1
|
Amirmahani N, Rashidi M, Mahmoodi NO. Synthetic application of gold complexes on magnetic supports. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Najmeh Amirmahani
- Department of ChemistryFaculty of Science, University of Guilan, University Campus 2 Rasht Iran
- Environmental Health Engineering Research CenterKerman University of Medical Sciences Kerman Iran
| | - Mohsen Rashidi
- Department of Chemistry, Faculty of ScienceShahid Bahonar University of Kerman Kerman Iran
| | - Nosrat O. Mahmoodi
- Department of ChemistryFaculty of Science, University of Guilan, University Campus 2 Rasht Iran
| |
Collapse
|
2
|
Cheng HG, Miguélez J, Miyamura H, Yoo WJ, Kobayashi S. Integration of aerobic oxidation and intramolecular asymmetric aza-Friedel-Crafts reactions with a chiral bifunctional heterogeneous catalyst. Chem Sci 2017; 8:1356-1359. [PMID: 28451276 PMCID: PMC5362052 DOI: 10.1039/c6sc03849b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 10/05/2016] [Indexed: 11/21/2022] Open
Abstract
A new class of chiral bifunctional heterogeneous materials composed of Au/Pd nanoparticles and chiral phosphoric acids as active orthogonal catalysts was prepared by utilizing a facile pseudo-suspension co-polymerization method. It was found that this heterogeneous catalyst was capable of facilitating the sequential aerobic oxidation-asymmetric intramolecular aza-Friedel-Crafts reaction between benzyl alcohols and N-aminoethylpyrroles. Moreover, the designed chiral heterogeneous catalyst could be recovered and reused several times without significant loss of activity or enantioselectivity.
Collapse
Affiliation(s)
- Hong-Gang Cheng
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Javier Miguélez
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Hiroyuki Miyamura
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Woo-Jin Yoo
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Shū Kobayashi
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| |
Collapse
|
3
|
Gayakwad EM, Patil VV, Shankarling GS. Amberlyst-15 catalysed oxidative esterification of aldehydes using a H2O2 trapped oxidant as a terminal oxidant. NEW J CHEM 2017. [DOI: 10.1039/c6nj03831j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient method has been developed for the selective oxidative esterification of aldehydes using commercially available Amberlyst-15 as a catalyst.
Collapse
Affiliation(s)
- Eknath M. Gayakwad
- Institute of Chemical Technology
- Department of Dyestuff Technology
- Mumbai
- India
| | - Vilas V. Patil
- Institute of Chemical Technology
- Department of Dyestuff Technology
- Mumbai
- India
| | | |
Collapse
|
4
|
Personick ML, Madix RJ, Friend CM. Selective Oxygen-Assisted Reactions of Alcohols and Amines Catalyzed by Metallic Gold: Paradigms for the Design of Catalytic Processes. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02693] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michelle L. Personick
- Department
of Chemistry, Wesleyan University, Middletown, Connecticut 06459, United States
| | - Robert J. Madix
- Harvard
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Cynthia M. Friend
- Harvard
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
5
|
Touchy AS, Kon K, Onodera W, Shimizu KI. Unprecedented Reductive Esterification of Carboxylic Acids under Hydrogen by Reusable Heterogeneous Platinum Catalysts. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
6
|
Krylov IB, Vil’ VA, Terent’ev AO. Cross-dehydrogenative coupling for the intermolecular C-O bond formation. Beilstein J Org Chem 2015; 11:92-146. [PMID: 25670997 PMCID: PMC4311763 DOI: 10.3762/bjoc.11.13] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 12/31/2014] [Indexed: 12/11/2022] Open
Abstract
The present review summarizes primary publications on the cross-dehydrogenative C-O coupling, with special emphasis on the studies published after 2000. The starting compound, which donates a carbon atom for the formation of a new C-O bond, is called the CH-reagent or the C-reagent, and the compound, an oxygen atom of which is involved in the new bond, is called the OH-reagent or the O-reagent. Alcohols and carboxylic acids are most commonly used as O-reagents; hydroxylamine derivatives, hydroperoxides, and sulfonic acids are employed less often. The cross-dehydrogenative C-O coupling reactions are carried out using different C-reagents, such as compounds containing directing functional groups (amide, heteroaromatic, oxime, and so on) and compounds with activated C-H bonds (aldehydes, alcohols, ketones, ethers, amines, amides, compounds containing the benzyl, allyl, or propargyl moiety). An analysis of the published data showed that the principles at the basis of a particular cross-dehydrogenative C-O coupling reaction are dictated mainly by the nature of the C-reagent. Hence, in the present review the data are classified according to the structures of C-reagents, and, in the second place, according to the type of oxidative systems. Besides the typical cross-dehydrogenative coupling reactions of CH- and OH-reagents, closely related C-H activation processes involving intermolecular C-O bond formation are discussed: acyloxylation reactions with ArI(O2CR)2 reagents and generation of O-reagents in situ from C-reagents (methylarenes, aldehydes, etc.).
Collapse
Affiliation(s)
- Igor B Krylov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Alexander O Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| |
Collapse
|
7
|
Xia J, Shao A, Tang S, Gao X, Gao M, Lei A. Palladium-catalysed oxidative cross-esterification between two alcohols. Org Biomol Chem 2015; 13:6154-7. [DOI: 10.1039/c5ob00677e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidative cross-esterification between two alcohols was achieved by using PdCl2(PPh3)2 as the sole catalyst and benzyl chloride as the oxidant.
Collapse
Affiliation(s)
- Jianhui Xia
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Ailong Shao
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Shan Tang
- College of Chemistry and Molecular Sciences
- the Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Xinlong Gao
- College of Chemistry and Molecular Sciences
- the Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Meng Gao
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
- College of Chemistry and Molecular Sciences
| |
Collapse
|
8
|
Miyamura H, Yasukawa T, Kobayashi S. Preparation of polymer incarcerated gold nanocluster catalysts (PI-Au) and their application to aerobic oxidation reactions of boronic acids, alcohols, and silyl enol ethers. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
9
|
Moromi SK, Hakim Siddiki SMA, Ali MA, Kon K, Shimizu KI. Acceptorless dehydrogenative coupling of primary alcohols to esters by heterogeneous Pt catalysts. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00979g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
Miyamura H, Kobayashi S. Tandem oxidative processes catalyzed by polymer-incarcerated multimetallic nanoclusters with molecular oxygen. Acc Chem Res 2014; 47:1054-66. [PMID: 24661043 DOI: 10.1021/ar400224f] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Heterogeneous catalysis and one-pot tandem reactions are key for efficient and practical organic syntheses and for green and sustainable chemistry. Heterogeneous catalysts can be recovered and reused. These catalysts can be applied to efficient systems, such as continuous-flow systems. Tandem reactions often proceed via highly reactive but unstable intermediates. Tandem reactions do not require workup or much purification of the intermediate. This Account summarizes recent developments that we have made in the field of multifunctional heterogeneous metal nanocluster catalysts for use in tandem reactions based on aerobic oxidation reactions as key processes. We constructed our heterogeneous metal nanoclusters via two important procedures--microencapsulation and cross-linking--using polystyrene-based copolymers with cross-linking moieties. These frameworks can efficiently stabilize small metal nanoclusters to maintain high catalytic activity without aggregation and leaching of nanoclusters. Aggregation and leaching are prevented by weak but multiple interactions between metal nanocluster surfaces and benzene rings in the copolymer as well as by the physical envelopment of cross-linked polymer backbones. Small nanoclusters, including multimetallic alloy clusters (nanoalloys), can be "imprisoned" into these cross-linked polymer composites. The term we use for these processes is polymer incarceration. Direct oxidative esterifications were achieved with polymer-incarcerated (PI) Au nanocluster catalysts. Amides were synthesized from alcohols and amines under aerobic oxidative conditions with PI bimetallic nanocluster catalysts composed of Au and Fe-group metals that formed separated nanoclusters rather than alloys. Oxidative lactam formation from amino alcohols was also achieved. On the other hand, imines could be prepared selectively from alcohols and amines with PI Au-Pd bimetallic nanoclusters. We also achieved the integration of the aerobic oxidation of allylic alcohols and the following Michael reaction catalyzed by trimetallic PI catalysts containing Au-Pd alloy nanoclusters and tetraalkoxyborates as cross-linkers. All of these heterogeneous catalysts could be recovered by simple operations and reused without significant loss of activity or any leaching of metals. We have demonstrated that the polymer incarceration method enables the simultaneous immobilization of several metals, with which we can achieve one-pot tandem oxidative processes using molecular oxygen as an oxidant within the multifunctional heterogeneous catalysts. Suitable choices of metals and bimetallic structures are crucial for the reactivity and the selection of reaction pathways.
Collapse
Affiliation(s)
- Hiroyuki Miyamura
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu̅ Kobayashi
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
11
|
Xu B, Madix RJ, Friend CM. Predicting gold-mediated catalytic oxidative-coupling reactions from single crystal studies. Acc Chem Res 2014; 47:761-72. [PMID: 24387694 DOI: 10.1021/ar4002476] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Though metallic gold is chemically inert under ambient conditions, its surface is extremely reactive and selective for many key oxidative chemical transformations when activated by atomic oxygen. A molecular-level understanding of the mechanism of these processes could allow researchers to design "green" catalytic processes mediated by gold-based materials. This Account focuses on the mechanistic framework for oxidative-coupling reactions established by fundamental studies on oxygen-activated Au(111) and the application of these principles to steady-state catalytic conditions. We also discuss the importance of the paradigms discovered both for predicting new oxidative-coupling reactions and for understanding existing literature. The mechanistic framework for the oxidative coupling of alcohols on gold surfaces predicts that new oxidative-coupling reactions should occur between amines and aldehydes and amines and alcohols as well as through alcohol carbonylation. Adsorbed atomic oxygen on the gold surface facilitates the activation of the substrates, and nucleophilic attack and β-H elimination are the two fundamental reactions that propagate the versatile chemistry that ensues. In the self-coupling of primary alcohols, adsorbed atomic oxygen first activates the O-H bond in the hydroxyl group at ∼150 K, which forms the corresponding adsorbed alkoxy groups. The rate-limiting step of the self-coupling reaction is the β-H elimination reaction of alkoxy groups to form the corresponding aldehydes and occurs with an activation barrier of approximately 12 kcal/mol. The remaining alkoxy groups nucleophilically attack the electron-deficient aldehyde carbonyl carbon to yield the adsorbed "hemiacetal". This intermediate undergoes facile β-H elimination to produce the final coupling products, esters with twice the number of carbon atoms as the starting alcohols. This mechanistic insight suggests that cross-coupling occurs between alcohols and aldehydes, based on the logic that the nucleophilic reaction should be independent of the origin of the aldehydes, whether formed in situ or introduced externally. As a further example, adsorbed amides, formed from deprotonation of amines by atomic oxygen, can also attack aldehydes nucleophilically to yield the corresponding amides. Our mechanistic framework can also explain more elaborate gold-mediated chemistry, such as a unique carbonylation reaction via two subsequent nucleophilic attacks. These model studies on well-defined Au(111) at low pressure predict steady-state catalytic behavior on nanoporous gold under practical conditions. The fundamental principles of this research can also explain many other oxygen-assisted gold-mediated reactions observed under ambient conditions.
Collapse
Affiliation(s)
- Bingjun Xu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Robert J. Madix
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Cynthia M. Friend
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
12
|
Abstract
Recent progress in the direct esterification of alcohols from readily available materials under oxidative conditions is discussed in this perspective.
Collapse
Affiliation(s)
- Shan Tang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan, P. R. China
| | - Jiwen Yuan
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan, P. R. China
| | - Chao Liu
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan, P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
| |
Collapse
|
13
|
Soulé J, Miyamura H, Kobayashi S. Direct Amidation from Alcohols and Amines through a Tandem Oxidation Process Catalyzed by Heterogeneous‐Polymer‐Incarcerated Gold Nanoparticles under Aerobic Conditions. Chem Asian J 2013; 8:2614-26. [DOI: 10.1002/asia.201300733] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Jean‐François Soulé
- Department of Chemistry, School of Science, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo (113‐0033) (Japan), Fax: (+81) 3‐5684‐0634
| | - Hiroyuki Miyamura
- Department of Chemistry, School of Science, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo (113‐0033) (Japan), Fax: (+81) 3‐5684‐0634
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo (113‐0033) (Japan), Fax: (+81) 3‐5684‐0634
| |
Collapse
|
14
|
Soulé JF, Miyamura H, Kobayashi S. Selective imine formation from alcohols and amines catalyzed by polymer incarcerated gold/palladium alloy nanoparticles with molecular oxygen as an oxidant. Chem Commun (Camb) 2013; 49:355-7. [DOI: 10.1039/c2cc36213a] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Soulé JF, Miyamura H, Kobayashi S. Selective Lactam Formation from Amino Alcohols Using Polymer-Incarcerated Gold and Gold/Cobalt Nanoparticles as Catalysts under Aerobic Oxidative Conditions. ASIAN J ORG CHEM 2012. [DOI: 10.1002/ajoc.201200093] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
16
|
Shen H, Lu X, Jiang KZ, Yang KF, Lu Y, Zheng ZJ, Lai GQ, Xu LW. Dimethylbut-2-ynedioate mediated esterification of acids via sp3 C–N bond cleavage of benzylic tertiary amines. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.08.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
17
|
Yuan H, Yoo WJ, Miyamura H, Kobayashi S. Discovery of a metalloenzyme-like cooperative catalytic system of metal nanoclusters and catechol derivatives for the aerobic oxidation of amines. J Am Chem Soc 2012; 134:13970-3. [PMID: 22852772 DOI: 10.1021/ja306934b] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We have discovered a new class of cooperative catalytic system, consisting of heterogeneous polymer-immobilized bimetallic Pt/Ir alloyed nanoclusters (NCs) and 4-tert-butylcatechol, for the aerobic oxidation of amines to imines under ambient conditions. After optimization, the desired imines were obtained in good to excellent yields with broad substrate scope. The reaction rate was determined to be first-order with respect to the substrate and catechol and zero-order for the alloyed Pt/Ir NC catalyst. Control studies revealed that both the heterogeneous NC catalyst and 4-tert-butylcatechol are essential and act cooperatively to facilitate the aerobic oxidation under mild conditions.
Collapse
Affiliation(s)
- Hao Yuan
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | | | | | | |
Collapse
|
18
|
Mallat T, Baiker A. Potential of Gold Nanoparticles for Oxidation in Fine Chemical Synthesis. Annu Rev Chem Biomol Eng 2012; 3:11-28. [DOI: 10.1146/annurev-chembioeng-062011-081046] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In recent years supported gold nanoparticles have emerged as efficient catalysts with considerable synthetic potential for liquid-phase oxidation reactions based on molecular oxygen as oxidant. Here we critically review the most attractive applications related to the selective oxidation of functional groups containing O, N, or Si heteroatoms. The reactions include the oxidation of alcohols, aldehydes, and organosilanes; the diverse transformations of amines; benzylic oxidations; and some one-pot multistep reactions starting with alcohol or amine oxidation. In complex liquid-phase transformations relying on bifunctional catalysis, appropriate choice of the support is frequently more important than the size of the gold particles. In some oxidation reactions gold nanoparticles outperform the traditional platinum-group metal catalysts, but the latest results indicate the superiority of bimetallic particles containing gold and platinum, palladium, or rhodium. The environmentally benign nature of the transformations is discussed.
Collapse
Affiliation(s)
- Tamas Mallat
- Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, CH-8093 Zurich, Switzerland;,
| | - Alfons Baiker
- Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, CH-8093 Zurich, Switzerland;,
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
19
|
Yoo WJ, Yuan H, Miyamura H, Kobayashi S. Oxidative transformation of N-substituted 2-aminophenols to 2-substituted benzoxazoles catalyzed by polymer-incarcerated and carbon-stabilized platinum nanoclusters. CAN J CHEM 2012. [DOI: 10.1139/v11-161] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The preparation of 2-substituted benzoxazoles was achieved through a sequential aerobic oxidation – enolization – oxidative cyclization reaction of N-substituted 2-aminophenols catalyzed by platinum nanoclusters supported on a polymer / carbon black composite material.
Collapse
Affiliation(s)
- Woo-Jin Yoo
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hao Yuan
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroyuki Miyamura
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
20
|
Xu B, Madix RJ, Friend CM. Dual-Function of Alcohols in Gold-Mediated Selective Coupling of Amines and Alcohols. Chemistry 2012; 18:2313-8. [DOI: 10.1002/chem.201103232] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Indexed: 11/08/2022]
|
21
|
Akiyama R, Matsuki N, Nomura H, Yoshida H, Yoshida T, Kobayashi S. Nontoxic, nonvolatile, and highly efficient osmium catalysts for asymmetric dihydroxylation of alkenes and application to one mol-scale synthesis of an anticancer drug, camptothecin intermediate. RSC Adv 2012. [DOI: 10.1039/c2ra21123h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
22
|
Bai XF, Ye F, Zheng LS, Lai GQ, Xia CG, Xu LW. Hydrosilane and bismuth-accelerated palladium catalyzed aerobic oxidative esterification of benzylic alcohols with air. Chem Commun (Camb) 2012; 48:8592-4. [DOI: 10.1039/c2cc34117d] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
23
|
Fu L, Yao CJ, Chang NJ, Chen JR, Lu LQ, Xiao WJ. Oxidative cross-esterification of dithiolanes with alcohols through a cross-dehydrogenative coupling (CDC)/deprotection sequence. Org Biomol Chem 2012; 10:506-8. [DOI: 10.1039/c1ob06890c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
24
|
Yoo WJ, Yuan H, Miyamura H, Kobayashi S. Facile Preparation of 2-Substituted Benzoxazoles and Benzothiazoles via Aerobic Oxidation of Phenolic and Thiophenolic Imines Catalyzed by Polymer-Incarcerated Platinum Nanoclusters. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100430] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
25
|
Sølvhøj A, Madsen R. Dehydrogenative Coupling of Primary Alcohols To Form Esters Catalyzed by a Ruthenium N-Heterocyclic Carbene Complex. Organometallics 2011. [DOI: 10.1021/om200928b] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amanda Sølvhøj
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Robert Madsen
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| |
Collapse
|
26
|
Miyamura H, Morita M, Inasaki T, Kobayashi S. Aerobic Oxidation of Amines Catalyzed by Polymer-Incarcerated Au Nanoclusters: Effect of Cluster Size and Cooperative Functional Groups in the Polymer. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100300] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
KAIZUKA K, MIYAMURA H, KOBAYASHI S. Aerobic Oxidation of Alcohols and Direct Oxidative Ester Formation Catalyzed by Polymer-Immobilized Bimetallic Nanocluster Catalysts. KOBUNSHI RONBUNSHU 2011. [DOI: 10.1295/koron.68.493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|