1
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Cunningham CC, Panger JL, Lupi M, Denmark SE. Organoselenium-Catalyzed Enantioselective Synthesis of 2-Oxazolidinones from Alkenes. Org Lett 2024; 26:6703-6708. [PMID: 39082836 DOI: 10.1021/acs.orglett.4c02377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
An operationally simple method for generating enantioenriched 2-oxazolidinones from N-Boc amines and mono- or trans-disubstituted alkenes via chiral organoselenium catalysis is described. Critical to the success of the transformation was the inclusion of triisopropylsilyl chloride (TIPSCl), likely because it sequestered fluoride generated by the oxidant (N-fluorocollidinium tetrafluoroborate) throughout the reaction and suppressed side reactivity. The scope of both the amine and alkene substrates was explored, generating a variety of 2-oxazolidinones in modest to high yields with high enantioselectivities.
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Affiliation(s)
- Carter C Cunningham
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Urbana, Illinois 61801, United States
| | - Jesse L Panger
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Urbana, Illinois 61801, United States
| | - Michela Lupi
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Urbana, Illinois 61801, United States
- Department of Chemistry "Ugo Schiff" (DICUS), University of Florence, Via della Lastruccia 13, Sesto Fiorentino (FI), 50019 Florence, Italy
| | - Scott E Denmark
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Urbana, Illinois 61801, United States
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2
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Lei T, Appleson T, Breder A. Intermolecular Aza-Wacker Coupling of Alkenes with Azoles by Photo-Aerobic Selenium-π-Acid Multicatalysis. ACS Catal 2024; 14:9586-9593. [PMID: 38933469 PMCID: PMC11197018 DOI: 10.1021/acscatal.4c01327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024]
Abstract
Herein, the intermolecular, photoaerobic aza-Wacker coupling of azoles with alkenes by means of dual and ternary selenium-π-acid multicatalysis is presented. The title method permits an expedited avenue toward a broad scope of N-allylated azoles and representative azinones under mild conditions with broad functional group tolerance, as is showcased in more than 60 examples including late-stage drug derivatizations. From a regiochemical perspective, the protocol is complementary to cognate photoredox catalytic olefin aminations, as they typically proceed through either allylic hydrogen atom abstraction or single electron oxidation of the alkene substrate. These methods predominantly result in C-N bond formations at the allylic periphery of the alkene or the less substituted position of the former π-bond (i.e., anti-Markovnikov selectivity). The current process, however, operates through a radical-polar crossover mechanism, which solely affects the selenium catalyst, thus allowing the alkene to be converted strictly through an ionic two-electron transfer regime under Markovnikov control. In addition, it is shown that the corresponding N-vinyl azoles can also be accessed by sequential or one-pot treatment of the allylic azoles with base, thus emphasizing the exquisite utility of this method.
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Affiliation(s)
| | | | - Alexander Breder
- Institut für Organische
Chemie, Universität Regensburg, Universitätstrasse 31, 93053 Regensburg, Germany
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3
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Moon H, Jung J, Choi JH, Chung WJ. Stereospecific syn-dihalogenations and regiodivergent syn-interhalogenation of alkenes via vicinal double electrophilic activation strategy. Nat Commun 2024; 15:3710. [PMID: 38697968 PMCID: PMC11066093 DOI: 10.1038/s41467-024-47942-w] [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: 01/20/2024] [Accepted: 04/12/2024] [Indexed: 05/05/2024] Open
Abstract
Whereas the conventional anti-dihalogenation of alkenes is a valuable synthetic tool with highly predictable stereospecificity, the restricted reaction mechanism makes it challenging to alter the diastereochemical course into the complementary syn-dihalogenation process. Only a few notable achievements were made recently by inverting one of the stereocenters after anti-addition using a carefully designed reagent system. Here, we report a conceptually distinctive strategy for the simultaneous double electrophilic activation of the two alkene carbons from the same side. Then, the resulting vicinal leaving groups can be displaced iteratively by nucleophilic halides to complete the syn-dihalogenation. For this purpose, thianthrenium dication is employed, and all possible combinations of chlorine and bromine are added onto internal alkenes successfully, particularly resulting in the syn-dibromination and the regiodivergent syn-bromochlorination.
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Affiliation(s)
- Hyeon Moon
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Jungi Jung
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Jun-Ho Choi
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
| | - Won-Jin Chung
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
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4
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Stadel JT, Back TG. Asymmetric Synthesis with Organoselenium Compounds - The Past Twelve Years. Chemistry 2024; 30:e202304074. [PMID: 38199954 DOI: 10.1002/chem.202304074] [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: 12/06/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/12/2024]
Abstract
The discovery and synthetic applications of novel organoselenium compounds and their reactions proceeded rapidly during the past fifty years and such processes are now carried out routinely in many laboratories. At the same time, the growing demand for new enantioselective processes provided new challenges. The convergence of selenium chemistry and asymmetric synthesis led to key developments in the 1970s, although the majority of early work was based on stoichiometric processes. More recently, greater emphasis has been placed on greener catalytic variations, along with the discovery of novel reactions and a deeper understanding of their mechanisms. The present review covers the literature in this field from 2010 to early 2023 and encompasses asymmetric reactions mediated by chiral selenium-based reagents, auxiliaries, and especially, catalysts. Protocols based on achiral selenium compounds in conjunction with other species of chiral catalysts, as well as reactions that are controlled by chiral substrates, are also included.
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Affiliation(s)
- Jessica T Stadel
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada, T2N 1N4
| | - Thomas G Back
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada, T2N 1N4
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5
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Lai S, Liang X, Zeng Q. Recent Progress in Synthesis and Application of Chiral Organoselenium Compounds. Chemistry 2024; 30:e202304067. [PMID: 38078625 DOI: 10.1002/chem.202304067] [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: 12/06/2023] [Indexed: 01/12/2024]
Abstract
Chiral organoselenium compounds have shown an important role as intermediates in many areas, such as drug discovery, organic catalysis, and nanomaterials. A lot of different methods have been developed to synthesize chiral compounds which contain selenium, because they have interesting properties and can be used in real life. Over the last few decades, a lot of progress has been made in synthesizing chiral organoselenium compounds. This work gives an overview of the progress made in creating new ways to synthesize chiral organoselenium compounds by categorizing them into groups based on the reactions they undergo. In addition, the use of chiral organoselenium compounds is also discussed.
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Affiliation(s)
- Shuyan Lai
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
| | - Xiayu Liang
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
| | - Qingle Zeng
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
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6
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da Costa GP, Blödorn GB, Barcellos AM, Alves D. Recent Advances in the Use of Diorganyl Diselenides as Versatile Catalysts. Molecules 2023; 28:6614. [PMID: 37764391 PMCID: PMC10534850 DOI: 10.3390/molecules28186614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
The importance of organoselenium compounds has been increasing in synthetic chemistry. These reagents are well-known as electrophiles and nucleophiles in many organic transformations, and in recent years, their functionality as catalysts has also been largely explored. The interest in organoselenium-based catalysts is due to their high efficacy, mild reaction conditions, strong functional compatibility, and great selectivity. Allied to organoselenium catalysts, the use of inorganic and organic oxidants that act by regenerating the catalytic species for the reaction pathway is common. Here, we provide a comprehensive review of the last five years of organic transformations promoted by diorganyl diselenide as a selenium-based catalyst. This report is divided into four sections: (1) cyclisation reactions, (2) addition reactions and oxidative functionalisation, (3) oxidation and reduction reactions, and (4) reactions involving phosphorus-containing starting materials.
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Affiliation(s)
- Gabriel Pereira da Costa
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas 96010-900, Brazil;
| | - Gustavo Bierhals Blödorn
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas 96010-900, Brazil;
| | - Angelita Manke Barcellos
- Escola de Química e Alimentos, Universidade Federal do Rio Grande (FURG), Rio Grande 96203-900, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas 96010-900, Brazil;
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7
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Lubaev A, Rathnayake MD, Eze F, Bayeh-Romero L. Catalytic Chemo-, Regio-, Diastereo-, and Enantioselective Bromochlorination of Unsaturated Systems Enabled by Lewis Base-Controlled Chloride Release. J Am Chem Soc 2022; 144:13294-13301. [PMID: 35820071 PMCID: PMC9945878 DOI: 10.1021/jacs.2c04588] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A new strategy is described for the Lewis base-catalyzed bromochlorination of unsaturated systems that is mechanistically distinct from prior methodologies. The novelty of this method hinges on the utilization of thionyl chloride as a latent chloride source in combination with as little as 1 mol % of triphenylphosphine or triphenylphosphine oxide as Lewis basic activators. This metal-free, catalytic chemo-, regio-, and diastereoselective bromochlorination of alkenes and alkynes exhibits excellent site selectivity in polyunsaturated systems and provides access to a wide variety of vicinal bromochlorides with up to >20:1 regio- and diastereoselectivity. The precision installation of Br, Cl, and I in various combinations is also demonstrated by simply varying the commercial halogenating reagents employed. Notably, when a chiral Lewis base promoter is employed, an enantioselective bromochlorination of chalcones is possible with up to a 92:8 enantiomeric ratio when utilizing only 1-3 mol % of (DHQD)2PHAL.
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8
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Yuan F, Zhao Y, Guo Q, Yin F, Lai J, Nian B, Zhang M, Tang E. Synthesis of 1-[1-(Amino)cyclopropyl]ketones by Tandem Reaction Involving Vinyl Selenium Salt. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Abstract
The first example for the electrochemical cis-dichlorination of alkenes is presented. The reaction can be performed with little experimental effort by using phenylselenyl chloride as catalyst and tetrabutylammoniumchloride as supporting electrolyte, which also acts as nucleophilic reagent for the SN 2-type replacement of selenium versus chloride. Cyclic voltammetric measurements and control experiments revealed a dual role of phenylselenyl chloride in the reaction. Based on these results a reaction mechanism was postulated, where the key step of the process is the activation of a phenylselenyl chloride-alkene adduct by electrochemically generated phenylselenyl trichloride. Like this, different aliphatic and aromatic cyclic and acyclic alkenes were converted to the dichlorinated products. Thereby, throughout high diastereoselectivities were achieved for the cis-chlorinated compounds of >95 : 5 or higher.
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Affiliation(s)
- Julia Strehl
- Institut für ChemieUniversität OldenburgCarl-von-Ossietzky-Straße 9–1126111OldenburgGermany
| | - Cornelius Fastie
- Institut für ChemieUniversität OldenburgCarl-von-Ossietzky-Straße 9–1126111OldenburgGermany
| | - Gerhard Hilt
- Institut für ChemieUniversität OldenburgCarl-von-Ossietzky-Straße 9–1126111OldenburgGermany
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10
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Iordanidis NS, Zografos AL, Gallos JK, Koftis TV, Stathakis CI. Continuous Flow Organocatalytic Chlorination of Alkenes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nicolaos S. Iordanidis
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
| | - Alexandros L. Zografos
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
| | - John K. Gallos
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
| | - Theocharis V. Koftis
- API Research and Development Operations Pharmathen S.A. 9th km Thessaloniki-Thermi Thessaloniki 570 01 Greece
| | - Christos I. Stathakis
- Department of Chemistry Aristotle University of Thessaloniki University Campus Thessaloniki 541 24 Greece
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11
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Mumford EM, Hemric BN, Denmark SE. Catalytic, Enantioselective Syn-Oxyamination of Alkenes. J Am Chem Soc 2021; 143:13408-13417. [PMID: 34375090 DOI: 10.1021/jacs.1c06750] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The chemo-, regio-, diastereo-, and enantioselective 1,2-oxyamination of alkenes using selenium(II/IV) catalysis with a chiral diselenide catalyst is reported. This method uses N-tosylamides to generate oxazoline products that are useful both as protected 1,2-amino alcohol motifs and as chiral ligands. The reaction proceeds in good yields with excellent enantio- and diastereoselectivity for a variety of alkenes and pendant functional groups such as sulfonamides, alkyl halides, and glycol-protected ketones. Furthermore, the rapid generation of oxazoline products is demonstrated in the expeditious assembly of chiral PHOX ligands as well as diversely protected amino alcohols.
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Affiliation(s)
- Emily M Mumford
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Brett N Hemric
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
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12
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13
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Makhal PN, Nandi A, Kaki VR. Insights into the Recent Synthetic Advances of Organoselenium Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202004029] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Priyanka N. Makhal
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Arijit Nandi
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Venkata Rao Kaki
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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14
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Bock J, Guria S, Wedek V, Hennecke U. Enantioselective Dihalogenation of Alkenes. Chemistry 2021; 27:4517-4530. [DOI: 10.1002/chem.202003176] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/01/2020] [Indexed: 01/17/2023]
Affiliation(s)
- Jonathan Bock
- Organic Chemistry Research Group (ORGC) Department of Chemistry and Department of Bioengineering Sciences Vrije Universiteit Brussel (VUB) Pleinlaan 2 1050 Brussels Belgium
| | - Sudip Guria
- Organic Chemistry Research Group (ORGC) Department of Chemistry and Department of Bioengineering Sciences Vrije Universiteit Brussel (VUB) Pleinlaan 2 1050 Brussels Belgium
| | - Volker Wedek
- Organic Chemistry Research Group (ORGC) Department of Chemistry and Department of Bioengineering Sciences Vrije Universiteit Brussel (VUB) Pleinlaan 2 1050 Brussels Belgium
| | - Ulrich Hennecke
- Organic Chemistry Research Group (ORGC) Department of Chemistry and Department of Bioengineering Sciences Vrije Universiteit Brussel (VUB) Pleinlaan 2 1050 Brussels Belgium
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15
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Steigerwald DC, Soltanzadeh B, Sarkar A, Morgenstern CC, Staples RJ, Borhan B. Ritter-enabled catalytic asymmetric chloroamidation of olefins. Chem Sci 2020; 12:1834-1842. [PMID: 34163947 PMCID: PMC8179065 DOI: 10.1039/d0sc05224h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Intermolecular asymmetric haloamination reactions are challenging due to the inherently high halenium affinity (HalA) of the nitrogen atom, which often leads to N-halogenated products as a kinetic trap. To circumvent this issue, acetonitrile, possessing a low HalA, was used as the nucleophile in the catalytic asymmetric Ritter-type chloroamidation of allyl-amides. This method is compatible with Z and E alkenes with both alkyl and aromatic substitution. Mild acidic workup reveals the 1,2-chloroamide products with enantiomeric excess greater than 95% for many examples. We also report the successful use of the sulfonamide chlorenium reagent dichloramine-T in this chlorenium-initiated catalytic asymmetric Ritter-type reaction. Facile modifications lead to chiral imidazoline, guanidine, and orthogonally protected 1,2,3 chiral tri-amines. Intermolecular haloamination reactions are challenging due to the high halenium affinity of the nitrogen atom. This is circumvented by using acetonitrile as an attenuated nucleophile, resulting in an enantioselective halo-Ritter reaction.![]()
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Affiliation(s)
| | - Bardia Soltanzadeh
- Michigan State University, Department of Chemistry East Lansing MI 48824 USA
| | - Aritra Sarkar
- Michigan State University, Department of Chemistry East Lansing MI 48824 USA
| | | | - Richard J Staples
- Michigan State University, Department of Chemistry East Lansing MI 48824 USA
| | - Babak Borhan
- Michigan State University, Department of Chemistry East Lansing MI 48824 USA
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16
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Lian P, Long W, Li J, Zheng Y, Wan X. Visible‐Light‐Induced Vicinal Dichlorination of Alkenes through LMCT Excitation of CuCl
2. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010801] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Wenhao Long
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Jingjing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
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17
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Lian P, Long W, Li J, Zheng Y, Wan X. Visible‐Light‐Induced Vicinal Dichlorination of Alkenes through LMCT Excitation of CuCl
2. Angew Chem Int Ed Engl 2020; 59:23603-23608. [DOI: 10.1002/anie.202010801] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Indexed: 01/31/2023]
Affiliation(s)
- Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Wenhao Long
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Jingjing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 P. R. China
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18
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Beleh OM, Miller E, Toste FD, Miller SJ. Catalytic Dynamic Kinetic Resolutions in Tandem to Construct Two-Axis Terphenyl Atropisomers. J Am Chem Soc 2020; 142:16461-16470. [PMID: 32857500 DOI: 10.1021/jacs.0c08057] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The defined structure of molecules bearing multiple stereogenic axes is of increasing relevance to materials science, pharmaceuticals, and catalysis. However, catalytic enantioselective approaches to control multiple stereogenic axes remain synthetically challenging. We report the catalytic synthesis of two-axis terphenyl atropisomers, with complementary strategies to both chlorinated and brominated variants, formed with high diastereo- and enantioselectivity. The chemistry proceeds through a sequence of two distinct dynamic kinetic resolutions: first, an atroposelective ring opening of Bringmann-type lactones produces a product with one established axis of chirality, and second, a stereoselective arene halogenation delivers the product with the second axis of chirality established. In order to achieve these results, a class of Brønsted basic guanidinylated peptides, which catalyze an efficient atroposelective chlorination, is reported for the first time. In addition, a complementary bromination is reported, which also establishes the second stereogenic axis. These bromo-terphenyls are accessible following the discovery that chiral anion phase transfer catalysis by C2-symmetric phosphoric acids allows catalyst control in the second stereochemistry-determining event. Accordingly, we established the fully catalyst-controlled stereodivergent synthesis of all possible chlorinated stereoisomers while also demonstrating diastereodivergence in the brominated variants, with significant levels of enantioselectivity in all cases.
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Affiliation(s)
- Omar M Beleh
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Edward Miller
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - F Dean Toste
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Scott J Miller
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
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19
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Ding R, Huang S, Wang Q, Liu Y, Sun B, Tian H. Dichlorination of olefins with diphenyl sulfoxide/oxalyl chloride. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1774901] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rui Ding
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Shuai Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Qiyi Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
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20
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Choi G, Kim HE, Hwang S, Jang H, Chung WJ. Phosphorus(III)-Mediated, Tandem Deoxygenative Geminal Chlorofluorination of 1,2-Diketones. Org Lett 2020; 22:4190-4195. [DOI: 10.1021/acs.orglett.0c01258] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Garam Choi
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Ha Eun Kim
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Sunjoo Hwang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Hanna Jang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Won-jin Chung
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
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Toledano-Pinedo M, Martínez del Campo T, Tiemblo M, Fernández I, Almendros P. Organoseleno-Catalyzed Synthesis of α,β-Unsaturated α′-Alkoxy Ketones from Allenes Enabled by Se···O Interactions. Org Lett 2020; 22:3979-3984. [DOI: 10.1021/acs.orglett.0c01288] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mireia Toledano-Pinedo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Quı́mica Orgánica, Unidad Asociada al CSIC, Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Teresa Martínez del Campo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Quı́mica Orgánica, Unidad Asociada al CSIC, Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Marta Tiemblo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Quı́mica Orgánica, Unidad Asociada al CSIC, Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Israel Fernández
- Departamento de Quı́mica Orgánica and Centro de Innovación en Quı́mica Avanzada (ORFEO−CINQA), Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Pedro Almendros
- Instituto de Quı́mica Orgánica General, IQOG, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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Tao Z, Gilbert BB, Denmark SE. Catalytic, Enantioselective syn-Diamination of Alkenes. J Am Chem Soc 2019; 141:19161-19170. [PMID: 31742399 DOI: 10.1021/jacs.9b11261] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The enantioselective, vicinal diamination of alkenes represents one of the stereocontrolled additions that remains an outstanding challenge in organic synthesis. A general solution to this problem would enable the efficient and selective preparation of widely useful, enantioenriched diamines for applications in medicinal chemistry and catalysis. In this article, we describe the first enantioselective, syn-diamination of simple alkenes mediated by a chiral, enantioenriched organoselenium catalyst together with a N,N'-bistosyl urea as the bifunctional nucleophile and N-fluorocollidinium tetrafluoroborate as the stoichiometric oxidant. Diaryl, aryl-alkyl, and alkyl-alkyl olefins bearing a variety of substituents are all diaminated in consistently high enantioselectivities but variable yields. The reaction likely proceeds through a Se(II)/Se(IV) redox catalytic cycle reminiscent of the syn-dichlorination reported previously. Furthermore, the syn-stereospecificity of the transformation shows promise for highly enantioselective diaminations of alkenes with no strong steric or electronic bias.
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Affiliation(s)
- Zhonglin Tao
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Bradley B Gilbert
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
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23
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Ángel AYB, Bragança EF, Alberto EE. Dichlorination of Alkenes Using 1,3‐Dichloro‐5,5‐Dimethylhydantoin and ZnCl
2. ChemistrySelect 2019. [DOI: 10.1002/slct.201902568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Alix Y. Bastidas Ángel
- Department of ChemistryFederal University of Minas Gerais, Belo Horizonte 31.270-901 MG Brazil
| | - Emanuella F. Bragança
- Department of ChemistryFederal University of Minas Gerais, Belo Horizonte 31.270-901 MG Brazil
| | - Eduardo E. Alberto
- Department of ChemistryFederal University of Minas Gerais, Belo Horizonte 31.270-901 MG Brazil
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24
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Sarie JC, Neufeld J, Daniliuc CG, Gilmour R. Catalytic Vicinal Dichlorination of Unactivated Alkenes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02313] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jérôme C. Sarie
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Jessica Neufeld
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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