1
|
Sedillo K, Fan F, Knowles RR, Doyle AG. Cooperative Phosphine-Photoredox Catalysis Enables N-H Activation of Azoles for Intermolecular Olefin Hydroamination. J Am Chem Soc 2024; 146:20349-20356. [PMID: 38985548 PMCID: PMC11268998 DOI: 10.1021/jacs.4c05881] [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] [Indexed: 07/12/2024]
Abstract
Catalytic intermolecular olefin hydroamination is an enabling synthetic strategy that offers direct and atom-economical access to a variety of nitrogen-containing compounds from abundant feedstocks. However, despite numerous advances in catalyst design and reaction development, hydroamination of N-H azoles with unactivated olefins remains an unsolved problem in synthesis. We report a dual phosphine and photoredox catalytic protocol for the hydroamination of numerous structurally diverse and medicinally relevant N-H azoles with unactivated olefins. Hydroamination proceeds with high anti-Markovnikov regioselectivity and N-site selectivity. The mild conditions and high functional group tolerance of the reaction permit the rapid construction of molecular complexity and late-stage functionalization of bioactive compounds. N-H bond activation is proposed to proceed via polar addition of the N-H azole to a phosphine radical cation, followed by P-N α-scission from a phosphoranyl radical intermediate. Reactivity and N-site selectivity are classified by azole N-H BDFE and nitrogen-centered radical spin density, respectively, which can serve as a useful predictive aid in extending the reaction to unseen azoles.
Collapse
Affiliation(s)
- Kassandra Sedillo
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Flora Fan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Robert R. Knowles
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Abigail G. Doyle
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| |
Collapse
|
2
|
Sirignano M, D’Amato A, Costabile C, Mariconda A, Crispini A, Scarpelli F, Longo P. Hydroamination of alkynes catalyzed by NHC-Gold(I) complexes: the non-monotonic effect of substituted arylamines on the catalyst activity. Front Chem 2023; 11:1260726. [PMID: 38124702 PMCID: PMC10731675 DOI: 10.3389/fchem.2023.1260726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/24/2023] [Indexed: 12/23/2023] Open
Abstract
Imines are valuable key compounds for synthesizing several nitrogen-containing molecules used in biological and industrial fields. They have been obtained, as highly regioselective Markovnikov products, by reacting several alkynes with arylamines in the presence of three new N-Heterocyclic carbene gold(I) complexes (3b, 4b, and 6b) together with the known 1-2b and 7b gold complexes as well as silver complexes 1-2a. Gold(I) complexes were investigated by means of NMR, mass spectroscopy, elemental analysis, and X-ray crystallographic studies. Accurate screening of co-catalysts and solvents led to identifying the best reaction conditions and the most active catalyst (2b) in the model hydroamination of phenylacetylene with aniline. Complex 2b was then tested in the hydroamination of alkynes with a wide variety of arylamines yielding a lower percentage of product when arylamines with both electron-withdrawing and electron-donating substituents were involved. Computational studies on the rate-determining step of hydroamination were conducted to shed light on the significantly different yields observed when reacting arylamines with different substituents.
Collapse
Affiliation(s)
- Marco Sirignano
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Fisciano, Italy
| | - Assunta D’Amato
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Fisciano, Italy
| | - Chiara Costabile
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Fisciano, Italy
| | | | - Alessandra Crispini
- Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata Di Rende, Italy
| | - Francesca Scarpelli
- Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata Di Rende, Italy
| | - Pasquale Longo
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Fisciano, Italy
| |
Collapse
|
3
|
Yamakawa K, Sakamoto K, Nishimura T. Iridium-catalyzed asymmetric addition of imides to alkenes. Chem Commun (Camb) 2023; 59:12871-12874. [PMID: 37817678 DOI: 10.1039/d3cc04406h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Enantioselective addition of an imide N-H bond to alkenes was realized by use of a cationic iridium catalyst. Bulky diphosphine ligands such as DTBM-segphos, DTBM-MeO-biphep, and DTBM-binap were indispensable for the reaction. A variety of styrene derivatives, allylsilanes, and norbornene were good substrates to give the corresponding chiral adducts with high enantioselectivity.
Collapse
Affiliation(s)
- Kentaro Yamakawa
- Department of Chemistry, Graduate School of Science, Osaka MetropolitanUniversity, Sumiyoshi, Osaka 558-8585, Japan.
| | - Kana Sakamoto
- Department of Chemistry, Graduate School of Science, Osaka MetropolitanUniversity, Sumiyoshi, Osaka 558-8585, Japan.
| | - Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Osaka MetropolitanUniversity, Sumiyoshi, Osaka 558-8585, Japan.
| |
Collapse
|
4
|
Ma S, Hartwig JF. Progression of Hydroamination Catalyzed by Late Transition-Metal Complexes from Activated to Unactivated Alkenes. Acc Chem Res 2023; 56:1565-1577. [PMID: 37272995 DOI: 10.1021/acs.accounts.3c00141] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
ConspectusCatalytic intermolecular hydroamination of alkenes is an atom- and step-economical method for the synthesis of amines, which have important applications as pharmaceuticals, agrochemicals, catalysts, and materials. However, hydroaminations of alkenes in high yield with high selectivity are challenging to achieve because these reactions often lack a thermodynamic driving force and often are accompanied by side reactions, such as alkene isomerization, telomerization, and oxidative amination. Consequently, early examples of hydroamination were generally limited to the additions of N-H bonds to conjugated alkenes or strained alkenes, and the catalytic hydroamination of unactivated alkenes with late transition metals has only been disclosed recently. Many classes of catalysts, including early transition metals, late transition metals, rare-earth metals, acids, and photocatalysts, have been reported for catalytic hydroamination. Among them, late transition-metal complexes possess several advantages, including their relative ease of handling and their high compatibility of substrates containing polar or sensitive functional groups.This Account describes the progression in our laboratory of hydroaminations catalyzed by late transition-metal complexes from the initial additions of N-H bonds to activated alkenes to the more recent additions to unactivated alkenes. Our developments include the Markovnikov and anti-Markovnikov hydroamination of vinylarenes with palladium, rhodium, and ruthenium, the hydroamination of dienes and trienes with nickel and palladium, the hydroanimation of bicyclic strained alkenes with neutral iridium, and the hydroamination of unactivated terminal and internal alkenes with cationic iridium and ruthenium. Enantioselective hydroaminations of these classes of alkenes to form enantioenriched, chiral amines also have been developed.Mechanistic studies have elucidated the elementary steps and the turnover-limiting steps of these catalytic reactions. The hydroamination of conjugated alkenes catalyzed by palladium, rhodium, nickel, and ruthenium occurs by turnover-limiting nucleophilic attack of the amine on a coordinated benzyl, allyl, alkene, or arene ligand. On the other hand, the hydroamination of unconjugated alkenes catalyzed by ruthenium and iridium occurs by turnover-limiting migratory insertion of the alkene into a metal-nitrogen bond. In addition, pathways for the formation of side products, including isomeric alkenes and enamines, have been identified during our studies. During studies on enantioselective hydroamination, the reversibility of the hydroamination has been shown to erode the enantiopurity of the products. Based on our mechanistic understandings, new generations of catalysts that promote catalytic hydroaminations with higher rates, chemoselectivity, and enantioselectivity have been developed. We hope that our discoveries and mechanistic insights will facilitate the further development of catalysts that promote selective, practical, and efficient hydroamination of alkenes.
Collapse
Affiliation(s)
- Senjie Ma
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| |
Collapse
|
5
|
Wang R, Wang Y, Ding R, Staub PB, Zhao CZ, Liu P, Wang YM. Designed Iron Catalysts for Allylic C-H Functionalization of Propylene and Simple Olefins. Angew Chem Int Ed Engl 2023; 62:e202216309. [PMID: 36622129 PMCID: PMC9974915 DOI: 10.1002/anie.202216309] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/17/2022] [Accepted: 01/09/2023] [Indexed: 01/10/2023]
Abstract
Propylene gas is produced worldwide by steam cracking on million-metric-ton scale per year. It serves as a valuable starting material for π-bond functionalization but is rarely applied in transition metal-catalyzed allylic C-H functionalization for fine chemical synthesis. Herein, we report that a newly-developed cationic cyclopentadienyliron dicarbonyl complex allows for the conversion of propylene to its allylic C-C bond coupling products under catalytic conditions. This approach was also found applicable to the allylic functionalization of simple α-olefins with distinctive branched selectivity. Experimental and computational mechanistic studies supported the allylic deprotonation of the metal-coordinated alkene as the turnover-limiting step and led to insights into the multifaceted roles of the newly designed ligand in promoting allylic C-H functionalization with enhanced reactivity and stereoselectivity.
Collapse
Affiliation(s)
- Ruihan Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Yidong Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Ruiqi Ding
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Parker B Staub
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Christopher Z Zhao
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Yi-Ming Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| |
Collapse
|
6
|
Miao H, Guan M, Xiong T, Zhang G, Zhang Q. Cobalt-Catalyzed Enantioselective Hydroamination of Arylalkenes with Secondary Amines. Angew Chem Int Ed Engl 2023; 62:e202213913. [PMID: 36342476 DOI: 10.1002/anie.202213913] [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: 09/20/2022] [Indexed: 11/09/2022]
Abstract
Catalytic asymmetric hydroamination of alkenes with Lewis basic amines is of great interest but remains a challenge in synthetic chemistry. Here, we developed a Co-catalyzed asymmetric hydroamination of arylalkenes directly using commercially accessible secondary amines. This process enables the efficient access to valuable α-chiral tertiary amines in good to excellent yields and enantioselectivities. Mechanistic studies suggest that the reaction includes a CoH-mediated hydrogen atom transfer (MHAT) with arylalkenes, followed by a pivotal catalyst controlled SN 2-like pathway between in situ generated electrophilic cationic alkylcobalt(IV) species and free amines. This radical-polar crossover strategy not only provides a straightforward and alternative approach for the synthesis of enantioenriched α-tertiary amines, but also underpins the substantial opportunities in developing asymmetric radical functionalization of alkenes with various free nucleophiles in oxidative MHAT catalysis.
Collapse
Affiliation(s)
- Huanran Miao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Meihui Guan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Tao Xiong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Ge Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, 130024, Changchun, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
| |
Collapse
|
7
|
Li L, Ren J, Zhou J, Wu X, Shao Z, Yang X, Qian D. Enantioselective synthesis of N-alkylindoles enabled by nickel-catalyzed C-C coupling. Nat Commun 2022; 13:6861. [PMID: 36369422 PMCID: PMC9652415 DOI: 10.1038/s41467-022-34615-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 10/28/2022] [Indexed: 11/13/2022] Open
Abstract
Enantioenriched N-alkylindole compounds, in which nitrogen is bound to a stereogenic sp3 carbon, are an important entity of target molecules in the fields of biological, medicinal, and organic chemistry. Despite considerable efforts aimed at inventing methods for stereoselective indole functionalization, straightforward access to a diverse range of chiral N-alkylindoles in an intermolecular catalytic fashion from readily available indole substrates remains an ongoing challenge. In sharp contrast to existing C-N bond-forming strategies, here, we describe a modular nickel-catalyzed C-C coupling protocol that couples a broad array of N-indolyl-substituted alkenes with aryl/alkenyl/alkynyl bromides to produce chiral N-alkylindole adducts in single regioisomeric form, in up to 91% yield and 97% ee. The process is amenable to proceed under mild conditions and exhibit broad scope and high functional group compatibility. Utility is highlighted through late-stage functionalization of natural products and drug molecules, preparation of chiral building blocks.
Collapse
Affiliation(s)
- Lun Li
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Jiangtao Ren
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China ,Southwest United Graduate School, Kunming, China
| | - Jingjie Zhou
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Xiaomei Wu
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Zhihui Shao
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China ,Southwest United Graduate School, Kunming, China
| | - Xiaodong Yang
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| | - Deyun Qian
- grid.440773.30000 0000 9342 2456Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
| |
Collapse
|
8
|
Bhatt S, Wang YN, Pham H, Hull KL. Palladium-Catalyzed Oxidative Amination of α-Olefins with Indoles. Org Lett 2022; 24:5746-5750. [PMID: 35905441 PMCID: PMC9807023 DOI: 10.1021/acs.orglett.2c02190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Herein we report the use of indoles, one of the most common nitrogen-containing heterocycles in FDA-approved drugs, as nucleophiles in the Pd-catalyzed aza-Wacker reaction. This N-functionalization of indoles is a Markovnikov selective olefin functionalization of simple alkenes using catalytic Pd(NPhth)2(PhCN)2 and O2 as the terminal oxidant in the presence of catalytic Bu4NBr. Various substituted indoles and alkenes are found to participate; 21 examples are presented with yields ranging from 41 to 97% isolated yield. Additionally, lactams and oxazolidinones are shown to participate under the reaction conditions. Mechanistic investigations suggest that the phthalimide ligand and Bu4NBr additive slow undesired side reactions: indole decomposition and olefin isomerization, respectively.
Collapse
|
9
|
Yamun P, Philip RM, Anilkumar G. Nickel catalyzed hydroamination reactions: An overview. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
10
|
Ho AT, Ensign SC, Vanable EP, Portillo D, Humke JN, Kortman GD, Hull KL. Rhodium-/Iridium-Catalyzed Hydroamination for the Synthesis of 1,2-, 1,3-, or 1,4-Diamines. ACS Catal 2022; 12:8331-8340. [PMID: 37143789 PMCID: PMC10156092 DOI: 10.1021/acscatal.2c01835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An Ir-catalyzed regioselective hydroamination of allyl amines using aryl amines and catalyst-controlled regiodivergent hydroamination of allylic and homoallylic amines with aniline nucleophiles are reported. The directed hydroamination reactions afford a variety of 1,2-, 1,3-, and 1,4-diamines in good to excellent yields and high regio- and chemoselectivities. Mechanistic investigations suggests that the reactions are proceeding through an oxidative addition into the ArHN-H bond and that the observed regioselectivity is due to the selective formation of a 5- or 6-membered metalacyclic intermediate, depending on the catalyst employed.
Collapse
Affiliation(s)
- An T. Ho
- Department of Chemistry, University of Texas at Austin, 100 East 24th Street, Austin, Texas 78741, United States
| | - Seth C. Ensign
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Evan P. Vanable
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - David Portillo
- Department of Chemistry, University of Texas at Austin, 100 East 24th Street, Austin, Texas 78741, United States
| | - Jenna N. Humke
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Gregory D. Kortman
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Kami L. Hull
- Department of Chemistry, University of Texas at Austin, 100 East 24th Street, Austin, Texas 78741, United States
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| |
Collapse
|
11
|
|
12
|
Han W. Factors Promoting Alkene Migratory Insertion into Metal-nitrogen Bond During Hydroamination in Recent Studies. MINI-REV ORG CHEM 2022. [DOI: 10.2174/1570193x18666210909110109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
Migratory insertion is a fundamental organometallic transformation that enables the functionalization
of an unsaturated bond. Recent reports on catalytic hydroamination provide evidence
that supports an intermolecular migratory insertion pathway featuring alkene insertion into metalnitrogen
(M-N) bonds. This article presents factors influencing the rate of migratory insertion in latetransition
metal-catalyzed hydroamination, including steric and electronic effects from ligands, alkenes,
and metal centers, along with stabilization from coordinated amine intermediates and ordered
transition states.
Collapse
Affiliation(s)
- Wenlai Han
- Department of Chemistry, Carleton College, Northfield, Minnesota 55057, United States
| |
Collapse
|
13
|
Holman SDL, Wills AG, Fazakerley NJ, Poole DL, Coe DM, Berlouis LA, Reid M. Electrochemical Synthesis of Isoxazolines: Method and Mechanism. Chemistry 2022; 28:e202103728. [PMID: 35076117 PMCID: PMC9303936 DOI: 10.1002/chem.202103728] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Indexed: 11/11/2022]
Abstract
An electrochemical method for the green and practical synthesis of a broad range of substituted isoxazoline cores is presented. Both aryl and more challenging alkyl aldoximes are converted to the desired isoxazoline in an electrochemically enabled regio‐ and diastereoselective reaction with electron‐deficient alkenes. Additionally, in‐situ reaction monitoring methods compatible with electrochemistry equipment have been developed in order to probe the reaction pathway. Supporting analyses from kinetic (time‐course) modelling and density functional theory support a stepwise, radical‐mediated mechanism, and discounts hypothesised involvement of closed shell [3+2] cycloaddition pathways.
Collapse
Affiliation(s)
- Samuel D. L. Holman
- WestCHEM Department of Pure and Applied Chemistry University of Strathclyde Royal College Building 204 George Street Glasgow G1 1XW UK
- GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Alfie G. Wills
- WestCHEM Department of Pure and Applied Chemistry University of Strathclyde Royal College Building 204 George Street Glasgow G1 1XW UK
- GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Neal J. Fazakerley
- GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Darren L. Poole
- GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Diane M. Coe
- GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY UK
| | - Leonard A. Berlouis
- WestCHEM Department of Pure and Applied Chemistry University of Strathclyde Royal College Building 204 George Street Glasgow G1 1XW UK
| | - Marc Reid
- WestCHEM Department of Pure and Applied Chemistry University of Strathclyde Royal College Building 204 George Street Glasgow G1 1XW UK
| |
Collapse
|
14
|
Huang WB, Yang M, He LN. Metal-Free Hydroxymethylation of Indole Derivatives with Formic Acid as an Alternative Way to Indirect Utilization of CO 2. J Org Chem 2022; 87:3775-3779. [PMID: 35084854 DOI: 10.1021/acs.joc.1c02831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The selective N-alkylation of indole substrates remains an ongoing research challenge for the relative attenuated nucleophilicity toward nitrogen. Herein, we developed the hydroxymethylation of indole derivatives to afford N-alkylated indole products with formic acid. This metal-free process was promoted by the organic base 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) using phenylsilane as the reductant under mild conditions. Besides, this strategy represents an alternative way for indirect utilization of CO2, considering the facile hydrogenation of CO2 to produce HCOOH.
Collapse
Affiliation(s)
- Wen-Bin Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Meng Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
15
|
Wang C, Ji X, Deng GJ, Huang H. Copper-catalyzed three-component N-alkylation of quinazolinones and azoles. Org Biomol Chem 2022; 20:1200-1204. [DOI: 10.1039/d1ob02333k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu-catalyzed three-component N-alkylated coupling reaction of N-heteroarenes with methyl ketones and one carbon source has been developed. Using methyl ketones as alkylation reagent and DMPA (N,N’-dimethylpropionamide) as one carbon...
Collapse
|
16
|
Li X, Wang W, He Q, Liu Y, Fan R. Synthesis of chiral N-alkylated indoles through replacement of aniline nitrogen by natural amino acids. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
|
17
|
Gashaw A, Debeli DK, Chemeda M. Asymmetric C-H and N-H functionalization of Indoles involving Central Chirality via Chiral Phosphoric Acid Catalysis. MINI-REV ORG CHEM 2021. [DOI: 10.2174/1570193x18666211006162836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
The C-H and N-H functionalization of indoles is an interesting area of research that has a useful impact on organic synthesis due to the availability of chiral indole scaffolds in the discovery of drugs, synthetic bioactive compounds, and natural products. The chiral phosphoric acid catalysts (CPAs) have proven to be a powerful and versatile class of enantioselective organocatalysts. Many asymmetric syntheses of organic compounds have been carried out with these catalysts in C–C and C-N bond formation reactions, and great progress has been reported. By 2011, several reviews were published covering some important topics and recent achievements in this field. Therefore, in this review, the most recent advances, research breakthroughs with key examples involving mechanisms of CPA-catalyzed C-H and N-H functionalization of indoles to form central chirality via Friedel Crafts, Michael type, and rearrangement reactions were reviewed and reported.
Collapse
Affiliation(s)
- Alemayehu Gashaw
- Bule Hora University, Department of Chemistry, Bule Hora, Ethiopia
| | - Dereje Kebebew Debeli
- Addis Ababa Science and Technology University (AASTU), Department of Chemical Engineering, Addis Ababa, Ethiopia
| | - Meseret Chemeda
- Bule Hora University, Department of Chemistry, Bule Hora, Ethiopia
| |
Collapse
|
18
|
Nie Z, Lv H, Li H, Su M, Yang T, Luo W, Liu Q, Guo C. Synthesis of Terminal
N
‐Vinylazoles from Aromatic Aldehydes, DMSO, and Azoles Based DMSO as Terminal Carbon Synthon. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100663] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhiwen Nie
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Huifang Lv
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Hui Li
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Miaodong Su
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Tonglin Yang
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Weiping Luo
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| |
Collapse
|
19
|
Sukrutha KP, Swaroop TR, Preetham R, Lokanath NK, Rangappa KS, Sadashiva MP. A convenient way for alkylation of amines using xanthate esters. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1933037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
20
|
Hollenhorst H, McDonald R, Ferguson M, Turculet L. Synthesis of Rhodium and Iridium Complexes Supported by Bis(indolylphosphino)silyl Pincer Ligation: Competitive N–H and C–H Bond Activation by an Ir(I) Species. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Helia Hollenhorst
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michael Ferguson
- X-ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Laura Turculet
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| |
Collapse
|
21
|
Yang D, Huang H, Zhang H, Yin LM, Song MP, Niu JL. Regioselective Intermolecular Hydroamination of Unactivated Alkenes: “Co–H” Enabled Remote Functionalization. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dandan Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - He Zhang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Li-Ming Yin
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| |
Collapse
|
22
|
Nie XD, Han XL, Sun JT, Si CM, Wei BG, Lin GQ. Nickel-Catalyzed Regioselective Hydroamination of Ynamides with Secondary Amines. J Org Chem 2021; 86:3433-3443. [DOI: 10.1021/acs.joc.0c02807] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao-Di Nie
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Xiao-Li Han
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Jian-Ting Sun
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chang-Mei Si
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Bang-Guo Wei
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| |
Collapse
|
23
|
Foster D, Gao P, Zhang Z, Sipos G, Sobolev AN, Nealon G, Falivene L, Cavallo L, Dorta R. Design, scope and mechanism of highly active and selective chiral NHC-iridium catalysts for the intramolecular hydroamination of a variety of unactivated aminoalkenes. Chem Sci 2021; 12:3751-3767. [PMID: 34163649 PMCID: PMC8179506 DOI: 10.1039/d0sc05884j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/04/2021] [Indexed: 01/28/2023] Open
Abstract
Chiral, cationic NHC-iridium complexes are introduced as catalysts for the intramolecular hydroamination reaction of unactivated aminoalkenes. The catalysts show high activity in the construction of a range of 5- and 6-membered N-heterocycles, which are accessed in excellent optical purity, with various functional groups being tolerated with this system. A major deactivation pathway is presented and eliminated by using alternative reaction conditions. A detailed experimental and computational study on the reaction mechanism is performed providing valuable insights into the mode of action of the catalytic system and pointing to future modifications to be made for this catalytic platform.
Collapse
Affiliation(s)
- Daven Foster
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| | - Pengchao Gao
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| | - Ziyun Zhang
- King Abdullah University of Science and Technology (KAUST), Chemical and Life Sciences and Engineering, Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Gellért Sipos
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| | - Alexandre N Sobolev
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia 35 Stirling Highway 6009 Perth WA Australia
| | - Gareth Nealon
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia 35 Stirling Highway 6009 Perth WA Australia
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST), Chemical and Life Sciences and Engineering, Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Chemical and Life Sciences and Engineering, Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Reto Dorta
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| |
Collapse
|
24
|
Zhang MX, Li WZ, Xu HL, Zhou ZY, Zhuo SP. External electric field: a new catalytic strategy for the anti-Markovnikov hydrohydrazination of parent hydrazine. RSC Adv 2021; 11:11595-11605. [PMID: 35423646 PMCID: PMC8695915 DOI: 10.1039/d1ra01037a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 03/03/2021] [Indexed: 12/23/2022] Open
Abstract
The anti-Markovnikov hydroamination reaction is considered to be a particular challenge, and one of the reactants, parent hydrazine, is also regarded as a troubling reagent. In this study, we first studied the hydrohydrazination of parent hydrazine via an effective and green catalyst—external electric field (EEF). The calculation results demonstrated that the anti-Markovnikov and Markovnikov pathways are competitive when there was no catalyst. EEF oriented along the negative direction of the X axis (Fx) accelerated the anti-Markovnikov addition reaction. Moreover, it lowered the barrier height of the first step by 16.0 kcal mol−1 (from 27.8 to 11.8 kcal mol−1) when the field strength was 180 (×10−4) au. Under the same conditions, the Markovnikov reaction pathway was inhibited, which means that EEF achieved the specificity of hydrohydrazination. The solvents are favorable for the first step addition reaction, particularly the synergy between solvents and Fx lowered the barrier heights by 8.3 (C6H6) and 10.7 (DMSO) kcal mol−1 for an Fx = −60 (×10−4) au. Besides, the introduction of the electron-withdrawing substituent (trifluoromethyl) is also a good strategy to catalyze hydrohydrazination, while the electron-donating group (methoxy) is unfavorable. The anti-Markovnikov hydrohydrazination of parent hydrazine were catalyzed by external electric field (EEF) to a large extent. Furthermore, the solvent effects and the substituent effects of the hydrohydrazination were enhanced in the presence of EEF.![]()
Collapse
Affiliation(s)
- Ming-Xia Zhang
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo
- People's Republic of China
| | - Wen-Zuo Li
- School of Chemistry and Chemical Engineering
- Yantai University
- Yantai
- P. R. China
| | - Hong-Liang Xu
- Institute of Functional Material Chemistry
- Department of Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun
| | - Zi-Yan Zhou
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo
- People's Republic of China
| | - Shu-Ping Zhuo
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo
- People's Republic of China
| |
Collapse
|
25
|
Ma S, Hill CK, Olen CL, Hartwig JF. Ruthenium-Catalyzed Hydroamination of Unactivated Terminal Alkenes with Stoichiometric Amounts of Alkene and an Ammonia Surrogate by Sequential Oxidation and Reduction. J Am Chem Soc 2020; 143:359-368. [DOI: 10.1021/jacs.0c11043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Senjie Ma
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christopher K. Hill
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Casey L. Olen
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John F. Hartwig
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| |
Collapse
|
26
|
Xiao EK, Wu XT, Ma F, Feng X, Chen P, Jiang YJ. Fe(OTf)3- and γ-Cyclodextrin-Catalyzed Hydroamination of Alkenes with Carbazoles. Org Lett 2020; 23:449-453. [DOI: 10.1021/acs.orglett.0c03959] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- En-Kai Xiao
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China
| | - Xian-Tao Wu
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China
| | - Feng Ma
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China
| | - Xiaohua Feng
- Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of BioMedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi 315300, P. R. China
| | - Peng Chen
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China
| | - Yi-Jun Jiang
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China
| |
Collapse
|
27
|
Kim K, Park S, Lee Y. KO
t
‐Bu‐Catalyzed Chemo‐ and Regioselective Hydroamination of Allylic Sulfones with Indoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Kundo Kim
- Department of Chemistry Kwangwoon University Seoul 01897, Republic of Korea
| | - Subin Park
- Department of Chemistry Kwangwoon University Seoul 01897, Republic of Korea
| | - Yunmi Lee
- Department of Chemistry Kwangwoon University Seoul 01897, Republic of Korea
| |
Collapse
|
28
|
Lu MZ, Luo H, Hu Z, Shao C, Kan Y, Loh TP. Directed Palladium(II)-Catalyzed Intermolecular Anti-Markovnikov Hydroarylation of Unactivated Alkenes with (Hetero)arylsilanes. Org Lett 2020; 22:9022-9028. [PMID: 33151076 DOI: 10.1021/acs.orglett.0c03416] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe herein a regioselective palladium(II)-catalyzed intermolecular hydroarylation of unactivated aliphatic alkenes with electronically and sterically diverse (hetero)arylsilanes under redox-neutral conditions. A removable bidentate 8-aminoquinoline auxiliary was readily employed to dictate the regioselectivity, prevent β-hydride elimination, and facilitate protodepalladation. This silicon-based protocol features a broad substrate scope with excellent functional group compatibility and enables an expeditious route to a variety of γ-aryl butyric acid derivatives in good yields with exclusive anti-Markovnikov selectivity.
Collapse
Affiliation(s)
- Ming-Zhu Lu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Zhengsong Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Changdong Shao
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Teck-Peng Loh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| |
Collapse
|
29
|
Catalytic asymmetric addition of an amine N-H bond across internal alkenes. Nature 2020; 588:254-260. [PMID: 33142305 PMCID: PMC8638802 DOI: 10.1038/s41586-020-2919-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 10/27/2020] [Indexed: 12/16/2022]
|
30
|
Development of unique dianionic Ir(III) CCC pincer complexes with a favourable spirocyclic NHC framework. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9875-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
31
|
Chu MM, Chen XY, Wang YF, Qi SS, Jiang ZH, Xu DQ, Xu ZY. Regio- and Enantioselective Friedel–Crafts Benzhydrylation of Indoles in Carbocyclic Ring with ortho-Quinomethanes: Access to Chiral Diarylindolylmethanes. J Org Chem 2020; 85:9491-9502. [DOI: 10.1021/acs.joc.9b03479] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ming-Ming Chu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xue-Yang Chen
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yi-Feng Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Suo-Suo Qi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Zhen-Hui Jiang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Zhen-Yuan Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Department of Green Chemistry and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| |
Collapse
|
32
|
Abstract
During the past two decades, the interest in new methodologies for the synthesis of chiral N-functionalized indoles has grown rapidly. The review illustrates efficient applications of organocatalytic and organometallic strategies for the construction of chiral α-N-branched indoles. Both the direct functionalization of the indole core and indirect methods based on asymmetric N-alkylation of indolines, isatins and 4,7-dihydroindoles are discussed.
Collapse
|
33
|
Affiliation(s)
- Sripati Jana
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Feifei He
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Rene M. Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| |
Collapse
|
34
|
Yang ZH, Wang Q, Zhuo S, Xu LP. Mechanistic Study on Palladium-Catalyzed Regioselective Oxidative Amination: Roles of Ammonium Salts. J Org Chem 2020; 85:6981-6991. [PMID: 32396725 DOI: 10.1021/acs.joc.0c00296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Anti-Markovnikov selective oxidative amination reaction with simple alkenes is particularly promising but challenging because of the inherent electronic effect of the alkene substrate which is in favor of the Markovnikov product. In a recently reported Pd-catalyzed anti-Markovnikov oxidative amination reaction, the addition of quaternary ammonium salts is shown to be critical. We performed a comprehensive DFT study to elucidate the reaction mechanism and the origin of the regioselectivity, as well as the roles of the ammonium salts. Our results show that without and with the ammonium salts the reaction mechanisms are different. Detailed analyses indicate that the steric effects account for the switch of regioselectivity. The roles of the quaternary ammonium salts have been elucidated: (1) Me4NOAc plays the role of base in deprotonating the phthalimide and allows the reaction to proceed through a trans-aminopalladation mechanism; (2) Me4NCl facilitates the thermodynamically favorable transformation of Pd(OAc)2 to the palladate ([Pd(AcO)2Cl2]2-), which lessens the polarity of the carbon-carbon double bond, minimizes the inherent electronic effects, and leads to a steric-effect-controlled reaction; (3) Me4NCl is essential in decreasing the activation barrier in the rate-determining ligand exchange step by Cl- acting as a better leaving group (compared to AcO-).
Collapse
Affiliation(s)
- Zhen-Hua Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, P. R. China
| | - Qian Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, P. R. China
| | - Shuping Zhuo
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, P. R. China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, P. R. China
| |
Collapse
|
35
|
Sushmita, Aggarwal T, Saini KM, Verma AK. Olefin-Oriented Selective Synthesis of Linear and Branched N-Alkylated Heterocycles by Hydroamination. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Sushmita
- Department of Chemistry; University of Delhi; 110007 Delhi India
| | - Trapti Aggarwal
- Department of Chemistry; University of Delhi; 110007 Delhi India
| | | | | |
Collapse
|
36
|
Ma X, An Z, Song H, Shu X, Xiang X, He J. Atomic Pt-Catalyzed Heterogeneous Anti-Markovnikov C-N Formation: Pt 10 Activating N-H for Pt 1δ+-Activated C═C Attack. J Am Chem Soc 2020; 142:9017-9027. [PMID: 32315522 DOI: 10.1021/jacs.0c02997] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
C-N formation is of great significance to synthetic chemistry, as N-containing products are widely used in chemistry, medicine, and biology. Addition of an amine to an unsaturated carbon-carbon bond is a simple yet effective route to produce new C-N bonds. But how to effectively conduct an anti-Markovnikov addition with high selectivity has been a great challenge. Here, we proposed a strategy for highly regioselective C-N addition via hydroamination by using supported Pt. It has been identified that atomic-scale Pt is the active site for C-N addition with Pt12+ for Markovnikov C-N formation and atomic Pt (Pt1δ+ and Pt10) contributing to anti-Markovnikov C-N formation. A selectivity of up to 92% to the anti-Markovnikov product has been achieved with atomic Pt in the addition of styrene and pyrrolidine. A cooperating catalysis for the anti-Markovnikov C-N formation between Pt1δ+ and Pt10 has been revealed. The reaction mechanism has been studied by EPR spectra and in situ FT-IR spectra of adsorption/desorption of styrene and/or pyrrolidine. It has been demonstrated that Pt10 activates amine to be electrophilic, while Pt1δ+ activates C═C by π-bonding to make β-C nucleophilic. The attack of nucleophilic β-C to electrophilic amine affords the anti-Markovnikov addition. This strategy proves highly effective to a variety of substrates in anti-Markovnikov C-N formation, including aromatic/aliphatic amines reacting with aromatic olefins, aromatic/aliphatic olefins with aromatic amines, and linear aliphatic olefins with secondary aliphatic amines. It is believed that the results provide evidence for the function of varied chemical states in monatomic catalysis.
Collapse
Affiliation(s)
- Xiaodan Ma
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Zhe An
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Hongyan Song
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Xin Shu
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Xu Xiang
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Jing He
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| |
Collapse
|
37
|
Alyabyev SB, Beletskaya IP. Gold as a catalyst. Part III. Addition to double bonds. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
38
|
Sun HL, Yang F, Ye WT, Wang JJ, Zhu R. Dual Cobalt and Photoredox Catalysis Enabled Intermolecular Oxidative Hydrofunctionalization. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01209] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Han-Li Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Fan Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wei-Ting Ye
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jun-Jie Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Rong Zhu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| |
Collapse
|
39
|
Ligand-promoted cobalt-catalyzed radical hydroamination of alkenes. Nat Commun 2020; 11:783. [PMID: 32034130 PMCID: PMC7005876 DOI: 10.1038/s41467-020-14459-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 01/10/2020] [Indexed: 12/13/2022] Open
Abstract
Highly regio- and enantioselective intermolecular hydroamination of alkenes is a challenging process potentially leading to valuable chiral amines. Hydroamination of alkenes via metal-catalyzed hydrogen atom transfer (HAT) with good regioselectivity and functional group tolerance has been reported, however, high enantioselectivity has not been achieved due to the lack of suitable ligands. Here we report a ligand-promoted cobalt-catalyzed Markovnikov-type selective radical hydroamination of alkenes with diazo compounds. This operationally simple protocol uses unsymmetric NNN-tridentate (UNT) ligand, readily available alkenes and hydrosilanes to construct hydrazones with good functional group tolerance. The hydrazones can undergo nitrogen–nitrogen bond cleavage smoothly to deliver valuable amine derivatives. Additionally, asymmetric intermolecular hydroamination of unactivated aliphatic terminal alkenes using chiral N-imidazolinylphenyl 8-aminoquinoline (IPAQ) ligands has also been achieved to afford chiral amine derivatives with good enantioselectivities. Asymmetric intermolecular hydroamination of alkenes is a challenging process, potentially leading to useful chiral amines. Here, the authors report unsymmetric NNN tridentate ligands promoting the cobalt-catalyzed radical hydroamination of alkenes via hydrogen atom transfer, also in an asymmetric fashion.
Collapse
|
40
|
PdI2 as a Simple and Efficient Catalyst for the Hydroamination of Arylacetylenes with Anilines. Catalysts 2020. [DOI: 10.3390/catal10020176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The hydroamination reaction is a convenient alternative strategy for the formation of C–N bonds. Herein, we report a new versatile and convenient protocol for the hydroamination of arylacetylenes with anilines using palladium iodide in the absence of any added ligand as catalyst. Mild conditions, excellent regio- and stereoselectivity, and high functional group tolerance are the main features of this methodology. A subsequent reduction step gives access to a wide variety of secondary aromatic amines.
Collapse
|
41
|
Romero-Arenas A, Hornillos V, Iglesias-Sigüenza J, Fernández R, López-Serrano J, Ros A, Lassaletta JM. Ir-Catalyzed Atroposelective Desymmetrization of Heterobiaryls: Hydroarylation of Vinyl Ethers and Bicycloalkenes. J Am Chem Soc 2020; 142:2628-2639. [DOI: 10.1021/jacs.9b12858] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Antonio Romero-Arenas
- Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, Sevilla 41092, Spain
| | - Valentín Hornillos
- Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, Sevilla 41092, Spain
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO−CINQA), C/Prof. García Gonza′lez, 1, Sevilla 41012, Spain
| | - Javier Iglesias-Sigüenza
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO−CINQA), C/Prof. García Gonza′lez, 1, Sevilla 41012, Spain
| | - Rosario Fernández
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO−CINQA), C/Prof. García Gonza′lez, 1, Sevilla 41012, Spain
| | - Joaquín López-Serrano
- Departamento de Química Inorgánica, Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovaciones Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, Sevilla 41092, Spain
| | - Abel Ros
- Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, Sevilla 41092, Spain
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO−CINQA), C/Prof. García Gonza′lez, 1, Sevilla 41012, Spain
| | - José M. Lassaletta
- Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, Sevilla 41092, Spain
| |
Collapse
|
42
|
Gandolfo E, Tang X, Raha Roy S, Melchiorre P. Photochemical Asymmetric Nickel‐Catalyzed Acyl Cross‐Coupling. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910168] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Eugenio Gandolfo
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and Technology Avenida Països Catalans 16-43007 Tarragona Spain
| | - Xinjun Tang
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and Technology Avenida Països Catalans 16-43007 Tarragona Spain
| | - Sudipta Raha Roy
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and Technology Avenida Països Catalans 16-43007 Tarragona Spain
| | - Paolo Melchiorre
- ICREA Passeig Lluís Companys 23 08010 Barcelona Spain
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and Technology Avenida Països Catalans 16-43007 Tarragona Spain
| |
Collapse
|
43
|
Gandolfo E, Tang X, Raha Roy S, Melchiorre P. Photochemical Asymmetric Nickel-Catalyzed Acyl Cross-Coupling. Angew Chem Int Ed Engl 2019; 58:16854-16858. [PMID: 31532568 PMCID: PMC6900114 DOI: 10.1002/anie.201910168] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/17/2019] [Indexed: 11/29/2022]
Abstract
Photochemical enantioselective nickel-catalyzed cross-coupling reactions are difficult to implement. We report a visible-light-mediated strategy that successfully couples symmetrical anhydrides and 4-alkyl dihydropyridines (DHPs) to afford enantioenriched α-substituted ketones under mild conditions. The chemistry does not require exogenous photocatalysts. It is triggered by the direct excitation of DHPs, which act as a radical source and as a reductant, facilitating the turnover of the chiral catalytic nickel complex.
Collapse
Affiliation(s)
- Eugenio Gandolfo
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and TechnologyAvenida Països Catalans16-43007TarragonaSpain
| | - Xinjun Tang
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and TechnologyAvenida Països Catalans16-43007TarragonaSpain
| | - Sudipta Raha Roy
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and TechnologyAvenida Països Catalans16-43007TarragonaSpain
| | - Paolo Melchiorre
- ICREAPasseig Lluís Companys 2308010BarcelonaSpain
- ICIQ – Institute of Chemical Research of Catalonia, the Barcelona Institute of Science and TechnologyAvenida Països Catalans16-43007TarragonaSpain
| |
Collapse
|
44
|
Wu H, Wang L, Zhang J, Jin Y. Urea-Derivative Catalyzed Enantioselective Hydroxyalkylation of Hydroxyindoles with Isatins. Molecules 2019; 24:molecules24213944. [PMID: 31683678 PMCID: PMC6864875 DOI: 10.3390/molecules24213944] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/21/2019] [Accepted: 10/21/2019] [Indexed: 11/16/2022] Open
Abstract
The enantioselective transformations of indoles preferentially take place in the more-reactive azole ring. However, the methods for the enantioselective functionalization of the indole benzene ring are scarce. In this paper, a series of bifunctional (thio)urea derivatives were used to organocatalyze the enantioselective Friedel-Crafts hydroxyalkylation of indoles with isatins. The resulting products were obtained in good yields (65-90%) with up to 94% enantiomer excess (ee). The catalyst type and the substrate scope were broadened in this methodology.
Collapse
Affiliation(s)
- Hao Wu
- Department of Pharmacy, Jilin Medical University, Jilin, Jilin 132013, China.
| | - Liming Wang
- Department of Pharmacy, Jilin Medical University, Jilin, Jilin 132013, China.
| | - Junwei Zhang
- Department of Pharmacy, Jilin Medical University, Jilin, Jilin 132013, China.
| | - Ying Jin
- Department of Pharmacy, Jilin Medical University, Jilin, Jilin 132013, China.
| |
Collapse
|
45
|
Li J, Liu J, Yin J, Zhang Y, Han W, Lan J, Wu D, Bin Z, You J. Double ortho-C–H Activation/Annulation of Benzamides with Aryl Alkynes: A Route to Double-Helical Polycyclic Heteroaromatics. J Org Chem 2019; 84:15697-15705. [DOI: 10.1021/acs.joc.9b02339] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jian Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Junjie Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Jiangliang Yin
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Yuming Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Weiguo Han
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Di Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Zhengyang Bin
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| |
Collapse
|
46
|
Zhou J, Zhu GD, Wang L, Tan FX, Jiang W, Ma ZG, Kang JC, Hou SH, Zhang SY. Remote C6-Enantioselective C–H Functionalization of 2,3-Disubstituted Indoles through the Dual H-Bonds and π–π Interaction Strategy Enabled by CPAs. Org Lett 2019; 21:8662-8666. [DOI: 10.1021/acs.orglett.9b03276] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jia Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Guo-Dong Zhu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Le Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Fu-Xin Tan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Wei Jiang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Zhi-Gang Ma
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jun-Chen Kang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Si-Hua Hou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shu-Yu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs & School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| |
Collapse
|
47
|
Li H, Shen SJ, Zhu CL, Xu H. Direct Intermolecular Anti-Markovnikov Hydroazidation of Unactivated Olefins. J Am Chem Soc 2019; 141:9415-9421. [PMID: 31070901 DOI: 10.1021/jacs.9b04381] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We herein report a direct intermolecular anti-Markovnikov hydroazidation method for unactivated olefins, which is promoted by a catalytic amount of bench-stable benziodoxole at ambient temperature. This method facilitates previously difficult, direct addition of hydrazoic acid across a wide variety of unactivated olefins in both complex molecules and unfunctionalized commodity chemicals. It conveniently fills a synthetic chemistry gap of existing olefin hydroazidation procedures, and thereby provides a valuable tool for azido-group labeling in organic synthesis and chemical biology studies.
Collapse
Affiliation(s)
- Hongze Li
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| | - Shou-Jie Shen
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| | - Cheng-Liang Zhu
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| | - Hao Xu
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| |
Collapse
|
48
|
Larionov VA, Savel'yeva TF, Medvedev MG, Stoletova NV, Smol'yakov AF, Gugkaeva ZT, Cruchter T, Maleev VI. The SelectiveN-Functionalization of Indoles viaaza-Michael Addition in the Ligand Sphere of a Chiral Nickel(II) Complex: Asymmetric Synthesis of (S)-1H-Indole-Alanine Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900650] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Vladimir A. Larionov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
- Department of Inorganic Chemistry; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya Str. 6 117198 Moscow Russia
| | - Tat'yana F. Savel'yeva
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
| | - Michael G. Medvedev
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
- N. D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences; Leninsky Prospect 47 119991 Moscow Russia
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory 1/3 119991 Moscow Russia
- National Research University Higher School of Economics (HSE); Myasnitskaya Str. 20 101000 Moscow Russia
| | - Nadezhda V. Stoletova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
| | - Alexander F. Smol'yakov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
- Plekhanov Russian University of Economics; Stremyanny Per. 36 117997 Moscow Russia
| | - Zalina T. Gugkaeva
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
| | - Thomas Cruchter
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Victor I. Maleev
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russia
| |
Collapse
|
49
|
DiPucchio RC, Rosca S, Athavan G, Schafer LL. Exploiting Natural Complexity: Synthetic Terpenoid‐Alkaloids by Regioselective and Diastereoselective Hydroaminoalkylation Catalysis. ChemCatChem 2019. [DOI: 10.1002/cctc.201900398] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Rebecca C. DiPucchio
- Department of ChemistryUniversity of British Columbia 2036 Main Mall Vancouver, B.C V6T 1Z1 Canada
| | - Sorin‐Claudiu Rosca
- Department of ChemistryUniversity of British Columbia 2036 Main Mall Vancouver, B.C V6T 1Z1 Canada
| | - Gayathri Athavan
- Department of ChemistryUniversity of British Columbia 2036 Main Mall Vancouver, B.C V6T 1Z1 Canada
| | - Laurel L. Schafer
- Department of ChemistryUniversity of British Columbia 2036 Main Mall Vancouver, B.C V6T 1Z1 Canada
| |
Collapse
|
50
|
Yu L, Somfai P. Regio‐ and Enantioselective Formal Hydroamination of Enamines for the Synthesis of 1,2‐Diamines. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902642] [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)
- Lu Yu
- Centre for Analysis and SynthesisDepartment of ChemistryLund University 22100 Lund Sweden
| | - Peter Somfai
- Centre for Analysis and SynthesisDepartment of ChemistryLund University 22100 Lund Sweden
| |
Collapse
|