1
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Barriault D, Ly HM, Allen MA, Gill MA, Beauchemin AM. Oxidative Syntheses of N, N-Dialkylhydroxylamines. J Org Chem 2024; 89:8767-8772. [PMID: 38814738 DOI: 10.1021/acs.joc.4c00674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Despite the wide utility of hydroxylamines in organic synthesis, relatively few are commercially available, and there is a need for direct, efficient, and selective methods for their synthesis. Herein, we report two complementary methods to accomplish direct oxidation of secondary amines using UHP as an oxidant. The first method uses 2,2,2-trifluoroethanol (TFE) and a large excess of amine. Isolation of hydroxylamine products is enabled by selective salt formation, and recovery of excess amine is demonstrated. The second method uses hexafluoroacetone as an additive and is highlighted by the 1:1 stoichiometry between the oxidant and amine.
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Affiliation(s)
- Daniel Barriault
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Huy M Ly
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Meredith A Allen
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Monica A Gill
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - André M Beauchemin
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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2
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Mohiti M, Lu Y, He H, Ni SF, Somfai P. Regio- and Enantioselective Synthesis of 1,2-Diamines by Formal Hydroamination of Enamines: Scope, Mechanism, and Asymmetric Synthesis of Orthogonally Protected Bis-Piperazines as a Privileged Scaffold. Chemistry 2024; 30:e202303078. [PMID: 38205968 DOI: 10.1002/chem.202303078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/12/2024]
Abstract
We have previously reported the first formal hydroamination of enamines for the synthesis of chiral 1,2-diamines. Here, we describe: (i) the discovery, optimization, and substrate expansion of this reaction; (ii) a novel and straightforward protocol for the "click-type" synthesis of enamines in quantitative yield utilizing sodium sulfate in a dual role as an ancillary and dehydrating agent without the need for workup or purification; (iii) the application of this methodology to the first enantioselective synthesis of orthogonally protected 1,1'-(1-(4-fluorophenyl)ethane-1,2-diyl) piperazines, a scaffold for rapid lead optimization in drug discovery; (iv) a computational investigation into the mechanism and rationalization of the enantioselectivities of the reaction.
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Affiliation(s)
- Maziar Mohiti
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
| | - Yu Lu
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
| | - Hui He
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, P.R. China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, P.R. China
| | - Peter Somfai
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
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3
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Anderson JM, Poole DL, Cook GC, Murphy JA, Measom ND. Organometallic Bridge Diversification of Bicyclo[1.1.1]pentanes. Chemistry 2024; 30:e202304070. [PMID: 38117748 DOI: 10.1002/chem.202304070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 12/22/2023]
Abstract
Bicyclo[1.1.1]pentane (BCP) derivatives have attracted significant recent interest in drug discovery as alkyne, tert-butyl and arene bioisosteres, where their incorporation is frequently associated with increased compound solubility and metabolic stability. While strategies for functionalisation of the bridgehead (1,3) positions are extensively developed, platforms allowing divergent substitution at the bridge (2,4,5) positions remain limited. Recent reports have introduced 1-electron strategies for arylation and incorporation of a small range of other substituents, but are limited in terms of scope, yields or practical complexity. Herein, we show the synthesis of diverse 1,2,3-trifunctionalised BCPs through lithium-halogen exchange of a readily accessible BCP bromide. When coupled with medicinally relevant product derivatisations, our developed 2-electron "late stage" approach provides rapid and straightforward access to unprecedented BCP structural diversity (>20 hitherto-unknown motifs reported). Additionally, we describe a method for the synthesis of enantioenriched "chiral-at-BCP" bicyclo[1.1.1]pentanes through a novel stereoselective bridgehead desymmetrisation.
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Affiliation(s)
- Joseph M Anderson
- Medicinal Chemistry, GSK, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, UK, SG1 2NY
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, UK, G1 1XL
| | - Darren L Poole
- Medicinal Chemistry, GSK, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, UK, SG1 2NY
| | - Gemma C Cook
- Medicinal Chemistry, GSK, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, UK, SG1 2NY
| | - John A Murphy
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, UK, G1 1XL
| | - Nicholas D Measom
- Medicinal Chemistry, GSK, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, UK, SG1 2NY
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4
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Fleetwood TD, Kerr WJ, Mason J. Copper-Mediated N-Trifluoromethylation of O-Benzoylhydroxylamines. Chemistry 2024; 30:e202303314. [PMID: 38018464 PMCID: PMC10952365 DOI: 10.1002/chem.202303314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 11/30/2023]
Abstract
The use of trifluoromethyl containing compounds is well established within medicinal chemistry, with a range of approved drugs containing C-CF3 and O-CF3 moieties. However, the utilisation of the N-CF3 functional group remains relatively unexplored. This may be attributed to the challenging synthesis of this unit, with many current methods employing harsh conditions or less accessible reagents. A robust methodology for the N-trifluoromethylation of secondary amines has been developed, which employs an umpolung strategy in the form of a copper-catalysed electrophilic amination. The method is operationally simple, uses mild, inexpensive reagents, and has been used to synthesise a range of novel, structurally complex N-CF3 containing compounds.
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Affiliation(s)
- Thomas D. Fleetwood
- Medicinal ChemistryGSK Medicines Research CentreGunnels Wood RoadSG1 2NYStevenageEnglandU.K.
- Department of Pure and Applied ChemistryUniversity of StrathclydeG1 1XLGlasgowScotlandU.K.
| | - William J. Kerr
- Department of Pure and Applied ChemistryUniversity of StrathclydeG1 1XLGlasgowScotlandU.K.
| | - Joseph Mason
- Medicinal ChemistryGSK Medicines Research CentreGunnels Wood RoadSG1 2NYStevenageEnglandU.K.
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5
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Ma C, Fan W, Qin W, Guo Y, Ma L, Belzile N, Deng T. Zein-enhanced sodium alginate/thiostannate microsphere adsorbent Zein@SA/KBS for efficient removal of cesium from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132600. [PMID: 37742377 DOI: 10.1016/j.jhazmat.2023.132600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/12/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023]
Abstract
Although efficient removal of Cs from wastewater is of great importance because of the nuclear energy sustainable development and public health, removing cesium is challenging for the high concentrations of sodium and potassium ions coexist. In this work, we synthesized the first novel bismuth-doped layered tin sulfide (KBS) and applied it to the efficient green adsorption of liquid cesium resources. KBS could reach the adsorption equilibrium for Cs+ within only 2 min with a theoretical adsorption capacity of 425.55 mg/g. Furthermore, the adsorption performance remained reliable after 10 cycles of use. The structure and properties of KBS were explained at the molecular level by DFT calculations, and the calculated results were in sound agreement with the experimental data. Meanwhile, in this study, the material was reinforced and shaped by the electrostatic interaction of Zein and sodium alginate hydrogel, and finally, Zein@SA/KBS spherical composite adsorbent was obtained. The problem of the difficult recovery of adsorbent and the secondary contamination was solved. The adsorption performance of Zein@SA/KBS on Cs+ was better than most composite adsorbents and showed reliable stability. Therefore, the new microspherical adsorbent (Zein@SA/KBS) has great potential for industrial application in removing radioactive cesium from wastewater.
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Affiliation(s)
- Chi Ma
- Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Wenlei Fan
- Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Wei Qin
- Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yafei Guo
- Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Lichun Ma
- Qinghai Salt Lake Industry Co., Ltd., Geermu 816000, PR China
| | - Nelson Belzile
- School of Natural Sciences, Laurentian University, Ontario P3E 2C6, Canada
| | - Tianlong Deng
- Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, PR China.
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6
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Lesnikov VK, Golovanov IS, Nelyubina YV, Aksenova SA, Sukhorukov AY. Crown-hydroxylamines are pH-dependent chelating N,O-ligands with a potential for aerobic oxidation catalysis. Nat Commun 2023; 14:7673. [PMID: 37996433 PMCID: PMC10667252 DOI: 10.1038/s41467-023-43530-6] [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: 07/06/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023] Open
Abstract
Despite the rich coordination chemistry, hydroxylamines are rarely used as ligands for transition metal coordination compounds. This is partially because of the instability of these complexes that undergo decomposition, disproportionation and oxidation processes involving the hydroxylamine motif. Here, we design macrocyclic poly-N-hydroxylamines (crown-hydroxylamines) that form complexes containing a d-metal ion (Cu(II), Ni(II), Mn(II), and Zn(II)) coordinated by multiple (up to six) hydroxylamine fragments. The stability of these complexes is likely to be due to a macrocycle effect and strong intramolecular H-bonding interactions between the N-OH groups. Crown-hydroxylamine complexes exhibit interesting pH-dependent behavior where the efficiency of metal binding increases upon deprotonation of the hydroxylamine groups. Copper complexes exhibit catalytic activity in aerobic oxidation reactions under ambient conditions, whereas the corresponding complexes with macrocyclic polyamines show poor or no activity. Our results show that crown-hydroxylamines display anomalous structural features and chemical behavior with respect to both organic hydroxylamines and polyaza-crowns.
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Affiliation(s)
- Vladislav K Lesnikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Leninsky prospect, 47, Moscow, Russian Federation
| | - Ivan S Golovanov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Leninsky prospect, 47, Moscow, Russian Federation
| | - Yulia V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Vavilova str. 28, Moscow, Russian Federation
- Moscow Institute of Physics and Technology (National Research University), 141700, Institutskiy per. 9, Dolgoprudny, Moscow Region, Russian Federation
| | - Svetlana A Aksenova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Vavilova str. 28, Moscow, Russian Federation
- Moscow Institute of Physics and Technology (National Research University), 141700, Institutskiy per. 9, Dolgoprudny, Moscow Region, Russian Federation
| | - Alexey Yu Sukhorukov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Leninsky prospect, 47, Moscow, Russian Federation.
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7
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Hill J, Beckler TD, Crich D. Recent Advances in the Synthesis of Di- and Trisubstituted Hydroxylamines. Molecules 2023; 28:molecules28062816. [PMID: 36985788 PMCID: PMC10051932 DOI: 10.3390/molecules28062816] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
As an underrepresented functional group in bioorganic and medicinal chemistry, the hydroxylamine unit has historically received little attention from the synthetic community. Recent developments, however, suggest that hydroxylamines may have broader applications such that a review covering recent developments in the synthesis of this functional group is timely. With this in mind, this review primarily covers developments in the past 15 years in the preparation of di- and trisubstituted hydroxylamines. The mechanism of the reactions and key features and shortcomings are discussed throughout the review.
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Affiliation(s)
- Jarvis Hill
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, GA 30602, USA
- Department of Chemistry, University of Georgia, 302 East Campus Road, Athens, GA 30602, USA
| | - Thomas D Beckler
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, GA 30602, USA
- Department of Chemistry, University of Georgia, 302 East Campus Road, Athens, GA 30602, USA
| | - David Crich
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, GA 30602, USA
- Department of Chemistry, University of Georgia, 302 East Campus Road, Athens, GA 30602, USA
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
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8
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Janardan Pawar T, Bonilla‐Landa I, Reyes‐Luna A, Barrera‐Méndez. F, Javier Enríquez‐Medrano F, Enrique Díaz‐de‐León‐Gómez R, Luis Olivares‐Romero J. Chiral Hydroxamic Acid Ligands in Asymmetric Synthesis: The Evolution of Metal‐Catalyzed Oxidation Reactions. ChemistrySelect 2023. [DOI: 10.1002/slct.202300555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Tushar Janardan Pawar
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | - Israel Bonilla‐Landa
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | - Alfonso Reyes‐Luna
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | - Felipe Barrera‐Méndez.
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
- Catedrático CONACyT en el Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | | | - Ramón Enrique Díaz‐de‐León‐Gómez
- Research Center in Applied Chemistry (CIQA) Enrique Reyna Hermosillo, No. 140. Col. San José de los Cerritos Saltillo, 25294 México
| | - José Luis Olivares‐Romero
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
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9
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Chen J, Xu Y, Shao W, Ji J, Wang B, Yang M, Mao G, Xiao F, Deng GJ. Pd-Catalyzed C–O Bond Formation Enabling the Synthesis of Congested N, N, O-Trisubstituted Hydroxylamines. Org Lett 2022; 24:8271-8276. [DOI: 10.1021/acs.orglett.2c02975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaxing Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Yongzhuo Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Wen Shao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Jianhua Ji
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Boqiang Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Muyang Yang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Fuhong Xiao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P. R. China
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10
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Gasser VCM, Makai S, Morandi B. The advent of electrophilic hydroxylamine-derived reagents for the direct preparation of unprotected amines. Chem Commun (Camb) 2022; 58:9991-10003. [PMID: 35993918 PMCID: PMC9453917 DOI: 10.1039/d2cc02431d] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/20/2022] [Indexed: 11/21/2022]
Abstract
Electrophilic aminating reagents have seen a renaissance in recent years as effective nitrogen sources for the synthesis of unprotected amino functionalities. Based on their reactivity, several noble and non-noble transition metal catalysed amination reactions have been developed. These include the aziridination and difunctionalisation of alkenes, the amination of arenes as well as the synthesis of aminated sulfur compounds. In particular, the use of hydroxylamine-derived (N-O) reagents, such as PONT (PivONH3OTf), has enabled the introduction of unprotected amino groups on various different feedstock compounds, such as alkenes, arenes and thiols. This strategy obviates undesired protecting-group manipulations and thus improves step efficiency and atom economy. Overall, this feature article gives a recent update on several reactions that have been unlocked by employing versatile hydroxylamine-derived aminating reagents, which facilitate the generation of unprotected primary, secondary and tertiary amino groups.
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Affiliation(s)
- Valentina C M Gasser
- Laboratorium für Organische Chemie ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland.
| | - Szabolcs Makai
- Laboratorium für Organische Chemie ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland.
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland.
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11
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Zhang JH, Jiang LL, Hu SJ, Li JZ, Yu XC, Liu FL, Guan YT, Lei KW, Wei WT. The polychloromethylation/acyloxylation of 1,6-enynes with chloroalkanes and diacyl peroxides through dual-role designs. Org Biomol Chem 2022; 20:7067-7070. [PMID: 35993972 DOI: 10.1039/d2ob01330d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel polychloromethylation/acyloxylation of 1,6-enynes with chloroalkanes and diacyl peroxides through dual-role designs has been developed to prepare 2-pyrrolidinone derivatives with polychloromethyl units with the use of an inexpensive copper salt under mild conditions. This strategy includes two dual-role designs, not only improving atomic utilization but also allowing a cleaner process. The wide substrate scope and simple reaction conditions demonstrate the practicability of this protocol.
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Affiliation(s)
- Jun-Hao Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Li-Lin Jiang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Sen-Jie Hu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Jiao-Zhe Li
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Xuan-Chi Yu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Fa-Liang Liu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Yu-Tao Guan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Ke-Wei Lei
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Wen-Ting Wei
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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12
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Mechanistic aspects of electro-oxidative generated triazolinediones in the presence of amines-EC' versus ECE mechanism. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Allen MA, Ly HM, O'Keefe GF, Beauchemin AM. A redox-enabled strategy for intramolecular hydroamination. Chem Sci 2022; 13:7264-7268. [PMID: 35799811 PMCID: PMC9214914 DOI: 10.1039/d2sc00481j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/27/2022] [Indexed: 12/18/2022] Open
Abstract
Metal- or acid-catalyzed intramolecular hydroamination and Cope-type intramolecular hydroamination, a distinct concerted approach using hydroxylamines, typically suffer from significant synthetic limitations. Herein we report a process for intramolecular hydroamination that uses a redox-enabled strategy relying on efficient in situ generation of hydroxylamines by oxidation, followed by Cope-type hydroamination, then reduction of the resulting pyrrolidine N-oxide. The steps are performed sequentially in a single pot, no catalyst is required, the conditions are mild, the process is highly functional group tolerant, and no chromatography is generally required for isolation. A robustness screen and a gram-scale example further support the practicality of this approach. A redox strategy enables hydroaminations: mild conditions allows efficient hydroxylamine formation & cyclization, then B2(OH)4 as reductant also facilitates isolation!![]()
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Affiliation(s)
- Meredith A Allen
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa 10 Marie-Curie Ottawa ON K1N 6N5 Canada
| | - Huy M Ly
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa 10 Marie-Curie Ottawa ON K1N 6N5 Canada
| | - Geneviève F O'Keefe
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa 10 Marie-Curie Ottawa ON K1N 6N5 Canada
| | - André M Beauchemin
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa 10 Marie-Curie Ottawa ON K1N 6N5 Canada
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14
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Sampaio-Dias IE, Silva-Reis SC, Pires-Lima BL, Correia XC, Costa-Almeida HF. A Convenient On-Site Oxidation Strategy for the N-Hydroxylation of Melanostatin Neuropeptide Using Cope Elimination. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1695-1095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractA convenient synthetic protocol for the unprecedented N-hydroxylation of proline residue in Melanostatin (MIF-1) neuropeptide is reported. This methodology is grounded on the incorporation of N-(cyanoethyl)prolyl residue followed by on-site oxidation by Cope elimination with m-chloroperbenzoic acid, exploring the unrecognized dual role of the cyanoethyl group as an effective N-protecting group under peptide synthesis conditions and as a suitable leaving group during the chemoselective on-site N-oxidation. Following this protocol N-hydroxy-MIF-1 is obtained in 78% global yield from N-(cyanoethyl)-l-proline. This synthetic approach opens a new avenue for access to N-hydroxylated Melanostatin analogues with direct application in neurochemistry and Parkinson’s research.
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15
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Li X, Xing X, Zhao S, Zhu S, Wang B, Lan M, Song X. Carbon dot-based fluorescent and colorimetric sensor for sensitive and selective visual detection of benzoyl peroxide. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Lesnikov VK, Nelyubina YV, Sukhorukov AY. Piperazine-1,4-diol (PipzDiol): synthesis, stereodynamics and assembly of supramolecular hydrogen-bonded 2D networks. NEW J CHEM 2022. [DOI: 10.1039/d2nj03012h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The manuscript describes a novel small building block, 1,4-piperazinediol (PipzDiol), which has an extended H-bond donor structure compared to piperazine.
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Affiliation(s)
- Vladislav K. Lesnikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Leninsky prospect, 47, Moscow, Russian Federation
| | - Yulia V. Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str. 28, 119991, Moscow, Russian Federation
| | - Alexey Yu. Sukhorukov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Leninsky prospect, 47, Moscow, Russian Federation
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17
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Wang W, Kale VS, Cao Z, Lei Y, Kandambeth S, Zou G, Zhu Y, Abouhamad E, Shekhah O, Cavallo L, Eddaoudi M, Alshareef HN. Molecular Engineering of Covalent Organic Framework Cathodes for Enhanced Zinc-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103617. [PMID: 34365688 DOI: 10.1002/adma.202103617] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/08/2021] [Indexed: 06/13/2023]
Abstract
Covalent organic frameworks (COFs) are potentially promising electrode materials for electrochemical charge storage applications thanks to their pre-designable reticular chemistry with atomic precision, allowing precise control of pore size, redox-active functional moieties, and stable covalent frameworks. However, studies on the mechanistic and practical aspects of their zinc-ion storage behavior are still limited. In this study, a strategy to enhance the electrochemical performance of COF cathodes in zinc-ion batteries (ZIBs) by introducing the quinone group into 1,4,5,8,9,12-hexaazatriphenylene-based COFs is reported. Electrochemical characterization demonstrates that the introduction of the quinone groups in the COF significantly pushes up the Zn2+ storage capability against H+ and elevates the average (dis-)charge potential in aqueous ZIBs. Computational and experimental analysis further reveals the favorable redox-active sites that host Zn2+ /H+ in COF electrodes and the root cause for the enhanced electrochemical performance. This work demonstrates that molecular engineering of the COF structure is an effective approach to achieve practical charge storage performance.
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Affiliation(s)
- Wenxi Wang
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Vinayak S Kale
- Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, Functional Materials Design, Discovery and Development Research Group (FMD 3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Zhen Cao
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yougjiu Lei
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Sharath Kandambeth
- Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, Functional Materials Design, Discovery and Development Research Group (FMD 3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Guodong Zou
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yunpei Zhu
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Edy Abouhamad
- King Abdullah University of Science and Technology (KAUST), Core Laboratories, Thuwal, 23955-6900, Saudi Arabia
| | - Osama Shekhah
- Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, Functional Materials Design, Discovery and Development Research Group (FMD 3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Mohamed Eddaoudi
- Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, Functional Materials Design, Discovery and Development Research Group (FMD 3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Husam N Alshareef
- Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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18
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Lynch-Colameta T, Greta S, Snyder SA. Synthesis of aza-quaternary centers via Pictet-Spengler reactions of ketonitrones. Chem Sci 2021; 12:6181-6187. [PMID: 33996016 PMCID: PMC8098696 DOI: 10.1039/d1sc00882j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 03/12/2021] [Indexed: 01/25/2023] Open
Abstract
Despite the array of advances that have been made in Pictet-Spengler chemistry, particularly as it relates to the synthesis of β-carboline derivatives of both natural and designed origin, the ability to use such reactions to generate aza-quaternary centers remains limited. Herein, we report a simple procedure that enables the synthesis of a variety of such products by harnessing the distinct reactivity profiles of ketonitrones as activated by commercially available acyl chlorides. Notably, the reaction process is mild, fast, and high-yielding (54-97%) for a diverse collection of substrates, including some typically challenging ones, such as indole cores with electron-deficient substituents. In addition, by deploying an acyl bromide in combination with a thiourea promoter, a catalytic, asymmetric version has been established, leading to good levels of enantioselectivity (up to 83% ee) for several ketonitrones. Finally, the resultant N-O bonds within the products can also be functionalized in several unique ways, affording valuable complementarity to existing Pictet-Spengler variants based on the use of imines.
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Affiliation(s)
- Tessa Lynch-Colameta
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Sarah Greta
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Scott A Snyder
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
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19
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Li Z, Kumagai N, Shibasaki M. Catalytic Asymmetric 1,3-Dipolar Cycloaddition of α,β-Unsaturated Amide and Azomethine Imine. Chem Pharm Bull (Tokyo) 2021; 68:552-554. [PMID: 32475860 DOI: 10.1248/cpb.c20-00130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
α,β-Unsaturated amides were incorporated as viable dipolarophiles in a catalytic asymmetric 1,3-dipolar cycloaddition of azomethine imines. The use of a 7-azaindoline auxiliary was essential to acquire sufficient reactivity with excellent diastereoselectivity, likely due to the chelating activation of the amide by the In(III)/bishydroxamic acid complex. Although the enantioselectivity remains unsatisfactory, this work is an important step toward the development of an asymmetric catalysis utilizing stable and low-reactive substrates.
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Affiliation(s)
- Zhao Li
- Institute of Microbial Chemistry
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20
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Kawamura S, Mukherjee S, Sodeoka M. Recent advances in reactions using diacyl peroxides as sources of O- and C-functional groups. Org Biomol Chem 2021; 19:2096-2109. [DOI: 10.1039/d0ob02349c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This review summarizes recent advances in reactions utilizing diacyl peroxides as O- and C-sources, with examples illustrating how the reactivity of diacyl peroxides in organic reactions can be controlled.
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Affiliation(s)
- Shintaro Kawamura
- Catalysis and Integrated Research Group
- RIKEN Center for Sustainable Resource Science
- Wako
- Japan
- Synthetic Organic Chemistry Laboratory
| | - Subrata Mukherjee
- Catalysis and Integrated Research Group
- RIKEN Center for Sustainable Resource Science
- Wako
- Japan
| | - Mikiko Sodeoka
- Catalysis and Integrated Research Group
- RIKEN Center for Sustainable Resource Science
- Wako
- Japan
- Synthetic Organic Chemistry Laboratory
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21
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Noda H, Asada Y, Shibasaki M. O-Benzoylhydroxylamines as Alkyl Nitrene Precursors: Synthesis of Saturated N-Heterocycles from Primary Amines. Org Lett 2020; 22:8769-8773. [PMID: 32914633 DOI: 10.1021/acs.orglett.0c02842] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We introduce O-benzoylhydroxylamines as competent alkyl nitrene precursors. The combination of readily available, stable substrates and a proficient rhodium catalyst provides a straightforward means for the construction of various pyrrolidine rings from the corresponding primary amines. Preliminary mechanistic investigation suggests that the structure of the nitrene precursor plays a role in determining the nature of the resulting reactive intermediate.
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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
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22
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Zhang Q, Li J, Li J, Yuan S, Li D. An unprecedented cobalt-catalyzed selective aroylation of primary amines with aroyl peroxides. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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23
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Hill J, Hettikankanamalage AA, Crich D. Diversity-Oriented Synthesis of N, N, O-Trisubstituted Hydroxylamines from Alcohols and Amines by N-O Bond Formation. J Am Chem Soc 2020; 142:14820-14825. [PMID: 32803971 DOI: 10.1021/jacs.0c05991] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Magnesium dialkylamides react with alcohol-derived 2-methyl-2-tetrahydropyranyl alkyl peroxides (MTHPs) in tetrahydrofuran at 0 °C to give N,N,O-trisubstituted hydroxylamines suitable for medicinal chemistry purposes in good to excellent yields. A wide range of secondary alkyl and aryl amines and primary and secondary alcohol-derived MTHPs are compatible with the described reaction which, coupled with the enormous diversity of commercially available alcohols and secondary amines, suggests broad applicability of the reaction in fragment-based library design.
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Affiliation(s)
- Jarvis Hill
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, Georgia 30602, United States.,Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
| | - Asiri A Hettikankanamalage
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, Georgia 30602, United States.,Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
| | - David Crich
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, Georgia 30602, United States.,Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States.,Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
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24
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Affiliation(s)
- Moriah Locklear
- Department of Chemistry; University of Nebraska-Lincoln; 68588-0304 Lincoln NE USA
| | - Patrick H. Dussault
- Department of Chemistry; University of Nebraska-Lincoln; 68588-0304 Lincoln NE USA
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25
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Baker Dockrey SA, Narayan ARH. Photocatalytic Oxidative Dearomatization of Orcinaldehyde Derivatives. Org Lett 2020; 22:3712-3716. [PMID: 32293185 DOI: 10.1021/acs.orglett.0c01207] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
For decades, oxidative dearomatization has been employed as a key step in the synthesis of complex molecules. Challenges in controlling the chemo- and site-selectivity of this transformation have sparked the development of a variety of specialized oxidants; however, these result in stoichiometric amounts of organic byproducts. Herein, we describe a photocatalytic method for oxidative dearomatization using molecular oxygen as the stoichiometric oxidant. This provides environmentally benign entry to highly substituted o-quinols, reactive intermediates which can be elaborated to a number of natural product families.
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Affiliation(s)
- Summer A Baker Dockrey
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Alison R H Narayan
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, United States.,Program in Chemical Biology, University of Michigan, Ann Arbor, Michigan 48109, United States
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26
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Horn A, Dussault PH. A click-based modular approach to introduction of peroxides onto molecules and nanostructures. RSC Adv 2020; 10:44408-44429. [PMID: 35517136 PMCID: PMC9058499 DOI: 10.1039/d0ra09088c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 11/20/2020] [Indexed: 12/21/2022] Open
Abstract
Copper-promoted azide/alkyne cycloadditions (CuAAC) are explored as a tool for modular introduction of peroxides onto molecules and nanomaterials.
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Affiliation(s)
- Alissa Horn
- Department of Chemistry
- University of Nebraska-Lincoln
- Lincoln
- USA
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27
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Chiarotto I, Mattiello L, Pandolfi F, Rocco D, Feroci M, Petrucci R. Electrochemical Oxidation of Theophylline in Organic Solvents: HPLC‐PDA‐ESI‐MS/MS Analysis of the Oxidation Products. ChemElectroChem 2019. [DOI: 10.1002/celc.201901071] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Isabella Chiarotto
- Department Scienze di Base e Applicate per l'Ingegneria (SBAI) Sapienza University of Rome via Castro Laurenziano, 7 00161 Roma Italy
| | - Leonardo Mattiello
- Department Scienze di Base e Applicate per l'Ingegneria (SBAI) Sapienza University of Rome via Castro Laurenziano, 7 00161 Roma Italy
| | - Fabiana Pandolfi
- Department Scienze di Base e Applicate per l'Ingegneria (SBAI) Sapienza University of Rome via Castro Laurenziano, 7 00161 Roma Italy
| | - Daniele Rocco
- Department Scienze di Base e Applicate per l'Ingegneria (SBAI) Sapienza University of Rome via Castro Laurenziano, 7 00161 Roma Italy
| | - Marta Feroci
- Department Scienze di Base e Applicate per l'Ingegneria (SBAI) Sapienza University of Rome via Castro Laurenziano, 7 00161 Roma Italy
| | - Rita Petrucci
- Department Scienze di Base e Applicate per l'Ingegneria (SBAI) Sapienza University of Rome via Castro Laurenziano, 7 00161 Roma Italy
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