101
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Late‐Stage Dehydroxyazidation of Alcohols Promoted by Trifunctional Hypervalent Azido‐Iodine(III) Reagents. Chemistry 2022; 28:e202200272. [DOI: 10.1002/chem.202200272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 11/10/2022]
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102
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Fernández-Canelas P, Barrio P, González JM. Merging gold catalysis and haloethynyl frames: emphasis on halide-shift processes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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103
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Mutra MR, Wang JJ. Photoinduced ynamide structural reshuffling and functionalization. Nat Commun 2022; 13:2345. [PMID: 35487916 PMCID: PMC9055057 DOI: 10.1038/s41467-022-30001-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 04/05/2022] [Indexed: 12/11/2022] Open
Abstract
The radical chemistry of ynamides has recently drawn the attention of synthetic organic chemists to the construction of various N-heterocyclic compounds. Nevertheless, the ynamide-radical chemistry remains a long-standing challenge for chemists due to its high reactivity, undesirable byproducts, severe inherent regio- and chemoselective problems. Importantly, the ynamide C(sp)-N bond fission remains an unsolved challenge. In this paper, we observe Photoinduced radical trigger regio- and chemoselective ynamide bond fission, structural reshuffling and functionalization of 2-alkynyl-ynamides to prepare synthetically inaccessible/challenging chalcogen-substituted indole derivatives with excellent step/atom economy. The key breakthroughs of this work includes, ynamide bond cleavage, divergent radical precursors, broad scope, easy to handle, larger-scale reactions, generation of multiple bonds (N-C(sp2), C(sp2)-C(sp2), C(sp2)-SO2R/C-SR, and C-I/C-Se/C-H) in a few minutes without photocatalysts, metals, oxidants, additives. Control experiments and 13C-labeling experiments supporting the conclusion that sulfone radicals contribute to ynamide structural reshuffling processes via a radical pathway. Although ynamides have emerged as a versatile class of compounds for organic synthesis, the radical chemistry of ynamides usually proceeds with the expected connectivity largely intact. Here the authors show a methodology by which the C(sp)–N bond undergoes scission, alkyne migration and functionalization under blue LED light in the absence of metals or additives.
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Affiliation(s)
- Mohana Reddy Mutra
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan. .,Department of Medical Research, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
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104
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Heckershoff R, Schnitzer T, Diederich T, Eberle L, Krämer P, Rominger F, Rudolph M, Hashmi ASK. Efficient Synthesis of Dipyrrolobenzenes and Dipyrrolopyrazines via Bidirectional Gold Catalysis: a Combined Synthetic and Photophysical Study. J Am Chem Soc 2022; 144:8306-8316. [PMID: 35471963 DOI: 10.1021/jacs.2c02394] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
New N-heterocyclic fluorophores are sought-after compounds for organic electronic devices. Here, we report on a straightforward synthesis to access meta/para-dipyrrolobenzenes and para-dipyrrolopyrazines in high yields using a bidirectional gold-catalyzed cyclization strategy. The versatility of our reaction protocol was showcased by preparing dipyrroloarenes with different substituents, various functional groups, and in a multitude of substitution patterns. Furthermore, we showed that the dipyrroloarenes can be post-modified by N-alkylation to improve the solubility or bromination to yield precursors for further derivatization via cross-coupling. Investigation of the photophysical properties of the─mostly unprecedented─dipyrroloarenes identified strong blue emitters such as the diphenyl meta-dipyrrolobenzene with a quantum yield of 98%. Moreover, we showed that changes in the solvent polarity or interactions with Lewis acids such as borane can be used to fine-tune the photophysical properties of the fluorophores.
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Affiliation(s)
- Robin Heckershoff
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Tobias Schnitzer
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Het Kranenveld, 5600 MB Eindhoven, The Netherlands
| | - Tim Diederich
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lukas Eberle
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Petra Krämer
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut (OCI), Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
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105
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Wang A, Lu M, Xie X, Liu Y. Gold(III) or Gold(I)/Lewis-Acid-Catalyzed Substitution/Cyclization/1,2-Migration Reactions of Propargyl Alcohols with 3-Amino-benzo[ d]isoxazoles: Synthesis of Pyrimidine Derivatives. Org Lett 2022; 24:2944-2949. [DOI: 10.1021/acs.orglett.2c01011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ali Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Mingduo Lu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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106
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Das A, Patil NT. Enantioselective C-H Functionalization Reactions under Gold Catalysis. Chemistry 2022; 28:e202104371. [PMID: 35014732 DOI: 10.1002/chem.202104371] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Indexed: 01/18/2023]
Abstract
Transition metal-catalyzed enantioselective functionalization of ubiquitous C-H bonds has proven to be promising field as it offers the construction of chiral molecular complexity in a step- and atom-economical manner. In recent years, gold has emerged as an attractive contender for catalyzing such reactions. The unique reactivities and selectivities offered by gold catalysts have been exploited to access numerous asymmetric transformations based on gold-catalyzed C-H functionalization processes. Herein, this review critically highlights the major advances and discoveries made in the enantioselective C-H functionalization under gold catalysis which is accompanied by mechanistic insights at appropriate places.
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Affiliation(s)
- Avishek Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462 066, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462 066, India
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107
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Yang X, Li S, Zhu Y, Lan Y. Theoretical study on mechanism of cycloaddition reaction between o-alkynylbenzaldoximes and hexynol catalyzed by silver(I). MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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108
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Brambilla E, Abbiati G, Caselli A, Pirovano V, Rossi E. Coinage metal carbenes in heterocyclic synthesis via formation of new carbon-heteroatom bonds. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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109
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Bao M, Zhou S, Hu W, Xu X. Recent advances in gold-complex and chiral organocatalyst cooperative catalysis for asymmetric alkyne functionalization. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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110
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Wong ZR, Schramm TK, Loipersberger M, Head‐Gordon M, Toste FD. Revisiting the Bonding Model for Gold(I) Species: The Importance of Pauli Repulsion Revealed in a Gold(I)‐Cyclobutadiene Complex. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zeng Rong Wong
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
| | - Tim K. Schramm
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
- Department of Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Matthias Loipersberger
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
| | - Martin Head‐Gordon
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road, MS 70A3307 Berkeley CA 94720 USA
| | - F. Dean Toste
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road, MS 70A3307 Berkeley CA 94720 USA
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111
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Wu Y, Hu C, Wang T, Eberle L, Hashmi ASK. Gold‐Catalyzed Reaction of Anthranils with Alkynyl Sulfones for the Regioselective Formation of 3‐Hydroxyquinolines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101469] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yufeng Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou Guangdong 510006 People's Republic of China
| | - Chao Hu
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Tao Wang
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Lukas Eberle
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science King Abdulaziz University (KAU) 21589 Jeddah Saudi Arabia
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112
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Zhang D, He X, Yang T, Liu S. Insights into the Activation Mode of α-Carbonyl Sulfoxonium Ylides in Rhodium-Catalyzed C-H Activation: A Theoretical Study. Chemistry 2022; 11:e202100254. [PMID: 35212172 PMCID: PMC9278107 DOI: 10.1002/open.202100254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/08/2022] [Indexed: 12/02/2022]
Abstract
A computational study has been performed to investigate the mechanism of RhIII‐catalyzed C−H bond activation using sulfoxonium ylides as a carbene precursor. The stepwise and concerted activation modes for sulfoxonium ylides were investigated. Detailed theoretical results showed that the favored stepwise pathway involves C−H bond activation, carbonization, carbene insertion, and protonation. The free energy profiles for dialkylation of 2‐phenylpyridine were also calculated to account for the low yield of this reaction. Furthermore, the substituent effect was elucidated by comparing the energy barriers for the protonation of meta‐ and para‐substituted sulfoxonium ylides calculated by density functional theory.
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Affiliation(s)
- Dianmin Zhang
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Xiaofang He
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Tao Yang
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Song Liu
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China.,School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, China
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113
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Ren M, Wang YC, Ren S, Huang K, Liu JB, Qiu G. Metal‐Enabled Romance of Nitrene with Alkyne: Beyond Gold Catalysis. ChemCatChem 2022. [DOI: 10.1002/cctc.202200008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Miaofeng Ren
- JiangXi University of Science and Technology Chemistry CHINA
| | - Yu-Chao Wang
- JiangXi University of Science and Technology Chemistry CHINA
| | - Shangfeng Ren
- JiangXi University of Science and Technology Chemistry CHINA
| | - Keke Huang
- JiangXi University of Science and Technology Chemistry CHINA
| | - Jin-Biao Liu
- JiangXi University of Science and Technology faculty of Materials Metallurgy and Chemistry No.86,Hongqi Ave. 341000 Ganzhou CHINA
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114
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Sarmiento JT, Cárcel M, Ramírez de Arellano C, Varea T, Asensio G, Olmos A. Straightforward Synthesis of α-Chloromethylketimines Catalyzed by Gold(I). A Clean Way to Building Blocks. J Org Chem 2022; 87:3114-3122. [PMID: 35191705 PMCID: PMC10391627 DOI: 10.1021/acs.joc.1c02877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
α-Chloromethylketimines have been obtained through a gold-catalyzed hydroamination of aromatic and aliphatic 1-chloroalkynes with aromatic amines by using equimolar amounts of both reagents. This procedure has allowed the preparation and spectroscopic characterization of α-chloromethylketimines for the first time with a high degree of purity, complete conversion, and atom economy. The synthetic usefulness of the methodology has been demonstrated with the preparation of β-chloroamines and indoles.
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Affiliation(s)
- Jeymy T Sarmiento
- Departamento de Química Orgánica, Universidad de Valencia, Av. Vicente Andrés Estellés S/N, 46100 Burjassot, Spain
| | - María Cárcel
- Departamento de Química Orgánica, Universidad de Valencia, Av. Vicente Andrés Estellés S/N, 46100 Burjassot, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica, Universidad de Valencia, Av. Vicente Andrés Estellés S/N, 46100 Burjassot, Spain
| | - Teresa Varea
- Departamento de Química Orgánica, Universidad de Valencia, Av. Vicente Andrés Estellés S/N, 46100 Burjassot, Spain
| | - Gregorio Asensio
- Departamento de Química Orgánica, Universidad de Valencia, Av. Vicente Andrés Estellés S/N, 46100 Burjassot, Spain
| | - Andrea Olmos
- Departamento de Química Orgánica, Universidad de Valencia, Av. Vicente Andrés Estellés S/N, 46100 Burjassot, Spain
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115
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Sun Q, Deng TY, Chen JJ, Liu JY, Lu X, Zhang ZX, Li JH. Insights into the gold(I)-catalyzed intermolecular annulations of alkynes with N-allenamides: a mechanistic DFT study. Dalton Trans 2022; 51:3734-3739. [PMID: 35166737 DOI: 10.1039/d1dt04028f] [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
The mechanism of Au(I)-catalyzed intermolecular annulation of 2-(1-alkynyl)-2-alken-1-one with N-allenamide was carefully elucidated using density functional theory (DFT). The reaction is initiated by the binding of the Au(I) catalyst with 2-(1-alkynyl)-2-alken-1-one rather than with N-allenamide. The key intermediate, a gold all-carbon 1,3-dipole species, is revealed to be more reactive than the gold allylic carbocation. The influence of ligands and substituents was rationally analyzed. We believe that our study will provide deeper mechanistic insights into the chemoselective reactions of alkynes with N-allenamide.
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Affiliation(s)
- Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Tian-Yu Deng
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jia-Jie Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Jia-Yi Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surface & Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi-Xia Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. .,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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116
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Fan Z, Ni SF, Pang JY, Guo LT, Yang H, Li K, Ma C, Liu JK, Wu B, Yang JM. Cu(I)-Catalyzed Cross-Coupling Rearrangements of Terminal Alkynes with Tropylium Tetrafluoroborate: Facile Access to Barbaralyl-Substituted Allenyl Acid Esters and 7-Alkynyl Cycloheptatrienes. J Org Chem 2022; 87:3066-3078. [DOI: 10.1021/acs.joc.1c02849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhe Fan
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, Guangdong, China
| | - Jin-Yu Pang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Li-Ting Guo
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Hao Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Ke Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Cheng Ma
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, Guangdong, China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Bin Wu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Jin-Ming Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
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117
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Hong F, Shi C, Hong P, Zhai T, Zhu X, Lu X, Ye L. Copper‐Catalyzed Asymmetric Diyne Cyclization via [1,2]‐Stevens‐Type Rearrangement for the Synthesis of Chiral Chromeno[3,4‐
c
]pyrroles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Feng‐Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Chong‐Yang Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Pan Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Tong‐Yi Zhai
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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118
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Jie LH, Guo B, Song J, Xu HC. Organoelectrocatalysis Enables Direct Cyclopropanation of Methylene Compounds. J Am Chem Soc 2022; 144:2343-2350. [PMID: 35102740 DOI: 10.1021/jacs.1c12762] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cyclopropane is a prevalent structural unit in natural products and bioactive compounds. While the transition metal-catalyzed alkene cyclopropanation of functionalized compounds such as α-diazocarbonyl derivatives has been well established and provides straightforward access to cyclopropanes, cyclopropanation directly from the more stable and simpler methylene compounds has remained an unsolved challenge despite the highly desirable benefits of minimal prefunctionalization and increased operational safety. Herein we report an electrocatalytic strategy for the cyclopropanation of active methylene compounds, employing an organic catalyst. The method shows a broad substrate scope and excellent scalability, requires no metal catalyst or external chemical oxidant, and provides convenient access to several types of cyclopropane-fused heterocyclic and carbocyclic compounds. Mechanistic investigations suggest that the reactions proceed through a radical-polar crossover process to form the two new carbon-carbon bonds in the nascent cyclopropane ring.
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Affiliation(s)
- Liang-Hua Jie
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen361005, P. R. China
| | - Bin Guo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen361005, P. R. China
| | - Jinshuai Song
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan450001, P. R. China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen361005, P. R. China
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119
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Dhote P, Ramana C. Competing Intra‐ vs Intermolecular Nitrene Transfer in the [Au]‐Catalysed Reaction of 2‐Alkynylphenylazides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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120
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Meng F, Qin X, Li J, Zhang T, Tu S, Jiang B, Hao W. Gold
Self‐Relay
Catalysis Enabling [3,3]‐Sigmatropic Rearrangement/Nazarov Cyclization and Allylic Alkylation Cascade for Constructing
All‐Carbon
Quaternary Stereocenters. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fan‐Tao Meng
- School of Chemistry & Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Xiao‐Yan Qin
- School of Chemistry & Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Jing Li
- School of Chemistry & Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Tian‐Shu Zhang
- School of Materials and Chemical Engineering Xuzhou University of Technology Xuzhou Jiangsu 221018 China
| | - Shu‐Jiang Tu
- School of Chemistry & Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Bo Jiang
- School of Chemistry & Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Wen‐Juan Hao
- School of Chemistry & Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 China
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121
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Wu W, Liang J, Jiang B, Tian X, Li T. Insights into gold-catalyzed formation of aza-heterocycles using benzofuroxans as nitrene transfer reagents: mechanism and origins of chemoselectivity. RSC Adv 2022; 12:27483-27491. [PMID: 36276040 PMCID: PMC9516356 DOI: 10.1039/d2ra05382a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022] Open
Abstract
Density functional theory (DFT) calculations have been performed to reveal the mechanism of gold(i)-catalyzed annulation of N-allylynamides and benzofuroxans as nitrene transfer reagents to construct azaheterocyclic compounds. The calculated results revealed that the reaction mechanism mainly undergoes eight processes. Among the reaction steps, intramolecular nucleophilic attack of the imino N atom on the α-position of activated gold keteniminium is a rate-determining process, which is different from that proposed previously by experiment. The chemoselectivity of the products is controlled by competition between the cyclopropanation of α-imino gold carbenes and intramolecular nucleophilic attack of the phenyl ring on α-imino gold carbenes, and could be explained by NPA charge. The different yields of cyclopropanated product in different solvents are dictated by the relative polarity leading to the different energy barriers of the rate-determining steps. The present work expounds the experimental observation at the molecular level and is informative for exploring efficient syntheses of 3-azabicyclo[3.1.0]hexanes. DFT calculations were employed to study the mechanism and origin of chemoselectivity of gold-catalyzed annulation of N-allylynamides and benzofuroxans as nitrene transfer reagents.![]()
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Affiliation(s)
- Weirong Wu
- School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Jiehui Liang
- School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Biaolin Jiang
- School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Xiaoxuan Tian
- School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Tingzhen Li
- School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing, China
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122
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Wang X, Lv R, Li X. Gold( i)-catalyzed diastereo- and enantioselective [4 + 3] cycloadditions: construction of functionalized furano-benzoxepins. Org Chem Front 2022. [DOI: 10.1039/d2qo01070d] [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
Highly diastereo- and enantioselective [4 + 3] cycloadditions of 2-(1-alkynyl)-2-alken-1-ones with o-QMs have been realized via a simple chiral gold catalysis, providing facile access to various functionalized furano-benzoxepins.
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Affiliation(s)
- Xunhua Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ruifeng Lv
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
- Suzhou Research Institute, Shandong University, Suzhou, Jiangsu 215123, China
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123
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Meng FT, Chen JL, Qin XY, Zhang TS, Tu SJ, Jiang B, Hao WJ. Gold self-relay catalysis for accessing functionalized cyclopentenones bearing an all-carbon quaternary stereocenter. Org Chem Front 2022. [DOI: 10.1039/d1qo01313k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new gold(i) self-relay catalysis consisting of a 3,3-rearrangement, Nazarov cyclization and Michael addition cascade of 1,3-enyne acetates with aurones and their derived azadienes is reported, producing functionalized cyclopentenones.
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Affiliation(s)
- Fan-Tao Meng
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Jing-Long Chen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Xiao-Yan Qin
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Tian-Shu Zhang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
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124
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Weng CY, Zhu GY, Zhu BH, Qian PC, Zhu XQ, Zhou JM, Ye LW. Copper-catalyzed B−H bond insertion reaction of azide-ynamide with borane adducts via α-imino copper carbenes. Org Chem Front 2022. [DOI: 10.1039/d2qo00457g] [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
A new copper-catalyzed B−H bond insertion reaction between azide-ynamides and borane adducts has been developed, which represents the first B−H bond insertion into α-imino metal carbenes. This protocol enables the...
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125
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Nakamura I, Terada M. Gold-Catalyzed Skeletal Rearrangement Reactions of O-Propargylic and O-Homopropargylic Oximes. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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126
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Shi C, Zhou JJ, Hong P, Zhu BH, Hong FL, Qian PC, Sun Q, Lu X, Ye LW. Efficient synthesis of tetracyclic γ-lactams via gold-catalyzed oxidative cyclization of alkenyl diynes. Org Chem Front 2022. [DOI: 10.1039/d2qo00123c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient gold-catalyzed cascade cyclization of alkenyl diynes involving alkyne oxidation, carbene-alkyne metathesis and cyclopropanation has been developed, furnishing a series of tetracyclic γ-lactams bearing one quaternary carbon center and...
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127
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Shcherbakov NV, Titov GD, Chikunova EI, Filippov IP, Rostovskii NV, Kukushkin VY, Dubovtsev AY. Modular approach to non-aromatic and aromatic pyrroles through gold-catalyzed [3 + 2] cycloaddition of 2 H-azirines and ynamides. Org Chem Front 2022. [DOI: 10.1039/d2qo01105k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The developed modular approach to hard-to-reach non-aromatic 3H- and 2H-pyrroles is based on the integration of 2H-azirines and ynamides.
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Affiliation(s)
- Nikolay V. Shcherbakov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Gleb D. Titov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Elena I. Chikunova
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Ilya P. Filippov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Nikolai V. Rostovskii
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
- Laboratory of Crystal Engineering of Functional Materials, South Ural State University, 76, Lenin Av., 454080 Chelyabinsk, Russian Federation
| | - Alexey Yu. Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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128
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Teng MY, Han T, Huang EH, Ye LW. Research Progress on Enantioselective Desymmetrization Reactions Involving Metal Carbenes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202206041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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129
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Liu C, Van Meervelt L, Peshkov VA, Van der Eycken EV. The synthesis of diverse benzazepinoindoles via gold-catalyzed post-Ugi alkyne hydroarylation/Michael addition sequence. Org Chem Front 2022. [DOI: 10.1039/d2qo00810f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
By combining an Ugi-4CR and a gold-catalyzed cascade cyclization, diverse benzazepinoindoles are assembled in a step-economical, chemo- and regioselectivity fashion.
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Affiliation(s)
- Chao Liu
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Vsevolod A. Peshkov
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, P. R. China
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Republic of Kazakhstan
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow, 117198, Russia
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130
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Tahir S, Wunsch JF, Rudolph M, Rominger F, Hashmi ASK. Gold-catalysed synthesis of phosphonate-substituted oxetan-3-ones – an easy access to highly strained HWE reagents. Org Chem Front 2022. [DOI: 10.1039/d1qo01214b] [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
Gold-catalysed reaction of alkynyl phosphonates to attain alkenyl substituted oxetan-3-ones via subsequent HWE reaction.
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Affiliation(s)
- Shaista Tahir
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Jonas F. Wunsch
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
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131
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Chen JJ, Liu JY, Cao XX, Hu JX, Lu X, Shen WB, Sun Q, Song RJ, Li JH. Theoretical insights into the mechanism and origin of chemoselectivity in the catalyst- and directing group-dependent oxidative cyclization of diynes with pyridine N-oxides. Org Chem Front 2022. [DOI: 10.1039/d2qo00996j] [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 mechanisms and origin of the chemoselectivity of Cu(i)- and Au(i)-catalyzed oxidation of diynes for the divergent syntheses of two different N-heterocycles, substituted pyrroles and dihydroindeno[1,2-c]pyrrol-3(2H)-ones, were elucidated using density functional theory.
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Affiliation(s)
- Jia-Jie Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jia-Yi Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xi-Xi Cao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Xin Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surface & Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wen-Bo Shen
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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132
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Huang EH, Zhang YQ, Cui DQ, Zhu XQ, Li X, Ye LW. Copper-Catalyzed Si-H Bond Insertion Reaction of N-Propargyl Ynamides with Hydrosilanes. Org Lett 2021; 24:196-201. [PMID: 34931837 DOI: 10.1021/acs.orglett.1c03830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Transition-metal-catalyzed Si-H bond insertion reactions are generally limited to stabilized diazo compounds. An efficient copper-catalyzed Si-H bond insertion reaction of N-propargyl ynamides with hydrosilanes is described, allowing practical and atom-economic construction of valuable organosilanes in generally moderate to excellent yields under mild reaction conditions. Notably, this reaction constitutes a new method of Si-H bond insertion reaction involving vinyl cations as key intermediates.
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Affiliation(s)
- En-He Huang
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ying-Qi Zhang
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Da-Qiu Cui
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin-Qi Zhu
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiao Li
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.,State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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133
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Wu X, Zhao LP, Xie JM, Fu YM, Zhu CF, Li YG. Access to 3-Sulfonamidoquinolines by Gold-Catalyzed Cyclization of 1-(2'-Azidoaryl)propargylsulfonamides through 1,2- N Migration. J Org Chem 2021; 87:801-812. [PMID: 34928156 DOI: 10.1021/acs.joc.1c02450] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe a gold-catalyzed cyclization of 1-(2'-azidoaryl)propargylsulfonamides for the synthesis of 3-sulfonamidoquinolines, featuring a rare and highly selective 1,2-N migration. The key α-imino gold carbene intermediate is generated through an intramolecular nucleophilic attack of the azide group to the Au-activated triple bonds in a 6-endo-dig manner.
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Affiliation(s)
- Xiang Wu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Li-Ping Zhao
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jin-Ming Xie
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yan-Ming Fu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Cheng-Feng Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - You-Gui Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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134
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Han C, Liu Y, Tian X, Rominger F, Hashmi ASK. Dual Gold/Silver Catalysis: Indolizines from 2-Substituted Pyridine Derivatives via a Tandem C(sp 3)-H Alkynylation/Iminoauration. Org Lett 2021; 23:9480-9484. [PMID: 34874732 DOI: 10.1021/acs.orglett.1c03667] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A dual gold/silver-catalyzed cascade C(sp3)-H alkynylation/iminoauration of 2-substituted pyridines with hypervalent iodine(III) reagents for the synthesis of indolizines is described. This novel reaction involves the formation of an alkynyl Au(III) species, a dual gold/silver-catalyzed C(sp3)-H functionalization, and a subsequent iminoauration process. A number of indolizines bearing diverse functionalities were prepared in good to excellent yield. Furthermore, a gram-scale reaction was efficiently conducted.
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Affiliation(s)
- Chunyu Han
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Yaowen Liu
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Xianhai Tian
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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135
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Shcherbakov NV, Chikunova EI, Dar'in D, Kukushkin VY, Dubovtsev AY. Redox-Neutral and Atom-Economic Route to β-Carbolines via Gold-Catalyzed [4 + 2] Cycloaddition of Indolylynamides and Cyanamides. J Org Chem 2021; 86:17804-17815. [PMID: 34812641 DOI: 10.1021/acs.joc.1c02119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Gold(I)-catalyzed [4 + 2] cycloaddition of indolylynamides and cyanamides (aminonitriles) is an efficient redox-neutral and atom-economic route to diversely substituted 1,3-diamino-β-carbolines. The protocol operates under mild conditions (Ph3PAuNTf2 5 mol %, DCE, 60 °C) with a good tolerance to functional groups (23 examples and yields up to 98%). The obtained β-carboline systems represent a versatile synthetic platform with modifiable substituents for successive functionalizations. Control experiments indicate the crucial role of both the nature of reactants and the identity of employed catalysts in the developed cycloaddition.
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Affiliation(s)
- Nikolay V Shcherbakov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Elena I Chikunova
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry Dar'in
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Alexey Yu Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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136
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Hong FL, Shi CY, Hong P, Zhai TY, Zhu XQ, Lu X, Ye LW. Copper-Catalyzed Asymmetric Diyne Cyclization via [1,2]-Stevens-Type Rearrangement for the Synthesis of Chiral Chromeno[3,4-c]pyrroles. Angew Chem Int Ed Engl 2021; 61:e202115554. [PMID: 34904775 DOI: 10.1002/anie.202115554] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Indexed: 12/21/2022]
Abstract
Here, we report a copper-catalyzed asymmetric cascade cyclization/[1,2]-Stevens-type rearrangement via a non-diazo approach, leading to the practical and atom-economic assembly of various valuable chiral chromeno[3,4-c]pyrroles bearing a quaternary carbon stereocenter in generally moderate to good yields with wide substrate scope and excellent enantioselectivities (up to 99 % ee). Importantly, this protocol not only represents the first example of catalytic asymmetric [1,2]-Stevens-type rearrangement based on alkynes but also constitutes the first asymmetric formal carbene insertion into the Si-O bond.
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Affiliation(s)
- Feng-Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chong-Yang Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Pan Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Tong-Yi Zhai
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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137
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Zhang C, Sun Q, Rudolph M, Rominger F, Hashmi ASK. Gold-Catalyzed Regiodivergent Annulations of Diazo-Alkynes Controlled by Et 3N(HF) 3. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Cheng Zhang
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Qiaoying Sun
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
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138
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Zhu B, Guo W, Sun Q, Qian P, Ye L, Li L. Auxiliary‐Free Remote Dearomatizative Nitrenoid Transfer for Enantioselective Construction of Spirolactams. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bo‐Han Zhu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory for Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 People's Republic of China
| | - Wen‐Ting Guo
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Peng‐Cheng Qian
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory for Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 People's Republic of China
| | - Long Li
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
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139
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Huang L, Yao Z, Huang G, Ao Y, Zhu B, Li S, Cui X. One‐Pot Synthesis of Fused Indolin‐3‐Ones via a [3+3] Cycloaddition Reaction. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100842] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lang Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Zhenyu Yao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Guanghua Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Yaqi Ao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Bin Zhu
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Sanshu Li
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
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140
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Guo J, Chen ZS, Chen WS, Zhao X, Ji K. Gold(I)-Catalyzed Oxidative Amination of β-Amino-ynones to Quaternary Ammonium-olate Salts: The Benefit of a P,N-Bidentate Ligand. Org Lett 2021; 23:8873-8877. [PMID: 34748358 DOI: 10.1021/acs.orglett.1c03382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel P,N-bidentate ligand-assisted gold-catalyzed oxidative amination of β-amino-ynones has been developed, allowing the simple and efficient construction of various quaternary ammonium-olate salts in good to excellent yields. These unprecedented quaternary ammonium-olate salts can be isolated and purified via simple suction filtration. The broad substrate scope, easy purification, easy further transformation, and mild conditions make it a viable alternative for the synthesis of various quaternary ammonium-olate salts.
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Affiliation(s)
- Jing Guo
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Zi-Sheng Chen
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Wen-Shuai Chen
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Xin Zhao
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China.,School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou 014060, P. R. China
| | - Kegong Ji
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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141
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Zheng Y, Zhang TT, Shen WB. Gold-catalyzed oxidative cyclization of amide-alkynes: access to functionalized γ-lactams. Org Biomol Chem 2021; 19:9688-9691. [PMID: 34718364 DOI: 10.1039/d1ob01846a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient gold-catalyzed oxidative cyclization of amide-alkynes is developed. A series of functionalized γ-lactams are easily accessed by employing this strategy. The tandem reaction proceeds through alkyne oxidation, carbene/alkyne metathesis, and donor/donor carbene oxidation.
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Affiliation(s)
- Yi Zheng
- College of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Ting-Ting Zhang
- College of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Wen-Bo Shen
- College of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
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142
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Zhou S, Xie X, Xu X, Dong S, Hu W, Xu X. An asymmetric oxidative cyclization/Mannich-type addition cascade reaction for direct access to chiral pyrrolidin-3-ones. Chem Commun (Camb) 2021; 57:12171-12174. [PMID: 34726687 DOI: 10.1039/d1cc04830a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient gold and chiral phosphoric acid cooperatively catalyzed enantioselective oxidative cyclization/Mannich-type addition reaction of homopropargyl amides with nitrones has been developed, which provides chiral pyrrolidin-3-ones in high yields with excellent enantioselectivities under mild conditions. This reaction employed stable and readily available alkynes as non-diazo carbene precursors, which provides a 100% atom economy method with high bond formation efficiency.
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Affiliation(s)
- Su Zhou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xiongda Xie
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xinxin Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Shanliang Dong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
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143
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Madhavan S, Keshri SK, Kapur M. Transition Metal‐Mediated Functionalization of Isoxazoles: A Review. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100560] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Suchithra Madhavan
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
| | - Santosh Kumar Keshri
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
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144
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Cheng X, Zhang L. Chiral Bifunctional Phosphine Ligand Enables Gold-Catalyzed Asymmetric Isomerization and Cyclization of Propargyl Sulfonamide into Chiral 3-Pyrroline. Org Lett 2021; 23:8194-8198. [PMID: 34637317 DOI: 10.1021/acs.orglett.1c02896] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This work details an asymmetric gold-ligand cooperative catalysis that transforms readily accessible chiral/achiral propargylic sulfonamides into chiral 3-pyrrolines. A bifunctional biphenyl-2-ylphosphine ligand featuring a chiral tetrahydroisoquinoline fragment is essential for the observed metal-ligand cooperation and the asymmetric induction. 2,5-cis-3-Pyrrolines are formed with excellent diastereoselectivities in a "matched" scenario. The "mismatched" scenario by using the ligand enantiomer delivers 2,5-trans-3-pyrrolines with >5/1 diastereoselectivity. The synthetic utilities of this chemistry are demonstrated.
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Affiliation(s)
- Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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145
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Shi CY, Li L, Kang W, Zheng YX, Ye LW. Claisen rearrangement triggered by transition metal-catalyzed alkyne alkoxylation. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214131] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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146
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Davies PW. Gold-Catalyzed Annulations with Nucleophilic Nitrenoids Enabled by Heteroatom-Substituted Alkynes. CHEM REC 2021; 21:3964-3977. [PMID: 34708496 DOI: 10.1002/tcr.202100205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 11/07/2022]
Abstract
The combination of a nucleophilic nitrene equivalent, a triple bond and a π-acid catalyst has underpinned numerous efficient transformations for the preparation of azacycles. This personal account details our efforts in developing an annulation strategy. Adding a nucleophilic nitrenoid to an activated alkyne can generate carbenoid character that is then quenched by a cyclisation onto the nitrenoid substituent. The use and development of N-acyl and N-heterocyclic pyridinium-N-aminides as 1,3-N,O and 1,3-N,N-dipole equivalents is discussed in the context of oxazole and heterocycle-fused imidazole formation, respectively. The resulting processes are highly efficient, practically straightforward, and tolerate considerable structural and functional group variation. Our use of heteroatom-substituted alkynes as enabling tools for reaction discovery is discussed. The reactivity accessed from the strong donor-like properties of ynamides is complemented by that obtained from alkynyl thioethers, which are emerging as interesting substrates for π-acid catalysis.
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Affiliation(s)
- Paul W Davies
- School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
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147
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Liu XJ, Xu Y, Tang C, Qian PC, Ye LW. Unactivated C(sp3)-H functionalization via vinyl cations. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1117-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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148
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Vethacke V, Claus V, Dietl MC, Ehjeij D, Meister A, Huber JF, Paschai Darian LK, Rudolph M, Rominger F, Hashmi ASK. Access to Unsymmetrically Substituted Diaryl Gold N‐Acyclic Carbene (NAC) and N‐Heterocyclic Carbene (NHC) Complexes via the Isonitrile Route. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vanessa Vethacke
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Vanessa Claus
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Martin C. Dietl
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Daniel Ehjeij
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Arne Meister
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jonas F. Huber
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Leon K. Paschai Darian
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
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149
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Coin G, Latour JM. Nitrene transfers mediated by natural and artificial iron enzymes. J Inorg Biochem 2021; 225:111613. [PMID: 34634542 DOI: 10.1016/j.jinorgbio.2021.111613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/30/2021] [Accepted: 09/13/2021] [Indexed: 12/19/2022]
Abstract
Amines are ubiquitous in biology and pharmacy. As a consequence, introducing N functionalities in organic molecules is attracting strong continuous interest. The past decade has witnessed the emergence of very efficient and selective catalytic systems achieving this goal thanks to engineered hemoproteins. In this review, we examine how these enzymes have been engineered focusing rather on the rationale behind it than the methodology employed. These studies are put in perspective with respect to in vitro and in vivo nitrene transfer processes performed by cytochromes P450. An emphasis is put on mechanistic aspects which are confronted to current molecular knowledge of these reactions. Forthcoming developments are delineated.
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Affiliation(s)
- Guillaume Coin
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, DIESE, LCBM, pmb, F-38000 Grenoble, France; Univ. Grenoble Alpes, CNRS UMR 5250, DCM, CIRE, F-38000 Grenoble, France
| | - Jean-Marc Latour
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, DIESE, LCBM, pmb, F-38000 Grenoble, France.
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150
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Allegue D, Santamaría J, Ballesteros A. Gold(I)‐Catalyzed Indole Synthesis through Aza‐Nazarov‐Type Cyclization of α‐Imino Gold Carbene Complexes and Arenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Darío Allegue
- Instituto de Química Organometálica “Enrique Moles” and Departamento de Química Orgánica e Inorgánica Universidad de Oviedo c/Julián Clavería 8 33007 Oviedo Spain
| | - Javier Santamaría
- Instituto de Química Organometálica “Enrique Moles” and Departamento de Química Orgánica e Inorgánica Universidad de Oviedo c/Julián Clavería 8 33007 Oviedo Spain
| | - Alfredo Ballesteros
- Instituto de Química Organometálica “Enrique Moles” and Departamento de Química Orgánica e Inorgánica Universidad de Oviedo c/Julián Clavería 8 33007 Oviedo Spain
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