1
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Kharitonov VB, Podyacheva E, Chusov D, Nelyubina YV, Muratov DV, Loginov DA. Planar Chiral Rhodium Complex Based on the Tetrahydrofluorenyl Core for Enantioselective Catalysis. Org Lett 2023. [PMID: 38051945 DOI: 10.1021/acs.orglett.3c03726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
A simple four-step route to a chiral tetrahydrofluorenyl rhodium catalyst from naturally occurring (-)-α-pinene was developed. Our approach does not use multistep and time-consuming procedures such as chiral HPLC or diastereomeric resolution. The key to success lies in the face-selective coordination of rhodium to the sterically hindered tetrahydrofluorenyl ligand, giving only one diastereomeric complex. This catalyst proved to be highly efficient for asymmetric C-H annulation of aryl hydroxamates with alkenes (yield up to 95%, 91% ee) at low loading (up to 0.4 mol % based on Rh).
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Affiliation(s)
- Vladimir B Kharitonov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119334, Russia
| | - Evgeniya Podyacheva
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119334, Russia
| | - Denis Chusov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119334, Russia
| | - Yulia V Nelyubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119334, Russia
| | - Dmitry V Muratov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119334, Russia
| | - Dmitry A Loginov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119334, Russia
- Plekhanov Russian University of Economics, Stremyannyi Pereulok 36, Moscow 117997, Russia
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2
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Hubbell GE, Tepe JJ. Rh(III)-Catalyzed C-H Activation/Annulation of Benzohydroxamates and 2-Imidazolones: Access to Urea-Fused-Dihydroisoquinolone Scaffolds Reminiscent of Pyrrole Alkaloid Natural Products. Org Lett 2022; 24:6740-6744. [PMID: 36083605 DOI: 10.1021/acs.orglett.2c02508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Rh(III)-catalyzed C-H activation/annulation with an imidazolone as alkene partner is reported to access dihydroisoquinolone-fused imidazolin-2-ones. These bicycles are reminiscent of scaffolds belonging to the pyrrole alkaloid family of natural products. This approach facilitates construction of a variety of urea-fused dihydroisoquinolone scaffolds including heterocyclic moieties.
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Affiliation(s)
- Grace E Hubbell
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Jetze J Tepe
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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3
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Burg F, Rovis T. Rh(III)-catalyzed Intra- and Intermolecular 3,4-Difunctionalization of 1,3-Dienes via Rh(III)-π-allyl Amidation with 1,4,2-Dioxazolones. ACS Catal 2022; 12:9690-9697. [PMID: 37829170 PMCID: PMC10569259 DOI: 10.1021/acscatal.2c02537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We herein report a modular strategy, which enables Rh(III)-catalyzed diastereoselective 3,4-amino oxygenation and diamination of 1,3-dienes using different O- and N-nucleophiles in combination with readily available 3-substituted 1,4,2-dioxazolones (78 examples, 37-91% yield). Previous attempts to functionalize the internal double bond rested on the use of plain alcoholic solvents as nucleophilic coupling partners thus dramatically limiting the scope of this transformation. We have now identified hexafluoroisopropanol as a non-nucleophilic solvent which allows the use of diverse nucleophiles and greatly expands the scope, including an unprecedented amino hydroxylation to selectively install valuable, unprotected β-amino alcohols across 1,3-dienes. Moreover, various elaborate alcohols prove to be compatible providing unique access to complex organic molecules. Finally, this method is employed in a series of intramolecular reactions to deliver valuable nitrogen heterocycles as well as γ- and δ-lactones.
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Affiliation(s)
- Finn Burg
- Department of Chemistry, Columbia University, New York 10027, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York 10027, United States
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4
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Rani N, Mazumder S. Why Does an Inert C4–H Bond in Indolyl Aldehyde Get Activated Unexpectedly by a Rh(III) Catalyst over a More Reactive C2–H Bond while the Opposite Is True for Acetophenone? Guidelines for Inverting Regioselectivity. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neha Rani
- Department of Chemistry, Indian Institute of Technology Jammu, Jammu 181221, India
| | - Shivnath Mazumder
- Department of Chemistry, Indian Institute of Technology Jammu, Jammu 181221, India
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5
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Abstract
Heterocyclic rings are the fundamental building blocks of biological systems and have wide applications in synthetic chemistry and medicinal science. The development of novel synthetic methodology for heterocyclic skeletons from a variety of starting materials has made great progress in the past decades. Meanwhile, highly strained cyclopropenes as reactive reagents in organic transformations have drawn much attention from chemists. The rich chemical reactivity and reaction routes have been well investigated, and some review articles related to the reactivity of cyclopropenes and the construction of carbocycles and acyclic compounds have appeared in these years. Thus, this review mainly focuses on the progress in the construction of heterocyclic rings starting from various cyclopropenes including the reactions of commonly available stable cyclopropenes, in situ generated reactive cyclopropenes and cyclopropene precursors during this decade. Firstly, the transformations of common cyclopropenes into donor-type vinyl metal carbenes via transition metal induced ring opening, direct metalation of the CC bond of metal complexes, and cycloaddition reactions with 1,3-dipoles are described. Next, the annulation reactions of reactive cyclopropenes generated in situ with donor-acceptor reagents, intramolecular nucleophilic addition, and the cycloaddition reactions with 1,3-dipoles are introduced. Then, the transformation of cyclopropene precursors such as alkyl 1-chloro- or 1-alkoxy-2-aroylcyclopropanecarboxylates into five-membered heteroaromatic compounds is also mentioned. In addition, a brief outlook of the opportunity and challenges in the field of bio-orthogonal reactions related to cyclopropenes is given.
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Affiliation(s)
- Hengrui Huo
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China. .,Hebei Key Laboratory of Heterocyclic Compounds, College of Chemical Engineering and Materials, Handan University, 530 North College Road, Handan 056005, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China.
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6
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Su J, Li Q, Shao Y, Sun J. Catalytic Transformations of 2-Pyridones by Rhodium-Mediated Carbene Transfer. Org Lett 2022; 24:1637-1641. [PMID: 35191701 DOI: 10.1021/acs.orglett.2c00151] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An enantioselective cyclopropanation reaction of N-substituted 2-pyridones with diazo compounds has been realized by using a chiral rhodium complex as the catalyst, and the corresponding chiral cyclopropanes could be formed in good yields with high enantioselectivities. Moreover, using acceptor-acceptor dimethyl 2-diazomalonate as the carbene precursor, a novel 1,4-rearrangement of a Boc group from N to C has also been discovered under rhodium catalysis.
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Affiliation(s)
- Jiahui Su
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qiongya Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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7
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He Y, Tian L, Chang X, Qu Z, Huang Y, Huang C, Sun Q, Wang H. Rhodium-catalyzed formal [4 + 3] annulation reaction of N-methoxybenzamides with gem-difluorocyclopropenes: A combination of experimental and theoretical studies. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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8
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Wang HH, Wang XD, Yin GF, Zeng YF, Chen J, Wang Z. Recent Advances in Transition-Metal-Catalyzed C–H Alkylation with Three-Membered Rings. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05266] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hui-Hong Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, People’s Republic of China
| | - Xiao-Dong Wang
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, People’s Republic of China
| | - Gao-Feng Yin
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, People’s Republic of China
| | - Yao-Fu Zeng
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, People’s Republic of China
| | - Jinjin Chen
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, People’s Republic of China
| | - Zhen Wang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, People’s Republic of China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, People’s Republic of China
- School of Pharmacy, Lanzhou University, No. 199 West Donggang Road, Lanzhou 730000, People’s Republic of China
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9
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Sun L, Zhao Y, Liu B, Chang J, Li X. RhodiumIII-Catalyzed Remote Difunctionalization of Arenes Assisted by a Relay Directing Group. Chem Sci 2022; 13:7347-7354. [PMID: 35799802 PMCID: PMC9214915 DOI: 10.1039/d2sc02205b] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/28/2022] [Indexed: 11/21/2022] Open
Abstract
Rhodium-catalyzed diverse tandem twofold C-H bond activation reactions of para olefin-tethered arenes have been realized, with unsaturated reagents such as internal alkynes, dioxazolones, and isocyanates being the coupling partner as...
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Affiliation(s)
- Lincong Sun
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Yuyao Zhao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Bingxian Liu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Junbiao Chang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Xingwei Li
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University Qingdao 250100 China
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10
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Liu J, Xiao X, Lai Y, Zhang Z. Recent advances in transition metal-catalyzed heteroannulative difunctionalization of alkenes via C-H activation for the synthesis of heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo00081d] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterocyclic compounds are the fundamental structural motifs distributed in natural products, pharmaceuticals and biologically active compounds. Thus, there is increasing interest in the development of novel synthetic strategies for the...
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11
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Zhao X, Yue X, Han Z, Feng Y, Gao T, Li S, Cui X. Rhodium-Catalysed Regioselective [4+2]-type Annulation of 1-H-Indazoles with Propargyl Alcohols: A direct entry to 6-alkenylindazolo[3,2-a]isoquinolines. Org Chem Front 2022. [DOI: 10.1039/d2qo01258h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of 6-vinylindazolo[3,2-a]isoquinolines via rhodium(III)-catalysed C-H bond activation/subsequent [4+2] cyclization starting from easily available 3-aryl-1-H-indazoles and propargyl alcohols has been developed. A series of vinyl-annulated...
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12
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Xu H, Chen W, Bian M, Xu H, Gao H, Wang T, Zhou Z, Yi W. Gem-Difluorocyclopropenes as Versatile β-Monofluorinated Three-sp 2 Carbon Sources for Cp*Rh(III)-Catalyzed [4 + 3] Annulation: Experimental Development and Mechanistic Insight. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04508] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Huiying Xu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Weijie Chen
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Mengyao Bian
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hongtao Xu
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Hui Gao
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Ting Wang
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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13
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Burg F, Rovis T. Diastereoselective Three-Component 3,4-Amino Oxygenation of 1,3-Dienes Catalyzed by a Cationic Heptamethylindenyl Rhodium(III) Complex. J Am Chem Soc 2021; 143:17964-17969. [PMID: 34668705 DOI: 10.1021/jacs.1c09276] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The direct oxyamination of olefins is a compelling tool to rapidly access β-amino alcohols-a privileged motif ubiquitous in natural products, pharmaceuticals and agrochemicals. Although a variety of expedient methods are established for simple alkenes, selective amino oxygenation of 1,3-dienes is less explored. Within this context, methods for the oxyamination of 1,3-dienes that are selective for the internal position remain unprecedented. We herein report a modular three-component approach to perform an internal and highly diastereoselective amino oxygenation of 1,3-dienes catalyzed by a cationic heptamethylindenyl (Ind*) Rh(III) complex.
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Affiliation(s)
- Finn Burg
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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14
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Ramachandran K, Anbarasan P. Cobalt-catalyzed multisubstituted allylation of the chelation-assisted C-H bond of (hetero)arenes with cyclopropenes. Chem Sci 2021; 12:13442-13449. [PMID: 34777763 PMCID: PMC8528013 DOI: 10.1039/d1sc03476f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 09/14/2021] [Indexed: 12/04/2022] Open
Abstract
Cyclopropenes are highly strained three-membered carbocycles, which offer unique reactivity in organic synthesis. Herein, Cp*CoIII-catalyzed ring-opening isomerization of cyclopropenes to cobalt vinylcarbene has been utilized for the synthesis of multisubstituted allylarenes via directing group-assisted functionalization of C-H bonds of arenes and heteroarenes. Employing this methodology, various substituents can be introduced at all three carbons of the allyl moiety with high selectivity. The important highlights are excellent functional group tolerance, multisubstituted allylation, high selectivity, gram scale synthesis, removable directing group, and synthesis of cyclopenta[b]indoles. In addition, a potential cobaltocycle intermediate was identified and a plausible mechanism is also proposed.
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Affiliation(s)
- Kuppan Ramachandran
- Department of Chemistry, Indian Institute of Technology Madras Chennai 600036 India https://home.iitm.ac.in/anbarasansp/
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras Chennai 600036 India https://home.iitm.ac.in/anbarasansp/
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15
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Evans KJ, Morton PA, Luz C, Miller C, Raine O, Lynam JM, Mansell SM. Rhodium Indenyl NHC and Fluorenyl-Tethered NHC Half-Sandwich Complexes: Synthesis, Structures and Applications in the Catalytic C-H Borylation of Arenes and Alkanes. Chemistry 2021; 27:17824-17833. [PMID: 34653269 PMCID: PMC9299238 DOI: 10.1002/chem.202102961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Indexed: 01/11/2023]
Abstract
Indenyl (Ind) rhodium N-heterocyclic carbene (NHC) complexes [Rh(η5 -Ind)(NHC)(L)] were synthesised for 1,3-bis(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene (SIPr) with L=C2 H4 (1), CO (2 a) and cyclooctene (COE; 3), for 1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene (SIMes) with L=CO (2 b) and COE (4), and 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) with L=CO (2 c) and COE (5). Reaction of SIPr with [Rh(Cp*)(C2 H4 )2 ] did not give the desired SIPr complex, thus demonstrating the "indenyl effect" in the synthesis of 1. Oxidative addition of HSi(OEt)3 to 3 proceeded under mild conditions to give the Rh silyl hydride complex [Rh(Ind){Si(OEt)3 }(H)(SIPr)] (6) with loss of COE. Tethered-fluorenyl NHC rhodium complexes [Rh{(η5 -C13 H8 )C2 H4 N(C)C2 Hx NR}(L)] (x=4, R=Dipp, L=C2 H4 : 11; L=COE: 12; L=CO: 13; R=Mes, L=COE: 14; L=CO: 15; x=2, R=Me, L=COE: 16; L=CO: 17) were synthesised in low yields (5-31 %) in comparison to good yields for the monodentate complexes (49-79 %). Compounds 3 and 1, which contain labile alkene ligands, were successful catalysts for the catalytic borylation of benzene with B2 pin2 (Bpin=pinacolboronate, 97 and 93 % PhBpin respectively with 5 mol % catalyst, 24 h, 80 °C), with SIPr giving a more active catalyst than SIMes or IMes. Fluorenyl-tethered NHC complexes were much less active as borylation catalysts, and the carbonyl complexes were inactive. The borylation of toluene, biphenyl, anisole and diphenyl ether proceeded to give meta substitutions as the major product, with smaller amounts of para substitution and almost no ortho product. The borylation of octane and decane with B2 pin2 at 120 and 140 °C, respectively, was monitored by 11 B NMR spectroscopy, which showed high conversions into octyl and decylBpin over 4-7 days, thus demonstrating catalysed sp3 C-H borylation with new piano stool rhodium indenyl complexes. Irradiation of the monodentate complexes with 400 or 420 nm light confirmed the ready dissociation of C2 H4 and COE ligands, whereas CO complexes were inert. Evidence for C-H bond activation in the alkyl groups of the NHC ligands was obtained.
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Affiliation(s)
- Kieren J Evans
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Paul A Morton
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Christian Luz
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Callum Miller
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Olivia Raine
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Jason M Lynam
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Stephen M Mansell
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
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16
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Desai B, Patel M, Dholakiya BZ, Rana S, Naveen T. Recent advances in directed sp 2 C-H functionalization towards the synthesis of N-heterocycles and O-heterocycles. Chem Commun (Camb) 2021; 57:8699-8725. [PMID: 34397068 DOI: 10.1039/d1cc02176a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocyclic compounds are widely present in the core structures of several natural products, pharmaceuticals and agrochemicals, and thus great efforts have been devoted to their synthesis in a mild and simpler way. In the past decade, remarkable progress has been made in the field of heterocycle synthesis by employing C-H functionalization as an emerging synthetic strategy. As a complement to previous protocols, transition metal catalyzed C-H functionalization of arenes using various directing groups has recently emerged as a powerful tool to create different classes of heterocycles. This review is mainly focussed on the recent key progress made in the field of the synthesis of N,O-heterocycles from olefins and allenes by using nitrogen based and oxidizing directing groups.
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Affiliation(s)
- Bhargav Desai
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat-395 007, India.
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17
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Kim YL, Park SA, Choi SM, Park JU, Kim JH. Co III-Catalyzed C-H Alkenylation and Allylation with Cyclopropenes via Sequential C-H/C-C Bond Activation. Org Lett 2021; 23:6674-6679. [PMID: 34474571 DOI: 10.1021/acs.orglett.1c02219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An atom-economical strategy for the C-H alkenylation and C-H allylation of arenes by employing cyclopropenes as versatile alkenylating and allylating reagents is reported, catalyzed by cobalt. The Co-catalyzed C-H alkenylation process involves sequential C-H and C-C bond cleavage. Under the optimized conditions, broad-ranging alkenylated (hetero)arenes were synthesized with complete (E)-stereoselectivity (up to 91%). The consecutive C-H allylation proved viable under basic conditions via double-bond migration of the initially generated alkenyl (hetero)arenes, thus leading to allylated (hetero)arenes with high stereoselectivity of olefin (E/Z ratio = 91:9 to 100:0).
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Affiliation(s)
- Ye Lim Kim
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Sun-A Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Seoung-Mi Choi
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Jong-Un Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
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18
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Kharitonov VB, Runikhina SA, Nelyubina YV, Muratov DV, Chusov D, Loginov DA. Easy Access to Versatile Catalytic Systems for C-H Activation and Reductive Amination Based on Tetrahydrofluorenyl Rhodium(III) Complexes. Chemistry 2021; 27:10903-10912. [PMID: 33783057 DOI: 10.1002/chem.202100572] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Indexed: 12/15/2022]
Abstract
On the basis of the 1,2,3,4-tetrahydrofluorenyl ligand, a simple approach was developed to new effective rhodium catalysts for the construction of C-C and C-N bonds. The halide compounds [(η5 -tetrahydrofluorenyl)RhX2 ]2 (2 a: X=Br; 2 b: X=I) were synthesized by treatment of the bis(ethylene) derivative (η5 -tetrahydrofluorenyl)Rh(C2 H4 )2 (1 a) with halogens. An analogous reaction of the cyclooctadiene complex (η5 -tetrahydrofluorenyl)Rh(cod) (1 b) with I2 is complicated by the side formation of [(cod)RhI]2 . The reaction of 2 b with 2,2'-bipyridyl leads to cation [(η5 -tetrahydrofluorenyl)Rh(2,2'-bipyridyl)I]+ (3). The halide abstraction from 2 a,b with thallium or silver salts allowed us to prepare sandwich compounds with incoming cyclopentadienyl, dicarbollide and mesityleneligands [(η5 -tetrahydrofluorenyl)RhCp]+ (4), (η5 -tetrahydrofluorenyl)Rh(η-7,8-C2 B9 H11 ) (5), and [(η5 -tetrahydrofluorenyl)Rh(η-mesitylene)]2+ (6). The structures of 1 b, 2 b ⋅ 2I2 , 3PF6 , 4TlI4 , 5, and [(cod)RhI]2 were determined by X-ray diffraction. Compounds 2 a,b efficiently catalyze the oxidative coupling of benzoic acids with alkynes to selectively give isocoumarins or naphthalenes, depending on the reaction temperature. Moreover, they showed moderate catalytic activity in other annulations of alkynes with aromatic compounds (such as benzamide, acetanilide, etc.) which proceed through CH activation. Compound 2 b also effectively catalyzes the reductive amination of aldehydes and ketones in the presence of carbon monoxide and water via water-gas shift reaction, giving amines in high yields (67-99 %).
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Affiliation(s)
- Vladimir B Kharitonov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991, Moscow, Russian Federation.,Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, Moscow, 125047, Russian Federation
| | - Sofiya A Runikhina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991, Moscow, Russian Federation
| | - Yulia V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991, Moscow, Russian Federation
| | - Dmitry V Muratov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991, Moscow, Russian Federation
| | - Denis Chusov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991, Moscow, Russian Federation.,G.V. Plekhanov Russian University of Economics, 36 Stremyanny Per., Moscow, 117997, Russian Federation
| | - Dmitry A Loginov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991, Moscow, Russian Federation.,G.V. Plekhanov Russian University of Economics, 36 Stremyanny Per., Moscow, 117997, Russian Federation
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19
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Zhao F, Qiao J, Lu Y, Zhang X, Dai L, Liu S, Ni H, Jia X, Wu X, Lu S. Redox-Neutral Rhodium(III)-Catalyzed Chemospecific and Regiospecific [4+1] Annulation between Indoles and Alkenes for the Synthesis of Functionalized Imidazo[1,5- a]indoles. J Org Chem 2021; 86:10591-10607. [PMID: 34297561 DOI: 10.1021/acs.joc.1c01256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Exploiting internal alkenes embedded with an oxidizing function/leaving group as a rare and unconventional one-carbon unit, a redox-neutral rhodium(III)-catalyzed chemo- and regiospecific [4+1] annulation between indoles and alkenes for the synthesis of functionalized imidazo[1,5-a]indoles has been achieved. Internal alkenes employed here can fulfill an unusual [4+1] annulation rather than normal [4+2] annulation/C-H alkenylation. This method is characterized by excellent chemo- and regioselectivity, broad substrate scope, good functional group tolerance, good to high yields, and redox-neutral conditions.
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Affiliation(s)
- Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Jin Qiao
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Yangbin Lu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Xiaoning Zhang
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Long Dai
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Siyu Liu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Hangcheng Ni
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China
| | - Xiaowei Wu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, P. R. China.,Zhongshan Institute for Drug Discovery, the Institutes of Drug Discovery and Development, Chinese Academy of Sciences, Zhongshan 528400, P. R. China
| | - Shiyao Lu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
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20
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Synergistic Dinuclear Rhodium Induced Rhodium-Walking Enabling Alkene Terminal Arylation: A Theoretical Study. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Muriel B, Waser J. Azide Radical Initiated Ring Opening of Cyclopropenes Leading to Alkenyl Nitriles and Polycyclic Aromatic Compounds. Angew Chem Int Ed Engl 2021; 60:4075-4079. [PMID: 33205851 DOI: 10.1002/anie.202013516] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/04/2020] [Indexed: 01/05/2023]
Abstract
We report herein a radical-mediated amination of cyclopropenes. The transformation proceeds through a cleavage of the three-membered ring after the addition of an azide radical on the strained double bond and leads to tetrasubstituted alkenyl nitrile derivatives upon loss of N2 . With 1,2-diaryl substituted cyclopropenes, this methodology could be extended to a one-pot synthesis of highly functionalized polycyclic aromatic compounds (PACs). This transformation allows the synthesis of nitrile-substituted alkenes and aromatic compounds from rapidly accessed cyclopropenes using only commercially available reagents.
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Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
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22
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Antonchick AP, Waldmann H, Shaaban S, Li H, Merten C. Rhodium(III)-Catalyzed Enantioselective Benzamidation of Cyclopropenes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractCyclopropylamines are characteristic structural motifs found in a variety of natural products and pharmaceuticals and therefore engaging targets for the development of new methods for their synthesis. Herein the synthesis of enantioenriched cyclopropylamines through catalytic enantioselective C–H functionalization using a chiral RhJasCp complex is reported. The reaction proceeds under mild conditions with high enantiocontrol. This reaction enables access to cyclopropylamines with three contiguous stereocenters originating from the corresponding cyclopropenes.
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Affiliation(s)
- Andrey P. Antonchick
- Max Planck Institute of Molecular Physiology
- Department of Chemical Biology, Technical University Dortmund
- Department of Chemistry and Forensics, College of Science and Technology, Nottingham Trent University
| | - Herbert Waldmann
- Max Planck Institute of Molecular Physiology
- Department of Chemical Biology, Technical University Dortmund
| | | | - Houhua Li
- Max Planck Institute of Molecular Physiology
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23
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Gallegos LC, Luchini G, St. John PC, Kim S, Paton RS. Importance of Engineered and Learned Molecular Representations in Predicting Organic Reactivity, Selectivity, and Chemical Properties. Acc Chem Res 2021; 54:827-836. [PMID: 33534534 DOI: 10.1021/acs.accounts.0c00745] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Machine-readable chemical structure representations are foundational in all attempts to harness machine learning for the prediction of reactivities, selectivities, and chemical properties directly from molecular structure. The featurization of discrete chemical structures into a continuous vector space is a critical phase undertaken before model selection, and the development of new ways to quantitatively encode molecules is an active area of research. In this Account, we highlight the application and suitability of different representations, from expert-guided "engineered" descriptors to automatically "learned" features, in different prediction tasks relevant to organic and organometallic chemistry, where differing amounts of training data are available. These tasks include statistical models of stereo- and enantioselectivity, thermochemistry, and kinetics developed using experimental and quantum chemical data.The use of expert-guided molecular descriptors provides an opportunity to incorporate chemical knowledge, domain expertise, and physical constraints into statistical modeling. In applications to stereoselective organic and organometallic catalysis, where data sets may be relatively small and 3D-geometries and conformations play an important role, mechanistically informed features can be used successfully to obtain predictive statistical models that are also chemically interpretable. We provide an overview of several recent applications of this approach to obtain quantitative models for reactivity and selectivity, where topological descriptors, quantum mechanical calculations of electronic and steric properties, along with conformational ensembles, all feature as essential ingredients of the molecular representations used.Alternatively, more flexible, general-purpose molecular representations such as attributed molecular graphs can be used with machine learning approaches to learn the complex relationship between a structure and prediction target. This approach has the potential to out-perform more traditional representation methods such as "hand-crafted" molecular descriptors, particularly as data set sizes grow. One area where this is particularly relevant is in the use of large sets of quantum mechanical data to train quantitative structure-property relationships. A general approach toward curating useful data sets and training highly accurate graph neural network models is discussed in the context of organic bond dissociation enthalpies, where this strategy outperforms regression using precomputed descriptors.Finally, we describe how graph neural network predictions can be incorporated into mechanistically informed statistical models of chemical reactivity and selectivity. Once trained, this approach avoids the expensive computational overhead associated with quantum mechanical calculations, while maintaining chemical interpretability. We illustrate examples for which fast predictions of bond dissociation enthalpy and of the identities of radicals formed through cleavage of a molecule's weakest bond are used in simple physical models of site-selectivity and reactivity.
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Affiliation(s)
- Liliana C. Gallegos
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Guilian Luchini
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Peter C. St. John
- Biosciences Center, National Renewable Energy Laboratory, 15103 Denver West Parkway, Golden, Colorado 80401, United States
| | - Seonah Kim
- Biosciences Center, National Renewable Energy Laboratory, 15103 Denver West Parkway, Golden, Colorado 80401, United States
| | - Robert S. Paton
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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24
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Wang Y, Huang X, Wang Q, Tang Y, Xu S, Li Y. Synthesis of Cyclopentadienes for Cyclopentadienyl Ligands via Cp*Rh III-Catalyzed Formal sp 3 C-H Activation/Spiroannulations. Org Lett 2021; 23:757-761. [PMID: 33439664 DOI: 10.1021/acs.orglett.0c03982] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An efficient Cp*RhIII-catalyzed formal C(sp3)-H activation/spiroannulation of alkylidene Meldrum's acids with alkynes has been developed using catalytical Cu(OAc)2 and air as the oxidant. This reaction demonstrates a new and straightforward approach to spirocyclopentadienes with Meldrum's acid moieties in good to excellent yields under mild reaction conditions with a broad substrate scope. Notably, this protocol provides a novel and straightforward approach to cyclopentadienes with various substitution patterns and the corresponding cyclopentadienyl-type ligands from simple substrates.
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Affiliation(s)
- Yongzhuang Wang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Xiaoli Huang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Qin Wang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Yuhai Tang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Silong Xu
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Yang Li
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
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25
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Muriel B, Waser J. Azide Radical Initiated Ring Opening of Cyclopropenes Leading to Alkenyl Nitriles and Polycyclic Aromatic Compounds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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26
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Xu M, Xia Y. Mechanistic Understanding of Rh(III)-Catalyzed Redox-Neutral C—H Activation/Annulation Reactions of N-Phenoxyacetamides and Methyleneoxetanones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Bian M, Mawjuda H, Gao H, Xu H, Zhou Z, Yi W. Lossen Rearrangement vs C-N Reductive Elimination Enabled by Rh(III)-Catalyzed C-H Activation/Selective Lactone Ring-Opening: Chemodivergent Synthesis of Quinolinones and Dihydroisoquinolinones. Org Lett 2020; 22:9677-9682. [PMID: 33274634 DOI: 10.1021/acs.orglett.0c03734] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unprecedented Rh(III)-catalyzed cascade C-H activation/Lossen rearrangement of aromatic amides with methyleneoxetanones has been realized along with a tunable C-N bond reductive elimination/trans esterification, giving divergent access to quinolinones and dihydroisoquinolinones via selective ring-opening of the four-membered lactone unit. Combined computational and experimental mechanistic studies defined the solvent-involved distinguished reaction paths, the origin of the observed chemodivergence, as well as the role of the substituent attached at the oxidizing directing group in tuning the reaction outcomes.
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Affiliation(s)
- Mengyao Bian
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hamdulla Mawjuda
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Huiying Xu
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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28
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Mukherjee P, Maiti D. Evolution of strept(avidin)-based artificial metalloenzymes in organometallic catalysis. Chem Commun (Camb) 2020; 56:14519-14540. [PMID: 33150893 DOI: 10.1039/d0cc05450j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Artificial metalloenzymes have been recently established as efficient alternatives to traditional transition metal catalysts. The presence of a secondary coordination sphere in artificial metalloenzymes makes them advantageous over transition metal catalysts, which rely essentially on their first coordination sphere to exhibit their catalytic activity. Recent developments on streptavidin- and avidin-based artificial metalloenzymes have made them highly chemically and genetically evolved for selective organometallic transformations. In this review, we discuss the chemo-genetic optimization of streptavidin- and avidin-based artificial metalloenzymes for the enhancement of their catalytic activities towards a wide range of synthetic transformations. Considering the high impact in vivo applications of artificial metalloenzymes, their catalytic efficacies to promote abiological reactions in intracellular as well as periplasmic environment are also discussed. Overall, this review can provide an insight to readers regarding the design and systematic optimization of strept(avidin)-based artificial metalloenzymes for specific reactions.
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Affiliation(s)
- Prasun Mukherjee
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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29
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Li Y, Cheng XF, Fei F, Wu TR, Bian KJ, Zhou X, Wang XS. Palladium(II)-catalyzed asymmetric C-H carbonylation to diverse isoquinoline derivatives bearing all-carbon quaternary stereocenters. Chem Commun (Camb) 2020; 56:11605-11608. [PMID: 32869786 DOI: 10.1039/d0cc05219a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Enantioselective synthesis of tetrahydroisoquinolines bearing an all-carbon quaternary stereogenic center, was achieved via asymmetric C-H activation with high enantioselectivities (up to 93% ee). Fair substrate tolerance was indicated throughout the scope investigation and no evident loss of enantioselectivity was exhibited in late-stage derivatization. This study provides incentives for the construction of diverse chiral isoquinoline derivatives, which are prevalent among pharmaceuticals, natural products, etc.
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Affiliation(s)
- Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
| | - Xiu-Fen Cheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
| | - Fan Fei
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
| | - Tian-Rui Wu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
| | - Kang-Jie Bian
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
| | - Xin Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
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30
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Shaaban S, Davies C, Merten C, Flegel J, Otte F, Strohmann C, Waldmann H. Rh III -Catalyzed C-H Activation of Aryl Hydroxamates for the Synthesis of Isoindolinones. Chemistry 2020; 26:10729-10734. [PMID: 32428319 PMCID: PMC7496876 DOI: 10.1002/chem.202002384] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Indexed: 01/20/2023]
Abstract
RhIII -catalyzed C-H functionalization reaction yielding isoindolinones from aryl hydroxamates and ortho-substituted styrenes is reported. The reaction proceeds smoothly under mild conditions at room temperature, and tolerates a range of functional groups. Experimental and computational investigations support that the high regioselectivity observed for these substrates results from the presence of an ortho-substituent embedded in the styrene. The resulting isoindolinones are valuable building blocks for the synthesis of bioactive compounds. They provide easy access to the natural-product-like compounds, isoindolobenzazepines, in a one-pot two-step reaction. Selected isoindolinones inhibited Hedgehog (Hh)-dependent differentiation of multipotent murine mesenchymal progenitor stem cells into osteoblasts.
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Affiliation(s)
- Saad Shaaban
- Max-Planck-Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
| | - Caitlin Davies
- Max-Planck-Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Technical University DortmundFaculty of Chemical BiologyOtto-Hahn-Strasse 4a44227DortmundGermany
| | - Christian Merten
- Ruhr University BochumOrganic Chemistry IIUniversitätsstrasse 15044801BochumGermany
| | - Jana Flegel
- Max-Planck-Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Technical University DortmundFaculty of Chemical BiologyOtto-Hahn-Strasse 4a44227DortmundGermany
| | - Felix Otte
- Technical University DortmundDepartment of Inorganic ChemistryOtto-Hahn-Strasse 644227DortmundGermany
| | - Carsten Strohmann
- Technical University DortmundDepartment of Inorganic ChemistryOtto-Hahn-Strasse 644227DortmundGermany
| | - Herbert Waldmann
- Max-Planck-Institute of Molecular PhysiologyDepartment of Chemical BiologyOtto-Hahn-Strasse 1144227DortmundGermany
- Technical University DortmundFaculty of Chemical BiologyOtto-Hahn-Strasse 4a44227DortmundGermany
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31
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Prasad Raiguru B, Nayak S, Ranjan Mishra D, Das T, Mohapatra S, Priyadarsini Mishra N. Synthetic Applications of Cyclopropene and Cyclopropenone: Recent Progress and Developments. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000193] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Sabita Nayak
- Department of ChemistryRavenshaw University Cuttack Odisha India
| | | | - Tapaswini Das
- Department of ChemistryRavenshaw University Cuttack Odisha India
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32
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Vicente R. C–C Bond Cleavages of Cyclopropenes: Operating for Selective Ring-Opening Reactions. Chem Rev 2020; 121:162-226. [DOI: 10.1021/acs.chemrev.0c00151] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Rubén Vicente
- Facultad de Quı́mica, Departamento de Quı́mica Orgánica e Inorgánica, Instituto de Quı́mica Organometálica Enrique Moles, Universidad de Oviedo, 33006 Oviedo, Spain
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33
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Shi Y, Fang Y, Zhao X, Zhu C, Wu X, Yang X, Luo Y. Remarkable Ligand Effect on Rh-Catalyzed C–H-Active [3 + 2] Annulation of Ketimines and Alkynes. Org Lett 2020; 22:4903-4907. [DOI: 10.1021/acs.orglett.0c01768] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yan Shi
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yong Fang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xu Zhao
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chengfeng Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiang Wu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiaoming Yang
- Shanghai Chiral Chemistry Co., Ltd., 158 Wuhe Road, Minhang District, Shanghai 201109, China
| | - Yunfei Luo
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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34
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Cui WJ, Wu ZJ, Gu Q, You SL. Divergent Synthesis of Tunable Cyclopentadienyl Ligands and Their Application in Rh-Catalyzed Enantioselective Synthesis of Isoindolinone. J Am Chem Soc 2020; 142:7379-7385. [DOI: 10.1021/jacs.0c02813] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wen-Jun Cui
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zhi-Jie Wu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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35
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Chen Z, Kong X, Xu B. Rh(III)‐Catalyzed C−H Acylmethylation of 6‐Arylpurines Using Sulfoxonium Ylides as Carbene Precursors. ChemistrySelect 2020. [DOI: 10.1002/slct.201904754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhibing Chen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Xianqiang Kong
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
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36
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Zheng G, Zhou Z, Zhu G, Zhai S, Xu H, Duan X, Yi W, Li X. Rhodium(III)‐Catalyzed Enantio‐ and Diastereoselective C−H Cyclopropylation of N‐Phenoxylsulfonamides: Combined Experimental and Computational Studies. Angew Chem Int Ed Engl 2020; 59:2890-2896. [DOI: 10.1002/anie.201913794] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Guoxun Zhu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shuailei Zhai
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Huiying Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Xujing Duan
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
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37
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Wu M, Lin S, Zhu G, Sun M, Zhou Z, Gao H, Yi W. Synergistic Dual Directing Groups-Enabled Diastereoselective C–H Cyclopropylation via Rh(III)-Catalyzed Couplings with Cyclopropenyl Alcohols. Org Lett 2020; 22:1295-1300. [DOI: 10.1021/acs.orglett.9b04608] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Min Wu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Shuang Lin
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Guoxun Zhu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Ming Sun
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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38
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Zheng G, Zhou Z, Zhu G, Zhai S, Xu H, Duan X, Yi W, Li X. Rhodium(III)‐Catalyzed Enantio‐ and Diastereoselective C−H Cyclopropylation of N‐Phenoxylsulfonamides: Combined Experimental and Computational Studies. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913794] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Guoxun Zhu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shuailei Zhai
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Huiying Xu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Xujing Duan
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology, and the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOESchool of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 P. R. China
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39
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Abstract
As readily accessible strained carbocycles, cyclopropenes show a diverse range of reactivities, and a lot of novel and useful transformations have been developed.
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Affiliation(s)
- Penghua Li
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xiaoyu Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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40
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Lee S, Jang YJ, Phipps EJT, Lei H, Rovis T. Rhodium(III)-Catalyzed Three-Component 1,2-Diamination of Unactivated Terminal Alkenes. SYNTHESIS-STUTTGART 2020; 52:1247-1252. [PMID: 34290458 DOI: 10.1055/s-0039-1690756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We report a three-component diamination of simple unactivated alkenes using an electrophilic nitrene source and amine nucleophiles. The reaction provides rapid access to 1,2-vicinal diamines from terminal alkenes through a one-pot protocol. The transformation proceeds smoothly with excellent tolerance for a broad array of primary and secondary amines, affording the desired product with good yield and regioselectivity. The mechanism is proposed to proceed through a Rh(III)-catalyzed aziridination of alkenes with subsequent ring opening by primary or secondary amines.
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Affiliation(s)
- Sumin Lee
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Young Jin Jang
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Erik J T Phipps
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Honghui Lei
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, NY 10027, USA
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41
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Muriel B, Gagnebin A, Waser J. Synthesis of bicyclo[3.1.0]hexanes by (3 + 2) annulation of cyclopropenes with aminocyclopropanes. Chem Sci 2019; 10:10716-10722. [PMID: 32110351 PMCID: PMC7006509 DOI: 10.1039/c9sc03790j] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/07/2019] [Indexed: 12/11/2022] Open
Abstract
We report the convergent synthesis of bicyclo[3.1.0]hexanes possessing an all-carbon quaternary center via a (3 + 2) annulation of cyclopropenes with cyclopropylanilines. Using an organic or an iridium photoredox catalyst and blue LED irradiation, good yields were obtained for a broad range of cyclopropene and cyclopropylaniline derivatives. The reaction was highly diastereoselective when using difluorocyclopropenes together with a removable substituent on the cyclopropylaniline, giving access to important building blocks for medicinal chemistry. With efficient methods existing for the synthesis of both reaction partners, our method grants a fast access to highly valuable bicyclic scaffolds with three contiguous stereocenters.
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Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimique , Ecole Polytechnique Fédérale de Lausanne , Lausanne , Ch-1015 , Switzerland .
| | - Alec Gagnebin
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimique , Ecole Polytechnique Fédérale de Lausanne , Lausanne , Ch-1015 , Switzerland .
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimique , Ecole Polytechnique Fédérale de Lausanne , Lausanne , Ch-1015 , Switzerland .
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42
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Yamada T, Shibata Y, Tanaka K. Formal Lossen Rearrangement/Alkenylation or Annulation Cascade of Heterole Carboxamides with Alkynes Catalyzed by CpRh III Complexes with Pendant Amides. Chemistry 2019; 25:16022-16031. [PMID: 31553093 DOI: 10.1002/chem.201904156] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 09/24/2019] [Indexed: 01/24/2023]
Abstract
It has been established that a cyclopentadienyl (Cp) RhIII complex with two aryl groups and a pendant amide moiety catalyzes the formal Lossen rearrangement/alkenylation cascade of N-pivaloyl heterole carboxamides with internal alkynes, leading to alkenylheteroles. Interestingly, the use of sterically demanding internal alkynes afforded not the alkenylation but the [3+2] annulation products ([5,5]-fused heteroles). In these reactions, the pendant amide moiety of the CpRhIII complex may accelerate the formal Lossen rearrangement. The use of five-membered heteroles may deter reductive elimination to form strained [5,5]-fused heteroles; instead, protonation proceeds to give the alkenylation products. Bulky alkyne substituents accelerate the reductive elimination to allow the formation of the [5,5]-fused heteroles.
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Affiliation(s)
- Takayuki Yamada
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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43
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44
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Shah TA, De PB, Pradhan S, Banerjee S, Punniyamurthy T. Exploiting Strained Rings in Chelation Guided C−H Functionalization: Integration of C−H Activation with Ring Cleavage. Chem Asian J 2019; 14:4520-4533. [DOI: 10.1002/asia.201901067] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/17/2019] [Indexed: 02/01/2023]
Affiliation(s)
- Tariq A. Shah
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Pinaki Bhusan De
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Sourav Pradhan
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Sonbidya Banerjee
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
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45
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Shao X, Malcolmson SJ. Catalytic Enantio- and Diastereoselective Cyclopropanation of 2-Azadienes for the Synthesis of Aminocyclopropanes Bearing Quaternary Carbon Stereogenic Centers. Org Lett 2019; 21:7380-7385. [PMID: 31465235 PMCID: PMC6790987 DOI: 10.1021/acs.orglett.9b02692] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report the catalytic enantio- and diastereoselective preparation of aminocyclopropanes by the cyclopropanation of terminal and (Z)-internal 2-azadienes with donor/acceptor carbenes derived from α-diazoesters. The resulting cyclopropanes bear quaternary carbon stereogenic centers vicinal to the amino-substituted carbon and are formed as a single diastereomer in up to 99:1 er and 97% yield with 0.5 mol % of Rh2(DOSP)4 and only 1.5 equiv of the diazo reagent. Transformations with internal azadienes afford cyclopropanes with three contiguous stereogenic centers.
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Affiliation(s)
- Xinxin Shao
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United State
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United State
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46
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Lee S, Lei H, Rovis T. A Rh(III)-Catalyzed Formal [4+1] Approach to Pyrrolidines from Unactivated Terminal Alkenes and Nitrene Sources. J Am Chem Soc 2019; 141:12536-12540. [PMID: 31381308 PMCID: PMC7428074 DOI: 10.1021/jacs.9b07012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have developed a formal [4+1] approach to pyrrolidines from readily available unactivated terminal alkenes as 4-carbon partners. The reaction provides a rapid construction of various pyrrolidine containing structures, especially for the diastereoselective synthesis of spiro-pyrrolidines. Mechanistic investigation suggests a Rh(III)-catalyzed intermolecular aziridination of the alkene and subsequent acid-promoted ring expansion for the pyrrolidine formation.
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Affiliation(s)
| | | | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, New York, United States
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47
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Guo S, Pan R, Guan Z, Li P, Cai L, Chen S, Lin A, Yao H. Synthesis of Indole-Fused Polycyclics via Rhodium-Catalyzed Undirected C-H Activation/Alkene Insertion. Org Lett 2019; 21:6320-6324. [PMID: 31386379 DOI: 10.1021/acs.orglett.9b02198] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A Rh(III)-catalyzed undirected C-H activation/alkene insertion to synthesize diversified indole-fused polycyclics has been developed. Intramolecular electrophilic cyclization generated a 3-indolyl rhodium species that went through an aryl-to-aryl 1,4-rhodium migration to realize the C-H activation. The subsequent [4 + 2] carboannulation or hydroarylation of alkenes could be achieved, respectively, by simply adjusting the additives of the reaction.
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Affiliation(s)
- Songjin Guo
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Rui Pan
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Zhe Guan
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Panpan Li
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Libo Cai
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Siwei Chen
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Aijun Lin
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Hequan Yao
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
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48
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Li Z, Zhang M, Zhang Y, Liu S, Zhao J, Zhang Q. Multicomponent Cyclopropane Synthesis Enabled by Cu-Catalyzed Cyclopropene Carbometalation with Organoboron Reagent: Enantioselective Modular Access to Polysubstituted 2-Arylcyclopropylamines. Org Lett 2019; 21:5432-5437. [DOI: 10.1021/acs.orglett.9b01650] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zhanyu Li
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mengru Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yu Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shuang Liu
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jinbo Zhao
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Lu, Shanghai 200032, China
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49
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Fu X, Yang J, Deng K, Shao L, Xia C, Ji Y. Tandem C–C/C–N Formation via Palladium-Catalyzed C–H Activation/Styrenation and Sequential Annulation of O-Methylketoxime with Styrenes. Org Lett 2019; 21:3505-3509. [DOI: 10.1021/acs.orglett.9b00702] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xiaopan Fu
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Jinyue Yang
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Kezuan Deng
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Lingyan Shao
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Chengcai Xia
- Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Taian 271016, P. R. China
| | - Yafei Ji
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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50
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Yoshimura R, Shibata Y, Yoshizaki S, Terasawa J, Yamada T, Tanaka K. Oxidative Annulation of Acetanilides with Alkynes Catalyzed by Cyclopentadienyl Rhodium(III) Complexes with Pendant Amides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ryo Yoshimura
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Soichi Yoshizaki
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Jyunichi Terasawa
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Takayuki Yamada
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
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