on CuH- and CuBpin-catalyzed borylative methylation of alkyl iodides with CO as the C1 source is reported. Various one carbon prolongated alkyl boranes (RCH2 Bpin and RCH(Bpin)2 ) were produced in moderate to good yields from the corresponding alkyl iodides (RI). In this cooperative system, CuH reacts with alkyl iodide faster than CuBpin.
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Affiliation(s)
- Fu-Peng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
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16
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Abstract
Transition metal-catalyzed carbonylation reactions represent a direct and atom-economical approach to introduce oxygen functionality into organic compounds, with CO acting as an inexpensive and readily available C1 feedstock. Despite the long history of carbonylation catalysis, including many processes that have been industrialized at bulk scale, there remain several challenges to tackle. For example, noble metals such as Pd, Rh, and Ir are typically used as catalysts for carbonylation reactions, rather than earth-abundant alternatives. Additionally, while carbonylation of C(sp2)-hybridized substrates (e.g., aryl halides) is well-known, carbonylation of unactivated alkyl electrophiles, especially where β-hydride elimination can compete with desired CO migratory insertion at the catalyst site, remains challenging for many systems. Recently, base metal catalysis based on Mn, Co, and other metals has enabled advances in carbonylative coupling of alkyl electrophiles, though the nucleophiles are often limited to alcohols or amines to generate esters or amides as products. Thus, we have targeted base metal-catalyzed carbonylative C-C and C-E (E = N, H, Si, B) coupling reactions as a method for approaching diverse carbonyl compounds of synthetic importance.Initially, we designed a heterobimetallic catalyst platform for carbonylative C-C coupling of alkyl halides with arylboronic esters (i.e., carbonylative Suzuki-Miyaura coupling) to generate aryl alkyl ketones. Subsequently, we developed multicomponent carbonylation reactions of alkyl halides using NHC-Cu catalysts (NHC = N-heterocyclic carbene). These reactions operate by radical mechanisms, converting alkyl halides into either acyl radical or acyl halide intermediates that undergo subsequent C-C or C-E coupling at the Cu site. This mechanistic paradigm is relatively novel in the metal-catalyzed carbonylation area, allowing us to discover a previously unexplored chemical space in carbonylative coupling catalysis. We have successfully developed the following reactions: (a) hydrocarbonylative coupling of alkynes with alkyl halides; (b) borocarbonylative coupling of alkynes with alkyl halides; (c) reductive aminocarbonylation of alkyl halides with nitroarenes; (d) reductive carbonylation of alkyl halides; (e) carbonylative silylation of alkyl halides; (f) carbonylative borylation of alkyl halides. These reactions provide a broad range of valuable products including ketones, allylic alcohols, β-borylenones, amides, alcohols, acylsilanes, and acylborons in an efficient manner. Notably, the preparation of some of these products has previously required multistep syntheses, harsh conditions, or specialized reagents. By contrast, the multicomponent coupling platform that we have developed requires only readily available building blocks and rapidly increases molecular complexity in a single synthetic manipulation.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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17
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Zhao F, Ai H, Wu X. Radical Carbonylation under Low
CO
Pressure: Synthesis of Esters from Activated Alkylamines at Transition
Metal‐Free
Conditions. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000624] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fengqian Zhao
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Straße 29a 18059 Rostock Germany
| | - Han‐Jun Ai
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Straße 29a 18059 Rostock Germany
| | - Xiao‐Feng Wu
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock Albert‐Einstein‐Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian Liaoning 116023 China
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18
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Cheng LJ, Zhao S, Mankad NP. One-Step Synthesis of Acylboron Compounds via Copper-Catalyzed Carbonylative Borylation of Alkyl Halides*. Angew Chem Int Ed Engl 2021; 60:2094-2098. [PMID: 33090619 DOI: 10.1002/anie.202012373] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Indexed: 01/11/2023]
Abstract
A copper-catalyzed carbonylative borylation of unactivated alkyl halides has been developed, enabling efficient synthesis of aliphatic potassium acyltrifluoroborates (KATs) in high yields by treating the in situ formed tetracoordinated acylboron intermediates with aqueous KHF2 . A variety of functional groups are tolerated under the mild reaction conditions, and primary, secondary, and tertiary alkyl halides are all applicable. In addition, this method also provides facile access to N-methyliminodiacetyl (MIDA) acylboronates as well as α-methylated potassium acyltrifluoroborates in a one-pot manner. Mechanistic studies indicate a radical atom transfer carbonylation (ATC) mechanism to form acyl halide intermediates that are subsequently borylated by (NHC)CuBpin.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL, 60607, USA
| | - Siling Zhao
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL, 60607, USA
| | - Neal P Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL, 60607, USA
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19
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Chatani N, Fujii S, Kido Y, Nakayama Y, Kajikawa Y, Tokuhisa H, Fukumoto Y, Murai S. Co 2(CO) 8-Catalyzed Reactions of Acetals or Lactones with Hydrosilanes and Carbon Monoxide. A New Access to the Preparation of 1,2-Diol Derivatives through Siloxymethylation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Satoru Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoichi Kido
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yasuhide Nakayama
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yasuteru Kajikawa
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hideo Tokuhisa
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshiya Fukumoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shinji Murai
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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20
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Copper‐Catalyzed and Proton‐Directed Selective Hydroxymethylation of Alkynes with CO
2. Angew Chem Int Ed Engl 2020; 60:3984-3988. [DOI: 10.1002/anie.202012768] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Indexed: 12/21/2022]
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21
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Abstract
The bis-NHC–Ag/Pd(OAc)2 catalytic system (NHC = N-heterocyclic carbene), a combination of bis-NHC–Ag complex and Pd(OAc)2, was found to be a smart catalyst in the Pd-catalyzed transfer hydrogenation of various functionalized arenes and internal/terminal alkynes. The catalytic system demonstrated high efficiency for the reduction of a wide range of various functional groups such as carbonyls, alkynes, olefins, and nitro groups in good to excellent yields and high chemoselectivity for the reduction of functional groups. In addition, the protocol was successfully exploited to stereoselectivity for the transformation of alkynes to alkenes in aqueous media under air. This methodology successfully provided an alternative useful protocol for reducing various functional groups and a simple operational protocol for transfer hydrogenation.
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22
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Wang M, Jin X, Wang X, Xia S, Wang Y, Huang S, Li Y, He L, Ma X. Copper‐Catalyzed and Proton‐Directed Selective Hydroxymethylation of Alkynes with CO
2. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mei‐Yan Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin University Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Fuzhou 350207 China
| | - Xin Jin
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Xiaofei Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Shumei Xia
- State Key Laboratory and Institute of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Yue Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Shouying Huang
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Ying Li
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Liang‐Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin University Tianjin 300072 China
| | - Xinbin Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin University Tianjin 300072 China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Fuzhou 350207 China
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23
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Cheng L, Zhao S, Mankad NP. One‐Step Synthesis of Acylboron Compounds via Copper‐Catalyzed Carbonylative Borylation of Alkyl Halides**. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012373] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Li‐Jie Cheng
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
| | - Siling Zhao
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
| | - Neal P. Mankad
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
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24
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Ai HJ, Wang H, Li CL, Wu XF. Rhodium-Catalyzed Carbonylative Coupling of Alkyl Halides with Phenols under Low CO Pressure. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00933] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Han-Jun Ai
- Leibniz-Institut für Katalyse e.V., Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Hai Wang
- Leibniz-Institut für Katalyse e.V., Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Chong-Liang Li
- Leibniz-Institut für Katalyse e.V., Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V., Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
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25
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Cheng LJ, Mankad NP. C–C and C–X coupling reactions of unactivated alkyl electrophiles using copper catalysis. Chem Soc Rev 2020; 49:8036-8064. [DOI: 10.1039/d0cs00316f] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Copper catalysts enable cross-coupling reactions of unactivated alkyl electrophiles to generate C–C and C–X bonds.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
| | - Neal P. Mankad
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
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26
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Cheng LJ, Mankad NP. Cu-Catalyzed Carbonylative Silylation of Alkyl Halides: Efficient Access to Acylsilanes. J Am Chem Soc 2019; 142:80-84. [PMID: 31851513 DOI: 10.1021/jacs.9b12043] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Cu-catalyzed carbonylative silylation of unactivated alkyl halides has been developed, enabling efficient synthesis of alkyl-substituted acylsilanes in high yield. A variety of functional groups are tolerated under the mild reaction conditions, and primary, secondary, and tertiary alkyl halides are all applicable. The practical utility of this method has been demonstrated in the synthesis of acylsilanes bearing different silyl groups as well as in situ reduction of a product to the corresponding α-hydroxylsilane in one pot. Mechanistic experiments indicate that a silylcopper intermediate activates alkyl halides by single electron transfer to form alkyl radical intermediates and that carbon-halogen bond cleavage is not involved in the rate-determining step.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
| | - Neal P Mankad
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
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27
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Zhao S, Mankad NP. Synergistic Copper-Catalyzed Reductive Aminocarbonylation of Alkyl Iodides with Nitroarenes. Org Lett 2019; 21:10106-10110. [PMID: 31802670 DOI: 10.1021/acs.orglett.9b04092] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Siling Zhao
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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28
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Wang W, Luo M, Zhu D, Yao W, Xu L, Ma M. Green hydroboration of carboxylic acids and mechanism investigation. Org Biomol Chem 2019; 17:3604-3608. [PMID: 30912564 DOI: 10.1039/c9ob00485h] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A catalyst-free and solvent-free method for the hydroboration of a variety of carboxylic acids with pinacolborane was developed. The hydroboration of various aromatic and aliphatic carboxylic acids as well as dicarboxylic acids with HBpin could be completed within 6 h at room temperature or within 1 h at 60 °C to give the products in quantitative yields under neat conditions without the need for any solvent or metal catalyst. The possible reaction mechanism was investigated in detail based on the corresponding DFT calculations and the stoichiometric reaction of acetic acid with different equivalents of HBpin (at room temperature and 0 °C) and it revealed the stepwise nature of the protocol.
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Affiliation(s)
- Weifan Wang
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China.
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29
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Shenouda H, Alexanian EJ. Manganese-Catalyzed Stereospecific Hydroxymethylation of Alkyl Tosylates. Org Lett 2019; 21:9268-9271. [PMID: 31689117 DOI: 10.1021/acs.orglett.9b03706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The development of a stereospecific hydroxymethylation of alkyl tosylates using an inexpensive, first-row catalyst is described. The transformation proceeds under mild conditions with low pressure to deliver homologated alcohols as products. Chiral, nonracemic β-branched primary alcohols are obtained with high enantiospecificity from easily accessed secondary alkyl substrates. Simple modification of the reaction system also permits access to α-d2 alcohols. These studies use anionic metal carbonyl catalysis to access a synthetic equivalent of the challenging hydroxymethyl anion from carbon monoxide.
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Affiliation(s)
- Hannah Shenouda
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Erik J Alexanian
- Department of Chemistry , The University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
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30
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Abstract
Herein, we developed a new and practical catalytic system for the carbonylative synthesis of β-hydroxyesters. By using simple, cheap, and air-stable cobalt(II) bromide as the catalyst, combined with pyrazole and catalytic amount of manganese, active cobalt complex can be generated in situ and can catalyze various epoxides to give the corresponding β-hydroxyesters in moderate to excellent yields. Mechanism studies indicate that pyrazole plays a crucial role in this reaction. Moreover, with the addition of the catalytic amount of manganese, the active cobalt catalyst can be regenerated, which provides a possibility for reusing the cobalt catalyst.
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Affiliation(s)
- Jian-Xing Xu
- Leibniz-Institut für Katalyse an der Universität Rostock e. V. , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse an der Universität Rostock e. V. , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
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31
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Chen Y, Su L, Gong H. Copper-Catalyzed and Indium-Mediated Methoxycarbonylation of Unactivated Alkyl Iodides with Balloon CO. Org Lett 2019; 21:4689-4693. [PMID: 31184918 DOI: 10.1021/acs.orglett.9b01573] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work emphasizes the synthesis of alkyl esters via Cu-catalyzed and In-mediated alkoxycarbonylation of unactivated alkyl iodides in the presence of In or InI. The reactions were suitable for the preparation of primary, secondary, and even tertiary alkyl esters, representing an exceptionally rare example for the creation of quaternary carbon centers upon formation of esters. The preliminary mechanistic studies indicated that alkyl radicals were involved, and Cu/In/CO played a cooperative role in the carbonylation event.
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Affiliation(s)
- Yanchi Chen
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis and Department of Chemistry , Shanghai University , 99 Shang-Da Road , Shanghai 200444 , China
| | - Lei Su
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis and Department of Chemistry , Shanghai University , 99 Shang-Da Road , Shanghai 200444 , China
| | - Hegui Gong
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis and Department of Chemistry , Shanghai University , 99 Shang-Da Road , Shanghai 200444 , China
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32
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Abstract
A review of metal-catalysed radical carbonylation reactions is presented.
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Affiliation(s)
- Siling Zhao
- Department of Chemistry
- University of Illinois
- Chicago
- USA
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33
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Matsui JK, Gutiérrez-Bonet Á, Rotella M, Alam R, Gutierrez O, Molander GA. Photoredox/Nickel-Catalyzed Single-Electron Tsuji-Trost Reaction: Development and Mechanistic Insights. Angew Chem Int Ed Engl 2018; 57:15847-15851. [PMID: 30307672 PMCID: PMC6526374 DOI: 10.1002/anie.201809919] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/27/2018] [Indexed: 11/09/2022]
Abstract
A regioselective, nickel-catalyzed photoredox allylation of secondary, benzyl, and α-alkoxy radical precursors is disclosed. Through this manifold, a variety of linear allylic alcohols and allylated monosaccharides are accessible in high yields under mild reaction conditions. Quantum mechanical calculations [DFT and DLPNO-CCSD(T)] support the mechanistic hypothesis of a Ni0 to NiII oxidative addition pathway followed by radical addition and inner-sphere allylation.
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Affiliation(s)
- Jennifer K Matsui
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, Philadelphia, PA, 19104-6323, USA
| | - Álvaro Gutiérrez-Bonet
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, Philadelphia, PA, 19104-6323, USA
| | - Madeline Rotella
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA
| | - Rauful Alam
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, Philadelphia, PA, 19104-6323, USA
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA
| | - Gary A Molander
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, Philadelphia, PA, 19104-6323, USA
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34
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Matsui JK, Gutiérrez-Bonet Á, Rotella M, Alam R, Gutierrez O, Molander GA. Photoredox/Nickel-Catalyzed Single-Electron Tsuji-Trost Reaction: Development and Mechanistic Insights. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809919] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jennifer K. Matsui
- Department of Chemistry; University of Pennsylvania; Roy and Diana Vagelos Laboratories; Philadelphia PA 19104-6323 USA
| | - Álvaro Gutiérrez-Bonet
- Department of Chemistry; University of Pennsylvania; Roy and Diana Vagelos Laboratories; Philadelphia PA 19104-6323 USA
| | - Madeline Rotella
- Department of Chemistry and Biochemistry; University of Maryland; College Park MD 20742 USA
| | - Rauful Alam
- Department of Chemistry; University of Pennsylvania; Roy and Diana Vagelos Laboratories; Philadelphia PA 19104-6323 USA
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry; University of Maryland; College Park MD 20742 USA
| | - Gary A. Molander
- Department of Chemistry; University of Pennsylvania; Roy and Diana Vagelos Laboratories; Philadelphia PA 19104-6323 USA
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35
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Wu FP, Peng JB, Qi X, Ying J, Wu XF. Palladium-Catalyzed Solvent-Dependent Divergent Synthesis of Benzylformamides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800674] [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)
- Fu-Peng Wu
- Department of Chemistry; Zhejiang Sci-Tech University, Hangzhou; Zhejiang 310018 People's Republic of China
| | - Jin-Bao Peng
- Department of Chemistry; Zhejiang Sci-Tech University, Hangzhou; Zhejiang 310018 People's Republic of China
| | - Xinxin Qi
- Department of Chemistry; Zhejiang Sci-Tech University, Hangzhou; Zhejiang 310018 People's Republic of China
| | - Jun Ying
- Department of Chemistry; Zhejiang Sci-Tech University, Hangzhou; Zhejiang 310018 People's Republic of China
| | - Xiao-Feng Wu
- Department of Chemistry; Zhejiang Sci-Tech University, Hangzhou; Zhejiang 310018 People's Republic of China
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Straße 29a Rostock 18059 Germany
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36
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Cheng L, Mankad NP. Copper‐Catalyzed Borocarbonylative Coupling of Internal Alkynes with Unactivated Alkyl Halides: Modular Synthesis of Tetrasubstituted β‐Borylenones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804883] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Li‐Jie Cheng
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
| | - Neal P. Mankad
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
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37
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Cheng L, Mankad NP. Copper‐Catalyzed Borocarbonylative Coupling of Internal Alkynes with Unactivated Alkyl Halides: Modular Synthesis of Tetrasubstituted β‐Borylenones. Angew Chem Int Ed Engl 2018; 57:10328-10332. [DOI: 10.1002/anie.201804883] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/19/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Li‐Jie Cheng
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
| | - Neal P. Mankad
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
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