1
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Tong Z, Smith PJ, Pickford HD, Christensen KE, Anderson EA. Gold-Catalyzed Cyclization of Yndiamides with Isoxazoles via α-Imino Gold Fischer Carbenes. Chemistry 2023; 29:e202302821. [PMID: 37767940 PMCID: PMC10947298 DOI: 10.1002/chem.202302821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 09/29/2023]
Abstract
Gold catalysis is an important method for alkyne functionalization. Here we report the gold-catalyzed formal [3+2] aminative cyclization of yndiamides and isoxazoles in a direct synthesis of polysubstituted diaminopyrroles, which are important motifs in drug discovery. Key to this process is the formation, and subsequent cyclization, of an α-imino gold Fischer carbene, which represents a new type of gold carbene intermediate. The reaction proceeds rapidly under mild conditions, with high regioselectivity being achieved by introducing a subtle steric bias between the nitrogen substituents on the yndiamide. DFT calculations revealed that the key to this regioselectivity was the interconversion of isomeric gold keteniminiun ions via a low-barrier π-complex transition state, which establishes a Curtin-Hammett scenario for isoxazole addition. By using benzisoxazoles as substrates, the reaction outcome could be switched to a formal [5+2] cyclization, leading to 1,4-oxazepines.
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Affiliation(s)
- Zixuan Tong
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Philip J. Smith
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Helena D. Pickford
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Kirsten E. Christensen
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Edward A. Anderson
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
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2
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Singh Chauhan AN, Mali G, Dua G, Samant P, Kumar A, Erande RD. [RhCp*Cl 2] 2-Catalyzed Indole Functionalization: Synthesis of Bioinspired Indole-Fused Polycycles. ACS OMEGA 2023; 8:27894-27919. [PMID: 37576617 PMCID: PMC10413382 DOI: 10.1021/acsomega.3c02510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/11/2023] [Indexed: 08/15/2023]
Abstract
Polycyclic fused indoles are ubiquitous in natural products and pharmaceuticals due to their immense structural diversity and biological inference, making them suitable for charting broader chemical space. Indole-based polycycles continue to be fascinating as well as challenging targets for synthetic fabrication because of their characteristic structural frameworks possessing biologically intriguing compounds of both natural and synthetic origin. As a result, an assortment of new chemical processes and catalytic routes has been established to provide unified access to these skeletons in a very efficient and selective manner. Transition-metal-catalyzed processes, in particular from rhodium(III), are widely used in synthetic endeavors to increase molecular complexity efficiently. In recent years, this has resulted in significant progress in reaching molecular scaffolds with enormous biological activity based on core indole skeletons. Additionally, Rh(III)-catalyzed direct C-H functionalization and benzannulation protocols of indole moieties were one of the most alluring synthetic techniques to generate indole-fused polycyclic molecules efficiently. This review sheds light on recent developments toward synthesizing fused indoles by cascade annulation methods using Rh(III)-[RhCp*Cl2]2-catalyzed pathways, which align with the comprehensive and sophisticated developments in the field of Rh(III)-catalyzed indole functionalization. Here, we looked at a few intriguing cascade-based synthetic designs catalyzed by Rh(III) that produced elaborate frameworks inspired by indole bioactivity. The review also strongly emphasizes mechanistic insights for reaching 1-2, 2-3, and 3-4-fused indole systems, focusing on Rh(III)-catalyzed routes. With an emphasis on synthetic efficiency and product diversity, synthetic methods of chosen polycyclic carbocycles and heterocycles with at least three fused, bridged, or spiro cages are reviewed. The newly created synthesis concepts or toolkits for accessing diazepine, indol-ones, carbazoles, and benzo-indoles, as well as illustrative privileged synthetic techniques, are included in the featured collection.
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Affiliation(s)
| | - Ghanshyam Mali
- Department
of Chemistry, Indian Institute of Technology
Jodhpur, Jodhpur 342037, India
| | - Garima Dua
- Department
of Chemistry, Indian Institute of Technology
Jodhpur, Jodhpur 342037, India
| | - Priya Samant
- Department
of Chemistry, Indian Institute of Technology
Jodhpur, Jodhpur 342037, India
| | - Akhilesh Kumar
- Department
of Chemistry and Nano Science, Ewha Womans
University, Seoul 03760, Korea
| | - Rohan D. Erande
- Department
of Chemistry, Indian Institute of Technology
Jodhpur, Jodhpur 342037, India
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3
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Lenko I, Alayrac C, Bożek I, Witulski B. 1,3-Butadiynamides the Ethynylogous Ynamides: Synthesis, Properties and Applications in Heterocyclic Chemistry. Molecules 2023; 28:molecules28114564. [PMID: 37299038 DOI: 10.3390/molecules28114564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023] Open
Abstract
1,3-butadiynamides-the ethynylogous variants of ynamides-receive considerable attention as precursors of complex molecular scaffolds for organic and heterocyclic chemistry. The synthetic potential of these C4-building blocks reveals itself in sophisticated transition-metal catalyzed annulation reactions and in metal-free or silver-mediated HDDA (Hexa-dehydro-Diels-Alder) cycloadditions. 1,3-Butadiynamides also gain significance as optoelectronic materials and in less explored views on their unique helical twisted frontier molecular orbitals (Hel-FMOs). The present account summarizes different methodologies for the synthesis of 1,3-butadiynamides followed by the description of their molecular structure and electronic properties. Finally, the surprisingly rich chemistry of 1,3-butadiynamides as versatile C4-building blocks in heterocyclic chemistry is reviewed by compiling their exciting reactivity, specificity and opportunities for organic synthesis. Besides chemical transformations and use in synthesis, a focus is set on the mechanistic understanding of the chemistry of 1,3-butadiynamides-suggesting that 1,3-butadiynamides are not just simple alkynes. These ethynylogous variants of ynamides have their own molecular character and chemical reactivity and reflect a new class of remarkably useful compounds.
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Affiliation(s)
- Illia Lenko
- Laboratoire de Chimie Moléculaire et Thio-Organique (LCMT), CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie University, 6 Bd Maréchal Juin, 14050 Caen, France
| | - Carole Alayrac
- Laboratoire de Chimie Moléculaire et Thio-Organique (LCMT), CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie University, 6 Bd Maréchal Juin, 14050 Caen, France
| | - Igor Bożek
- Laboratoire de Chimie Moléculaire et Thio-Organique (LCMT), CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie University, 6 Bd Maréchal Juin, 14050 Caen, France
| | - Bernhard Witulski
- Laboratoire de Chimie Moléculaire et Thio-Organique (LCMT), CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie University, 6 Bd Maréchal Juin, 14050 Caen, France
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4
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Shi CY, Han T, Hong FL, Ye LW, Sun Q, Teng MY. Construction of Spirolactams by Unexpected Oxidative Cyclization of Alkenyl Diynes via Copper Catalysis. Org Lett 2023; 25:1525-1529. [PMID: 36856278 DOI: 10.1021/acs.orglett.3c00319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
A copper-catalyzed oxidative cyclization of alkenyl N-propargyl ynamides is described. This protocol enables the practical synthesis of diverse spirocyclic γ-lactams bearing an exocyclic double bond with generally high Z/E selectivity in moderate to good yields. Importantly, this copper-catalyzed oxidative cyclization demonstrates a distinctive selectivity in comparison with the related gold catalysis.
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Affiliation(s)
- Chong-Yang Shi
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Tao Han
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Feng-Lin Hong
- 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
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.,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
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ming-Yu Teng
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
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5
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Ghosh T, Bhakta S. Advancements in Gold-Catalyzed Cascade Reactions to Access Carbocycles and Heterocycles: An Overview. CHEM REC 2023; 23:e202200225. [PMID: 36543388 DOI: 10.1002/tcr.202200225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/03/2022] [Indexed: 12/24/2022]
Abstract
This review summarizes recent developments (from 2006 to 2022) in numerous important and efficient carbo- and heterocycle generations using gold-catalyzed cascade protocols. Herein, methodologies involve selectivity, cost-effectiveness, and ease of product formation being controlled by the ligand as well as the counter anion, catalyst, substrate, and reaction conditions. Gold-catalyzed cascade reactions covered different strategies through the compilation of various approaches such as cyclization, hydroarylation, intermolecular and intramolecular cascade reactions, etc. This entitled reaction is also useful for the synthesis of spiro, fused, bridged carbo- and heterocycles.
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Affiliation(s)
- T Ghosh
- Department of Chemistry, Jadavpur University, Kolkata, 700 032, West Bengal, India.,Department of Applied Chemistry, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata-741249, Nadia, West Bengal, India
| | - S Bhakta
- Department of Applied Chemistry, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata-741249, Nadia, West Bengal, India
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6
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Kumar S, Kajol K, Nayak P, Kumar A, Ramesh C. Synthesis of tetracyclic 4H-benzo[5,6]chromeno[3,4-d]oxazoles via palladium-catalyzed intramolecular direct heteroarylation. Chem Asian J 2023; 18:e202201151. [PMID: 36519340 DOI: 10.1002/asia.202201151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
We report a palladium-catalyzed intramolecular direct heteroarylation of oxazole tethered β-naphthols to access corresponding tetracyclic 4H-benzo[5,6]chromeno[3,4-d]oxazoles. Various functional groups are well tolerated and furnished the desired products in good to excellent yields under the present reaction conditions. The scale-up reaction and synthetic utility of the resulting molecules have been demonstrated. Moreover, UV/vis absorption and fluorescence emission properties have been evaluated for these polyheterocyclic compounds.
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Affiliation(s)
- Sujeet Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Km Kajol
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India
| | - Prakash Nayak
- School of Chemical Sciences National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar, 752050, Odisha, India
| | - Amit Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Chintakunta Ramesh
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110001, India
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7
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Erande RD, Shivam S, Chavan KA, Chauhan ANS. Recent Advances in [3+2]-Cycloaddition-Enabled
Cascade Reactions: Application to
Synthesize Complex Organic Frameworks. Synlett 2022. [DOI: 10.1055/s-0042-1751369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AbstractMany natural products and biologically important complex organic scaffolds have convoluted structures around their core skeleton. Interestingly, with just changing the outskirts, the core reflects new and unique degrees of various physical and chemical properties. A very common but intriguing core is a five-membered ring horning heaps of organic molecules crafts. The power of [3+2] cycloaddition reactions to generate five-membered ring systems allocate chemists to envision synthetic procedures of wonder molecules and if it is facilitating a cascade sequence, then the end product will imbibe significant level of complexity having applications in medicinal and pharmaceutical fields. This Account highlights the broad interest in assembling recent advances in cascade reactions involving [3+2] cycloaddition as the power tool in order to conceive breakthrough organic architectures reported in the last ten years. We foresee that our comprehensive collection of astonishing [3+2] cycloaddition enabled cascades will provide valuable insights to polycyclic molecular construction and perseverant approach towards nonconventional synthetic procedures to the organic community.1 Introduction2 Synthesis of Oxindoles Skeleton3 Synthesis of Oxazoles Skeleton4 Synthesis of Oxadiazoles Skeleton5 Synthesis of Nitrogen-Containing Heterocycles6 Synthesis via Formal [3+2] Cycloaddition7 Synthesis of Miscellaneous Scaffolds8 Conclusion
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8
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Xia J, Liu J, Yu Y, Zhang J, Huang X. Divergent Access to Polycyclic N-Heterocyclic Compounds through Büchner-Type Dearomatization Enabled Cycloisomerization of Diynamides under Gold Catalysis. Org Lett 2022; 24:4298-4303. [PMID: 35666892 DOI: 10.1021/acs.orglett.2c01807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Catalytic dearomatization has been considered as a valuable approach to convert readily accessible flat molecules to products with three-dimensional frameworks. Herein, an unprecedented gold-catalyzed oxidative Büchner-type cyclopropanation is described that enables the cycloisomerization of diynamides. By variation of the position of substituents on the phenyl ring, a variety of fused N-heterocyclic products with challenging structural skeletons were obtained divergently.
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Affiliation(s)
- Jiajin Xia
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fujian 350025, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jibing Liu
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fujian 350025, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinghua Yu
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fujian 350025, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Fujian College, Chinese Academy of Sciences, Fujian 350025, China
| | - Xueliang Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education of China, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
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9
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Rakshit A, Dhara HN, Sahoo AK, Alam T, Patel BK. Pd(II)-Catalyzed Synthesis of Furo[2,3- b]pyridines from β-Ketodinitriles and Alkynes via Cyclization and N-H/C Annulation. Org Lett 2022; 24:3741-3746. [PMID: 35584095 DOI: 10.1021/acs.orglett.2c01472] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A Pd(II)-catalyzed synthesis of furopyridines has been developed from β-ketodinitriles and alkynes via an unusual N-H/C annulation. The participation of both the nitrile groups and the concurrent construction of furan and pyridine rings through the formation of C-C, C═C, C-O, C-N, and C═N bonds are the important features. The synthetic applicability is further demonstrated through a series of postsynthetic alterations.
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Affiliation(s)
- Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Hirendra Nath Dhara
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Ashish Kumar Sahoo
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
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10
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Kumar G, Nagpure M, Rao VK, Guchhait SK. Synthesis of heterocyclic‐fused furans and dihydrofurans via a (4+1)‐annulation with ylide: Exploration of unique reactivity behavior of α‐carbonyl sulfoxonium ylide. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gulshan Kumar
- National Institute of Pharmaceutical Education and Research Department of Medicinal Chemistry Sector 67SAS Nagar 160062 Mohali INDIA
| | - Mithilesh Nagpure
- National Institute of Pharmaceutical Education and Research Department of Medicinal Chemistry Sector 67SAS Nagar 160062 Mohali INDIA
| | - Vajja Krishna Rao
- National Institute of Pharmaceutical Education and Research Department of Medicinal Chemistry Sector 67SAS Nagar 160062 Mohali INDIA
| | - Sankar Kumar Guchhait
- National Institute of Pharmaceutical Education and Research Department of Medicinal Chemistry Phase X, Sector 67 160062 S. A. S. Nagar Mohali INDIA
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11
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Wan Q, Xin L, Zhang J, Huang X. Efficient access to 1,3,4-trisubstituted pyrroles via gold-catalysed cycloisomerization of 1,5-diynes. Org Biomol Chem 2022; 20:1647-1651. [PMID: 35137761 DOI: 10.1039/d1ob02393d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A gold-catalysed cycloisomerization of 1,5-diynes is described, which offers a selective approach to access 1,3,4-trisubstituted pyrroles. In this reaction, the cationic gold catalyst activates the ynamide moiety, initiating the cycloisomerization to produce the pyrrole core, and H2O acts as an external nucleophile to trap the vinyl cationic species, thus leading to the formation of 1,3,4-trisubstituted pyrroles with high selectivity.
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Affiliation(s)
- Qiuling Wan
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Luoting Xin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Xueliang Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education of China, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China.
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12
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Quintavalla A, Veronesi R, Speziali L, Martinelli A, Zaccheroni N, Mummolo L, Lombardo M. Allenamides Playing Domino: A Redox‐Neutral Photocatalytic Synthesis of Functionalized 2‐Aminofurans. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Arianna Quintavalla
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Ruben Veronesi
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Laura Speziali
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Ada Martinelli
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Nelsi Zaccheroni
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Liviana Mummolo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Marco Lombardo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
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13
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Reissig HU, Taszarek M. Synthesis of New Multivalent Furo[3,2-c]pyridine and Bifuro[3,2-c]pyridine Derivatives. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14737] [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: 11/06/2022]
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14
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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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15
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Liu N, Sun H, Wang J, Zhang Z, Wang T. Ag(I)‐Catalyzed Synthesis of 2‐Aminoquinolines from 1‐Aminobutadiynes and Anilines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ningning Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Junying Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Zunting Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Tao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
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16
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Shandilya S, Protim Gogoi M, Dutta S, Sahoo AK. Gold-Catalyzed Transformation of Ynamides. CHEM REC 2021; 21:4123-4149. [PMID: 34432929 DOI: 10.1002/tcr.202100159] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/27/2021] [Indexed: 11/07/2022]
Abstract
Ynamide, a unique species with inherited polarization of nitrogen lone pair electron to triple bond, has been largely used for the developement of novel synthetic methods and the construction of unusual N-bearing heterocycles. The reaction versatility of ynamide on umpolung reactivity, radical reactions and asymmetric synthesis have been recently reviewed. This review provides an overall scenic view into the gold catalyzed transformation of ynamides. The ynamides reactivity towards nitrogen-transfer reagents, such as azides, nitrogen ylides, isoxazoles, and anthranils; oxygen atom-transfer reagents, like nitrones, sulfoxides, and pyridine N-oxides; and carbon nucleophiles under gold catalysis are herein uncovered. The scope as well the mechanistic insights of each reaction is also briefed.
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Affiliation(s)
| | | | - Shubham Dutta
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, India
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, India
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17
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Tong Z, Garry OL, Smith PJ, Jiang Y, Mansfield SJ, Anderson EA. Au(I)-Catalyzed Oxidative Functionalization of Yndiamides. Org Lett 2021; 23:4888-4892. [DOI: 10.1021/acs.orglett.1c01625] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zixuan Tong
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Olivia L. Garry
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Philip J. Smith
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
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Ju CW, Bai H, Li B, Liu R. Machine Learning Enables Highly Accurate Predictions of Photophysical Properties of Organic Fluorescent Materials: Emission Wavelengths and Quantum Yields. J Chem Inf Model 2021; 61:1053-1065. [PMID: 33620207 DOI: 10.1021/acs.jcim.0c01203] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of functional organic fluorescent materials calls for fast and accurate predictions of photophysical parameters for processes such as high-throughput virtual screening, while the task is challenged by the limitations of quantum mechanical calculations. We establish a database covering >4300 solvated organic fluorescent dyes with 3000 distinct compounds and develop a new machine learning approach aimed at efficient and accurate predictions of emission wavelength and photoluminescence quantum yield (PLQY). Our feature engineering has given rise to a functionalized structure descriptor (FSD) and a comprehensive general solvent descriptor (CGSD), whereby a highly black-box computational framework is realized with consistently good accuracy across different dye families, ability of describing substitution effects and solvent effects, efficiency for large-scale predictions, and workability with on-the-fly learning. Evaluations with unseen molecules suggest a remarkable mean absolute error of 0.13 for PLQY and 0.080 eV for emission energy, the latter comparable to time-dependent density functional theory (TD-DFT) calculations. An online prediction platform was constructed based on the ensemble model to make predictions in various solvents. Our statistical learning methodology will complement quantum mechanical calculations as an efficient alternative approach for the prediction of these parameters.
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Affiliation(s)
- Cheng-Wei Ju
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hanzhi Bai
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bo Li
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Rizhang Liu
- College of Software Engineering, Sichuan University, Chengdu, Sichuan 610064, China
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Zheng Z, Ma X, Cheng X, Zhao K, Gutman K, Li T, Zhang L. Homogeneous Gold-Catalyzed Oxidation Reactions. Chem Rev 2021; 121:8979-9038. [DOI: 10.1021/acs.chemrev.0c00774] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhitong Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xu Ma
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ke Zhao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Kaylaa Gutman
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Tianyou Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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Xin L, Wan W, Yu Y, Wan Q, Ma L, Huang X. Construction of Protoberberine Alkaloid Core through Palladium Carbene Bridging C–H Bond Functionalization and Pyridine Dearomatization. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05156] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Luoting Xin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Wan Wan
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yinghua Yu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Qiuling Wan
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Liyao Ma
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Xueliang Huang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education of China, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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