1
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Jamdade AB, Sutar DV, Gnanaprakasam B. Synthesis of Macrolactams from Macrolactones Using Ru-/Ir-Catalytic System under Neutral Conditions. Org Lett 2023; 25:9058-9063. [PMID: 38091469 DOI: 10.1021/acs.orglett.3c03885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Herein, we report the Ru-/Ir-catalyzed synthesis of valuable macrolactams from macrolactones and esters. The ring-opening of the macrolactones was efficaciously facilitated by the Ru catalyst to generate 32 amides in the first step. In the second step, intramolecular N-alkylative ring closure of amides with alcohols was succeeded by Ir catalyst to provide a series of 22 macrolactams and gave water as a byproduct. Moreover, this approach proceeded under neutral conditions and avoided the use of external additives.
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Affiliation(s)
- Akash B Jamdade
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Dashrat V Sutar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
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2
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Patel MA, Kapdi AR. Ambient-Temperature, Metal-Free, CDI-Mediated Ex-Situ Conversion of Acids to Amides: A Useful Late-Stage Strategy. Chem Asian J 2023; 18:e202300672. [PMID: 37707494 DOI: 10.1002/asia.202300672] [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: 08/01/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/15/2023]
Abstract
An efficient ex-situ method for the amidation of carboxylic acids mediated by CDI has been disclosed herewith. This metal-free strategy is performed at ambient temperature and can be applied effectively for late-stage modification of amino acids and APIs.
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Affiliation(s)
- Manisha A Patel
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India
| | - Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India
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3
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Lo R, Pykal M, Schneemann A, Zbořil R, Fischer RA, Jayaramulu K, Otyepka M. Lewis Acid Catalyzed Amide Bond Formation in Covalent Graphene-MOF Hybrids. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:15454-15460. [PMID: 37588814 PMCID: PMC10426341 DOI: 10.1021/acs.jpcc.3c01821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/01/2023] [Indexed: 08/18/2023]
Abstract
Covalent hybrids of graphene and metal-organic frameworks (MOFs) hold immense potential in various technologies, particularly catalysis and energy applications, due to the advantageous combination of conductivity and porosity. The formation of an amide bond between carboxylate-functionalized graphene acid (GA) and amine-functionalized UiO-66-NH2 MOF (Zr6O4(OH)4(NH2-bdc)6, with NH2-bdc2- = 2-amino-1,4-benzenedicarboxylate and UiO = Universitetet i Oslo) is a highly efficient strategy for creating such covalent hybrids. Previous experimental studies have demonstrated exceptional properties of these conductive networks, including significant surface area and functionalized hierarchical pores, showing promise as a chemiresistive CO2 sensor and electrode materials for asymmetric supercapacitors. However, the molecular-level origin of the covalent linkages between pristine MOF and GA layers remains unclear. In this study, density functional theory (DFT) calculations were conducted to elucidate the mechanism of amide bond formation between GA and UiO-66-NH2. The theoretical calculations emphasize the crucial role of zirconium within UiO-66, which acts as a catalyst in the reaction cycle. Both commonly observed hexa-coordinated and less common hepta-coordinated zirconium complexes are considered as intermediates. By gaining detailed insights into the binding interactions between graphene derivatives and MOFs, strategies for tailored syntheses of such nanocomposite materials can be developed.
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Affiliation(s)
- Rabindranath Lo
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, v.v.i., Flemingovo nám. 2, 160
00 Prague 6, Czech
Republic
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University
Olomouc, Křížkovského
511/8, Olomouc 77900, Czech Republic
| | - Martin Pykal
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University
Olomouc, Křížkovského
511/8, Olomouc 77900, Czech Republic
| | - Andreas Schneemann
- Lehrstuhl
für Anorganische Chemie I, Technische
Universität Dresden, Bergstr. 66, 01069 Dresden, Germany
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University
Olomouc, Křížkovského
511/8, Olomouc 77900, Czech Republic
- Nanotechnology
Centre, CEET, VSB, Technical University
of Ostrava, 17. listopadu
2172/15, 70800 Ostrava-Poruba, Czech Republic
| | - Roland A. Fischer
- Chair
of Inorganic and Metal−Organic Chemistry, Department of Chemistry
and Catalysis Research Centre, Technical
University of Munich, 85748 Garching, Germany
| | - Kolleboyina Jayaramulu
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University
Olomouc, Křížkovského
511/8, Olomouc 77900, Czech Republic
- Hybrid
Porous Materials Lab, Department of Chemistry, Indian Institute of Technology Jammu, Jammu & Kashmir 181221, India
| | - Michal Otyepka
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University
Olomouc, Křížkovského
511/8, Olomouc 77900, Czech Republic
- IT4Innovations, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 70800 Ostrava-Poruba, Czech Republic
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4
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Opie CR, Noda H, Shibasaki M, Kumagai N. Less Is More: N(BOH) 2 Configuration Exhibits Higher Reactivity than the B 3NO 2 Heterocycle in Catalytic Dehydrative Amide Formation. Org Lett 2023; 25:694-697. [PMID: 36662124 DOI: 10.1021/acs.orglett.2c04382] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Diboron substructures have emerged as a promising scaffold for the catalytic dehydrative amidation of carboxylic acids and amines. This Letter describes the design, synthesis, and evaluation of the first isolable N(BOH)2 compound as an amidation catalyst. The new catalyst outperforms the previously reported B3NO2 heterocycle catalyst, with respect to turnover frequency, albeit the former gradually decomposes upon exposure to amines. This work opens up an avenue for designing a better catalyst for direct amidation.
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Affiliation(s)
- Christopher R Opie
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan.,Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
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5
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Kamran M, Davidson MG, Tsanaktsis V, van Berkel S, de Vos S. Structure-property insights of semi-aromatic polyamides based on renewable furanic monomer and aliphatic diamines. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Magano J. Large-Scale Amidations in Process Chemistry: Practical Considerations for Reagent Selection and Reaction Execution. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Javier Magano
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
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7
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Kamran M, Davidson MG, de Vos S, Tsanaktsis V, Yeniad B. Synthesis and characterisation of polyamides based on 2,5-furandicarboxylic acid as a sustainable building block for engineering plastics. Polym Chem 2022. [DOI: 10.1039/d2py00189f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyphthalamides (PPAs) are promising engineering thermoplastics employed in several demanding applications. At present, most of the commercially available PPAs are based on non-renewable petroleum derived resources. Herein, we investigated the...
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8
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Kalita T, Mandal B. One‐Pot Synthesis of Amide, Dipeptide, Ester and Hydroxamate Using Oxyma and Thionyl Chloride (SOCl
2
). ChemistrySelect 2021. [DOI: 10.1002/slct.202103006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tapasi Kalita
- Department of Chemistry Indian Institute of Technology Guwahati Guwahati Assam 781039 India
| | - Bhubaneswar Mandal
- Department of Chemistry Indian Institute of Technology Guwahati Guwahati Assam 781039 India
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9
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de Azambuja F, Loosen A, Conic D, van den Besselaar M, Harvey JN, Parac-Vogt TN. En Route to a Heterogeneous Catalytic Direct Peptide Bond Formation by Zr-Based Metal–Organic Framework Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01782] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Alexandra Loosen
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Dragan Conic
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | | | - Jeremy N. Harvey
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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10
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Rerkrachaneekorn T, Tankam T, Sukwattanasinitt M, Wacharasindhu S. NaI-mediated oxidative amidation of benzyl alcohols/aromatic aldehydes to benzamides via electrochemical reaction. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Patel KP, Gayakwad EM, Shankarling GS. Graphene Oxide as a Metal‐free Carbocatalyst for Direct Amide Synthesis from Carboxylic Acid and Amine Under Solvent‐Free Reaction Condition. ChemistrySelect 2020. [DOI: 10.1002/slct.202000870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Khushbu P. Patel
- Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Mat Department of Dyestuff Technology Institute of Chemical Technology, N. P. Marg, Matunga Mumbai 400019 India
| | - Eknath M. Gayakwad
- Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Mat Department of Dyestuff Technology Institute of Chemical Technology, N. P. Marg, Matunga Mumbai 400019 India
| | - Ganapati S. Shankarling
- Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Mat Department of Dyestuff Technology Institute of Chemical Technology, N. P. Marg, Matunga Mumbai 400019 India
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12
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Direct amidation of non‐activated carboxylic acid and amine derivatives catalyzed by TiCp
2
Cl
2. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Yadav D, Awasthi SK. An unsymmetrical covalent organic polymer for catalytic amide synthesis. Dalton Trans 2019; 49:179-186. [PMID: 31799570 DOI: 10.1039/c9dt03931g] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we present the first report on the Covalent Organic Polymer (COP) directed non-classical synthesis of an amide bond. An economical route has been chosen for the synthesis of APC-COP using p-aminophenol and cyanuric chloride. APC-COP acts as a smart, valuable and sustainable catalyst for efficient access to the amide bond under mild conditions at room temperature in 30 min. APC-COP exhibits selectivity towards carboxylic acids over esters. The key features of this protocol involve the variety of parameters, viz. wider substrate scope, no use of additive and recyclability, which makes this approach highly desirable in gramscale synthesis. Moreover, we have shown the practical utility of the present method in the catalytic synthesis of paracetamol.
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Affiliation(s)
- Deepika Yadav
- Department of Chemistry, University of Delhi, Delhi-110007, India.
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14
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Wang M, Gang H, Zhou L, Liu J, Mu B, Yang S. A high yield method for the direct amidation of long‐chain fatty acids. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Man‐Yu Wang
- State Key Laboratory of Bioreactor Engineering and Institute of Applied ChemistryEast China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Hong‐Ze Gang
- State Key Laboratory of Bioreactor Engineering and Institute of Applied ChemistryEast China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Lei Zhou
- State Key Laboratory of Bioreactor Engineering and Institute of Applied ChemistryEast China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Jin‐Feng Liu
- State Key Laboratory of Bioreactor Engineering and Institute of Applied ChemistryEast China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Bo‐Zhong Mu
- State Key Laboratory of Bioreactor Engineering and Institute of Applied ChemistryEast China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Shi‐Zhong Yang
- State Key Laboratory of Bioreactor Engineering and Institute of Applied ChemistryEast China University of Science and Technology Shanghai 200237 People's Republic of China
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15
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Piszel PE, Vasilopoulos A, Stahl SS. Oxidative Amide Coupling from Functionally Diverse Alcohols and Amines Using Aerobic Copper/Nitroxyl Catalysis. Angew Chem Int Ed Engl 2019; 58:12211-12215. [PMID: 31206988 DOI: 10.1002/anie.201906130] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/15/2019] [Indexed: 01/08/2023]
Abstract
The aerobic Cu/ABNO catalyzed oxidative coupling of alcohols and amines is highlighted in the synthesis of amide bonds in diverse drug-like molecules (ABNO=9-azabicyclo[3.3.1]nonane N-oxyl). The robust method leverages the privileged reactivity of alcohols bearing electronegative hetero- atoms (O, F, N, Cl) in the β-position. The reaction tolerates over 20 unique functional groups and is demonstrated on a 15 mmol scale under air. Steric constraints of the catalyst allow for chemoselective amidation of primary amines in the presence of secondary amines. All catalyst components are commercially available, and the reaction proceeds under mild conditions with retention of stereocenters in both reaction partners, while producing only water as a by-product.
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Affiliation(s)
- Paige E Piszel
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | | | - Shannon S Stahl
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
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16
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Piszel PE, Vasilopoulos A, Stahl SS. Oxidative Amide Coupling from Functionally Diverse Alcohols and Amines Using Aerobic Copper/Nitroxyl Catalysis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paige E. Piszel
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | | | - Shannon S. Stahl
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
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17
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Shimada N, Hirata M, Koshizuka M, Ohse N, Kaito R, Makino K. Diboronic Acid Anhydrides as Effective Catalysts for the Hydroxy-Directed Dehydrative Amidation of Carboxylic Acids. Org Lett 2019; 21:4303-4308. [PMID: 31120259 DOI: 10.1021/acs.orglett.9b01484] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The direct catalytic dehydrative amidation of β-hydroxycarboxylic acids with amines is described. A biphenyl-based diboronic acid anhydride with a B-O-B skeleton is shown to be an exceptionally effective catalyst for the reaction, providing β-hydroxycarboxylic amides in high to excellent yields with a low catalyst loading (minimum of 0.01 mol %, TON up to 7,500). This hydroxy-directed amidation shows excellent chemoselectivity and is applicable to gram-scale drug synthesis.
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Affiliation(s)
- Naoyuki Shimada
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences , Kitasato University , Tokyo 108-8641 , Japan
| | - Mai Hirata
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences , Kitasato University , Tokyo 108-8641 , Japan
| | - Masayoshi Koshizuka
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences , Kitasato University , Tokyo 108-8641 , Japan
| | - Naoki Ohse
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences , Kitasato University , Tokyo 108-8641 , Japan
| | - Ryoto Kaito
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences , Kitasato University , Tokyo 108-8641 , Japan
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences , Kitasato University , Tokyo 108-8641 , Japan
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18
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Opie CR, Noda H, Shibasaki M, Kumagai N. All Non-Carbon B 3 NO 2 Exotic Heterocycles: Synthesis, Dynamics, and Catalysis. Chemistry 2019; 25:4648-4653. [PMID: 30770614 DOI: 10.1002/chem.201900715] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Indexed: 02/03/2023]
Abstract
The B3 NO2 six-membered heterocycle (1,3-dioxa-5-aza-2,4,6-triborinane=DATB), comprising three different non-carbon period 2 elements, has been recently demonstrated to be a powerful catalyst for dehydrative condensation of carboxylic acids and amines. The tedious synthesis of DATB, however, has significantly diminished its utility as a catalyst, and thus the inherent chemical properties of the ring system have remained virtually unexplored. Here, a general and facile synthetic strategy that harnesses a pyrimidine-containing scaffold for the reliable installation of boron atoms is disclosed, giving rise to a series of Pym-DATBs from inexpensive materials in a modular fashion. The identification of a soluble Pym-DATB derivative allowed for the investigation of the dynamic nature of the B3 NO2 ring system, revealing differential ring-closing and -opening behaviors depending on the medium. Readily accessible Pym-DATBs proved their utility as efficient catalysts for dehydrative amidation with broad substrate scope and functional-group tolerance, offering a general and practical catalytic alternative to reagent-driven amidation.
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Affiliation(s)
- Christopher R Opie
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
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19
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20
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Noda H, Asada Y, Shibasaki M, Kumagai N. Neighboring Protonation Unveils Lewis Acidity in the B3NO2 Heterocycle. J Am Chem Soc 2019; 141:1546-1554. [DOI: 10.1021/jacs.8b10336] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Yasuko Asada
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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21
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Hu B, Jiang YY, Liu P, Zhang RX, Zhang Q, Liu TT, Bi S. The mechanism and structure–activity relationship of amide bond formation by silane derivatives: a computational study. Org Biomol Chem 2019; 17:9232-9242. [DOI: 10.1039/c9ob01605h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The detailed reaction mechanism and structure–activity relationship of substrates in silane reagent-mediated amide bond formation reactions are clarified.
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Affiliation(s)
- Ben Hu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Rui-Xue Zhang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Qi Zhang
- Institute of Industry & Equipment Technology
- Hefei University of Technology
- Hefei 230009
- People's Republic of China
| | - Tian-Tian Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
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22
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Potadar SM, Mali AS, Waghmode KT, Chaturbhuj GU. Repurposing n-butyl stannoic acid as highly efficient catalyst for direct amidation of carboxylic acids with amines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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23
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Li N, Wang L, Zhang L, Zhao W, Qiao J, Xu X, Liang Z. Air-stable Bis(pentamethylcyclopentadienyl) Zirconium Perfluorooctanesulfonate as an Efficient and Recyclable Catalyst for the Synthesis of N-substituted Amides. ChemCatChem 2018. [DOI: 10.1002/cctc.201800590] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ningbo Li
- Basic Medical College; Shanxi Medical University; No.56 Xinjian South Road Taiyuan 030001 P.R. China
| | - Lingxiao Wang
- Basic Medical College; Shanxi Medical University; No.56 Xinjian South Road Taiyuan 030001 P.R. China
| | - Liting Zhang
- Basic Medical College; Shanxi Medical University; No.56 Xinjian South Road Taiyuan 030001 P.R. China
| | - Wenjie Zhao
- Basic Medical College; Shanxi Medical University; No.56 Xinjian South Road Taiyuan 030001 P.R. China
| | - Jie Qiao
- Basic Medical College; Shanxi Medical University; No.56 Xinjian South Road Taiyuan 030001 P.R. China
| | - Xinhua Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Lushan South Road Changsha 410082 P.R. China
| | - Zhiwu Liang
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Lushan South Road Changsha 410082 P.R. China
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24
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Wang Z, Bao X, Xu M, Deng Z, Han Y, Wang N. Direct Formation of Amides from Carboxylic Acids and Amines Catalyzed by Niobium(V) Oxalate Hydrate. ChemistrySelect 2018. [DOI: 10.1002/slct.201800204] [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)
- Zhihui Wang
- College of Science, State Key Laboratory of Heavy Oil Processing; China University of Petroleum (Beijing); 102249 Beijing China
| | - Xinyu Bao
- College of Science, State Key Laboratory of Heavy Oil Processing; China University of Petroleum (Beijing); 102249 Beijing China
| | - Mengying Xu
- College of Science, State Key Laboratory of Heavy Oil Processing; China University of Petroleum (Beijing); 102249 Beijing China
| | - Zihao Deng
- College of Science, State Key Laboratory of Heavy Oil Processing; China University of Petroleum (Beijing); 102249 Beijing China
| | - Yongshun Han
- College of Science, State Key Laboratory of Heavy Oil Processing; China University of Petroleum (Beijing); 102249 Beijing China
| | - Ningfeng Wang
- Pipeline Marketing Company; Petrochina Pipeline Company; 065000 Langfang China
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25
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Braddock DC, Lickiss PD, Rowley BC, Pugh D, Purnomo T, Santhakumar G, Fussell SJ. Tetramethyl Orthosilicate (TMOS) as a Reagent for Direct Amidation of Carboxylic Acids. Org Lett 2018; 20:950-953. [PMID: 29394071 DOI: 10.1021/acs.orglett.7b03841] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Tetramethyl orthosilicate (TMOS) is shown to be an effective reagent for direct amidation of aliphatic and aromatic carboxylic acids with amines and anilines. The amide products are obtained in good to quantitative yields in pure form directly after workup without the need for any further purification. A silyl ester as the putative activated intermediate is observed by NMR methods. Amidations on a 1 mol scale are demonstrated with a favorable process mass intensity.
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Affiliation(s)
- D Christopher Braddock
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Paul D Lickiss
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Ben C Rowley
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - David Pugh
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Teresa Purnomo
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Gajan Santhakumar
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
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26
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Abstract
Waste-free catalytic assembly of α-amino acids is fueled by a multiboron catalyst that features a characteristic B3NO2 heterocycle, providing a versatile catalytic protocol wherein functionalized natural α-amino acid units are accommodated and commonly used protecting groups are tolerated. The facile dehydrative conditions eliminate the use of engineered peptide coupling reagents, exemplifying a greener catalytic alternative for peptide coupling. The catalysis is sufficiently robust to enable pentapeptide synthesis, constructing all four amide bond linkages in a catalytic fashion.
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Affiliation(s)
- Zijian Liu
- Institute of Microbial Chemistry (BIKAKEN), Tokyo , 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), Tokyo , 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo , 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo , 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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27
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Leggio A, Bagalà J, Belsito EL, Comandè A, Greco M, Liguori A. Formation of amides: one-pot condensation of carboxylic acids and amines mediated by TiCl 4. Chem Cent J 2017; 11:87. [PMID: 29086872 PMCID: PMC5602818 DOI: 10.1186/s13065-017-0318-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/05/2017] [Indexed: 11/10/2022] Open
Abstract
A general procedure for the synthesis of amides via the direct condensation of carboxylic acids and amines in the presence of TiCl4 is reported. The amidation reaction was performed in pyridine at 85 °C with a wide range of substrates providing the corresponding amide products in moderate to excellent yields and high purity. The reaction proceeds with low yields when both the carboxylic acid and the amine are sterically hindered. The process takes place with nearly complete preservation of the stereochemical integrity of chiral substrates.
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Affiliation(s)
- Antonella Leggio
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria Edificio Polifunzionale, 87036, Arcavacata, CS, Italy.
| | - Jessica Bagalà
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria Edificio Polifunzionale, 87036, Arcavacata, CS, Italy
| | - Emilia Lucia Belsito
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria Edificio Polifunzionale, 87036, Arcavacata, CS, Italy
| | - Alessandra Comandè
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria Edificio Polifunzionale, 87036, Arcavacata, CS, Italy
| | - Marianna Greco
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria Edificio Polifunzionale, 87036, Arcavacata, CS, Italy
| | - Angelo Liguori
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria Edificio Polifunzionale, 87036, Arcavacata, CS, Italy.
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28
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Swamy T, Raviteja P, Subba Reddy BV, Ravinder V. Efficient Method for the Synthesis of Benzamides from Benzoic Acids and Aryl Isothiocyanates using K2
HPO4. ChemistrySelect 2017. [DOI: 10.1002/slct.201701580] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tallapally Swamy
- Department of Chemistry; Kakatiya University; Warangal, Telangana State- 506009 India
| | - Padma Raviteja
- Department of Chemistry; Kakatiya University; Warangal, Telangana State- 506009 India
| | - Basi V. Subba Reddy
- Centre for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad, Telangana State- 500007 India
| | - Vadde Ravinder
- Department of Chemistry; Kakatiya University; Warangal, Telangana State- 506009 India
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29
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Gore BS, Senadi GC, Garkhedkar AM, Wang JJ. Efficient Approach to Amide Bond Formation with Nitriles and Peroxides: One-Pot Access to Boronated β-Ketoamides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Babasaheb Sopan Gore
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; No. 100, Shih-Chuan 1 Rd, Sanmin district Kaohsiung City 807 Taiwan
| | - Gopal Chandru Senadi
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; No. 100, Shih-Chuan 1 Rd, Sanmin district Kaohsiung City 807 Taiwan
| | - Amol Milind Garkhedkar
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; No. 100, Shih-Chuan 1 Rd, Sanmin district Kaohsiung City 807 Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; No. 100, Shih-Chuan 1 Rd, Sanmin district Kaohsiung City 807 Taiwan
- Department of Medical Research; Kaohsiung Medical University Hospital; No. 100, Tzyou 1 Rd, Sanmin District Kaohsiung City 807 Taiwan
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30
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Lundberg H, Tinnis F, Zhang J, Algarra AG, Himo F, Adolfsson H. Mechanistic Elucidation of Zirconium-Catalyzed Direct Amidation. J Am Chem Soc 2017; 139:2286-2295. [DOI: 10.1021/jacs.6b10973] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Helena Lundberg
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Fredrik Tinnis
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Jiji Zhang
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Andrés G. Algarra
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
- Departamento
de Ciencia de los Materiales e Ingeniería Metalúrgica
y Química Inorgánica, Universidad de Cádiz, Campus
Universitario de Puerto Real, 11510 Puerto Real, Spain
| | - Fahmi Himo
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Hans Adolfsson
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
- Department
of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
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31
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Unique physicochemical and catalytic properties dictated by the B3NO2 ring system. Nat Chem 2017; 9:571-577. [DOI: 10.1038/nchem.2708] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 11/23/2016] [Indexed: 12/12/2022]
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32
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Abstract
The present review offers an overview of nonclassical (e.g., with no pre- or in situ activation of a carboxylic acid partner) approaches for the construction of amide bonds. The review aims to comprehensively discuss relevant work, which was mainly done in the field in the last 20 years. Organization of the data follows a subdivision according to substrate classes: catalytic direct formation of amides from carboxylic and amines ( section 2 ); the use of carboxylic acid surrogates ( section 3 ); and the use of amine surrogates ( section 4 ). The ligation strategies (NCL, Staudinger, KAHA, KATs, etc.) that could involve both carboxylic acid and amine surrogates are treated separately in section 5 .
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Affiliation(s)
- Renata Marcia de Figueiredo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Simon Suppo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Marc Campagne
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
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33
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Dunetz JR, Magano J, Weisenburger GA. Large-Scale Applications of Amide Coupling Reagents for the Synthesis of Pharmaceuticals. Org Process Res Dev 2016. [DOI: 10.1021/op500305s] [Citation(s) in RCA: 411] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Joshua R. Dunetz
- Process
Chemistry, Gilead Sciences, 333 Lakeside Drive, Foster City, California 94404, United States
| | - Javier Magano
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Gerald A. Weisenburger
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
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34
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Affiliation(s)
- Helena Lundberg
- Department of Organic Chemistry,
The Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Hans Adolfsson
- Department of Organic Chemistry,
The Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
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35
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Mohy El Dine T, Erb W, Berhault Y, Rouden J, Blanchet J. Catalytic chemical amide synthesis at room temperature: one more step toward peptide synthesis. J Org Chem 2015; 80:4532-44. [PMID: 25849872 DOI: 10.1021/acs.joc.5b00378] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient method has been developed for direct amide bond synthesis between carboxylic acids and amines via (2-(thiophen-2-ylmethyl)phenyl)boronic acid as a highly active bench-stable catalyst. This catalyst was found to be very effective at room temperature for a large range of substrates with slightly higher temperatures required for challenging ones. This methodology can be applied to aliphatic, α-hydroxyl, aromatic, and heteroaromatic acids as well as primary, secondary, heterocyclic, and even functionalized amines. Notably, N-Boc-protected amino acids were successfully coupled in good yields with very little racemization. An example of catalytic dipeptide synthesis is reported.
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Affiliation(s)
- Tharwat Mohy El Dine
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Basse-Normandie, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - William Erb
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Basse-Normandie, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Yohann Berhault
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Basse-Normandie, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Jacques Rouden
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Basse-Normandie, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Jérôme Blanchet
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Basse-Normandie, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France
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36
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Mokhov VM, Popov YV, Budko II. Colloid and nano-sized catalysts in organic synthesis: X. Synthesis of carboxamides by direct amidation of carboxylic acids and transamidation catalyzed by colloid copper. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363215040088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Khamarui S, Maiti R, Mondal RR, Maiti DK. Reactant cum solvent water: generation of transient λ3-hypervalent iodine, its reactivity, mechanism and broad application. RSC Adv 2015. [DOI: 10.1039/c5ra21932a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
We have demonstrated a benign strategy for amides, imides and their chiral analogues using water as a source of carbonyl oxygen and medium. DFT-MIR studies and controlled experiments established the mechanism involving PhI(OH)2-bearing intermediates.
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Affiliation(s)
- Saikat Khamarui
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
| | - Rituparna Maiti
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
| | - Ramij R. Mondal
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
| | - Dilip K. Maiti
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
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38
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Yıldırım A. Metallic magnesium: an efficient catalyst toward N-aryl and N-alkyl substituted amides directly from aliphatic carboxylic acids. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1387-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Caldwell N, Campbell PS, Jamieson C, Potjewyd F, Simpson I, Watson AJB. Amidation of Esters with Amino Alcohols Using Organobase Catalysis. J Org Chem 2014; 79:9347-54. [DOI: 10.1021/jo501929c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Nicola Caldwell
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Peter S. Campbell
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Craig Jamieson
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Frances Potjewyd
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Iain Simpson
- Oncology
Innovative Medicines, AstraZeneca, Mereside, Alderley Park, Macclesfield SK10 4TG, U.K
| | - Allan J. B. Watson
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
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40
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Arkhipova M, Eichel S, Maas G. Hexaalkylguanidinium salts as ionic liquids – applications in titanium and aluminium alcoholate assisted synthesis. RSC Adv 2014. [DOI: 10.1039/c4ra09567g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The IL/catalyst systems mentioned in the title have been applied to the lactamisation of ω-aminocarboxylic acids and other condensation reactions.
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Affiliation(s)
- Maria Arkhipova
- Institute of Organic Chemistry I
- University of Ulm
- 89081 Ulm, Germany
| | - Svetlana Eichel
- Institute of Organic Chemistry I
- University of Ulm
- 89081 Ulm, Germany
| | - Gerhard Maas
- Institute of Organic Chemistry I
- University of Ulm
- 89081 Ulm, Germany
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41
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Lanigan RM, Sheppard TD. Recent Developments in Amide Synthesis: Direct Amidation of Carboxylic Acids and Transamidation Reactions. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300573] [Citation(s) in RCA: 283] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Lanigan RM, Starkov P, Sheppard TD. Direct synthesis of amides from carboxylic acids and amines using B(OCH2CF3)3. J Org Chem 2013; 78:4512-23. [PMID: 23586467 PMCID: PMC3671500 DOI: 10.1021/jo400509n] [Citation(s) in RCA: 167] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
B(OCH2CF3)3, prepared from readily
available B2O3 and 2,2,2-trifluoroethanol, is
as an effective reagent for the direct amidation of a variety of carboxylic
acids with a broad range of amines. In most cases, the amide products
can be purified by a simple filtration procedure using commercially
available resins, with no need for aqueous workup or chromatography.
The amidation of N-protected amino acids with both
primary and secondary amines proceeds effectively, with very low levels
of racemization. B(OCH2CF3)3 can
also be used for the formylation of a range of amines in good to excellent
yield, via transamidation of dimethylformamide.
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Affiliation(s)
- Rachel M Lanigan
- Department of Chemistry, University College London, Christopher Ingold Laboratories, 20 Gordon St, London, WC1H 0AJ, UK
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