1
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Alexeev MS, Strelkova TV, Ilyin MM, Nelyubina YV, Bespalov IA, Medvedev MG, Khrustalev VN, Kuznetsov NY. Amine adducts of triallylborane as highly reactive allylborating agents for Cu(I)-catalyzed allylation of chiral sulfinylimines. Org Biomol Chem 2024; 22:4680-4696. [PMID: 38716901 DOI: 10.1039/d4ob00291a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The implementation of selective catalytic processes with highly active reagents is an attractive strategy that meets the modern principles of sustainable development of chemistry. In the current study, we for the first time describe the method and general principles of Cu(I)-catalyzed allylation of imines with amine adducts of allylic triorganoboranes. Triallylborane is an extremely reactive compound and cannot be used for the catalytic allylation of imines, whereas its amine adducts are ideal substrates for catalysis. The structure of the amine fragment successfully balances the safety, selectivity and stability of the allylboron reagent, allowing it to demonstrate high activity in catalytic allylation reactions, exceeding many times any known allylboranes. The obtained results are supported by quantitative kinetics data and DFT calculations. The catalytic efficacy of the system was demonstrated on model sulfinylimines (23 examples). High diastereoselectivity up to >99% was achieved, including for the gram-scale synthesis of 2-hydroxyphenyl-derivatives. Taking into account the high reactivity and unsurpassed atom-economy of amine adducts of triallylborane (AAT), they can be considered as prospective allylation reagents with Cu(I) and other appropriate metallocatalysts.
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Affiliation(s)
- Michael S Alexeev
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
| | - Tatiana V Strelkova
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Michael M Ilyin
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Yulia V Nelyubina
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Ivan A Bespalov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
- Lomonosov Moscow State University, Leninskie Gory 1 (3), Moscow, 119991, Russian Federation
| | - Michael G Medvedev
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
| | - Victor N Khrustalev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
- Peoples Friendship University of Russia, Miklukho-Maklay st. 6, 117198 Moscow, Russian Federation
| | - Nikolai Yu Kuznetsov
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
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2
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Ghosh M, Sahu S, Saha S, Maji MS. Construction of C2-indolyl-quaternary centers by branch-selective allylation: enabling concise total synthesis of the (±)-mersicarpine alkaloid. Chem Sci 2024; 15:1789-1795. [PMID: 38303951 PMCID: PMC10829033 DOI: 10.1039/d3sc04732f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/16/2023] [Indexed: 02/03/2024] Open
Abstract
Herein we report a branch-selective allylation strategy for accessing C2-indolyl-all-carbon quaternary centers using allylboronic acids. This approach boasts broad functional group tolerance, scalability, and relies on easily accessible allyl alcohol precursors. Importantly, the C3-position of the indole remains free, offering a handle for further synthetic refinement. Mechanistic pathways, corroborated by density functional theory (DFT), suggest the involvement of an indolenine intermediate and a Zimmerman-Traxler-like transition state during allylboration. Demonstrating its efficacy, the method was applied to the total synthesis of the (±)-mersicarpine alkaloid and enabled formal synthesis of additional alkaloids, such as (±)-scholarisine G, (±)-melodinine E, and (±)-leuconoxine.
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Affiliation(s)
- Minakshi Ghosh
- Department of Chemistry, Indian Institute of Technology Kharagpur Kharagpur 721302 WB India
| | - Samrat Sahu
- Department of Chemistry, Indian Institute of Technology Kharagpur Kharagpur 721302 WB India
| | - Shuvendu Saha
- Department of Chemistry, Indian Institute of Technology Kharagpur Kharagpur 721302 WB India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur Kharagpur 721302 WB India
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3
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Mikhael M, Alektiar SN, Yeung CS, Wickens ZK. Translating Planar Heterocycles into Three-Dimensional Analogs by Photoinduced Hydrocarboxylation. Angew Chem Int Ed Engl 2023; 62:e202303264. [PMID: 37199340 PMCID: PMC10524292 DOI: 10.1002/anie.202303264] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/19/2023]
Abstract
The rapid preparation of complex three-dimensional (3D) heterocyclic scaffolds is a key challenge in modern medicinal chemistry. Despite the increased probability of clinical success for small molecule therapeutic candidates with increased 3D complexity, new drug targets remain dominated by flat molecules due to the abundance of coupling reactions available for their construction. In principle, heteroarene hydrofunctionalization reactions offer an opportunity to transform readily accessible planar molecules into more three-dimensionally complex analogs through the introduction of a single molecular vector. Unfortunately, dearomative hydrofunctionalization reactions remain limited. Herein, we report a new strategy to enable the dearomative hydrocarboxylation of indoles and related heterocycles. This reaction represents a rare example of a heteroarene hydrofunctionalization that meets the numerous requirements for broad implementation in drug discovery. The transformation is highly chemoselective, broad in scope, operationally simple, and readily amenable to high-throughput experimentation (HTE). Accordingly, this process will allow existing libraries of heteroaromatic compounds to be translated into diverse 3D analogs and enable exploration of new classes of medicinally relevant molecules.
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Affiliation(s)
- Myriam Mikhael
- Discovery Chemistry, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, MA 02115, United States
| | - Sara N. Alektiar
- Department of Chemistry, University of Wisconsin-Madison; Madison, Wisconsin, 53706, United States
| | - Charles S. Yeung
- Discovery Chemistry, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, MA 02115, United States
| | - Zachary K. Wickens
- Department of Chemistry, University of Wisconsin-Madison; Madison, Wisconsin, 53706, United States
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4
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Wang Z, Yin L, Wang M, Zhu Y, Yang Y, Cheng L, Wang C, Li Y. Selective C-O Bond Forming Reactions at Indole-C2-Position toward Polycyclic Indolone or Indolinone Derivatives Tethered with Medium-Sized Rings. Org Lett 2022; 24:6272-6276. [PMID: 35980745 DOI: 10.1021/acs.orglett.2c02398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A methodology involving the chemoselective synthesis of tetracyclic [1,3]oxazino[3,2-a]indol-4-one or tetracyclic [1,3]oxazino[3,2-a]indoline-4-one tethered with a medium-sized ring by cross dehydrogenative coupling (CDC) or nucleophilic addition (NA) reaction has been developed. [1,3]Oxazino[3,2-a]indol-4-one compounds fused with a medium-sized ring were constructed through a CDC reaction in the presence of I2 and K2CO3. Whereas, [1,3]oxazino[3,2-a]indoline-4-ones tethered with a medium-sized ring were obtained with a TfOH system by NA reaction.
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Affiliation(s)
- Zongkang Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Liqiang Yin
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Mengdan Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yilin Zhu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yajie Yang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Lu Cheng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Chengyu Wang
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.,Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200062, China
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5
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Sabat N, Zhou W, Gandon V, Guinchard X, Vincent G. Unbiased C3‐Electrophilic Indoles: Triflic Acid Mediated C3‐Regioselective Hydroarylation of N−H Indoles**. Angew Chem Int Ed Engl 2022; 61:e202204400. [PMID: 35570713 PMCID: PMC9401073 DOI: 10.1002/anie.202204400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Indexed: 11/24/2022]
Abstract
The direct dearomative addition of arenes to the C3 position of unprotected indoles is reported under operationally simple conditions, using triflic acid at room temperature. The present regioselective hydroarylation is a straightforward manner to generate an electrophilic indole at the C3 position from unbiased indoles in sharp contrast to previous strategies. This atom‐economical method delivers biologically relevant 3‐arylindolines and 3,3‐spiroindolines in high yields and regioselectivities from both intra‐ and intermolecular processes. DFT computations suggest the stabilization of cationic or dicationic intermediates with H‐bonded (TfOH)n clusters.
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Affiliation(s)
- Nazarii Sabat
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
- Institut de Chimie des Substances Naturelles (ICSN), UPR 2301 Université Paris-Saclay, CNRS 91198 Gif-sur-Yvette France
| | - Weiping Zhou
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
- Institut de Chimie des Substances Naturelles (ICSN), UPR 2301 Université Paris-Saclay, CNRS 91198 Gif-sur-Yvette France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
- Laboratoire de Chimie Moléculaire (LCM), UMR 9168 Ecole Polytechnique Institut Polytechnique de Paris, CNRS 91128 Palaiseau France
| | - Xavier Guinchard
- Institut de Chimie des Substances Naturelles (ICSN), UPR 2301 Université Paris-Saclay, CNRS 91198 Gif-sur-Yvette France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
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6
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Sabat N, Zhou W, Gandon V, Guinchard X, Vincent G. Unbiased C3‐Electrophilic Indoles: Triflic Acid Mediated C3‐Regioselective Hydroarylation of N−H Indoles**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204400] [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)
- Nazarii Sabat
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
- Institut de Chimie des Substances Naturelles (ICSN), UPR 2301 Université Paris-Saclay, CNRS 91198 Gif-sur-Yvette France
| | - Weiping Zhou
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
- Institut de Chimie des Substances Naturelles (ICSN), UPR 2301 Université Paris-Saclay, CNRS 91198 Gif-sur-Yvette France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
- Laboratoire de Chimie Moléculaire (LCM), UMR 9168 Ecole Polytechnique Institut Polytechnique de Paris, CNRS 91128 Palaiseau France
| | - Xavier Guinchard
- Institut de Chimie des Substances Naturelles (ICSN), UPR 2301 Université Paris-Saclay, CNRS 91198 Gif-sur-Yvette France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182 Université Paris-Saclay, CNRS 91405 Orsay France
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7
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Hu YC, Min XT, Ji DW, Chen QA. Catalytic prenylation and reverse prenylation of aromatics. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Zhang J, Xia W, Qu M, Huda S, Ward JS, Rissanen K, Albrecht M. Synthesis of Polycyclic Indolines by Utilizing a Reduction/Cyclization Cascade Reaction. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jingyu Zhang
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 Aachen 52074 Germany
| | - Wei Xia
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 Aachen 52074 Germany
| | - Meilin Qu
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 Aachen 52074 Germany
| | - Saskia Huda
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 Aachen 52074 Germany
| | - Jas S. Ward
- University of Jyvaskyla Department of Chemistry P.O. Box 35 Jyväskylä Finland
| | - Kari Rissanen
- University of Jyvaskyla Department of Chemistry P.O. Box 35 Jyväskylä Finland
| | - Markus Albrecht
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 Aachen 52074 Germany
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9
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Ma J, Luo J, Jiang K, Zhang G, Liu S, Yin B. Access to Polycyclic Thienoindolines via Formal [2+2+1] Cyclization of Alkynyl Indoles with S 8 and K 2S. Org Lett 2021; 23:8033-8038. [PMID: 34617760 DOI: 10.1021/acs.orglett.1c03035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The syntheses of polycyclic thienoindolines bearing a dihydrothiophene or tetrahydrothiophene subunit have not been reported, despite the fact that such compounds may have interesting medicinal properties. Herein, we report a protocol for accessing polycyclic dihydrothiophenes by means of formal [2+2+1] intramolecular dearomatizing cyclization of alkynyl indoles with K2S and S8 as the sources of sulfide. In addition, tetrahydrothienoindolines were stereoselectively synthesized via a one-pot, two-step protocol involving AgNO3-catalyzed alkenyl dearomatization followed by two nucleophilic addition reactions involving K2S.
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Affiliation(s)
- Jinhui Ma
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
| | - Jiajun Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kai Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guangwen Zhang
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
| | - Shubin Liu
- Research Computing Center, The University of North Carolina, Chapel Hill, North Carolina 27599-3420, United States
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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10
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Fang Y, Hu X, Luo Y, Shi Z, Zhao X, Gopireddy RR. Iron-Catalyzed Stereoselective Allylboration of 3,4-Dihydroisoquinolines with Potassium Allyltrifluoroborates. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1493-6420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractAn iron-catalyzed allyation of isoquinoline with potassium allyltrifluoroborate is described. The operation of this reaction is very simple and highly practical. The diastereoisomer having two adjacent chiral centers were obtained in single anti-configuration.
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Affiliation(s)
- Yong Fang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology
| | - Xiaoling Hu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology
| | - Yunfei Luo
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology
| | - Zhuangzhuang Shi
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology
| | - Xu Zhao
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology
| | - Raveendra Reddy Gopireddy
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology
- School of Material Science and Engineering, Hefei University of Technology
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11
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Miura H, Hachiya Y, Nishio H, Fukuta Y, Toyomasu T, Kobayashi K, Masaki Y, Shishido T. Practical Synthesis of Allyl, Allenyl, and Benzyl Boronates through S N1′-Type Borylation under Heterogeneous Gold Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c03771] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
| | - Yuka Hachiya
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hidenori Nishio
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yohei Fukuta
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tomoya Toyomasu
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Kosa Kobayashi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yosuke Masaki
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
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12
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Jonker SJT, Jayarajan R, Kireilis T, Deliaval M, Eriksson L, Szabó KJ. Organocatalytic Synthesis of α-Trifluoromethyl Allylboronic Acids by Enantioselective 1,2-Borotropic Migration. J Am Chem Soc 2020; 142:21254-21259. [PMID: 33270462 PMCID: PMC7760092 DOI: 10.1021/jacs.0c09923] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
Chiral α-substituted allylboronic
acids were synthesized
by asymmetric homologation of alkenylboronic acids using CF3/TMS-diazomethanes in the presence of BINOL catalyst and ethanol.
The chiral α-substituted allylboronic acids were reacted with
aldehydes or oxidized to alcohols in situ with a high degree of chirality
transfer. The oxygen-sensitive allylboronic acids can be purified
via their isolated diaminonaphthalene (DanH)-protected derivatives.
The highly reactive purified allylboronic acids reacted in a self-catalyzed
reaction at room temperature with ketones, imines, and indoles to
give congested trifluoromethylated homoallylic alcohols/amines with
up to three contiguous stereocenters.
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Affiliation(s)
- Sybrand J T Jonker
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ramasamy Jayarajan
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Tautvydas Kireilis
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Marie Deliaval
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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13
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Zhang J, Li J, Ward JS, Truong KN, Rissanen K, Albrecht M. Iron(III) Chloride as a Mild Catalyst for the Dearomatizing Cyclization of N-Acylindoles. J Org Chem 2020; 85:12160-12174. [PMID: 32856915 DOI: 10.1021/acs.joc.0c01373] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A catalytic approach for the preparation of indolines by dearomatizing cyclization is presented. FeCl3 acts as a catalyst to afford tetracyclic 5a,6-dihydro-12H-indolo[2,1-b][1,3]benzoxazin-12-ones in good yields. The cyclization also proceeds with tosylamides forming C-N bonds in 53% yield.
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Affiliation(s)
- Jingyu Zhang
- Institut für Organische Chemie, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Jing Li
- Institut für Organische Chemie, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Jas S Ward
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, FIN-40014 Jyväskylä, Finland
| | - Khai-Nghi Truong
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, FIN-40014 Jyväskylä, Finland
| | - Kari Rissanen
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, FIN-40014 Jyväskylä, Finland
| | - Markus Albrecht
- Institut für Organische Chemie, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
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14
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Yuan Y, Wang Y, Mu Y, Xu M, Fu S, Kong L, Li Y. Synthesis of Aza-Eight-Membered Ring-Fused Indolines Initiated by Zn-Catalyzed C2 Alkylation of Indoles and Subsequent Base-Promoted Ring Expansion. Org Lett 2020; 22:6532-6536. [PMID: 32806175 DOI: 10.1021/acs.orglett.0c02307] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A novel and efficient synthesis of aza-eight-membered ring-fused indolines has been developed. This process is realized by zinc-catalyzed C2 alkylation of indoles and subsequent base-promoted ring expansion of the newly formed six-membered ring with alkynes. Easily accessible starting materials, good functional group tolerance, and high atom economy make this procedure attractive.
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Affiliation(s)
- Yang Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Murong Xu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Siyi Fu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lingkai Kong
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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15
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Gao B, Xu S, Du T, Li Y. Transition‐Metal‐Free Catalyzed Dearomatizative Esterification of Indole. ChemistrySelect 2020. [DOI: 10.1002/slct.201904715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bao Gao
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
| | - Shasha Xu
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
| | - Tianri Du
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
| | - Yahui Li
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
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16
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Ullrich P, Schmauck J, Brauns M, Mantel M, Breugst M, Pietruszka J. Enantioselective Allylation of Indoles: A Surprising Diastereoselectivity. J Org Chem 2020; 85:1894-1905. [PMID: 31905290 DOI: 10.1021/acs.joc.9b02573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein we show a novel approach toward the allylation of indoles. Thereby, we explore a class of bench-stable allylboronates and fine-tune their reactivity. The allylations of different substituted indoles proceed with negligible diastereo- and excellent enantioselectivities. This surprising selectivity (up to 99:1 er, up to ≈60:40 dr) is rationalized by DFT calculations.
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Affiliation(s)
- Patrick Ullrich
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany
| | - Julie Schmauck
- Department für Chemie , Universität zu Köln , Greinstraße 4 , 50939 Köln , Germany
| | - Marcus Brauns
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany
| | - Marvin Mantel
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany
| | - Martin Breugst
- Department für Chemie , Universität zu Köln , Greinstraße 4 , 50939 Köln , Germany
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany.,Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) , Forschungszentrum Jülich , 52428 Jülich , Germany
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17
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Recent Advances on the C2-Functionalization of Indole via Umpolung. Top Curr Chem (Cham) 2020; 378:22. [DOI: 10.1007/s41061-020-0287-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 01/28/2020] [Indexed: 01/23/2023]
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18
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Saya JM, van Wordragen EDH, Orru RVA, Ruijter E. Mild and Practical Indole C2 Allylation by Allylboration of in situ Generated 3-Chloroindolenines. European J Org Chem 2019; 2019:5156-5160. [PMID: 31894179 PMCID: PMC6919337 DOI: 10.1002/ejoc.201801745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Indexed: 01/04/2023]
Abstract
C2 allylation of indole derivatives is a challenging but important transformation given the biological relevance of the products. Herein we report a selective C2 allylation strategy that proceeds via allylboration of in situ-generated 3-chloroindolenines. The reaction is mild, practical, and compatible with a wide range of C3-substituted indoles. As allylboronates are readily accessible from commercial precursors, various substituted allyl moieties can be introduced using the same protocol. To showcase the utility of this method we applied it to the synthesis of the natural product, tryprostatin B.
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Affiliation(s)
- Jordy M. Saya
- Department of Chemistry & Pharmaceutical SciencesAmsterdam Institute for MoleculesMedicines & SystemsVrije Universiteit AmsterdamDe Boelelaan 11081081 HZAmsterdamthe Netherlands
| | - Ellen D. H. van Wordragen
- Department of Chemistry & Pharmaceutical SciencesAmsterdam Institute for MoleculesMedicines & SystemsVrije Universiteit AmsterdamDe Boelelaan 11081081 HZAmsterdamthe Netherlands
| | - Romano V. A. Orru
- Department of Chemistry & Pharmaceutical SciencesAmsterdam Institute for MoleculesMedicines & SystemsVrije Universiteit AmsterdamDe Boelelaan 11081081 HZAmsterdamthe Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical SciencesAmsterdam Institute for MoleculesMedicines & SystemsVrije Universiteit AmsterdamDe Boelelaan 11081081 HZAmsterdamthe Netherlands
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19
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Deka B, Baruah PK, Deb ML. Multi-component synthesis of 3-substituted indoles and their cyclisation to α-carbolines via I 2-promoted intramolecular C2 oxidative amination/aromatisation at room temperature. Org Biomol Chem 2018; 16:7806-7810. [PMID: 30328453 DOI: 10.1039/c8ob02362j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Condensation of indoles, aldehydes and pyrazol-5-amine in the presence of ceric ammonium nitrate gives 3-substituted indoles. These then cyclise to α-carbolines at room temperature through I2-promoted intramolecular C2 amination and aromatisation in open air. A plausible mechanism is proposed based on some controlled experiments.
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Affiliation(s)
- Bhaskar Deka
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati-781014, Assam, India.
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20
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Ciccolini C, Mari M, Lucarini S, Mantellini F, Piersanti G, Favi G. Polycyclic Indolines by an Acid‐Mediated Intramolecular Dearomative Strategy: Reversing Indole Reactivity in the Pictet‐Spengler‐Type Reaction. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800981] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Cecilia Ciccolini
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural CompoundsUniversity of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino Italy
| | - Michele Mari
- Department of Biomolecular Sciences, Section of ChemistryUniversity of Urbino “Carlo Bo” Piazza Rinascimento 6 61029 Urbino Italy
| | - Simone Lucarini
- Department of Biomolecular Sciences, Section of ChemistryUniversity of Urbino “Carlo Bo” Piazza Rinascimento 6 61029 Urbino Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural CompoundsUniversity of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino Italy
| | - Giovanni Piersanti
- Department of Biomolecular Sciences, Section of ChemistryUniversity of Urbino “Carlo Bo” Piazza Rinascimento 6 61029 Urbino Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural CompoundsUniversity of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino Italy
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21
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Zhao J, Jonker SJT, Meyer DN, Schulz G, Tran CD, Eriksson L, Szabó KJ. Copper-catalyzed synthesis of allenylboronic acids. Access to sterically encumbered homopropargylic alcohols and amines by propargylboration. Chem Sci 2018; 9:3305-3312. [PMID: 29732108 PMCID: PMC5915797 DOI: 10.1039/c7sc05123a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/17/2018] [Indexed: 12/21/2022] Open
Abstract
Tri- and tetrasubstituted allenylboronic acids were prepared via a new versatile copper-catalyzed methodology. The densely functionalized allenylboronic acids readily undergo propargylboration reactions with ketones and imines without any additives. Catalytic asymmetric propargylborylation of ketones is demonstrated with high stereoselectivity allowing for the synthesis of highly enantioenriched tertiary homopropargyl alcohols. The reaction is suitable for kinetic resolution of racemic allenylboronic acids affording alkynes with adjacent quaternary stereocenters.
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Affiliation(s)
- Jian Zhao
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Sybrand J T Jonker
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Denise N Meyer
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Göran Schulz
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - C Duc Tran
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
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22
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Wu J, Nandi RK, Guillot R, Kouklovsky C, Vincent G. Dearomative Diallylation of N-Acylindoles Mediated by FeCl3. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00361] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ju Wu
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Equipe MSMT, Univ. Paris Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, Orsay 91405 Cedex, France
| | - Raj Kumar Nandi
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Equipe MSMT, Univ. Paris Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, Orsay 91405 Cedex, France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Equipe MSMT, Univ. Paris Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, Orsay 91405 Cedex, France
| | - Cyrille Kouklovsky
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Equipe MSMT, Univ. Paris Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, Orsay 91405 Cedex, France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Equipe MSMT, Univ. Paris Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clemenceau, Orsay 91405 Cedex, France
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23
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Abe T, Yamada K. Dehydrative Mannich-Type Reaction for the Synthesis of Azepinobisindole Alkaloid Iheyamine A. Org Lett 2018; 20:1469-1472. [DOI: 10.1021/acs.orglett.8b00330] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical
Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Koji Yamada
- Faculty of Pharmaceutical
Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
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24
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Huang G, Diner C, Szabó KJ, Himo F. Mechanism and Stereoselectivity of the BINOL-Catalyzed Allylboration of Skatoles. Org Lett 2017; 19:5904-5907. [PMID: 29039676 DOI: 10.1021/acs.orglett.7b02901] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Density functional theory calculations have been performed to investigate the binaphthol-catalyzed allylboration of skatoles. The high stereoselectivity observed for the reaction is reproduced well by the calculations and was found to be mainly a result of steric repulsions in the corresponding Zimmerman-Traxler transition states. The role of the additive MeOH in enhancing the stereoselectivity was also investigated and is suggested to promote the formation of less reactive allylboronic ester intermediates, thereby suppressing the formation of allylboroxine species, which undergo the facile racemic background reaction.
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Affiliation(s)
- Genping Huang
- Department of Chemistry, School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University , Tianjin 300072, P. R. China
| | - Colin Diner
- Department of Organic Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
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25
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Jiang H, Yu W, Tang X, Li J, Wu W. Copper-Catalyzed Aerobic Oxidative Regioselective Thiocyanation of Aromatics and Heteroaromatics. J Org Chem 2017; 82:9312-9320. [DOI: 10.1021/acs.joc.7b01122] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Huanfeng Jiang
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wentao Yu
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaodong Tang
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jianxiao Li
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wanqing Wu
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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26
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Wang D, Szabó KJ. Copper-Catalyzed, Stereoselective Cross-Coupling of Cyclic Allyl Boronic Acids with α-Diazoketones. Org Lett 2017; 19:1622-1625. [DOI: 10.1021/acs.orglett.7b00433] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Dong Wang
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
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27
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Diner C, Szabó KJ. Recent Advances in the Preparation and Application of Allylboron Species in Organic Synthesis. J Am Chem Soc 2016; 139:2-14. [DOI: 10.1021/jacs.6b10017] [Citation(s) in RCA: 189] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Colin Diner
- Department of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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28
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Alam R, Diner C, Jonker S, Eriksson L, Szabó KJ. Catalytic Asymmetric Allylboration of Indoles and Dihydroisoquinolines with Allylboronic Acids: Stereodivergent Synthesis of up to Three Contiguous Stereocenters. Angew Chem Int Ed Engl 2016; 55:14417-14421. [PMID: 27735124 PMCID: PMC5129484 DOI: 10.1002/anie.201608605] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Indexed: 12/17/2022]
Abstract
The catalytic asymmetric allylboration of cyclic imines with γ,γ‐disubstituted allylboronic acids provides products with adjacent stereocenters in high yield and stereoselectivity. Various electrophiles, including 3,4‐dihydroisoquinolines and indoles, were prenylated in a fully stereodivergent fashion by switching the E/Z geometry of the allylboronate and/or the enantiomer of the BINOL catalyst. 3‐Methylindole provided products with three adjacent stereocenters with high stereoselectivity in one synthetic operation.
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Affiliation(s)
- Rauful Alam
- Department of Organic Chemistry, Stockholm University, Sweden
| | - Colin Diner
- Department of Organic Chemistry, Stockholm University, Sweden
| | - Sybrand Jonker
- Department of Organic Chemistry, Stockholm University, Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry, Stockholm University, Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry, Stockholm University, Sweden.
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29
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Alam R, Diner C, Jonker S, Eriksson L, Szabó KJ. Catalytic Asymmetric Allylboration of Indoles and Dihydroisoquinolines with Allylboronic Acids: Stereodivergent Synthesis of up to Three Contiguous Stereocenters. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608605] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rauful Alam
- Department of Organic Chemistry; Stockholm University; Sweden
| | - Colin Diner
- Department of Organic Chemistry; Stockholm University; Sweden
| | - Sybrand Jonker
- Department of Organic Chemistry; Stockholm University; Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry; Stockholm University; Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry; Stockholm University; Sweden
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30
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Belhomme MC, Wang D, Szabó KJ. Formation of C(sp3)–C(sp3) Bonds by Palladium Catalyzed Cross-Coupling of α-Diazoketones and Allylboronic Acids. Org Lett 2016; 18:2503-6. [DOI: 10.1021/acs.orglett.6b01132] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Marie-Charlotte Belhomme
- Department
of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Dong Wang
- Department
of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department
of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
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31
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Morimoto N, Morioku K, Suzuki H, Takeuchi Y, Nishina Y. Lewis Acid and Fluoroalcohol Mediated Nucleophilic Addition to the C2 Position of Indoles. Org Lett 2016; 18:2020-3. [DOI: 10.1021/acs.orglett.6b00629] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - Yuta Nishina
- Precursory
Research for Embryonic Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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32
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Nandi RK, Ratsch F, Beaud R, Guillot R, Kouklovsky C, Vincent G. Intermolecular dearomative C2-arylation of N-Ac indoles activated by FeCl3. Chem Commun (Camb) 2016; 52:5328-31. [DOI: 10.1039/c6cc01654e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the FeCl3-mediated direct addition of electron-rich arenes to the C2-position of electrophilic N-Ac indoles under mild conditions (room temperature, air).
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Affiliation(s)
- Raj Kumar Nandi
- Univ Paris Sud
- CNRS
- Université Paris-Saclay
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
| | - Friederike Ratsch
- Univ Paris Sud
- CNRS
- Université Paris-Saclay
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
| | - Rodolphe Beaud
- Univ Paris Sud
- CNRS
- Université Paris-Saclay
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
| | - Régis Guillot
- Univ Paris Sud
- CNRS
- Université Paris-Saclay
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
| | - Cyrille Kouklovsky
- Univ Paris Sud
- CNRS
- Université Paris-Saclay
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
| | - Guillaume Vincent
- Univ Paris Sud
- CNRS
- Université Paris-Saclay
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
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33
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Senthilkumar S, Kumarraja M. Regioselective N-allylation and N-cinnamylation of indoles using CuI-exchanged hierarchical nanoporous material. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.07.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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34
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Das A, Wang D, Belhomme MC, Szabó KJ. Copper-Catalyzed Cross-Coupling of Allylboronic Acids with α-Diazoketones. Org Lett 2015; 17:4754-7. [DOI: 10.1021/acs.orglett.5b02285] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arindam Das
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Dong Wang
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Marie-Charlotte Belhomme
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
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35
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Brady PB, Carreira EM. Addition of Trifluoroborates to Oxetanyl N,O-Acetals: Entry into Spiro and Fused Saturated Heterocycles. Org Lett 2015; 17:3350-3. [DOI: 10.1021/acs.orglett.5b01607] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Patrick B. Brady
- Department of Chemistry and
Applied Biosciences, Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Erick M. Carreira
- Department of Chemistry and
Applied Biosciences, Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
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36
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Zhang S, Yu X, Feng X, Yamamoto Y, Bao M. Palladium-catalyzed regioselective allylation of five-membered heteroarenes with allyltributylstannane. Chem Commun (Camb) 2015; 51:3842-5. [DOI: 10.1039/c4cc10373d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regioselective allylation of five-membered heteroarenes can be achieved using a palladium catalyst via η3-allylpalladium intermediates.
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Affiliation(s)
- Sheng Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116023
- China
| | - Xiaoqiang Yu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116023
- China
| | - Xiujuan Feng
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116023
- China
| | - Yoshinori Yamamoto
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116023
- China
- WPI-AIMR (WPI-Advanced Institute for Materials Research)
| | - Ming Bao
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116023
- China
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37
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Sirvent JA, Foubelo F, Yus M. Stereoselective synthesis of indoline, tetrahydroquinoline, and tetrahydrobenzazepine derivatives from o-bromophenyl N-tert-butylsulfinyl aldimines. J Org Chem 2014; 79:1356-67. [PMID: 24447196 DOI: 10.1021/jo402759v] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The diastereoselective addition of an allylic indium intermediate to chiral o-bromophenyl sulfinyl imine 4 proceeded with good levels of diastereoselectivity. The resulting homoallylic amine derivatives were transformed into lactams 7 and 12, which upon copper-mediated intramolecular N-arylation led to the formation of benzo-fused 1-azabicyclo[j.k.0]alkanes 8 and 13. Benzo-fused 2-allyl-substituted heterocycles 14 could also be prepared by means of a palladium-catalyzed N-arylation of the corresponding free amines. The synthesis of the alkaloid (−)-angustureine was easily accomplished from (S)-2-allyltetrahydroquinoline (14b).
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Chen JLY, Aggarwal VK. Highly Diastereoselective and Enantiospecific Allylation of Ketones and Imines Using Borinic Esters: Contiguous Quaternary Stereogenic Centers. Angew Chem Int Ed Engl 2014; 53:10992-6. [DOI: 10.1002/anie.201407127] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Indexed: 11/08/2022]
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Chen JLY, Aggarwal VK. Highly Diastereoselective and Enantiospecific Allylation of Ketones and Imines Using Borinic Esters: Contiguous Quaternary Stereogenic Centers. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407127] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Wang JJ, Zhou AX, Wang GW, Yang SD. An Aluminum Triflate-Catalyzed Intramolecular Reaction Sequence Toward Concise Construction of the Tetrahydropyrido[1,2-a]indol-6-one Skeleton. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400391] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Janetzko J, Batey RA. Organoboron-Based Allylation Approach to the Total Synthesis of the Medium-Ring Dilactone (+)-Antimycin A1b. J Org Chem 2014; 79:7415-24. [DOI: 10.1021/jo501134d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John Janetzko
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S
3H6, Canada
| | - Robert A. Batey
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S
3H6, Canada
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42
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Das A, Alam R, Eriksson L, Szabó KJ. Stereocontrol in Synthesis of Homoallylic Amines. Syn Selective Direct Allylation of Hydrazones with Allylboronic Acids. Org Lett 2014; 16:3808-11. [DOI: 10.1021/ol501699x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Arindam Das
- Department of Organic Chemistry, ‡Department of Inorganic
and Structural Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Rauful Alam
- Department of Organic Chemistry, ‡Department of Inorganic
and Structural Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Lars Eriksson
- Department of Organic Chemistry, ‡Department of Inorganic
and Structural Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry, ‡Department of Inorganic
and Structural Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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43
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Beaud R, Guillot R, Kouklovsky C, Vincent G. Regioselective hydroarylation reactions of C3 electrophilic N-acetylindoles activated by FeCl3: an entry to 3-(hetero)arylindolines. Chemistry 2014; 20:7492-500. [PMID: 24828464 DOI: 10.1002/chem.201400284] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Indexed: 11/06/2022]
Abstract
A method for the direct and rare umpolung of the 3 position of indoles is reported. The activation of N-acetylindole with iron(III) chloride allows the C-H addition of aromatic and heteroaromatic substrates to the C2=C3 double bond of the indole nucleus to generate a quaternary center at C3 and leads regioselectively to 3-arylindolines. Optimization, scope (50 examples), practicability (gram scale, air atmosphere, room temperature), and mechanistic insights of this process are presented. Synthetic transformations of the indoline products into drug-like compounds are also described.
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Affiliation(s)
- Rodolphe Beaud
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe Méthodologie, Synthèse et Molécules Thérapeutiques, Univ Paris Sud and CNRS, 15 rue Georges Clemenceau, Bat 410, 91406, Orsay (France), Fax: (+33) 1-69-15-46-79
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44
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Pan Z, Pound SM, Rondla NR, Douglas CJ. Intramolecular aminocyanation of alkenes by N-CN bond cleavage. Angew Chem Int Ed Engl 2014; 53:5170-4. [PMID: 24719371 PMCID: PMC4077192 DOI: 10.1002/anie.201310983] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/06/2014] [Indexed: 11/06/2022]
Abstract
A metal-free, Lewis acid promoted intramolecular aminocyanation of alkenes was developed. B(C6F5)3 activates N-sulfonyl cyanamides, thus leading to a formal cleavage of the N-CN bonds in conjunction with vicinal addition of sulfonamide and nitrile groups across an alkene. This method enables atom-economical access to indolines and tetrahydroquinolines in excellent yields, and provides a complementary strategy for regioselective alkene difunctionalizations with sulfonamide and nitrile groups. Labeling experiments with (13)C suggest a fully intramolecular cyclization pattern due to the lack of label scrambling in double crossover experiments. Catalysis with Lewis acid is realized and the reaction can be conducted under air.
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Affiliation(s)
- Zhongda Pan
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
| | - Sarah M. Pound
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
| | - Naveen R. Rondla
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
| | - Christopher J. Douglas
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
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45
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Beveridge RE, Batey RA. An Organotrifluoroborate-Based Convergent Total Synthesis of the Potent Cancer Cell Growth Inhibitory Depsipeptides Kitastatin and Respirantin. Org Lett 2014; 16:2322-5. [DOI: 10.1021/ol500484f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ramsay E. Beveridge
- Davenport
Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto ON, Canada, M5S 3H6
| | - Robert A. Batey
- Davenport
Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto ON, Canada, M5S 3H6
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46
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Pan Z, Pound SM, Rondla NR, Douglas CJ. Intramolecular Aminocyanation of Alkenes by NCN Bond Cleavage. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310983] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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47
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Alam R, Das A, Huang G, Eriksson L, Himo F, Szabó KJ. Stereoselective allylboration of imines and indoles under mild conditions. An in situ E/Z isomerization of imines by allylboroxines. Chem Sci 2014. [DOI: 10.1039/c4sc00415a] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Direct allylboration of various acyclic and cyclic aldimine, ketimine and indole substrates was performed using allylboronic acids.
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Affiliation(s)
- Rauful Alam
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Arindam Das
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Genping Huang
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Lars Eriksson
- Department of Inorganic and Structural Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
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48
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Lebed EG, Belov AS, Dolganov AV, Vologzhanina AV, Novikov VV, Kuznetsov EV, Voloshin YZ. Template synthesis, structure and properties of 4-pyridinylboron-capped iron(II) clathrochelate precursors for Bubnov diallylation reaction. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.04.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Ramadhar TR, Bansagi J, Batey RA. Mild double allylboration reactions of nitriles and acid anhydrides using potassium allyltrifluoroborate. J Org Chem 2013; 78:1216-21. [PMID: 23214971 DOI: 10.1021/jo302194n] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The double allylboration of nitriles and acid anhydrides to form bis-allyl amines and esters, respectively, can be achieved through the use of potassium allyltrifluoroborate in the presence of boron trifluoride etherate at room temperature. The method described is relatively mild, exhibits chemoselectivity to other electrophiles present, avoids the use of metals, and features the use of an operationally stable and robust potassium organotrifluoroborate reagent.
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Affiliation(s)
- Timothy R Ramadhar
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada, M5S 3H6
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50
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