1
|
Lou SJ, Wang P, Wen X, Mishra A, Cong X, Zhuo Q, An K, Nishiura M, Luo Y, Hou Z. ( Z)-Selective Isomerization of 1,1-Disubstituted Alkenes by Scandium-Catalyzed Allylic C-H Activation. J Am Chem Soc 2024; 146:26766-26776. [PMID: 39303300 DOI: 10.1021/jacs.4c06899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
The isomerization of 1,1-disubstituted alkenes through 1,3-hydrogen shift is an atom-efficient route for synthesizing trisubstituted alkenes, which are important moieties in many natural products, pharmaceuticals, and organic materials. However, this reaction often encounters regio- and stereoselectivity challenges, typically yielding E/Z-mixtures of the alkene products or thermodynamically favored (E)-alkenes. Herein, we report the (Z)-selective isomerization of 1,1-disubstituted alkenes to trisubstituted (Z)-alkenes via the regio- and stereospecific activation of an allylic C-H bond. The key to the success of this unprecedented transformation is the use of a sterically demanding half-sandwich scandium catalyst in combination with a bulky quinoline compound, 2-tert-butylquinoline. Deuterium-labeling experiments and density functional theory (DFT) calculations have revealed that 2-tert-butylquinoline not only facilitates the C═C bond transposition through hydrogen shuttling but also governs the regio- and stereoselectivity due to the steric hindrance of the tert-butyl group. This protocol enables the synthesis of diverse (Z)-configured acyclic trisubstituted alkenes and endocyclic trisubstituted alkenes from readily accessible 1,1-disubstituted alkenes. It offers an efficient and selective route for preparing a new family of synthetically challenging (Z)-trisubstituted alkenes with broad substrate scope, 100% atom efficiency, high regio- and stereoselectivity, and an unprecedented reaction mechanism.
Collapse
Affiliation(s)
- Shao-Jie Lou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Pan Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xin Wen
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Aniket Mishra
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Qingde Zhuo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kun An
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| |
Collapse
|
2
|
Blaha I, Weber S, Dülger R, Veiros LF, Kirchner K. Alkene Isomerization Catalyzed by a Mn(I) Bisphosphine Borohydride Complex. ACS Catal 2024; 14:13174-13180. [PMID: 39263541 PMCID: PMC11385370 DOI: 10.1021/acscatal.4c03364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/07/2024] [Accepted: 08/12/2024] [Indexed: 09/13/2024]
Abstract
An additive-free manganese-catalyzed isomerization of terminal alkenes to internal alkenes is described. This reaction is implementing an inexpensive nonprecious metal catalyst. The most efficient catalyst is the borohydride complex cis-[Mn(dippe)(CO)2(κ2-BH4)]. This catalyst operates at room temperature, with a catalyst loading of 2.5 mol %. A variety of terminal alkenes is effectively and selectively transformed into the respective internal E-alkenes. Preliminary results show chain-walking isomerization at an elevated temperature. Mechanistic studies were carried out, including stoichiometric reactions and in situ NMR analysis. These experiments are flanked by computational studies. Based on these, the catalytic process is initiated by the liberation of "BH3" as a THF adduct. The catalytic process is initiated by double bond insertion into an M-H species, leading to an alkyl metal intermediate, followed by β-hydride elimination at the opposite position to afford the isomerization product.
Collapse
Affiliation(s)
- Ines Blaha
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Stefan Weber
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Robin Dülger
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Luis F Veiros
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049 001 Lisboa, Portugal
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| |
Collapse
|
3
|
Scaringi S, Leforestier B, Mazet C. Remote Functionalization by Pd-Catalyzed Isomerization of Alkynyl Alcohols. J Am Chem Soc 2024; 146:18606-18615. [PMID: 38941513 PMCID: PMC11240579 DOI: 10.1021/jacs.4c05136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/31/2024] [Accepted: 06/05/2024] [Indexed: 06/30/2024]
Abstract
In recent years, progress has been made in the development of catalytic methods that allow remote functionalizations based on alkene isomerization. In contrast, protocols based on alkyne isomerization are comparatively rare. Herein, we report a general Pd-catalyzed long-range isomerization of alkynyl alcohols. Starting from aryl-, heteroaryl-, or alkyl-substituted precursors, the optimized system provides access preferentially to the thermodynamically more stable α,β-unsaturated aldehydes and is compatible with potentially sensitive functional groups. We showed that the migration of both π-components of the carbon-carbon triple bond can be sustained over several methylene units. Computational investigations served to shed light on the key elementary steps responsible for the reactivity and selectivity. These include an unorthodox phosphine-assisted deprotonation rather than a more conventional β-hydride elimination in the final tautomerization event.
Collapse
Affiliation(s)
| | | | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211 Geneva, Switzerland
| |
Collapse
|
4
|
Chavada LR, Mishra P, Pandey AK. Nickel-Catalyzed Alkene Isomerization to Access Bench-Stable Enamines and Their [3 + 2] Annulation. J Org Chem 2024; 89:9233-9242. [PMID: 38912727 DOI: 10.1021/acs.joc.4c00154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Enamines are difficult to prepare on the bench due to their instability, which results in side reactions, decompositions, poor yields, etc. Herein, we developed a simple and effective method for making bench-stable enamines using a very low amount of nickel catalyst loading. The deuterium exchange, competitive reaction, and radical clock experiment have all been found to favor the ionic mechanism of this alkene isomerization. Scale-up and [3 + 2] annulation reaction of enamines with activated cyclopropane to deliver cyclopentane derivatives have shown the value of this method in organic synthesis.
Collapse
Affiliation(s)
- Lilesh Rambhai Chavada
- Fluoro-Agrochemicals Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Tarnaka, Hyderabad, Telangana 500007, India
- Chemical Science Division, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka Mishra
- Fluoro-Agrochemicals Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Tarnaka, Hyderabad, Telangana 500007, India
| | - Ashok Kumar Pandey
- Fluoro-Agrochemicals Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Tarnaka, Hyderabad, Telangana 500007, India
- Chemical Science Division, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
5
|
Davies AM, Greene KH, Allen AR, Farris BM, Szymczak NK, Stephenson CRJ. Catalytic Olefin Transpositions Facilitated by Ruthenium N,N,N-Pincer Complexes. J Org Chem 2024; 89:9647-9653. [PMID: 38901003 DOI: 10.1021/acs.joc.4c00304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
In this report, we demonstrate olefin transposition/isomerization reactions catalyzed by a series of N,N,N-pincer (1,3-bis(2-pyridylimino)isoindoline) Ru-hydride complexes. The protocol proceeds at room temperature for most substrates, achieving excellent yields, regioselectivity, and diastereoselectivity in short reaction times. The air-stable Ru-chloride derivatives of these complexes exhibit comparable reactivity enabling benchtop setup and synthetic versatility. Furthermore, we demonstrate the potential for one-pot cascade sequences of the products derived from the transposition reactions.
Collapse
Affiliation(s)
- Alex M Davies
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kara H Greene
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Anthony R Allen
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Benjamin M Farris
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Nathaniel K Szymczak
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Corey R J Stephenson
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| |
Collapse
|
6
|
Zou XJ, Jin ZX, Yang HY, Wu F, Ren ZH, Guan ZH. Palladium-Catalyzed Inward Isomerization Hydroaminocarbonylation of Alkenes. Angew Chem Int Ed Engl 2024; 63:e202406226. [PMID: 38618886 DOI: 10.1002/anie.202406226] [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: 04/01/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/16/2024]
Abstract
In contrast to the kinetically favored outward isomerization-hydrocarbonylation of alkenes, the disfavored inward isomerization-hydrocarbonylation of alkenes remains an important challenge. Herein, we have developed a novel and effective palladium-catalyzed inward isomerization-hydroaminocarbonylation of unactivated alkenes and aniline hydrochlorides for the formation of synthetically valuable α-aryl carboxylic amides in high yields and high site-selectivities. The high efficiency of the reaction is attributed to a relay catalysis strategy, in which the Markovnikov-favored [PdH]-PtBu3 catalyst is responsible for inward isomerization, while the [PdH]-Ruphos catalyst is responsible for hydroaminocarbonylation of the resulting conjugated aryl alkenes. The reaction exhibits highly functional group tolerance and provides a new method for formal carbonylation of remote C(sp3)-H bond.
Collapse
Affiliation(s)
- Xian-Jin Zou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| | - Zhao-Xing Jin
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| | - Hui-Yi Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| | - Fei Wu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| |
Collapse
|
7
|
Chang ASM, Kascoutas MA, Valentine QP, How KI, Thomas RM, Cook AK. Alkene Isomerization Using a Heterogeneous Nickel-Hydride Catalyst. J Am Chem Soc 2024; 146:15596-15608. [PMID: 38771258 DOI: 10.1021/jacs.4c04719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Transition metal-catalyzed alkene isomerization is an enabling technology used to install an alkene distal to its original site. Due to their well-defined structure, homogeneous catalysts can be fine-tuned to optimize reactivity, stereoselectivity, and positional selectivity, but they often suffer from instability and nonrecyclability. Heterogeneous catalysts are generally highly robust but continue to lack active-site specificity and are challenging to rationally improve through structural modification. Known single-site heterogeneous catalysts for alkene isomerization utilize precious metals and bespoke, expensive, and synthetically intense supports. Additionally, they generally have mediocre reactivity, inspiring us to develop a heterogeneous catalyst with an active site made from readily available compounds made of Earth-abundant elements. Previous work demonstrated that a very active homogeneous catalyst is formed upon protonation of Ni[P(OEt)3]4 by H2SO4, generating a [Ni-H]+ active site. This catalyst is incredibly active, but also decomposes readily, which severely limits its utility. Herein we show that by using a solid acid (sulfated zirconia, SZO300), not only is this decomposition prevented, but high activity is maintained, improved selectivity is achieved, and a broader scope of functional groups is tolerated. Preliminary mechanistic experiments suggest that the catalytic reaction likely goes through an intermolecular, two-electron pathway. A detailed kinetic study comparing the state-of-the-art Ni and Pd isomerization catalysts reveals that the highest activity and selectivity is seen with the Ni/SZO300 system. The reactivity of Ni/SZO300, is not limited to alkene isomerization; it is also a competent catalyst for hydroalkenylation, hydroboration, and hydrosilylation, demonstrating the broad application of this heterogeneous catalyst.
Collapse
Affiliation(s)
- Alison Sy-Min Chang
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Melanie A Kascoutas
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Quinn P Valentine
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Kiera I How
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Rachel M Thomas
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Amanda K Cook
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| |
Collapse
|
8
|
Rubel CZ, Ravn AK, Ho HC, Yang S, Li ZQ, Engle KM, Vantourout JC. Stereodivergent, Kinetically Controlled Isomerization of Terminal Alkenes via Nickel Catalysis. Angew Chem Int Ed Engl 2024; 63:e202320081. [PMID: 38494945 DOI: 10.1002/anie.202320081] [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: 12/27/2023] [Revised: 03/05/2024] [Accepted: 03/17/2024] [Indexed: 03/19/2024]
Abstract
Because internal alkenes are more challenging synthetic targets than terminal alkenes, metal-catalyzed olefin mono-transposition (i.e., positional isomerization) approaches have emerged to afford valuable E- or Z- internal alkenes from their complementary terminal alkene feedstocks. However, the applicability of these methods has been hampered by lack of generality, commercial availability of precatalysts, and scalability. Here, we report a nickel-catalyzed platform for the stereodivergent E/Z-selective synthesis of internal alkenes at room temperature. Commercial reagents enable this one-carbon transposition of terminal alkenes to valuable E- or Z-internal alkenes via a Ni-H-mediated insertion/elimination mechanism. Though the mechanistic regime is the same in both systems, the underlying pathways that lead to each of the active catalysts are distinct, with the Z-selective catalyst forming from comproportionation of an oxidative addition complex followed by oxidative addition with substrate and the E-selective catalyst forming from protonation of the metal by the trialkylphosphonium salt additive. In each case, ligand sterics and denticity control stereochemistry and prevent over-isomerization.
Collapse
Affiliation(s)
- Camille Z Rubel
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICMBS, UMR 5246 du CNRS), Université Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
| | - Anne K Ravn
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Hang Chi Ho
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Shenghua Yang
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Zi-Qi Li
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA
| | - Julien C Vantourout
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICMBS, UMR 5246 du CNRS), Université Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
- Syngenta Crop Protection AG, Schaffauserstrasse, 4332, Stein, Switzerland
| |
Collapse
|
9
|
Zhong J, Wang X, Luo M, Zeng X. Chromium-Catalyzed Alkene Isomerization with Switchable Selectivity. Org Lett 2024; 26:3124-3129. [PMID: 38592221 DOI: 10.1021/acs.orglett.4c00737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
We report a single additive-responsive chromium-catalyzed system for selectively producing either of two different internal alkene isomers. The chromium catalyst, in the presence of HBpin/LiOtBu, enables the isomerization of alkenes over multiple carbon atoms to give the most thermodynamically stable isomers. The same catalyst allows for the selective isomerization of terminal alkenes over one carbon atom without an additive, exhibiting efficient and controllable alkene transposition selectivity.
Collapse
Affiliation(s)
- Jiaoyue Zhong
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xuelan Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Meiming Luo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| |
Collapse
|
10
|
Raje S, Sheikh Mohammad T, de Ruiter G. A Neutral PC NHCP Co(I)-Me Pincer Complex as a Catalyst for N-Allylic Isomerization with a Broad Substrate Scope. J Org Chem 2024; 89:4319-4325. [PMID: 38520345 PMCID: PMC11002938 DOI: 10.1021/acs.joc.3c02349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024]
Abstract
Earth-abundant-metal catalyzed double bond transposition offers a sustainable and atom-economical route toward the synthesis of internal alkenes. With an emphasis specifically on internal olefins and ethers, the isomerization of allylic amines has been particularly under represented in the literature. Herein, we report an efficient methodology for the selective isomerization of N-allylic organic compounds, including amines, amides, and imines. The reaction is catalyzed by a neutral PCNHCP cobalt(I) pincer complex and proceeds via a π-allyl mechanism. The isomerization occurs readily at 80-90 °C, and it is compatible with a wide variety of functional groups. The in situ formed enamines could additionally be used for a one-pot inverse-electron-demand Diels-Alder reaction to furnish a series of diversely substituted heterobiaryls, which is further discussed in this report.
Collapse
Affiliation(s)
- Sakthi Raje
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
| | - Tofayel Sheikh Mohammad
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
| | - Graham de Ruiter
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
| |
Collapse
|
11
|
Cheng B, Song L, Chen F. Huperzine alkaloids: forty years of total syntheses. Nat Prod Rep 2024; 41:59-84. [PMID: 37818549 DOI: 10.1039/d3np00029j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Covering: up to 2023Huperzine alkaloids are a group of natural products belonging to the Lycopodium alkaloids family. The representative member huperzine A has a unique structure and exhibits potent inhibitory activity against acetylcholine esterase (AChE). This subfamily of alkaloids provides a great opportunity for developing synthetic methodologies and asymmetric synthesis. The efforts towards the synthesis of huperzine A have cultivated dozens of total syntheses and a rich body of new chemistry. Impressive progress has also been made in the synthesis of other huperzine alkaloids. The total syntheses of huperzines B, U, O, Q and R, structure reassignment and total syntheses of huperzines K, M and N have been reported in the past decade. This review focuses on the synthetic organic chemistry and the biosynthesis and medicinal chemistry of huperzines are also covered briefly.
Collapse
Affiliation(s)
- Bichu Cheng
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.
- School of Science, Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology, Shenzhen 518055, China.
| | - Lili Song
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.
| | - Fener Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
- School of Science, Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology, Shenzhen 518055, China.
| |
Collapse
|
12
|
Chen XX, Luo H, Chen YW, Liu Y, He ZT. Enantioselective Palladium-Catalyzed Directed Migratory Allylation of Remote Dienes. Angew Chem Int Ed Engl 2023; 62:e202307628. [PMID: 37387558 DOI: 10.1002/anie.202307628] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/30/2023] [Accepted: 06/30/2023] [Indexed: 07/01/2023]
Abstract
Chain walking has been an efficient route to realize the functionalization of inert C(sp3 )-H bonds, but this strategy is limited to mono-olefin migration and functionalization. Herein, we demonstrate the feasibility of tandem directed simultaneous migrations of remote olefins and stereoselective allylation for the first time. The adoption of palladium hydride catalysis and secondary amine morpholine as solvent is critical for achieving high substrate compatibility and stereochemical control with this method. The protocol is also applicable to the functionalization of three vicinal C(sp3 )-H bonds and thus construct three continuous stereocenters along a propylidene moiety via a short synthetic process. Preliminary mechanistic experiments corroborated the design of simultaneous walking of remote dienes.
Collapse
Affiliation(s)
- Xian-Xiao Chen
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Hao Luo
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Ye-Wei Chen
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yang Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zhi-Tao He
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| |
Collapse
|
13
|
Duhamel T, Scaringi S, Leforestier B, Poblador-Bahamonde AI, Mazet C. Assisted Tandem Pd Catalysis Enables Regiodivergent Heck Arylation of Transiently Generated Substituted Enol Ethers. JACS AU 2023; 3:261-274. [PMID: 36711081 PMCID: PMC9875267 DOI: 10.1021/jacsau.2c00645] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 06/18/2023]
Abstract
Two complementary regiodivergent Pd-catalyzed assisted tandem [isomerization/Heck arylation] reactions are reported. They provide access to a broad array of acyclic trisubstituted vinyl ethers starting from readily available alkenyl ethers. In both cases, the isomerization is conducted with a [Pd-H] precatalyst supported by tris-tert-butyl phosphine ligands. When the catalyst is modified by the addition of a chelating bisphosphine ligand (dppp), an organic base (Cy2NMe), sodium acetate, and aryl triflates are used as electrophiles, the α-arylation pathway is promoted preferentially. The β-arylation pathway is favored for electron-deficient and electron-neutral aryl halides when the catalyst is simply modified by the addition of an excess of an organic base (Et3N) after completion of the isomerization reaction. Electron-rich aryl halides lead to reduced levels of regiocontrol. The moderate stereoselectivity obtained are proposed to reflect the absence of stereocontrol in the isomerization step. Computational analyses suggest that migratory insertion is selectivity-determining for both the arylations. For the β-selective arylation, an energy decomposition analysis underscored that electronic factors favor α-regioselectivity and steric effects favor β-regioselectivity. Preliminary investigations show that high levels of stereoselectivity can be achieved for the α-selective arylation by ligand control. Complementarily, reaction conditions for postcatalytic stereo-correction have also been identified for each catalytic system.
Collapse
Affiliation(s)
| | | | | | | | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| |
Collapse
|
14
|
Tan SZ, Chen P, Zhu L, Gan MQ, Ouyang Q, Du W, Chen YC. Use of ( E, E)-Dienoic Acids as Switchable ( E, E)- and ( Z, E)-Dienyl Anion Surrogates via Ligand-Controlled Palladium Catalysis. J Am Chem Soc 2022; 144:22689-22697. [PMID: 36468863 DOI: 10.1021/jacs.2c10004] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carboxylic acids are not readily applied as carbon-based nucleophiles due to their intrinsic acidic group. Here, we demonstrate that free (E,E)-2,4-dienoic acids form electron-neutral and highest occupied molecular orbital-raised η2-complexes with Pd(0) and undergo Friedel-Crafts-type additions to imines with exclusive α-regioselectivity, giving formal dienylated products after decarboxylation. Unusual and switchable (E,E)- and (Z,E)-selectivity, along with excellent enantioselectivity, is achieved via ligand-controlled outer-sphere or inner-sphere reaction modes, respectively, which are well supported by comprehensive density functional theory calculation studies. An unprecedented formal reductive Mannich reaction between (E,E)-dienoic acids and imines is also developed to furnish enantioenriched β-amino acid derivatives.
Collapse
Affiliation(s)
- Shun-Zhong Tan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Peng Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Lei Zhu
- College of Pharmacy, Third Military Medical University, Chongqing400038, China
| | - Meng-Qi Gan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing400038, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China.,College of Pharmacy, Third Military Medical University, Chongqing400038, China
| |
Collapse
|
15
|
Kustiana BA, Elsherbeni SA, Linford‐Wood TG, Melen RL, Grayson MN, Morrill LC. B(C 6 F 5 ) 3 -Catalyzed E-Selective Isomerization of Alkenes. Chemistry 2022; 28:e202202454. [PMID: 35943082 PMCID: PMC9804281 DOI: 10.1002/chem.202202454] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Indexed: 01/05/2023]
Abstract
Herein, we report the B(C6 F5 )3 -catalyzed E-selective isomerization of alkenes. The transition-metal-free method is applicable across a diverse array of readily accessible substrates, giving access to a broad range of synthetically useful products containing versatile stereodefined internal alkenes. The reaction mechanism was investigated by using synthetic and computational methods.
Collapse
Affiliation(s)
- Betty A. Kustiana
- Cardiff Catalysis InstituteSchool of ChemistryCardiff University Main BuildingPark PlaceCardiffCF10 3ATUK
| | - Salma A. Elsherbeni
- Cardiff Catalysis InstituteSchool of ChemistryCardiff University Main BuildingPark PlaceCardiffCF10 3ATUK
| | | | - Rebecca L. Melen
- Cardiff Catalysis InstituteSchool of ChemistryCardiff University Main BuildingPark PlaceCardiffCF10 3ATUK
| | | | - Louis C. Morrill
- Cardiff Catalysis InstituteSchool of ChemistryCardiff University Main BuildingPark PlaceCardiffCF10 3ATUK
| |
Collapse
|
16
|
Yang W, Chernyshov IY, Weber M, Pidko EA, Filonenko GA. Switching between Hydrogenation and Olefin Transposition Catalysis via Silencing NH Cooperativity in Mn(I) Pincer Complexes. ACS Catal 2022; 12:10818-10825. [PMID: 36082051 PMCID: PMC9442580 DOI: 10.1021/acscatal.2c02963] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/09/2022] [Indexed: 11/30/2022]
Abstract
![]()
While Mn-catalyzed (de)hydrogenation of carbonyl derivatives
has
been well established, the reactivity of Mn hydrides with olefins
remains very rare. Herein, we report a Mn(I) pincer complex that effectively
promotes site-controlled transposition of olefins. This reactivity
is shown to emerge once the N–H functionality within the Mn/NH
bifunctional complex is suppressed by alkylation. While detrimental
for carbonyl (de)hydrogenation, such masking of the cooperative N–H
functionality allows for the highly efficient conversion of a wide
range of allylarenes to higher-value 1-propenybenzenes in near-quantitative
yield with excellent stereoselectivities. The reactivity toward a
single positional isomerization was also retained for long-chain alkenes,
resulting in the highly regioselective formation of 2-alkenes, which
are less thermodynamically stable compared to other possible isomerization
products. The detailed mechanistic analysis of the reaction between
the activated Mn catalyst and olefins points to catalysis operating
via a metal–alkyl mechanism—one of the three conventional
transposition mechanisms previously unknown in Mn complexes.
Collapse
Affiliation(s)
- Wenjun Yang
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Ivan Yu. Chernyshov
- TheoMAT Group, ChemBio Cluster, ITMO University, Lomonosova 9, St. Petersburg 191002, Russia
| | - Manuela Weber
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstraße 34/36, D-14195 Berlin, Germany
| | - Evgeny A. Pidko
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Georgy A. Filonenko
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| |
Collapse
|
17
|
Zhao C, Liu Y, Zhang X, He G, Liu H, Ji D, Hu Y, Chen Q. Bioinspired and Ligand‐Regulated Unnatural Prenylation and Geranylation of Oxindoles with Isoprene under Pd Catalysis. Angew Chem Int Ed Engl 2022; 61:e202207202. [DOI: 10.1002/anie.202207202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Chao‐Yang Zhao
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Ying‐Ying Liu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Xiang‐Xin Zhang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Gu‐Cheng He
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Heng Liu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Ding‐Wei Ji
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yan‐Cheng Hu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| |
Collapse
|
18
|
Precise electrical gating of the single-molecule Mizoroki-Heck reaction. Nat Commun 2022; 13:4552. [PMID: 35931699 PMCID: PMC9355990 DOI: 10.1038/s41467-022-32351-8] [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: 03/04/2022] [Accepted: 07/21/2022] [Indexed: 11/08/2022] Open
Abstract
Precise tuning of chemical reactions with predictable and controllable manners, an ultimate goal chemists desire to achieve, is valuable in the scientific community. This tunability is necessary to understand and regulate chemical transformations at both macroscopic and single-molecule levels to meet demands in potential application scenarios. Herein, we realise accurate tuning of a single-molecule Mizoroki-Heck reaction via applying gate voltages as well as complete deciphering of its detailed intrinsic mechanism by employing an in-situ electrical single-molecule detection, which possesses the capability of single-event tracking. The Mizoroki-Heck reaction can be regulated in different dimensions with a constant catalyst molecule, including the molecular orbital gating of Pd(0) catalyst, the on/off switching of the Mizoroki-Heck reaction, the promotion of its turnover frequency, and the regulation of each elementary reaction within the Mizoroki-Heck catalytic cycle. These results extend the tuning scope of chemical reactions from the macroscopic view to the single-molecule approach, inspiring new insights into designing different strategies or devices to unveil reaction mechanisms and discover novel phenomena.
Collapse
|
19
|
Zhao C, Liu Y, Zhang X, He G, Liu H, Ji D, Hu Y, Chen Q. Bioinspired and Ligand‐Regulated Unnatural Prenylation and Geranylation of Oxindoles with Isoprene under Pd Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207202] [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)
- Chao‐Yang Zhao
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Ying‐Ying Liu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Xiang‐Xin Zhang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Gu‐Cheng He
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Heng Liu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Ding‐Wei Ji
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yan‐Cheng Hu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| |
Collapse
|
20
|
Ge Q, Meng J, Liu H, Yang Z, Wu Z, Zhang W. Palladium‐catalyzed long‐range isomerization of aryl olefins. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qianyi Ge
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Institute of Pharmacy & Pharmacology School of Pharmaceutical Science, Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Jingjie Meng
- 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
| | - Huikang Liu
- 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
| | - Zehua Yang
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Institute of Pharmacy & Pharmacology School of Pharmaceutical Science, Hengyang Medical School University of South China Hengyang Hunan 421001 China
| | - Zhengxing Wu
- 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
| |
Collapse
|
21
|
|
22
|
Cera G, Maestri G. Palladium/Brønsted Acid Catalysis for Hydrofunctionalizations of Alkynes: from Tsuji‐Trost Allylations to Stereoselective Methodologies. ChemCatChem 2022. [DOI: 10.1002/cctc.202200295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gianpiero Cera
- Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
| | - Giovanni Maestri
- University of Parma: Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
| |
Collapse
|
23
|
Kawamura KE, Chang ASM, Martin DJ, Smith HM, Morris PT, Cook AK. Modular Ni(0)/Silane Catalytic System for the Isomerization of Alkenes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kiana E. Kawamura
- Department of Chemistry and Biochemistry, University of Oregon, 1585 13th Avenue, Eugene, Oregon 97403, United States
| | - Alison Sy-min Chang
- Department of Chemistry and Biochemistry, University of Oregon, 1585 13th Avenue, Eugene, Oregon 97403, United States
| | - Daryl J. Martin
- Department of Chemistry and Biochemistry, University of Oregon, 1585 13th Avenue, Eugene, Oregon 97403, United States
| | - Haley M. Smith
- Department of Chemistry and Biochemistry, University of Oregon, 1585 13th Avenue, Eugene, Oregon 97403, United States
| | - Parker T. Morris
- Department of Chemistry and Biochemistry, University of Oregon, 1585 13th Avenue, Eugene, Oregon 97403, United States
| | - Amanda K. Cook
- Department of Chemistry and Biochemistry, University of Oregon, 1585 13th Avenue, Eugene, Oregon 97403, United States
| |
Collapse
|
24
|
Garbo M, Mazet C. Stereoselective Access to Conjugated and Cross-Conjugated Dienoates by Rh- and Ru-Catalyzed Isomerizations of Vinylcyclopropanes. Org Lett 2022; 24:752-756. [PMID: 34978828 DOI: 10.1021/acs.orglett.1c04223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two complementary catalytic protocols for the isomerization of stereoisomeric mixtures of vinylcyclopropanes are described. A commercially available cationic rhodium complex provides access to conjugated dienoates in high yield with excellent stereocontrol. The combination of a bisphosphine ligand and a ruthenium precatalyst affords cross-conjugated dienoates via a formal 1,3-ring opening. The products are obtained with moderate to high stereoselectivity. The ability of each type of dienoate to engage in [4 + 2] cycloaddition reactions has been demonstrated.
Collapse
Affiliation(s)
- Michele Garbo
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| |
Collapse
|
25
|
Abstract
The majority of medicines contain a nitrogen atom within a five- or six- membered ring. To rapidly access both such aza-heterocycles, we sought to develop a remote C-H desaturation of amines. Inspired by the Hofmann-Löffler-Freytag synthesis of five-membered pyrrolidines, we tackled the century-old challenge of synthesizing six-membered piperidines by H-atom transfer. We present herein a double, vicinal C-H oxidation by dual catalysis, entailing Ir photocatalytic initiation of 1,5-HAT by an N-centered radical and Cu-catalyzed interception of the C-centered radical to facilitate desaturation. By this mechanism, two C-H bonds (δ and ε to N) are regioselectively removed from unbiased, remote positions of an alkyl chain. Over 50 examples illustrate efficiency, selectivity, functional group tolerance, and medicinal utility of this synthesis of both internal and terminal δ vinylic amines and aza-heterocycles. Mechanistic experiments probe the alkylcopper intermediate, as well as kinetics and regioselectivity of the HAT and elimination steps.
Collapse
|
26
|
Chen HC, Wu Y, Yu Y, Wang P. Pd-Catalyzed Isomerization of Alkenes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
27
|
Liu X, Rong X, Liu S, Lan Y, Liu Q. Cobalt-Catalyzed Desymmetric Isomerization of Exocyclic Olefins. J Am Chem Soc 2021; 143:20633-20639. [PMID: 34870975 DOI: 10.1021/jacs.1c11343] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Chiral cyclic olefins, 1-methylcyclohexenes, are versatile building blocks for the synthesis of pharmaceuticals and natural products. Despite the prevalence of these structural motifs, the development of efficient synthetic methods remains an unmet challenge. Herein we report a novel desymmetric isomerization of exocyclic olefins using a series of newly designed chiral cobalt catalysts, which enables a straightforward construction of chiral 1-methylcyclohexenes with diversified functionalities. The synthetic utility of this methodology is highlighted by a concise and enantioselective synthesis of a natural product, β-bisabolene. The versatility of the reaction products is further demonstrated by multifarious derivatizations.
Collapse
Affiliation(s)
- Xufang Liu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xianle Rong
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Shihan Liu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, People's Republic of China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, People's Republic of China
| | - Qiang Liu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| |
Collapse
|
28
|
Denton EH, Lee YH, Roediger S, Boehm P, Fellert M, Morandi B. Katalytische Carbochlorocarbonylierung von ungesättigten Kohlenwasserstoffen durch C‐COCl‐Bindungsspaltung**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elliott H. Denton
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Yong Ho Lee
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Sven Roediger
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Philip Boehm
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Maximilian Fellert
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| |
Collapse
|
29
|
Denton EH, Lee YH, Roediger S, Boehm P, Fellert M, Morandi B. Catalytic Carbochlorocarbonylation of Unsaturated Hydrocarbons via C-COCl Bond Cleavage*. Angew Chem Int Ed Engl 2021; 60:23435-23443. [PMID: 34432940 PMCID: PMC8596603 DOI: 10.1002/anie.202108818] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Indexed: 12/04/2022]
Abstract
Here we report a palladium‐catalysed difunctionalisation of unsaturated C−C bonds with acid chlorides. Formally, the C−COCl bond of an acid chloride is cleaved and added, with complete atom economy, across either strained alkenes or a tethered alkyne to generate new acid chlorides. The transformation does not require exogenous carbon monoxide, operates under mild conditions, shows a good functional group tolerance, and gives the isolated products with excellent stereoselectivity. The intermolecular reaction tolerates both aryl‐ and alkenyl‐substituted acid chlorides and is successful when carboxylic acids are transformed to the acid chloride in situ. The reaction also shows an example of temperature‐dependent stereodivergence which, together with plausible mechanistic pathways, is investigated by DFT calculations. Moreover, we show that benzofurans can be formed in an intramolecular variant of the reaction. Finally, derivatisation of the products from the intermolecular reaction provides a highly stereoselective approach for the synthesis of tetrasubstituted cyclopentanes.
Collapse
Affiliation(s)
- Elliott H Denton
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Yong Ho Lee
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland.,Max-Planck-Intitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Sven Roediger
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Philip Boehm
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Maximilian Fellert
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland.,Max-Planck-Intitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| |
Collapse
|
30
|
Zhao Y, Rui J, Du Q, Chen R, Zhan Y, Zheng X, Wu X. Catalytic base-controlled regiodivergent heteronucleophilic hydrofunctionalization of β,γ-unsaturated amides. Chem Commun (Camb) 2021; 57:9756-9759. [PMID: 34477183 DOI: 10.1039/d1cc03440e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A general catalytic base-controlled regiodivergent nucleophilic hydrofunctionalization of both terminal and internal β,γ-unsaturated amides has been reported. The atom-economical addition of various S/P-based nucleophiles was also exclusively chemoselective. More than 60 branched or linear hetero-substituted aliphatic amides were synthesized from common starting materials under transition-metal-free conditions. Preliminary mechanistic studies are consistent with our proposed divergent catalytic cycles.
Collapse
Affiliation(s)
- Yao Zhao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jiacheng Rui
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Qiang Du
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Rizhi Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ying Zhan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Xintao Zheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Xiaojin Wu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| |
Collapse
|
31
|
Xiao P, Pannecoucke X, Bouillon J, Couve‐Bonnaire S. Palladium‐Catalysed Oxidative Decarboxylative Cross‐Coupling of Heteroarenes with CF
3
‐Acrylic Acids. ChemistrySelect 2021. [DOI: 10.1002/slct.202102425] [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)
- Pan Xiao
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
| | - Xavier Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014) 76000 Rouen France
| | | | | |
Collapse
|
32
|
Hu X, He J, Zhang Y, Zhou J, Yu J. Highly Stereoselective Positional Isomerization of Styrenes
via
Acid‐Catalyzed
Carbocation Mechanism. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiao‐Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jun‐Xiong He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ying Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
| | - Jin‐Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| |
Collapse
|
33
|
Ding L, Niu YN, Xia XF. Pd-Catalyzed Tandem Isomerization/Cyclization for the Synthesis of Aromatic Oxazaheterocycles and Pyrido[3,4- b]indoles. J Org Chem 2021; 86:10032-10042. [PMID: 34279106 DOI: 10.1021/acs.joc.1c00770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An effient tandem process consisting of palladium-catalyzed double-bond isomerization of long-chain olefins and subsequent intramolecular cyclization promoted by B2(OH)2 for the synthesis of aromatic oxazaheterocycles is disclosed. This strategy can also provide rapid access to pyrido[3,4-b]indoles, trans-2-olefins, and eneamides bearing various functional groups with high regio- and stereoselectivity.
Collapse
Affiliation(s)
- Linglong Ding
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yan-Ning Niu
- Department of Teaching and Research, Nanjing Forestry University, Huaian, Jiangsu 223003, China
| | - Xiao-Feng Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China.,Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin, Guangxi 537000, China
| |
Collapse
|
34
|
Scaringi S, Mazet C. Kinetically Controlled Stereoselective Access to Branched 1,3-Dienes by Ru-Catalyzed Remote Conjugative Isomerization. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02144] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Simone Scaringi
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| |
Collapse
|
35
|
Iwamoto H, Tsuruta T, Ogoshi S. Development and Mechanistic Studies of ( E)-Selective Isomerization/Tandem Hydroarylation Reactions of Alkenes with a Nickel(0)/Phosphine Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00908] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hiroaki Iwamoto
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takuya Tsuruta
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| |
Collapse
|
36
|
Kostyukovich AY, Burykina JV, Eremin DB, Ananikov VP. Detection and Structural Investigation of Elusive Palladium Hydride Intermediates Formed from Simple Metal Salts. Inorg Chem 2021; 60:7128-7142. [PMID: 33949864 DOI: 10.1021/acs.inorgchem.1c00173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Mizoroki-Heck reaction is one of the most known and best studied catalytic transformations and has provided an outstanding driving force for the development of catalysis and synthetic applications. Three out of four classical Mizoroki-Heck catalytic cycle intermediates contain Pd-C bonds and are well known and studied in detail. However, a simple palladium hydride (which is formed after the product-releasing β-H-elimination step) is a kind of elusive intermediate in the Mizoroki-Heck reaction. In the present study, we performed a combined theoretical and mass spectrometry (MS) study of palladium hydride complexes [PdX2H]- (X = Cl, Br, and I), which are reactive intermediates in the Mizoroki-Heck reaction. Static and molecular dynamic calculations revealed that these species have a T-shaped structure with a trans-arrangement of halogen atoms. Other isomers of [PdX2H]- are unstable and easily rearrange into the T-shaped form or decompose. These palladium hydride intermediates were detected by MS in precatalyst activation using NaBH4, Et3N, and a solvent molecule as reducing agents. Online MS monitoring allowed the detection of [PdX2H]- species in the course of the Mizoroki-Heck reaction.
Collapse
Affiliation(s)
- Alexander Yu Kostyukovich
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Julia V Burykina
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Dmitry B Eremin
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia.,The Bridge@USC, University of Southern California, 1002 Childs Way, Los Angeles, California 90089-3502, United States
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| |
Collapse
|
37
|
Pandya C, Panicker RR, Senjaliya P, Hareendran MH, Anju P, Sarkar S, Bhat H, Jha PC, Rao KP, Smith GS, Sivaramakrishna A. Designing and synthesis of phosphine derivatives of Ru3(CO)12 – Studies on catalytic isomerization of 1-alkenes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
38
|
Haley HS, Payer SE, Papidocha SM, Clemens S, Nyenhuis J, Sarpong R. Bioinspired Diversification Approach Toward the Total Synthesis of Lycodine-Type Alkaloids. J Am Chem Soc 2021; 143:4732-4740. [PMID: 33729783 PMCID: PMC8017526 DOI: 10.1021/jacs.1c00457] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Indexed: 12/31/2022]
Abstract
Nitrogen heterocycles (azacycles) are common structural motifs in numerous pharmaceuticals, agrochemicals, and natural products. Many powerful methods have been developed and continue to be advanced for the selective installation and modification of nitrogen heterocycles through C-H functionalization and C-C cleavage approaches, revealing new strategies for the synthesis of targets containing these structural entities. Here, we report the first total syntheses of the lycodine-type Lycopodium alkaloids casuarinine H, lycoplatyrine B, lycoplatyrine A, and lycopladine F as well as the total synthesis of 8,15-dihydrohuperzine A through bioinspired late-stage diversification of a readily accessible common precursor, N-desmethyl-β-obscurine. Key steps in the syntheses include oxidative C-C bond cleavage of a piperidine ring in the core structure of the obscurine intermediate and site-selective C-H borylation of a pyridine nucleus to enable cross-coupling reactions.
Collapse
Affiliation(s)
| | | | | | | | | | - Richmond Sarpong
- Department of Chemistry, University
of California, Berkeley, California 94720, United States
| |
Collapse
|
39
|
Kim D, Pillon G, DiPrimio DJ, Holland PL. Highly Z-Selective Double Bond Transposition in Simple Alkenes and Allylarenes through a Spin-Accelerated Allyl Mechanism. J Am Chem Soc 2021; 143:3070-3074. [DOI: 10.1021/jacs.1c00856] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Daniel Kim
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Guy Pillon
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Daniel J. DiPrimio
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Patrick L. Holland
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| |
Collapse
|
40
|
Miura T, Oku N, Shiratori Y, Nagata Y, Murakami M. Stereo- and Enantioselective Synthesis of Propionate-Derived Trisubstituted Alkene Motifs. Chemistry 2021; 27:3861-3868. [PMID: 33277755 DOI: 10.1002/chem.202004930] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/03/2020] [Indexed: 12/14/2022]
Abstract
We report a new method for constructing propionate-derived trisubstituted alkene motifs in a stereoselective manner. 1-Substituted 1,1-di(pinacolatoboryl)-(E)-alk-2-enes are generated in situ from 1-substituted 1,1-di(pinacolatoboryl)alk-3-enes through ruthenium(II)-catalyzed double-bond transposition. These species undergo a chiral phosphoric acid catalyzed allylation reaction of aldehydes to produce the E isomers of anti-homoallylic alcohols. On the other hand, the corresponding Z isomers of anti-homoallylic alcohols are obtained when a dimeric palladium(I) complex is employed as the catalyst for this double-bond transposition. Thus, both E and Z isomers can be synthesized from the same starting materials. A B-C(sp2 ) bond remaining with the allylation product undergoes the Suzuki-Miyaura cross-coupling reaction to furnish a propionate-derived trisubstituted alkene motif in a stereo-defined form. The present method to construct the motifs with (E)- and (Z)-alkenes are successfully applied to the syntheses of (+)-isotrichostatic acid, (-)-isotrichostatin RK, and (+)-trichostatic acid, respectively.
Collapse
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Naoki Oku
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Yota Shiratori
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| |
Collapse
|
41
|
Markham TE, Kotze AC, Duggan PJ, Johnston MR. Reduction Chemistry of Natural Pyrethrins and Preliminary Insecticidal Activity of Reduced Pyrethrins. Aust J Chem 2021. [DOI: 10.1071/ch20302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The natural extract pyrethrum is an insecticidal oil derived from Tanacetum cinerariifolium that is commonly used in domestic and agricultural pesticides. The major constituents of the extract are the Pyrethrins, six esters that provide pyrethrum with its insecticidal properties. These Pyrethrins readily degrade through several environmental means and as such, there can be significant Pyrethrin losses during processing and long-term storage of pyrethrum-based insecticides. This work attempts to alleviate the effect of these degradative processes through the pursuit of stabilised Pyrethrins by chemically removing oxidatively sensitive functionality. Several reduced Pyrethrin analogues were produced and a method to convert the more sensitive Pyrethrins present in the pyrethrum concentrate into their respective more stable jasmolin counterparts, as a mixture with the over-reduced tetrahydropyrethrins, was developed. All other reduction processes abolished insecticidal activity against Lucilia cuprina larvae, whereas some isomerised analogues showed comparable potency with the individual natural pyrethrin esters. This work has revealed new insights into the structure–activity relationships in this unique class of insecticide.
Collapse
|
42
|
Shan Y, Su L, Chen D, Yang M, Xie W, Qiu G. Palladium-catalyzed concerted [4 + 1] cyclization of prop-2-yn-1-ones and isocyanides. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.04.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
43
|
Mou SB, Xiao W, Wang HQ, Chen KY, Xiang Z. Syntheses of the Carotane-type Terpenoids (+)-Schisanwilsonene A and (+)-Tormesol via a Two-Stage Approach. Org Lett 2020; 23:400-404. [DOI: 10.1021/acs.orglett.0c03894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shu-Bin Mou
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Wen Xiao
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Hua-Qi Wang
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Kai-Yue Chen
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zheng Xiang
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| |
Collapse
|
44
|
Yao YH, Yang HY, Chen M, Wu F, Xu XX, Guan ZH. Asymmetric Markovnikov Hydroaminocarbonylation of Alkenes Enabled by Palladium-Monodentate Phosphoramidite Catalysis. J Am Chem Soc 2020; 143:85-91. [DOI: 10.1021/jacs.0c11249] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ya-Hong Yao
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Hui-Yi Yang
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Ming Chen
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Fei Wu
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Xing-Xing Xu
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P.R. China
| |
Collapse
|
45
|
Kundu G, Sperger T, Rissanen K, Schoenebeck F. A Next-Generation Air-Stable Palladium(I) Dimer Enables Olefin Migration and Selective C-C Coupling in Air. Angew Chem Int Ed Engl 2020; 59:21930-21934. [PMID: 32810335 PMCID: PMC7756449 DOI: 10.1002/anie.202009115] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/04/2020] [Indexed: 12/17/2022]
Abstract
We report a new air-stable PdI dimer, [Pd(μ-I)(PCy2 t Bu)]2 , which triggers E-selective olefin migration to enamides and styrene derivatives in the presence of multiple functional groups and with complete tolerance of air. The same dimer also triggers extremely rapid C-C coupling (alkylation and arylation) at room temperature in a modular and triply selective fashion of aromatic C-Br, C-OTf/OFs, and C-Cl bonds in poly(pseudo)halogenated arenes, displaying superior activity over previous PdI dimer generations for substrates that bear substituents ortho to C-OTf.
Collapse
Affiliation(s)
- Gourab Kundu
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Theresa Sperger
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Kari Rissanen
- Department of ChemistryNanoscience CenterUniversity of Jyvaskyla40014JYUFinland
| | | |
Collapse
|
46
|
Kundu G, Sperger T, Rissanen K, Schoenebeck F. A Next‐Generation Air‐Stable Palladium(I) Dimer Enables Olefin Migration and Selective C−C Coupling in Air. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009115] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Gourab Kundu
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Theresa Sperger
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Kari Rissanen
- Department of Chemistry Nanoscience Center University of Jyvaskyla 40014 JYU Finland
| | - Franziska Schoenebeck
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
47
|
Yu X, Zhao H, Li P, Koh MJ. Iron-Catalyzed Tunable and Site-Selective Olefin Transposition. J Am Chem Soc 2020; 142:18223-18230. [DOI: 10.1021/jacs.0c08631] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaolong Yu
- Department of Chemistry, National University of Singapore, 12 Science Drive 2, Republic of Singapore 117549
| | - Haonan Zhao
- Department of Chemistry, National University of Singapore, 12 Science Drive 2, Republic of Singapore 117549
| | - Ping Li
- Department of Chemistry, National University of Singapore, 12 Science Drive 2, Republic of Singapore 117549
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, 12 Science Drive 2, Republic of Singapore 117549
| |
Collapse
|
48
|
Boehm P, Roediger S, Bismuto A, Morandi B. Palladium‐Catalyzed Chlorocarbonylation of Aryl (Pseudo)Halides Through In Situ Generation of Carbon Monoxide. Angew Chem Int Ed Engl 2020; 59:17887-17896. [DOI: 10.1002/anie.202005891] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/26/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Philip Boehm
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Sven Roediger
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Alessandro Bismuto
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| |
Collapse
|
49
|
Boehm P, Roediger S, Bismuto A, Morandi B. Palladium‐Catalyzed Chlorocarbonylation of Aryl (Pseudo)Halides Through In Situ Generation of Carbon Monoxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005891] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Philip Boehm
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Sven Roediger
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Alessandro Bismuto
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| |
Collapse
|
50
|
Dao-Huy T, Latkolik S, Bräuer J, Pfeil A, Stuppner H, Schnürch M, Dirsch VM, Mihovilovic MD. Structural Features Defining NF-κB Inhibition by Lignan-Inspired Benzofurans and Benzothiophenes. Biomolecules 2020; 10:biom10081131. [PMID: 32751917 PMCID: PMC7463992 DOI: 10.3390/biom10081131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 12/19/2022] Open
Abstract
A series of 2-arylbenzofurans and 2-arylbenzothiophenes was synthesized carrying three different side chains in position five. The synthesized compounds were tested for NF-κB inhibition to establish a structure activity relationship. It was found that both, the side chain in position five and the substitution pattern of the aryl moiety in position two have a significant influence on the inhibitory activity.
Collapse
Affiliation(s)
- Toan Dao-Huy
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria; (T.D.-H.); (M.D.M.)
- Department of Pharmaceutical and Pesticide Technology, School of Chemical Engineering, Hanoi University of Science and Technology, Dai Co Viet 1, Hai Ba Trung dist., Hanoi 10000, Vietnam
| | - Simone Latkolik
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria; (S.L.); (J.B.); (A.P.)
| | - Julia Bräuer
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria; (S.L.); (J.B.); (A.P.)
| | - Andreas Pfeil
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria; (S.L.); (J.B.); (A.P.)
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria;
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria; (T.D.-H.); (M.D.M.)
- Correspondence: (M.S.); (V.M.D.)
| | - Verena M. Dirsch
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria; (S.L.); (J.B.); (A.P.)
- Correspondence: (M.S.); (V.M.D.)
| | - Marko D. Mihovilovic
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria; (T.D.-H.); (M.D.M.)
| |
Collapse
|