1
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Griffiths CM, Franckevičius V. The Catalytic Asymmetric Allylic Alkylation of Acyclic Enolates for the Construction of Quaternary and Tetrasubstituted Stereogenic Centres. Chemistry 2024; 30:e202304289. [PMID: 38284328 DOI: 10.1002/chem.202304289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 01/30/2024]
Abstract
To facilitate the discovery and development of new pharmaceuticals, the demand for novel stereofunctionalised building blocks has never been greater. Whilst molecules bearing quaternary and tetrasubstituted stereogenic centres are ideally suited to explore untapped areas of chemical space, the asymmetric construction ofsterically congested carbon centres remains a longstanding challenge in organic synthesis. The enantioselective assembly of acyclic stereogenic centres is even more demanding due to the need to restrict a much wider range of geometries and conformations of the intermediates involved. In this context, the catalytic asymmetric allylicalkylation (AAA) of acyclic prochiral nucleophiles, namely enolates, has become an indispensable tool to access a range of linearα-quaternary andα-tetrasubstituted carbonyl compounds. However, unlike the AAA of cyclic enolates with a fixed enolate geometry, to achieve high levels of stereocontrol in the AAA of acyclic enolates, the stereoselectivity of enolisation must be considered. The aim of this review is to offer acomprehensivediscussion of catalytic AAA reactions of acyclic prochiral enolates and their analogues to generate congested quaternary and tetrasubstituted chiral centres using metal, non-metal and dual catalysis, with particular focus given to the control of enolate geometry and its impact on the stereochemical outcome of the reaction.
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2
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Joseph E, Hernandez RD, Tunge JA. Cobalt-Catalyzed Decarboxylative Allylations: Development and Mechanistic Studies. Chemistry 2023; 29:e202302174. [PMID: 37467152 PMCID: PMC10592299 DOI: 10.1002/chem.202302174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/21/2023]
Abstract
In recent years, there has been a concerted drive to develop methods that are greener and more sustainable. Being an earth-abundant transition metal, cobalt offers an attractive substitute for commonly employed precious metal catalysts, though reactions engaging cobalt are still less developed. Herein, we report a method to achieve the decarboxylative allylation of nitrophenyl alkanes, nitroalkanes, and ketones employing cobalt. The reaction allows for the formation of various substituted allylated products in moderate-excellent yields with a broad scope. Additionally, the synthetic potential of the methodology is demonstrated by the transformation of products into versatile heterocyclic motifs. Mechanistic studies revealed an in situ activation of the Co(II)/dppBz precatalyst by the carboxylate salt to generate a Co(I)-species, which is presumed to be the active catalyst.
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Affiliation(s)
- Ebbin Joseph
- Department of Chemistry, The University of Kansas, 1567 Irving Rd., Lawrence, KS 66045, USA
| | - Rafael D. Hernandez
- Department of Chemistry, The University of Kansas, 1567 Irving Rd., Lawrence, KS 66045, USA
| | - Jon A. Tunge
- Department of Chemistry, The University of Kansas, 1567 Irving Rd., Lawrence, KS 66045, USA
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3
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Zou JY, Yang YY, Gu J, Liu F, Ye Z, Yi W, He Y. Asymmetric Allylic Substitution-Isomerization for the Modular Synthesis of Axially Chiral N-Vinylquinazolinones. Angew Chem Int Ed Engl 2023; 62:e202310320. [PMID: 37582683 DOI: 10.1002/anie.202310320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 08/17/2023]
Abstract
Axially chiral N-substituted quinazolinones are important bioactive molecules, which are presented in many synthetic drugs. However, most strategies toward their atroposelective synthesis are mainly limited to the axially chiral arylquinazolinone frameworks. The development of modular synthetic methods to access diverse quinazolinone-based atropisomers remains scarce and challenging. Herein, we report the regio- and atroposelective synthesis of axially chiral N-vinylquinazolinones via the strategy of asymmetric allylic substitution-isomerization. The catalysis system utilized both asymmetric transition-metal catalysis and organocatalysis to efficiently afford trisubstituted and tetrasubstituted N-vinylquinazolinone atropisomers, respectively. With the meticulous design of β-substituted allylic substrates, both Z- and E-tetrasubstituted axially chiral N-vinylquinazolinones were obtained in good yields and high enantioselectivities.
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Affiliation(s)
- Jia-Yu Zou
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yu-Ying Yang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Jun Gu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Fei Liu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zhiwen Ye
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Wenbin Yi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Ying He
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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4
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Parammal A, Singh S, Kumar M, Xavier JS, Subramanian P. Robust Synthesis of Terpenoid Scaffolds under Mn(I)-Catalysis. J Org Chem 2023. [PMID: 37463248 DOI: 10.1021/acs.joc.3c00816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The 6/6/5-fused tricyclic scaffold is a central feature of structurally complex terpenoid natural products. A step-economical cascade transformation that leads to a complex molecular skeleton is regarded as a sustainable methodology. Therefore, we report the first Mn(I)-catalyzed C(sp2)-H chemoselective in situ dienylation and diastereoselective intramolecular Diels-Alder reaction using iso-pentadienyl carbonate to access 6/6/5-fused tricyclic scaffolds. To the best of our knowledge, there is no such report thus far to utilize iso-pentadienyl carbonate as a substrate in C-H activation catalysis. Extensive mechanistic studies, such as the isolation of catalytically active organo-manganese(I) complexes, 1,3-dienyl-intermediates, and isotopic labeling experiments have supported the proposed mechanism of this cascade reaction.
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Affiliation(s)
- Athira Parammal
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Shubham Singh
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Manoj Kumar
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Joe Sam Xavier
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
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5
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Pellissier H. TADDOL-derived phosphorus ligands in asymmetric catalysis. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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6
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Xie JH, Hou YM, Feng Z, You SL. Stereodivergent Construction of 1,3-Chiral Centers via Tandem Asymmetric Conjugate Addition and Allylic Substitution Reaction. Angew Chem Int Ed Engl 2023; 62:e202216396. [PMID: 36597878 DOI: 10.1002/anie.202216396] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/05/2023]
Abstract
Herein, we report a synthesis of cyclohexanones bearing multi-continuous stereocenters by combining copper-catalyzed asymmetric conjugate addition of dialkylzinc reagents to cyclic enones with iridium-catalyzed asymmetric allylic substitution reaction. Good to excellent yields, diastereoselectivity and enantioselectivity can be obtained. Unlike the stereodivergent construction of adjacent stereocenters (1,2-position) reported in the literature, the current reaction can achieve the stereodivergent construction of nonadjacent stereocenters (1,3-position) by a proper combination of two chiral catalysts with different enantiomers.
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Affiliation(s)
- Jia-Hao Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
| | - Yi-Ming Hou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
| | - Zuolijun Feng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
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7
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Zhou L, Zanda N, Chaudhari M, Da Silva MF, Pericàs MA. Development of Immobilized Carreira (Phosphoramidite, Olefin) Ligands and Application in Iridium-Catalyzed Asymmetric Allylic Amination. J Org Chem 2023; 88:2166-2173. [PMID: 36700541 PMCID: PMC9942233 DOI: 10.1021/acs.joc.2c02589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A family of polystyrene-supported (phosphoramidite, olefin) ligands L1-L4, based on the original design by Defieber and Carreira, has been developed and applied in iridium-catalyzed asymmetric allylic amination of unmasked allylic alcohols (27 examples, up to 99% ee). Among them, functional resins L1 and L4 exhibit important advantages such as easy preparation, ligand recyclability, and easy handling for sequential use. As a distinctive advantage, the catalytic use of the iridium complexes of L1 and L4 allows the straightforward reuse of a high percentage of the expensive iridium metal involved in the complexes, which is not achievable under homogeneous conditions with the corresponding monomeric complexes.
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Affiliation(s)
- Leijie Zhou
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), E-43007 Tarragona, Spain
| | - Nicola Zanda
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), E-43007 Tarragona, Spain
| | - Moreshwar Chaudhari
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), E-43007 Tarragona, Spain
| | - Mariane Felicio Da Silva
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), E-43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), E-43007 Tarragona, Spain,Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, 43007 Tarragona, Spain,
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8
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Mitra S, Sarkar R, Chakrabarty A, Mukherjee S. Hydroxy-directed iridium-catalyzed enantioselective formal β-C(sp 2)-H allylic alkylation of α,β-unsaturated carbonyls. Chem Sci 2022; 13:12491-12497. [PMID: 36382287 PMCID: PMC9629034 DOI: 10.1039/d2sc03966d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/12/2022] [Indexed: 02/12/2024] Open
Abstract
Hydroxy-directed iridium-catalyzed enantioselective formal β-C(sp2)-H allylic alkylation of kojic acid and structurally related α,β-unsaturated carbonyl compounds is developed. This reaction, catalyzed by an Ir(i)/(P,olefin) complex, utilizes the nucleophilic character of α-hydroxy α,β-unsaturated carbonyls, to introduce an allyl group at its β-position in a branched-selective manner in good to excellent yield with uniformly high enantioselectivity (up to >99.9 : 0.1 er). To the best of our knowledge, this report represents the first example of the use of kojic acid in a transition metal catalyzed highly enantioselective transformation.
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Affiliation(s)
- Sankash Mitra
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Rahul Sarkar
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Aditya Chakrabarty
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
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9
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Pandit S, Adhikari AS, Majumdar N. Iridium-Catalyzed Enantioselective Ring Opening of Alkenyl Oxiranes by Unactivated Carboxylic Acids. Org Lett 2022; 24:7388-7393. [PMID: 36197282 DOI: 10.1021/acs.orglett.2c02919] [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
An iridium-catalyzed enantioselective ring-opening of alkenyl oxiranes by unactivated carboxylic acids has been developed. The reaction undergoes at ambient conditions between an in-situ-generated chiral iridium-π-allyl complex and carboxylic acids to provide rapid access to valuable alkenyl diols in high yields. The synthetic utility of this method is demonstrated by the elaboration of the products into various medium and large ring-sized compounds that are part of biologically relevant molecules.
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Affiliation(s)
- Soumen Pandit
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh India
| | - Amit Singh Adhikari
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh India
| | - Nilanjana Majumdar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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10
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Ding W, Li M, Fan J, Cheng X. Palladium-catalyzed asymmetric allylic 4-pyridinylation via electroreductive substitution reaction. Nat Commun 2022; 13:5642. [PMID: 36163325 PMCID: PMC9512896 DOI: 10.1038/s41467-022-33452-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
The enantioselective pyridinylation is important for providing chiral compounds bearing heterocycles of pharmaceutical interests. 4-CN-pyrinde is extensively applied in the radical pyridinylation reaction, however, its’ enantioselective application is highly challenging. To achieve this goal, we propose an electrochemical catalytic activation of 4-CN-pyridine with a chiral transition metal complex instead of direct cathodic reduction. The chiral catalyst acts as the electron mediator and the transition metal catalysis in turn. The radical species from 4-CN-pyridine is captured via radical rebound by chiral catalyst, and undergoes enantioselective pyridinylation reaction. Here, we show the first method for catalytic asymmetric allylic 4-pyridinylation reactions using 4-CN-pyridine under electrochemical conditions. Controlling the enantioselectivity of radical reactions is a persistent challenge in organic synthesis. Here, the authors report a method to form asymmetric pyridine derivatives via the combination of chiral palladium catalysis and electrochemistry.
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Affiliation(s)
- Weijie Ding
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Mengfan Li
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jinkun Fan
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China. .,State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, China.
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11
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Modular synthesis of diphosphoramidite ligands derived from 1,8,10,9-triazaboradecalin and their complexes with Ni, Pd, and Pt. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115877] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Yamakawa Y, Ikuta T, Hayashi H, Hashimoto K, Fujii R, Kawashima K, Mori S, Uchida T, Katsuki T. Iridium(III)-Catalyzed Asymmetric Site-Selective Carbene C-H Insertion during Late-Stage Transformation. J Org Chem 2022; 87:6769-6780. [PMID: 35504014 DOI: 10.1021/acs.joc.2c00470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
C-H functionalization has recently received considerable attention because C-H functionalization during the late-stage transformation is a strong and useful tool for the modification of the bioactive compounds and the creation of new active molecules. Although a carbene transfer reaction can directly convert a C-H bond to the desired C-C bond in a stereoselective manner, its application in late-stage material transformation is limited. Here, we observed that the iridium-salen complex 6 exhibited efficient catalysis in asymmetric carbene C-H insertion reactions. Under optimized conditions, benzylic, allylic, and propargylic C-H bonds were converted to desired C-C bonds in an excellent stereoselective manner. Excellent regioselectivity was demonstrated in the reaction using not only simple substrate but also natural products, bearing multiple reaction sites. Moreover, based on the mechanistic studies, the iridium-catalyzed unique C-H insertion reaction involved rate-determining asynchronous concerted processes.
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Affiliation(s)
- Yuki Yamakawa
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takashi Ikuta
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroki Hayashi
- Faculty of Arts and Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Keigo Hashimoto
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Ryoma Fujii
- Institute of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, Mito 310-8512, Japan.,Frontier Research Center for Applied Atomic Sciences, Ibaraki University, Tokai, Ibaraki 319-1106, Japan
| | - Kyohei Kawashima
- Institute of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, Mito 310-8512, Japan.,Frontier Research Center for Applied Atomic Sciences, Ibaraki University, Tokai, Ibaraki 319-1106, Japan
| | - Seiji Mori
- Institute of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, Mito 310-8512, Japan.,Frontier Research Center for Applied Atomic Sciences, Ibaraki University, Tokai, Ibaraki 319-1106, Japan
| | - Tatsuya Uchida
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Faculty of Arts and Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Tsutomu Katsuki
- International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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13
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Chakrabarty A, Mukherjee S. Iridium-Catalyzed Enantioselective and Chemodivergent Allenylic Alkylation of Vinyl Azides for the Synthesis of α-Allenylic Amides and Ketones. Angew Chem Int Ed Engl 2022; 61:e202115821. [PMID: 35044711 DOI: 10.1002/anie.202115821] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Indexed: 01/14/2023]
Abstract
The first enantioselective synthesis of α-allenylic amides and ketones through allenylic alkylation of vinyl azides is reported. In these chemodivergent reactions, cooperatively catalyzed by a IrI /(phosphoramidite,olefin) complex and Sc(OTf)3 , vinyl azides act as the surrogate for both amide enolates and ketone enolates. The desiccant (molecular sieves) plays a crucial role in controlling the chemodivergency of this enantioconvergent and regioselective reaction: Under otherwise identical reaction conditions, the presence of the desiccant led to α-allenylic amides, while its absence resulted in α-allenylic ketones. Utilizing racemic allenylic alcohols as the alkylating agent, the overall process represents a dynamic kinetic asymmetric transformation (DyKAT), where both the products are formed with the same absolute configuration. To the best of our knowledge, this is the first example of the use of vinyl azide as the ketone enolate surrogate in an enantioselective transformation.
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Affiliation(s)
- Aditya Chakrabarty
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560 012, India
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560 012, India
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14
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Albat D, Köcher A, Witt J, Schmalz HG. On the Asymmetric Ir‐catalyzed N‐Allylation of Amino Acid Esters: Improved Selectivities through Structural Variation of the Chiral Phosphoramidite Ligand. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dominik Albat
- University of Cologne: Universitat zu Koln Department of Chemistry Koeln GERMANY
| | - Alicia Köcher
- University of Cologne: Universitat zu Koln Department of Chemistry Koel GERMANY
| | - Julia Witt
- University of Cologne: Universitat zu Koln Department of Chemistry Koeln GERMANY
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15
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Chakrabarty A, Mukherjee S. Iridium‐Catalyzed Enantioselective and Chemodivergent Allenylic Alkylation of Vinyl Azides for the Synthesis of α‐Allenylic Amides and Ketones**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aditya Chakrabarty
- Department of Organic Chemistry Indian Institute of Science Bangalore 560 012 India
| | - Santanu Mukherjee
- Department of Organic Chemistry Indian Institute of Science Bangalore 560 012 India
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16
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Wang S, Zhang Q, Niu J, Guo X, Xiong T, Zhang Q. Copper‐Catalyzed Asymmetric Hydroallylation of Vinylsilanes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Simin Wang
- Northeast Normal University Department of Chemistry CHINA
| | - Qiao Zhang
- Northeast Normal University Department of Chemistry CHINA
| | - Junbo Niu
- Northeast Normal University Department of Chemistry CHINA
| | - Xiaobing Guo
- Northeast Normal University Department of Chemistry CHINA
| | - Tao Xiong
- Northeast Normal University Department of Chemistry Renmin ST. 5268 130024 ChangChun CHINA
| | - Qian Zhang
- Northeast Normal University Department of Chemistry CHINA
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17
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Li B, Xu H, Dang Y, Houk KN. Dispersion and Steric Effects on Enantio-/Diastereoselectivities in Synergistic Dual Transition-Metal Catalysis. J Am Chem Soc 2022; 144:1971-1985. [DOI: 10.1021/jacs.1c12664] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Bo Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Hui Xu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yanfeng Dang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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18
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Sawano T, Takeuchi R. Recent advances in iridium-catalyzed enantioselective allylic substitution using phosphoramidite-alkene ligands. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00316c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This minireview describes the recent progress of iridium-catalyzed enantioselective allylic substitution using phosphoramidite-alkene ligands realizing highly enantioselective carbon–carbon and carbon–heteroatom bond formation.
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Affiliation(s)
- Takahiro Sawano
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Ryo Takeuchi
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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19
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Paul S, Das KK, Aich D, Manna S, Panda S. Recent developments in the asymmetric synthesis and functionalization of symmetrical and unsymmetrical gem-diborylalkanes. Org Chem Front 2022. [DOI: 10.1039/d1qo01300a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
gem-Diborylalkanes are an important class of organoboron compounds as they function as a key building block in organic synthesis. This review summarizes recent developments of the enantioselective synthesis of gem-diborylalkanes and application in asymmetric synthesis.
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Affiliation(s)
- Swagata Paul
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
| | - Kanak Kanti Das
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
| | - Debasis Aich
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
| | - Samir Manna
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
| | - Santanu Panda
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
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20
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Pounder A, Tam W. Iron-catalyzed domino coupling reactions of π-systems. Beilstein J Org Chem 2021; 17:2848-2893. [PMID: 34956407 PMCID: PMC8685557 DOI: 10.3762/bjoc.17.196] [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: 09/22/2021] [Accepted: 11/24/2021] [Indexed: 12/26/2022] Open
Abstract
The development of environmentally benign, inexpensive, and earth-abundant metal catalysts is desirable from both an ecological and economic standpoint. Certainly, in the past couple decades, iron has become a key player in the development of sustainable coupling chemistry and has become an indispensable tool in organic synthesis. Over the last ten years, organic chemistry has witnessed substantial improvements in efficient synthesis because of domino reactions. These protocols are more atom-economic, produce less waste, and demand less time compared to a classical stepwise reaction. Although iron-catalyzed domino reactions require a mindset that differs from the more routine noble-metal, homogenous iron catalysis they bear the chance to enable coupling reactions that rival that of noble-metal-catalysis. This review provides an overview of iron-catalyzed domino coupling reactions of π-systems. The classifications and reactivity paradigms examined should assist readers and provide guidance for the design of novel domino reactions.
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Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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21
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Sawano T, Matsui T, Koga M, Ishikawa E, Takeuchi R. Iridium-catalyzed C3-selective asymmetric allylation of 7-azaindoles with secondary allylic alcohols. Chem Commun (Camb) 2021; 57:9684-9687. [PMID: 34555140 DOI: 10.1039/d1cc03968g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The development of efficient synthetic methods of 7-azaindoles has been desired due to the useful biological activities and physical properties. We report the first example of the iridium-catalyzed C3-selective asymmetric allylation of 7-azaindoles with racemic secondary allylic alcohols to give only branched allylation products in good to high yields with high enantioselectivity (up to >99.5% ee). Allylic alcohols and 7-azaindoles with a variety of functional groups including halogen and heteroaromatic groups are compatible with the reaction conditions. Furthermore, transformations of the obtained allylation products are demonstrated without a significant loss of enantiomeric excess.
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Affiliation(s)
- Takahiro Sawano
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
| | - Takeshi Matsui
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
| | - Marina Koga
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
| | - Eri Ishikawa
- Department of Applied Chemistry, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan.
| | - Ryo Takeuchi
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
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22
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Wang J, Qi X, Min XL, Yi W, Liu P, He Y. Tandem Iridium Catalysis as a General Strategy for Atroposelective Construction of Axially Chiral Styrenes. J Am Chem Soc 2021; 143:10686-10694. [PMID: 34228930 DOI: 10.1021/jacs.1c04400] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Axially chiral styrenes are of great interest since they may serve as a class of novel chiral ligands in asymmetric synthesis. However, only recently have strategies been developed for their enantioselective preparation. Thus, the development of novel and efficient methodologies is highly desirable. Herein, we reported the first tandem iridium catalysis as a general strategy for the synthesis of axially chiral styrenes enabled by Asymmetric Allylic Substitution-Isomerization (AASI) using cinnamyl carbonate analogues as electrophiles and naphthols as nucleophiles. In this approach, axially chiral styrenes were generated through two independent iridium-catalytic cycles: iridium-catalyzed asymmetric allylic substitution and in situ isomerization via stereospecific 1,3-hydride transfer catalyzed by the same iridium catalyst. Both experimental and computational studies demonstrated that the isomerization proceeded by iridium-catalyzed benzylic C-H bond oxidative addition, followed by terminal C-H reductive elimination. Amid the central-to-axial chirality transfer, the hydroxyl of naphthol plays a crucial role in ensuring the stereospecificity by coordinating with the Ir(I) center. The process accommodated broad functional group compatibility. The products were generated in excellent yields with excellent to high enantioselectivities, which could be transformed to various axially chiral molecules.
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Affiliation(s)
- Jie Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Xiaotian Qi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Xiao-Long Min
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Wenbin Yi
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ying He
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
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23
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Wang T, Peng Y, Li G, Luo Y, Ye Y, Huo X, Zhang W. Synergistic Ir/Cu Catalysis for Asymmetric Allylic Alkylation of Oxindoles: Enantio- and Diastereoselective Construction of Quaternary and Tertiary Stereocenters. Chemistry 2021; 27:10255-10260. [PMID: 33982366 DOI: 10.1002/chem.202101267] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Indexed: 01/14/2023]
Abstract
3,3-Disubstituted oxindoles bearing quaternary and tertiary stereogenic centers are privileged structural motifs, which widely exist in pharmaceutical and natural products. Herein, a highly regio-, enantio-, and diastereoselective allylic alkylation of 3-alkyl oxindoles through synergistic iridium and copper catalysis is described, which provides a series of 3,3-disubstituted oxindole derivatives containing adjacent quaternary and tertiary stereogenic centers in excellent yields, enantiomeric excess, and diastereomeric ratio (for 30 examples, up to 97 % yield, >99 % ee, and >20 : 1 dr). This method provides exclusive branched selectivity, excellent enantio- and diastereoselectivities, and good functional compatibility. Control experiments suggested that the chiral copper catalyst is required for achieving high reactivities and diastereoselectivities under mild reaction conditions.
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Affiliation(s)
- Tianhong Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Youbin Peng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Guanlin Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yicong Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yong Ye
- College of Chemistry, Zhengzhou University, 75 Daxue Road, Zhengzhou, 450052, China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.,College of Chemistry, Zhengzhou University, 75 Daxue Road, Zhengzhou, 450052, China
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24
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Mitra S, Mukherjee S. Iridium-Catalyzed Asymmetric Allylic Alkylation of Deconjugated Butyrolactams. Org Lett 2021; 23:3021-3026. [PMID: 33821654 DOI: 10.1021/acs.orglett.1c00697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Compared with the ever-growing list of nonprochiral nucleophiles in Ir-catalyzed asymmetric allylic substitution reactions, prochiral nucleophiles are less studied. We present a new prochiral nucleophile, namely, deconjugated butyrolactam, for Ir-catalyzed asymmetric allylic alkylation (AAA). This reaction provides access to α-allyl deconjugated butyrolactams with a moderate to good dr and an excellent er. This is the first AAA reaction of deconjugated butyrolactams. Allyl transposition through Cope rearrangement appears to proceed stereospecifically to form γ-allyl conjugated butyrolactams.
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Affiliation(s)
- Sankash Mitra
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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25
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Zhang TY, Deng Y, Wei K, Yang YR. Enantioselective Iridium-Catalyzed Allylic Alkylation of Racemic Branched Alkyl-Substituted Allylic Acetates with Malonates. Org Lett 2021; 23:1086-1089. [PMID: 33480703 DOI: 10.1021/acs.orglett.0c04309] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The regio- and enantioselective allylic substitution of branched alkyl-substituted allylic acetates employing malonates has been achieved through a process that calls for Krische's π-allyliridium C,O-benzoate catalyst. The protocol reported herein can be applied to a diverse set of branched alkyl substrates that are generally not well tolerated in the other two types of Ir-catalyzed allylation.
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Affiliation(s)
- Tian-Yuan Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kun Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yu-Rong Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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26
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Sarkar R, Mukherjee S. Iridium-catalyzed enantioselective olefinic C(sp 2)-H allylic alkylation. Chem Sci 2021; 12:3070-3075. [PMID: 34164076 PMCID: PMC8179414 DOI: 10.1039/d0sc06208a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/11/2021] [Accepted: 01/14/2021] [Indexed: 12/14/2022] Open
Abstract
The first iridium-catalyzed enantioselective olefinic C(sp2)-H allylic alkylation is developed in cooperation with Lewis base catalysis. This reaction, catalyzed by cinchonidine and an in situ generated cyclometalated Ir(i)/phosphoramidite complex, makes use of the latent enolate character of an α,β-unsaturated carbonyl compound, namely coumalate ester, to introduce an allyl group at its α-position in a branched-selective manner in moderate to good yield with good to excellent enantioselectivities (up to 98 : 2 er).
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Affiliation(s)
- Rahul Sarkar
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
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27
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Li Y, Chen P, Chen ZC, Du W, Ouyang Q, Chen YC. Palladium-catalysed oxidative nucleophilic allylation between alkenes and activated ketimines. Org Chem Front 2021. [DOI: 10.1039/d1qo00505g] [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
A direct linear regioselective oxidative allylation reaction between alkenes and activated ketimines has been developed by using a Pd(OAc)2/2,6-dimethyl-1,4-benzoquinone system.
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Affiliation(s)
- Yue Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Peng Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhi-Chao Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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28
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Murru S, Mokar BD, Bista R, Harakat D, Le Bras J, Fronczek F, Nicholas KM, Srivastava RS. Copper-catalyzed asymmetric allylic C–H amination of alkenes using N-arylhydroxylamines. Org Chem Front 2021. [DOI: 10.1039/d1qo00223f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The first Cu-catalyzed asymmetric allylic C–H amination of alkenes with N-aryl hydroxylamines has been developed. Metal-complexes isolation, ESI-MS analysis and the DFT calculations provided key insights on mechanistic pathway.
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Affiliation(s)
- Siva Murru
- Chemistry Program
- School of Sciences
- University of Louisiana at Monroe
- Louisiana 71209
- USA
| | - Bhanudas D. Mokar
- Department of Chemistry
- University of Louisiana at Lafayette
- Louisiana 70504
- USA
| | - Ramesh Bista
- Chemistry Program
- School of Sciences
- University of Louisiana at Monroe
- Louisiana 71209
- USA
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims – UMR 7312 CNRS-Université de Reims Champagne-Ardenne UFR des Sciences Exactes et Naturelles
- 51687 REIMS Cedex 2
- France
| | - Jean Le Bras
- Institut de Chimie Moléculaire de Reims – UMR 7312 CNRS-Université de Reims Champagne-Ardenne UFR des Sciences Exactes et Naturelles
- 51687 REIMS Cedex 2
- France
| | - Frank Fronczek
- Department of Chemistry
- Louisiana State University
- Baton Rouge 70803
- USA
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29
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Sieber JD, Klake RK, Agrawal T, Ho DB, Gargaro SL, Collins S, Edwards MD. Cross‐Coupling of Allenamides and
C
‐Based Nucleophiles by Pd‐Catalyzed Allylic Alkylation. Isr J Chem 2020. [DOI: 10.1002/ijch.202000096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Joshua D. Sieber
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
| | - Raphael K. Klake
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
| | - Toolika Agrawal
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
| | - Dang Binh Ho
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
| | - Samantha L. Gargaro
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
| | - Stephen Collins
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
| | - Mytia D. Edwards
- Department of Chemistry Virginia Commonwealth University 1001 West Main Street Richmond VA 23284-3208 USA
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30
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Mohammadkhani L, Heravi MM. Applications of Transition-Metal-Catalyzed Asymmetric Allylic Substitution in Total Synthesis of Natural Products: An Update. CHEM REC 2020; 21:29-68. [PMID: 33206466 DOI: 10.1002/tcr.202000086] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 01/14/2023]
Abstract
Metal-catalyzed asymmetric allylic substitution (AAS) reaction is one of the most synthetically useful reactions catalyzed by metal complexes for the formation of carbon-carbon and carbon-heteroatom bonds. It comprises the substitution of allylic substrates with a wide range of nucleophiles or SN 2'-type allylic substitution, which results in the formation of the above-mentioned bonds with high levels of enantioselective induction. AAS reaction tolerates a broad range of functional groups, thus has been successfully applied in the asymmetric synthesis of a wide range of optically pure compounds. This reaction has been extensively used in the total synthesis of several complex molecules, especially natural products. In this review, we try to highlight the applications of metal (Pd, Ir, Mo, or Cu)-catalyzed AAS reaction in the total synthesis of the biologically active natural products, as a key step, updating the subject from 2003 till date.
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Affiliation(s)
- Leyla Mohammadkhani
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
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31
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Wang Y, Zhang WY, Xie JH, Yu ZL, Tan JH, Zheng C, Hou XL, You SL. Enantioselective Desymmetrization of Bisphenol Derivatives via Ir-Catalyzed Allylic Dearomatization. J Am Chem Soc 2020; 142:19354-19359. [PMID: 33140959 DOI: 10.1021/jacs.0c09638] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Spirocyclic hexadienones with multiple stereogenic centers are frequently found in natural products but remain challenging targets to synthesize. Herein, we report the enantioselective desymmetrization of bisphenol derivatives via Ir-catalyzed allylic dearomatization reactions, affording spirocyclic hexadienone derivatives with up to three contiguous stereogenic centers in good yields (up to 90%) and excellent enantioselectivity (up to 99% ee). The high efficiency of this reaction is exemplified by the short reaction time (30 min), low catalyst loading (down to 0.2 mol %), and ability to perform the reaction on a gram-scale. The total syntheses of (+)-tatanan B and (+)-tatanan C were also realized using this Ir-catalyzed allylic dearomatization reaction as a key step.
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Affiliation(s)
- Ye Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Wen-Yun Zhang
- 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
| | - Jia-Hao Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zong-Lun Yu
- 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
| | - Jia-Hao Tan
- 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
| | - Chao Zheng
- 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
| | - Xue-Long Hou
- 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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32
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Ding S, Motokura K. Heterogeneous Supported Palladium Catalysts for Liquid-Phase Allylation of Nucleophiles. Chempluschem 2020; 85:2428-2437. [PMID: 33155770 DOI: 10.1002/cplu.202000605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/17/2020] [Indexed: 11/12/2022]
Abstract
In recent years, palladium-catalyzed allylation has become the focus of much research. However, conventional homogeneous Pd catalysts face problems regarding their recovery, reuse, and cost, especially with respect to green chemistry principles. Herein, we present an overview of the development of catalytic allylation with various heterogeneous Pd catalysts, because they can be easily and conveniently recovered and reused. We also emphasize the use of different solid supports such as polymers, silica, and other hybrid supports to inspire future research in this promising field. Moreover, the unique effects of support surfaces for enhancing catalysis by immobilized heterogeneous Pd species are introduced.
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Affiliation(s)
- Siming Ding
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan
| | - Ken Motokura
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan.,PRESTO, Japan Science and Technology Agency (JST), Saitama, 332-0012, Japan
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33
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Chakrabarty A, Mukherjee S. Iridium-Catalyzed Enantioselective α-Allylic Alkylation of Amides Using Vinyl Azide as Amide Enolate Surrogate. Org Lett 2020; 22:7752-7756. [PMID: 32936647 DOI: 10.1021/acs.orglett.0c03002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Among the unstabilized enolates used as nucleophiles in iridium-catalyzed asymmetric allylic alkylation reactions, amide enolates are the least explored. Vinyl azides are now employed as amide enolate surrogates in Ir-catalyzed asymmetric allylic alkylation with branched allylic alcohols as the allylic electrophile. Competing reaction pathways are suppressed through the systematic tuning of the steric and electronic properties of vinyl azide to effect the α-allylic alkylation of secondary acetamides with high atom economy, exclusive branched selectivity, and mostly excellent enantioselectivity.
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Affiliation(s)
- Aditya Chakrabarty
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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34
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Sun C, Qi X, Min XL, Bai XD, Liu P, He Y. Asymmetric allylic substitution-isomerization to axially chiral enamides via hydrogen-bonding assisted central-to-axial chirality transfer. Chem Sci 2020; 11:10119-10126. [PMID: 34094274 PMCID: PMC8162293 DOI: 10.1039/d0sc02828b] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Axially chiral enamides bearing a N–C axis have been recently studied and were proposed to be valuable chiral building blocks, but a stereoselective synthesis has not been achieved. Here, we report the first enantioselective synthesis of axially chiral enamides via a highly efficient, catalytic approach. In this approach, C(sp2)–N bond formation is achieved through an iridium-catalyzed asymmetric allylation, and then in situ isomerization of the initial products through an organic base promoted 1,3-H transfer, leading to the enamide products with excellent central-to-axial transfer of chirality. Computational and experimental studies revealed that the 1,3-H transfer occurs via a stepwise deprotonation/re-protonation pathway with a chiral ion-pair intermediate. Hydrogen bonding interactions with the enamide carbonyl play a significant role in promoting both the reactivity and stereospecificity of the stepwise 1,3-H transfer. The mild and operationally simple formal N-vinylation reaction delivered a series of configurationally stable axially chiral enamides with good to excellent yields and enantioselectivities. Axially chiral enamides bearing a N–C axis have been recently studied and were proposed to be valuable chiral building blocks, but a stereoselective synthesis has not been achieved.![]()
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Affiliation(s)
- Chao Sun
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
| | - Xiaotian Qi
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
| | - Xiao-Long Min
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
| | - Xue-Dan Bai
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA .,Department of Chemical and Petroleum Engineering, University of Pittsburgh Pittsburgh Pennsylvania 15261 USA
| | - Ying He
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
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35
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36
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Trost BM, Kalnmals CA, Ramakrishnan D, Ryan MC, Smaha RW, Parkin S. Ruthenium-Catalyzed Asymmetric Allylic Alkylation of Isatins. Org Lett 2020; 22:2584-2589. [PMID: 32202122 DOI: 10.1021/acs.orglett.0c00504] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A new ruthenium-based catalytic system for branched-selective asymmetric allylic alkylation is disclosed and applied to the synthesis of chiral isatin derivatives. The catalyst, which is generated in situ from commercially available CpRu(MeCN)3PF6 and a BINOL-derived phosphoramidite, is both highly active (TON up to 180) and insensitive to air and moisture. Additionally, the N-alkylated isatins accessible using this methodology are versatile building blocks that are readily transformed into chiral analogs of achiral drug molecules.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | | | - Divya Ramakrishnan
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Michael C Ryan
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Rebecca W Smaha
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
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Han JF, Guo P, Zhang XG, Liao JB, Ye KY. Recent advances in cobalt-catalyzed allylic functionalization. Org Biomol Chem 2020; 18:7740-7750. [PMID: 32940308 DOI: 10.1039/d0ob01581d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Unlike many other state-of-the-art transition-metal-catalyzed allylic substitutions, cobalt-catalyzed allylic substitution has received much less attention from synthetic chemists for a long time despite the fact that cobalt is an earth-abundant, low-cost and thus much more sustainable option as either a reagent or a catalyst in organic synthesis. Recently, there has been an upsurge in the use of cobalt catalysis in allylic functionalization reactions, including allylic substitution, nucleophilic allylation, and Heck-type allylic functionalization, to construct synthetically significant building blocks featuring a double bond available for diverse downstream synthetic manipulations. This review highlights the current development of cobalt catalysis in allylic functionalization with an in-depth discussion of the reaction scope and mechanistic insights.
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Affiliation(s)
- Jun-Fa Han
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
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Abstract
Catalytic allylation reactions are important methodologies to produce fine chemicals and synthetic building blocks. This review discloses state-of-the-art photocatalyzed allylation methodologies, their reaction mechanisms, and synthetic applications.
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Trost BM, Kalnmals CA. Annulative Allylic Alkylation Reactions between Dual Electrophiles and Dual Nucleophiles: Applications in Complex Molecule Synthesis. Chemistry 2019; 26:1906-1921. [DOI: 10.1002/chem.201903961] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/29/2019] [Indexed: 01/14/2023]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry Stanford University 333 Campus Drive Stanford CA 94305 USA
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40
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Zheng DS, Zhao ZL, Gu Q, You SL. Ir-Catalyzed Intermolecular Asymmetric Allylic Alkylation of β-Tetralones. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong-Song Zheng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Zheng-Le Zhao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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41
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Shen J, Gao Q, Wang G, Tong M, Chen L, Xu S. Cu‐NHC‐Catalyzed Enantioselective Conjugate Silyl addition to Indol‐1‐ylacrylate Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201903570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun‐Jian Shen
- State Key Laboratory for Oxo Synthesis and Selective OxidationCentre for Excellence in Molecular SynthesisSuzhou Research InstituteLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 China
| | - Qian Gao
- State Key Laboratory for Oxo Synthesis and Selective OxidationCentre for Excellence in Molecular SynthesisSuzhou Research InstituteLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 China
| | - Guangzhu Wang
- State Key Laboratory for Oxo Synthesis and Selective OxidationCentre for Excellence in Molecular SynthesisSuzhou Research InstituteLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 China
| | - Min Tong
- State Key Laboratory for Oxo Synthesis and Selective OxidationCentre for Excellence in Molecular SynthesisSuzhou Research InstituteLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 China
| | - Lili Chen
- State Key Laboratory for Oxo Synthesis and Selective OxidationCentre for Excellence in Molecular SynthesisSuzhou Research InstituteLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective OxidationCentre for Excellence in Molecular SynthesisSuzhou Research InstituteLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 China
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Cai A, Kleij AW. Regio‐ and Enantioselective Preparation of Chiral Allylic Sulfones Featuring Elusive Quaternary Stereocenters. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Aijie Cai
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spain
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Cai A, Kleij AW. Regio- and Enantioselective Preparation of Chiral Allylic Sulfones Featuring Elusive Quaternary Stereocenters. Angew Chem Int Ed Engl 2019; 58:14944-14949. [PMID: 31394028 DOI: 10.1002/anie.201908318] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/08/2019] [Indexed: 12/19/2022]
Abstract
We describe here the first general asymmetric synthesis of sterically encumbered α,α-disubstituted allylic sulfones via Pd-catalyzed allylic substitution. The design and application of a new and highly efficient phosphoramidite ligand (L10) proved to be crucial, and a wide variety of challenging allylic sulfones featuring quaternary stereocenters could be obtained in good yields and with good to excellent levels of regio- and enantioselectivities under attractive process conditions. The developed methodology employs easily accessible chemical feedstock including racemic allylic precursors and sodium sulfinates. The utility of the method is further demonstrated by the synthesis of the sesquiterpene (-)-Agelasidine A.
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Affiliation(s)
- Aijie Cai
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science & Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Arjan W Kleij
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science & Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
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Wang Y, Deng LF, Zhang X, Niu D. Catalytic Asymmetric Synthesis of α-Tetrasubstituted α-Trifluoromethyl Homoallylic Amines by Ir-Catalyzed Umpolung Allylation of Imines. Org Lett 2019; 21:6951-6956. [PMID: 31418581 DOI: 10.1021/acs.orglett.9b02550] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yingwei Wang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Li-Fan Deng
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Xia Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
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Cao CG, He B, Fu Z, Niu D. Synthesis of β3-Amino Esters by Iridium-Catalyzed Asymmetric Allylic Alkylation Reaction. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00280] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Chao-Guo Cao
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, P. R. China
| | - Bin He
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, P. R. China
| | - Zhengyan Fu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, P. R. China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, P. R. China
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46
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Sempere Y, Alfke JL, Rössler SL, Carreira EM. Morpholine Ketene Aminal as Amide Enolate Surrogate in Iridium‐Catalyzed Asymmetric Allylic Alkylation. Angew Chem Int Ed Engl 2019; 58:9537-9541. [DOI: 10.1002/anie.201903090] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 01/24/2023]
Affiliation(s)
- Yeshua Sempere
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Jan L. Alfke
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Simon L. Rössler
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Erick M. Carreira
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
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47
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Sarkar R, Mukherjee S. Enantioselective Direct Vinylogous Allylic Alkylation of 4-Methylquinolones under Iridium Catalysis. Org Lett 2019; 21:5315-5320. [PMID: 31247781 DOI: 10.1021/acs.orglett.9b01934] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The first enantioselective vinylogous allylic alkylation of 4-methylquinolones has been developed. This iridium-catalyzed reaction introduces an allyl group at the γ-position of 4-methyl-2-quinolones with exclusive branched selectivity and an excellent level of enantioselectivity. This in turn allows for the enantioselective synthesis of γ-allylquinolines and related nitrogenous heterocycles. This is the first application of 4-methylquinolones in an enantioselective transformation.
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Affiliation(s)
- Rahul Sarkar
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
| | - Santanu Mukherjee
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
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48
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Xiong W, Xu G, Yu X, Tang W. P-Chiral Monophosphorus Ligands for Asymmetric Copper-Catalyzed Allylic Alkylation. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00194] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenrui Xiong
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200037, China
| | - Guangqing Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xinhong Yu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200037, China
| | - Wenjun Tang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200037, China
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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49
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Sempere Y, Alfke JL, Rössler SL, Carreira EM. Morpholine Ketene Aminal as Amide Enolate Surrogate in Iridium‐Catalyzed Asymmetric Allylic Alkylation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yeshua Sempere
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Jan L. Alfke
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Simon L. Rössler
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Erick M. Carreira
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
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50
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Yue BB, Deng Y, Zheng Y, Wei K, Yang YR. Iridium-Catalyzed Enantioselective Allylation of Aryl Enamides and Enecarbamates. Org Lett 2019; 21:2449-2452. [PMID: 30896182 DOI: 10.1021/acs.orglett.9b00764] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Aromatic enamide and enecarbamate as a novel type of nucleophile in the asymmetric allylation of branched, racemic allylic alcohols to give homoallylic ketones has been described. Enabled by Carreira's chiral Ir (P, olefin) complex, the reactions proceed in good yields with excellent enantioselectivities.
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Affiliation(s)
- Bei-Bei Yue
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yi Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , China
| | - Yu Zheng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Kun Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , China
| | - Yu-Rong Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , China
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