1
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Wu F, Chang J, Bai D. Synthesis of Sterically Hindered Dialkyl Ethers via Palladium-Catalyzed Fluoro-alkoxylation of gem-Difluoroalkenes. Org Lett 2024; 26:4953-4957. [PMID: 38815137 DOI: 10.1021/acs.orglett.4c01541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Organofluorine compounds are of high value in medicinal and agricultural chemistry. Herein, we report a palladium-catalyzed fluoro-alkoxylation of gem-difluoroalkenes for the synthesis of much more challenging sterically hindered ethers. This reaction represents a direct synthesis method for α-trifluoromethyl ethers with a broad functional group tolerance and excellent regioselectivity. This system employs N-fluorobenzenesulfonimide (NFSI) as an electrophilic fluorine source and alcohols as nucleophilic donors, including but not limited to sterically hindered tert-substituted alcohols.
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Affiliation(s)
- Fen Wu
- State Key Laboratory of Antiviral Drugs, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- State Key Laboratory of Antiviral Drugs, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan 453007, China
| | - Dachang Bai
- State Key Laboratory of Antiviral Drugs, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan 453007, China
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2
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Chaudhary D, Kuram MR. Regio- and Stereoselective Hexafluoroisopropoxylation and Trifluoroethoxylation of Allenamides. J Org Chem 2024; 89:7347-7351. [PMID: 38163927 DOI: 10.1021/acs.joc.3c02457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Incorporating fluorinated moieties into organic molecules is an attractive strategy to enhance drug-like properties. Herein, we have developed a simple and self-promoted protocol for hexafluoroisopropoxylation and trifluoroethoxylation of allenamides with fluorinated alcohols such as HFIP and TFE. The reaction provided the fluoroalkoxylated products in a regio- and stereoselective manner in good to moderate yields under mild conditions.
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Affiliation(s)
- Dhananjay Chaudhary
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Malleswara Rao Kuram
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Xu ZW, Wang S. Access to Chiral O,O-Acetals Enabled by Palladium-Catalyzed Asymmetric Addition of Oximes to Alkoxyallenes. Chemistry 2023; 29:e202301883. [PMID: 37653541 DOI: 10.1002/chem.202301883] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/19/2023] [Accepted: 08/31/2023] [Indexed: 09/02/2023]
Abstract
Enantiomerically pure acyclic O,O-acetal compounds (up to 97 % ee) have been accessed through chemo-, regio- and enantioselective palladium-catalyzed addition of oximes to alkoxyallenes. DFT calculations support that a protonative hydropalladation pathway is favourable, in which the hydrogen bonding interaction between the amide group of the diphosphine ligand and the alkoxyallene is critical for the highly stereoselective formation of the dioxygenated stereogenic center.
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Affiliation(s)
- Zhuo-Wei Xu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, 210023, Nanjing, Jiangsu, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, 210023, Nanjing, Jiangsu, China
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4
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Yang SQ, Han AJ, Liu Y, Tang XY, Lin GQ, He ZT. Catalytic Asymmetric Hydroalkoxylation and Formal Hydration and Hydroaminoxylation of Conjugated Dienes. J Am Chem Soc 2023; 145:3915-3925. [PMID: 36763785 DOI: 10.1021/jacs.2c11843] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The straightforward construction of stereogenic centers bearing unprotected functional groups, as in nature, has been a persistent pursuit in synthetic chemistry. Abundant applications of free enantioenriched allyl alcohol and allyl hydroxylamine motifs have made the asymmetric hydration and hydroaminoxylation of conjugated dienes from water and hydroxylamine, respectively, intriguing and efficient routes that have, however, been unachievable thus far. A fundamental challenge is the failure to realize transition-metal-catalyzed enantioselective C-O bond constructions via hydrofunctionalization of conjugated dienes. Here, we perform a comprehensive study toward the stereoselective formal hydration and hydroaminoxylation of conjugated dienes by synthesizing a set of new P,N-ligands and identifying an aryl-derived oxime as a surrogate for both water and hydroxylamine. Asymmetric hydroalkoxylation with new P,N-ligands is also elucidated. Furthermore, versatile derivatizations following hydration provide indirect but concise routes to formal hydrophenoxylation, hydrofluoroalkoxylation, and hydrocarboxylation of conjugated dienes that have been unreported thus far. Finally, a ligand-to-ligand hydrogen transfer process is proposed based on the results of preliminary mechanistic experiments.
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Affiliation(s)
- Shao-Qian Yang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Ai-Jun Han
- 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
| | - Xin-Yuan Tang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Guo-Qiang Lin
- 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
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5
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Li Q, Wang Z, Dong VM, Yang XH. Enantioselective Hydroalkoxylation of 1,3-Dienes via Ni-Catalysis. J Am Chem Soc 2023; 145:3909-3914. [PMID: 36763788 PMCID: PMC9951252 DOI: 10.1021/jacs.2c12779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Indexed: 02/12/2023]
Abstract
As an advance in hydrofunctionalization, we herein report that alcohols add to 1,3-dienes with high regio- and enantioselectivity. Using Ni-DuPhos, we access enantioenriched allylic ethers. Through the choice of solvent-free conditions, we control the reversibility of C-O bond formation. This work showcases a rare example of methanol as a reagent in asymmetric synthesis.
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Affiliation(s)
- Qi Li
- Advanced
Research Institute of Multidisciplinary Science, School of Chemistry
and Chemical Engineering, Key Laboratory of Medical Molecule Science
and Pharmaceutical Engineering, Ministry of Industry and Information
Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Zhen Wang
- Advanced
Research Institute of Multidisciplinary Science, School of Chemistry
and Chemical Engineering, Key Laboratory of Medical Molecule Science
and Pharmaceutical Engineering, Ministry of Industry and Information
Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Vy M. Dong
- Department
of Chemistry, University of California−Irvine, Irvine, California 92697, United States
| | - Xiao-Hui Yang
- Advanced
Research Institute of Multidisciplinary Science, School of Chemistry
and Chemical Engineering, Key Laboratory of Medical Molecule Science
and Pharmaceutical Engineering, Ministry of Industry and Information
Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
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6
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Lin HC, Knox GJ, Pearson CM, Yang C, Carta V, Snaddon TN. A Pd-H/Isothiourea Cooperative Catalysis Approach to anti-Aldol Motifs: Enantioselective α-Alkylation of Esters with Oxyallenes. Angew Chem Int Ed Engl 2022; 61:e202201753. [PMID: 35307949 DOI: 10.1002/anie.202201753] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Indexed: 12/11/2022]
Abstract
The biological and therapeutic significance of natural products is a powerful impetus for the development of efficient methods to facilitate their construction. Accordingly, and reflecting the prevalence of β-oxy-carbonyl motifs, a sophisticated arsenal of aldol-based strategies has evolved that is contingent on the generation of single enolate isomers. Since this has the potential to compromise efficiency in reagent-based paradigms, direct catalysis-based solutions would be enabling. To complement the array of substrate-based strategies, and regulate enolate geometry at the catalyst level, a direct catalytic alkylation of esters with oxyallenes has been developed. Synergizing metal hydride reactivity with Lewis base catalysis has resulted in a broad reaction scope with useful levels of stereocontrol (up to >99 % ee). Facile derivatization of these ambiphilic linchpins is demonstrated, providing access to high-value vicinal stereocenter-containing motifs, including 1,2-amino alcohols.
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Affiliation(s)
- Hua-Chen Lin
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN 47405, USA.,Current address: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Gary J Knox
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN 47405, USA
| | - Colin M Pearson
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN 47405, USA
| | - Chao Yang
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN 47405, USA
| | - Veronica Carta
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN 47405, USA
| | - Thomas N Snaddon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN 47405, USA
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7
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Alam K, Li T, Hyatt IFD, Croatt MP. AlCl 3-catalyzed regioselective intermolecular α or γ mono- or α,γ bis-hydroalkoxylation of allenamides with alcohols. Org Biomol Chem 2022; 20:4719-4723. [PMID: 35660842 DOI: 10.1039/d2ob00844k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regioselective intermolecular mono- or bis-hydroalkoxylation of allenamides with alcohols using simple aluminum-catalyzed reaction conditions is reported. When the reaction was carried out with 1.1 equivalents of alcohol at 50 °C, N,O-acetals were generated by 1,2-addition of an alcohol. An increase in temperature to 80 °C leads to γ-substituted ethers by an intermolecular isomerization process. Treatment with an excess of alcohol (3 equiv.) at 50 °C gave 1,3-bis(alkoxy)propanamines. The reactions exhibited good functional group tolerance and efficiency, affording the products in moderate to good yields.
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Affiliation(s)
- Khyarul Alam
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, 435 Sullivan Science Building, Greensboro, North Carolina 27402, USA.
| | - Tian Li
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, 435 Sullivan Science Building, Greensboro, North Carolina 27402, USA.
| | - I F Dempsey Hyatt
- Department of Chemistry and Biochemistry, Adelphi University, 1 South Ave., Garden City, New York, 11530, USA
| | - Mitchell P Croatt
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, 435 Sullivan Science Building, Greensboro, North Carolina 27402, USA.
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8
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Lin H, Knox GJ, Pearson CM, Yang C, Carta V, Snaddon TN. A Pd−H/Isothiourea Cooperative Catalysis Approach to
anti
‐Aldol Motifs: Enantioselective α‐Alkylation of Esters with Oxyallenes**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hua‐Chen Lin
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
- Current address: School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 P. R. China
| | - Gary J. Knox
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Colin M. Pearson
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Chao Yang
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Veronica Carta
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Thomas N. Snaddon
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
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9
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Kennemur J, Maji R, Scharf MJ, List B. Catalytic Asymmetric Hydroalkoxylation of C-C Multiple Bonds. Chem Rev 2021; 121:14649-14681. [PMID: 34860509 PMCID: PMC8704240 DOI: 10.1021/acs.chemrev.1c00620] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Indexed: 01/30/2023]
Abstract
Asymmetric hydroalkoxylation of alkenes constitutes a redox-neutral and 100% atom-economical strategy toward enantioenriched oxygenated building blocks from readily available starting materials. Despite their great potential, catalytic enantioselective additions of alcohols across a C-C multiple bond are particularly underdeveloped, especially compared to other hydrofunctionalization methods such as hydroamination. However, driven by some recent innovations, e.g., asymmetric MHAT methods, asymmetric photocatalytic methods, and the development of extremely strong chiral Brønsted acids, there has been a gratifying surge of reports in this burgeoning field. The goal of this review is to survey the growing landscape of asymmetric hydroalkoxylation by highlighting exciting new advances, deconstructing mechanistic underpinnings, and drawing insight from related asymmetric hydroacyloxylation and hydration. A deep appreciation of the underlying principles informs an understanding of the various selectivity parameters and activation modes in the realm of asymmetric alkene hydrofunctionalization while simultaneously evoking the outstanding challenges to the field moving forward. Overall, we aim to lay a foundation for cross-fertilization among various catalytic fields and spur further innovation in asymmetric hydroalkoxylations of C-C multiple bonds.
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Affiliation(s)
| | | | - Manuel J. Scharf
- Max-Planck-Institut für
Kohlenforschung, Kaiser Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für
Kohlenforschung, Kaiser Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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10
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Yang Z, Wang J(J. Enantioselective Palladium‐Catalyzed Hydrophosphinylation of Allenes with Phosphine Oxides: Access to Chiral Allylic Phosphine Oxides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202112285] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhiping Yang
- Department of Chemistry Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Jun (Joelle) Wang
- Department of Chemistry Southern University of Science and Technology Shenzhen Guangdong 518055 China
- Department of Chemistry Hong Kong Baptist University Kowloon, Hong Kong China
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11
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Yang Z, Wang JJ. Enantioselective Palladium-Catalyzed Hydrophosphinylation of Allenes with Phosphine Oxides: Access to Chiral Allylic Phosphine Oxides. Angew Chem Int Ed Engl 2021; 60:27288-27292. [PMID: 34581469 DOI: 10.1002/anie.202112285] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/23/2021] [Indexed: 12/15/2022]
Abstract
A Pd-catalyzed hydrophosphinylation of alkyl and aryl-oxyallenes with phosphine oxides has been developed for the efficient and rapid construction of a family of chiral allylic phosphine oxides with a diverse range of functional groups. This methodology was further applied in the facile construction of chiral 2H-chromene and later stage functionalization of cholesterol.
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Affiliation(s)
- Zhiping Yang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jun Joelle Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.,Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
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12
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Gao Z, Yan CX, Qian J, Yang H, Zhou P, Zhang J, Jiang G. Enantioselective Synthesis of Axially Chiral Sulfonamides via Atroposelective Hydroamination of Allenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01345] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zeng Gao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao-Xian Yan
- College of Chemistry and Chemical Engineering, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Jinlong Qian
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Huameng Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Panpan Zhou
- College of Chemistry and Chemical Engineering, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Jinlong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Gaoxi Jiang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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13
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Kim M, Rhee YH. Catalytic Asymmetric Synthesis of Hexahydro-furofuran-3-ol and Its Pyran Derivatives. Org Lett 2021; 23:3584-3587. [PMID: 33872024 DOI: 10.1021/acs.orglett.1c00981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalytic asymmetric synthesis of hexahydro-furofuran-3-ol, a key fragment of HIV protease inhibitors, is reported. A signature event is represented by the sequential metal catalysis that combines the Pd-catalyzed asymmetric hydroalkoxylation of ene-alkoxyallene and ring-closing metathesis (RCM). Notably, this unprecedented and highly chemoselective approach allows for a unified access to pyranofuranol and furopyranol derivatives.
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Affiliation(s)
- Mijin Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk, Republic of Korea 37673
| | - Young Ho Rhee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk, Republic of Korea 37673
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14
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Blieck R, Taillefer M, Monnier F. Metal-Catalyzed Intermolecular Hydrofunctionalization of Allenes: Easy Access to Allylic Structures via the Selective Formation of C–N, C–C, and C–O Bonds. Chem Rev 2020; 120:13545-13598. [DOI: 10.1021/acs.chemrev.0c00803] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rémi Blieck
- Institut Charles Gerhardt Montpellier UMR 5253, Université Montpellier, CNRS, ENSCM, 8 rue de l’Ecole Normale, Montpellier 34296, Cedex 5, France
| | - Marc Taillefer
- Institut Charles Gerhardt Montpellier UMR 5253, Université Montpellier, CNRS, ENSCM, 8 rue de l’Ecole Normale, Montpellier 34296, Cedex 5, France
| | - Florian Monnier
- Institut Charles Gerhardt Montpellier UMR 5253, Université Montpellier, CNRS, ENSCM, 8 rue de l’Ecole Normale, Montpellier 34296, Cedex 5, France
- Institut Universitaire de France, IUF, 1 rue Descartes, 75231 Paris, cedex 5, France
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15
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Yasui M, Yamada A, Tsukano C, Hamza A, Pápai I, Takemoto Y. Enantioselective Acetalization by Dynamic Kinetic Resolution for the Synthesis of γ‐Alkoxybutenolides by Thiourea/Quaternary Ammonium Salt Catalysts: Application to Strigolactones. Angew Chem Int Ed Engl 2020; 59:13479-13483. [DOI: 10.1002/anie.202002129] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/23/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Motohiro Yasui
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
| | - Ayano Yamada
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
| | - Andrea Hamza
- Institute of Organic Chemistry Research Centre for Natural Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Imre Pápai
- Institute of Organic Chemistry Research Centre for Natural Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
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16
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Yasui M, Yamada A, Tsukano C, Hamza A, Pápai I, Takemoto Y. Enantioselective Acetalization by Dynamic Kinetic Resolution for the Synthesis of γ‐Alkoxybutenolides by Thiourea/Quaternary Ammonium Salt Catalysts: Application to Strigolactones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Motohiro Yasui
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
| | - Ayano Yamada
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
| | - Andrea Hamza
- Institute of Organic Chemistry Research Centre for Natural Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Imre Pápai
- Institute of Organic Chemistry Research Centre for Natural Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
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17
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Hu J, Pan S, Zhu S, Yu P, Xu R, Zhong G, Zeng X. Pd-Catalyzed Dearomative Asymmetric Allylic Alkylation of Naphthols with Alkoxyallenes. J Org Chem 2020; 85:7896-7904. [DOI: 10.1021/acs.joc.0c00582] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jinjin Hu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Shulei Pan
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Shuai Zhu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Peiyuan Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ruigang Xu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Guofu Zhong
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Xiaofei Zeng
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
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18
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Palladium-catalyzed regioselective cascade reaction of carbon dioxide, amines and allenes for the synthesis of functionalized carbamates. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9679-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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19
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Philippova AN, Vorobyeva DV, Monnier F, Osipov SN. Synthesis of α-CF3-substituted E-dehydroornithine derivatives via copper(i)-catalyzed hydroamination of allenes. Org Biomol Chem 2020; 18:3274-3280. [DOI: 10.1039/d0ob00580k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel α-CF3-substituted E-dehydroornithine derivatives have been synthesized via the Cu(i)-catalyzed hydroamination of α-CF3-α-allenyl-α-aminocarboxylates/phosphonates with different amines.
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Affiliation(s)
- Anna N. Philippova
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Daria V. Vorobyeva
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Florian Monnier
- Institut Charles Gerhardt Montpellier UMR 5253
- Univ. Montpellier
- CNRS
- ENSCM
- Montpellier 34296 Cedex 5
| | - Sergey N. Osipov
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 119991 Moscow
- Russia
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20
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Li G, Huo X, Jiang X, Zhang W. Asymmetric synthesis of allylic compounds via hydrofunctionalisation and difunctionalisation of dienes, allenes, and alkynes. Chem Soc Rev 2020; 49:2060-2118. [DOI: 10.1039/c9cs00400a] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review article provides an overview of progress in asymmetric synthesis of allylic compounds via hydrofunctionalisation and difunctionalisation of dienes, allenes, and alkynes.
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Affiliation(s)
- Guanlin Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xieyang Jiang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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21
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Blieck R, Taillefer M, Monnier F. Copper-Catalyzed Hydrocarboxylation of N-Allenyl Derivatives. J Org Chem 2019; 84:11247-11252. [DOI: 10.1021/acs.joc.9b01510] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Rémi Blieck
- Ecole Nationale Supérieure de Chimie de Montpellier, Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N, 8 rue de l’Ecole Normale, Montpellier 34296 Cedex 5, France
| | - Marc Taillefer
- Ecole Nationale Supérieure de Chimie de Montpellier, Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N, 8 rue de l’Ecole Normale, Montpellier 34296 Cedex 5, France
| | - Florian Monnier
- Ecole Nationale Supérieure de Chimie de Montpellier, Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N, 8 rue de l’Ecole Normale, Montpellier 34296 Cedex 5, France
- Institut Universitaire de France, IUF, 1 rue Descartes, 75231 Paris cedex 5, France
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22
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Singh PK, Silakari O. The Current Status of O-Heterocycles: A Synthetic and Medicinal Overview. ChemMedChem 2018; 13:1071-1087. [PMID: 29603634 DOI: 10.1002/cmdc.201800119] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 03/23/2018] [Indexed: 12/20/2022]
Abstract
O-Heterocycles have been explored in the field of medicinal chemistry for a long time, but their significance has not been duly recognised and they are often shunned in favour of N-heterocycles. The design of bioactive molecules for nearly every pathophysiological condition is primarily focused on novel N-heterocycles. The main reasons for such bias include the ease of synthesis and possible mimicking of physiological molecules by N-heterocycles. But considering only this criterion rarely provides breakthrough molecules for a given disease condition, and instead the risks of toxicity or side effects are increased with such molecules. On the other hand, owing to improved synthetic feasibility, O-heterocycles have established themselves as equally potent lead molecules for a wide range of pathophysiological conditions. In the last decade there have been hundreds of reports validating the fact that equally potent molecules can be designed and developed by using O-heterocycles, and these are also expected to have comparably low toxicity. Even so, researchers tend to remain biased toward the use of N-heterocycles over O-heterocycles. Thus, this review provides a critical analysis of the synthesis and medicinal attributes of O-heterocycles, such as pyrones, oxazolones, furanones, oxetanes, oxazolidinones, and dioxolonones, and others, reported in the last five years, underlining the need for and the advantages guiding researchers toward them.
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Affiliation(s)
- Pankaj Kumar Singh
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Om Silakari
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
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23
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Blieck R, Abed Ali Abdine R, Taillefer M, Monnier F. Regio- and Stereoselective Copper-Catalyzed Allylation of 1,3-Dicarbonyl Compounds with Terminal Allenes. Org Lett 2018; 20:2232-2235. [PMID: 29600714 DOI: 10.1021/acs.orglett.8b00575] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Simple ligand-free copper systems were found as efficient catalysts for the addition of 1,3-dicarbonyl compounds to N-allenyl derivatives. This highly regio- and stereoselective reaction has been accomplished in the presence of malonates, 1,3-ketoesters, and 1,3-diketones with good to excellent yields under mild conditions. This methodology represents the first allylation of 1,3-dicarbonyl compounds with allenes catalyzed by copper.
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Affiliation(s)
- Rémi Blieck
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France
| | - Racha Abed Ali Abdine
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France
| | - Marc Taillefer
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France
| | - Florian Monnier
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France.,Institut Universitaire de France, IUF , 1 rue Descartes , 75231 Paris cedex 5 , France
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24
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Li S, Lv J, Luo S. Enantioselective indium(i)-catalyzed [4 + 2] annulation of alkoxyallenes and β,γ-unsaturated α-keto esters. Org Chem Front 2018. [DOI: 10.1039/c8qo00319j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An indium(i)–chiral phosphoric acid complex was found to catalyze the enantioselective [4 + 2] annulation reaction of β,γ-unsaturated α-keto esters with alkoxyallenes, affording cyclic O,O-acetals in good yields and with high regio- and stereo-selectivities.
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Affiliation(s)
- Sujia Li
- Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Jian Lv
- Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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25
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Midya A, Maity S, Ghorai P. Dynamic Kinetic Spiroketalization/Oxa-Michael Addition Cascade of Alkoxyboronates and Peroxyacetals: Enantio- and Diastereoselective Synthesis of Benzannulated Spiroketals. Chemistry 2017. [DOI: 10.1002/chem.201701291] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Abhisek Midya
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal 462066 India
| | - Sanjay Maity
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal 462066 India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal 462066 India
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26
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Zhou H, Wang Y, Zhang L, Cai M, Luo S. Enantioselective Terminal Addition to Allenes by Dual Chiral Primary Amine/Palladium Catalysis. J Am Chem Soc 2017; 139:3631-3634. [PMID: 28238267 DOI: 10.1021/jacs.7b00437] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We herein describe a synergistic chiral primary amine/achiral palladium catalyzed enantioselective terminal addition to allenes with α-branched β-ketocarbonyls and aldehydes. The reactions afford allylic adducts bearing acyclic all-carbon quaternary centers with high regio- and enantioselectivity. A wide range of allenes including those aliphatic or 1,1'-disubstituted could be employed, thus expanding the scope of typical asymmetric allylic alkylation reactions.
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Affiliation(s)
- Han Zhou
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Yaning Wang
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Long Zhang
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Mao Cai
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
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27
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Zhou H, Wei Z, Zhang J, Yang H, Xia C, Jiang G. From Palladium to Brønsted Acid Catalysis: Highly Enantioselective Regiodivergent Addition of Alkoxyallenes to Pyrazolones. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610473] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hui Zhou
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences (CAS); Lanzhou 730000 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Zhao Wei
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences (CAS); Lanzhou 730000 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Jinlong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences (CAS); Lanzhou 730000 P.R. China
| | - Huameng Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences (CAS); Lanzhou 730000 P.R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences (CAS); Lanzhou 730000 P.R. China
| | - Gaoxi Jiang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences (CAS); Lanzhou 730000 P.R. China
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28
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Zhou H, Wei Z, Zhang J, Yang H, Xia C, Jiang G. From Palladium to Brønsted Acid Catalysis: Highly Enantioselective Regiodivergent Addition of Alkoxyallenes to Pyrazolones. Angew Chem Int Ed Engl 2016; 56:1077-1081. [PMID: 28035786 DOI: 10.1002/anie.201610473] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Indexed: 12/11/2022]
Abstract
A highly enantioselective regiodivergent addition of alkoxyallenes to pyrazolones was developed to afford multiply functionalized alkylated products bearing a quaternary carbon stereocenter in high yields with excellent stereoselectivities. One approach is enabled by palladium catalysis, thus leading to branched allylic pyrazol-5-ones under mild reaction conditions. The other is catalyzed by a chiral Brønsted acid to give linear products exclusively. Moreover, the usefulness of this new method was highlighted by converting the allylic products into other interesting multifunctionalized pyrazolone derivatives which would be of great potential for the exploitation of pharmaceutically important molecules.
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Affiliation(s)
- Hui Zhou
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Zhao Wei
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Jinlong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P.R. China
| | - Huameng Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P.R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P.R. China
| | - Gaoxi Jiang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P.R. China
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29
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Maity S, Parhi B, Ghorai P. Enantio- and Diastereoselective Synthesis ofexo-Peroxyacetals: An Organocatalyzed Peroxyhemiacetalization/oxa-Michael Addition Cascade. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511165] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sanjay Maity
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Biswajit Parhi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
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30
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Maity S, Parhi B, Ghorai P. Enantio- and Diastereoselective Synthesis ofexo-Peroxyacetals: An Organocatalyzed Peroxyhemiacetalization/oxa-Michael Addition Cascade. Angew Chem Int Ed Engl 2016; 55:7723-7. [DOI: 10.1002/anie.201511165] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 01/04/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Sanjay Maity
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Biswajit Parhi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
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31
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Khomutnyk YY, Argüelles AJ, Winschel GA, Sun Z, Zimmerman PM, Nagorny P. Studies of the Mechanism and Origins of Enantioselectivity for the Chiral Phosphoric Acid-Catalyzed Stereoselective Spiroketalization Reactions. J Am Chem Soc 2015; 138:444-56. [DOI: 10.1021/jacs.5b12528] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yaroslav Ya. Khomutnyk
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Alonso J. Argüelles
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Grace A. Winschel
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Zhankui Sun
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Paul M. Zimmerman
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Pavel Nagorny
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
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