1
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Zhang X, Yang S, Zeng X. Ring Contraction by Rearrangement of Sterically Congested Cyclic (Amino)(aryl)carbenes. J Org Chem 2024. [PMID: 38808612 DOI: 10.1021/acs.joc.4c00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The rearrangement of sterically congested cyclic (amino)(aryl)carbenes (CAArCs) by the reaction of related iminium salts with potassium bis(trimethylsilyl)amide is reported, allowing for forming benzocyclobutanimines via a ring contraction process. Mechanistic studies by theoretical calculations indicate that the formation of conjugated ketenimines as intermediates could be considered, in which steric hindrance caused by N-alkyl motifs of CAArCs plays an important role in promoting the ring-opening by the cleavage of C-N bond.
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Affiliation(s)
- Xiaoyu Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shangru Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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2
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Santos TCB, Futerman AH. The fats of the matter: Lipids in prebiotic chemistry and in origin of life studies. Prog Lipid Res 2023; 92:101253. [PMID: 37659458 DOI: 10.1016/j.plipres.2023.101253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
The unique biophysical and biochemical properties of lipids render them crucial in most models of the origin of life (OoL). Many studies have attempted to delineate the prebiotic pathways by which lipids were formed, how micelles and vesicles were generated, and how these micelles and vesicles became selectively permeable towards the chemical precursors required to initiate and support biochemistry and inheritance. Our analysis of a number of such studies highlights the extremely narrow and limited range of conditions by which an experiment is considered to have successfully modeled a role for lipids in an OoL experiment. This is in line with a recent proposal that bias is introduced into OoL studies by the extent and the kind of human intervention. It is self-evident that OoL studies can only be performed by human intervention, and we now discuss the possibility that some assumptions and simplifications inherent in such experimental approaches do not permit determination of mechanistic insight into the roles of lipids in the OoL. With these limitations in mind, we suggest that more nuanced experimental approaches than those currently pursued may be required to elucidate the generation and function of lipids, micelles and vesicles in the OoL.
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Affiliation(s)
- Tania C B Santos
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
| | - Anthony H Futerman
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
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3
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Dentoni Litta A, Buonerba A, Casu A, Falqui A, Capacchione C, Franconetti A, Garcia H, Grassi A. Highly efficient hydroamination of phenylacetylenes with anilines catalysed by gold nanoparticles embedded in nanoporous polymer matrix: Insight into the reaction mechanism by kinetic and DFT investigations. J Catal 2021. [DOI: 10.1016/j.jcat.2021.05.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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4
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Bastakoti BP, Kuila D, Salomon C, Konarova M, Eguchi M, Na J, Yamauchi Y. Metal-incorporated mesoporous oxides: Synthesis and applications. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123348. [PMID: 32763679 DOI: 10.1016/j.jhazmat.2020.123348] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/24/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Mesoporous oxides are outstanding metal nanoparticle catalyst supports owing to their well-defined porous structures. Such mesoporous architectures not only prevent the aggregation of metal nanoparticles but also enhance their catalytic performance. Metal/metal oxide heterojunctions exhibit unique chemical and physical properties because of the surface reconstruction around the junction and electron transfer/interaction across the interface. This article reviews the methods used for synthesizing metal-supported hybrid nanostructures and their applications as catalysts for environmental remediation and sensors for detecting hazardous materials.
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Affiliation(s)
- Bishnu Prasad Bastakoti
- Department of Chemistry, Applied Sciences & Technology, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA.
| | - Debasish Kuila
- Department of Chemistry, Applied Sciences & Technology, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane, Queensland, Australia
| | - Muxina Konarova
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Miharu Eguchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia; International Research Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Jongbeom Na
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia; International Research Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia; International Research Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia; Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea
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5
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Affiliation(s)
- Manideepa Sengupta
- Nano Catalysis, Light Stock Processing Division CSIR-Indian Institute of Petroleum Dehradun-248005 Uttarakhand India
- Department of Chemistry University of Kalyani Kalyani-741235 West Bengal India
| | - Subhasis Das
- Laboratory of Industrial Chemistry Ruhr University Bochum 44780 Bochum Germany
| | - Sk. Manirul Islam
- Department of Chemistry University of Kalyani Kalyani-741235 West Bengal India
| | - Ankur Bordoloi
- Nano Catalysis, Light Stock Processing Division CSIR-Indian Institute of Petroleum Dehradun-248005 Uttarakhand India
- Academy of Scientific & Innovative Research (AcSIR) Ghaziabad 201002 India
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6
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Davaasuren B, Emwas AH, Rothenberger A. MAu 2GeS 4-Chalcogel (M = Co, Ni): Heterogeneous Intra- and Intermolecular Hydroamination Catalysts. Inorg Chem 2017; 56:9609-9616. [PMID: 28787154 DOI: 10.1021/acs.inorgchem.7b01099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
High surface area macroporous chalcogenide aerogels (chalcogels) MAu2GeS4 (M = Co, Ni) were prepared from K2Au2GeS4 precursor and Co(OAc)2 or NiCl2 by one-pot sol-gel metathesis reactions in aqueous media. The MAu2GeS4-chalcogels were screened for catalytic intramolecular hydroamination of 4-pentyn-1-amine substrate at different temperatures. 87% and 58% conversion was achieved at 100 °C, using CoAu2GeS4- and NiAu2GeS4-chalcogels respectively, and the reaction kinetics follows the first order. It was established that the catalytic performance of the aerogels is associated with the M2+ centers present in the structure. Intermolecular hydroamination of aniline with 1-R-4-ethynylbenzene (R = -H, -OCH3, -Br, -F) was carried out at 100 °C using CoAu2GeS4-chalcogel catalyst, due to its promising catalytic performance. The CoAu2GeS4-chalcogel regioselectively converted the pair of substrates to respective Markovnikov products, (E)-1-(4-R-phenyl)-N-phenylethan-1-imine, with 38% to 60% conversion.
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Affiliation(s)
- Bambar Davaasuren
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Abdul-Hamid Emwas
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Alexander Rothenberger
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
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7
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Adachi Y, Kawasaki H, Nagata T, Obora Y. Thiolate-protected Gold Nanoclusters Au25(phenylethanethiol)18: An Efficient Catalyst for the Synthesis of Propargylamines from Aldehydes, Amines, and Alkynes. CHEM LETT 2016. [DOI: 10.1246/cl.160813] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Sengupta M, Bag A, Das S, Shukla A, Konathala LNS, Naidu CA, Bordoloi A. Reaction and Mechanistic Studies of Heterogeneous Hydroamination over Support-Stabilized Gold Nanoparticles. ChemCatChem 2016. [DOI: 10.1002/cctc.201600762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manideepa Sengupta
- Refinery Technology Division; CSIR-Indian Institute of Petroleum, Dehradun-; 248005 Uttarakhand India
| | - Arijit Bag
- Chemical Science Division; IISER Kolkata, Mohanpur; Nadia West Bengal India
| | - Subhasis Das
- Refinery Technology Division; CSIR-Indian Institute of Petroleum, Dehradun-; 248005 Uttarakhand India
| | - Astha Shukla
- Refinery Technology Division; CSIR-Indian Institute of Petroleum, Dehradun-; 248005 Uttarakhand India
| | - L. N. Sivakumar Konathala
- Refinery Technology Division; CSIR-Indian Institute of Petroleum, Dehradun-; 248005 Uttarakhand India
| | - C. A. Naidu
- Refinery Technology Division; CSIR-Indian Institute of Petroleum, Dehradun-; 248005 Uttarakhand India
| | - Ankur Bordoloi
- Refinery Technology Division; CSIR-Indian Institute of Petroleum, Dehradun-; 248005 Uttarakhand India
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Vu KB, Phung TK. cis-Cyclooctene epoxidation catalyzed by bulk metallophthalocyanines, metallohexadecafluorophthalocyanines and hollow silica-supported metallohexadecafluorophthalocyanine. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Hu X, Martin D, Bertrand G. Room temperature hydroamination of alkynes with anilines catalyzed by anti-Bredt di(amino)carbene gold(i) complexes. NEW J CHEM 2016. [DOI: 10.1039/c6nj00980h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anti-Bredt di(amino)carbene gold(i) complexes are excellent precatalysts for the room temperature hydroamination of terminal alkynes with a variety anilines and hydrazines.
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Affiliation(s)
- Xingbang Hu
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- San DiegoLa Jolla
- USA
| | - David Martin
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- San DiegoLa Jolla
- USA
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555)
- Department of Chemistry and Biochemistry
- University of California
- San DiegoLa Jolla
- USA
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11
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Jia WG, Dai YC, Zhang HN, Lu X, Sheng EH. Synthesis and characterization of gold complexes with pyridine-based SNS ligands and as homogeneous catalysts for reduction of 4-nitrophenol. RSC Adv 2015. [DOI: 10.1039/c5ra01749a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three gold complexes efficiently catalyze 4-nitrophenol reduction to 4-nitroaniline in the presence of NaBH4 under homogeneous conditions in water.
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Affiliation(s)
- Wei-Guo Jia
- College of Chemistry and Materials Science
- Center for Nano Science and Technology
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecular-Based Materials
| | - Yuan-Chen Dai
- College of Chemistry and Materials Science
- Center for Nano Science and Technology
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecular-Based Materials
| | - Hai-Ning Zhang
- College of Chemistry and Materials Science
- Center for Nano Science and Technology
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecular-Based Materials
| | - Xiaojing Lu
- College of Chemistry and Materials Science
- Center for Nano Science and Technology
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecular-Based Materials
| | - En-Hong Sheng
- College of Chemistry and Materials Science
- Center for Nano Science and Technology
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecular-Based Materials
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