1
|
De Jesús Cruz P, Johnson JS. Crystallization-Enabled Henry Reactions: Stereoconvergent Construction of Fully Substituted [ N]-Asymmetric Centers. J Am Chem Soc 2022; 144:15803-15811. [PMID: 35980759 PMCID: PMC9469918 DOI: 10.1021/jacs.2c06669] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tetrasubstituted stereogenic carbon centers bearing a nitrogen substituent represent important motifs in medicinal chemistry and natural products; therefore, the development of efficient methods for the stereoselective synthesis of this class of compounds continues to be an important problem. This article describes stereoconvergent Henry reactions of γ,γ-disubstituted nitroalkanes to deliver highly functionalized building blocks containing up to five contiguous stereogenic centers including a fully substituted [N]-asymmetric center. Henry reactions of higher order nitroalkanes are often characterized by their reversibility and minimal accompanying thermodynamic stereocontrol. In contrast, mechanistic studies for the present case suggest a scenario in which reversibility is productively leveraged through crystallization-based stereocontrol, thereby enabling the efficient sequential π-additions of readily accessible starting materials to assemble complex acyclic stereoarrays.
Collapse
Affiliation(s)
- Pedro De Jesús Cruz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| |
Collapse
|
2
|
Liu D, Wang J, Liu W, Zhang F, Zhou Y. Synthesis of Polycyclic Spiro Pyrrolidone Derivatives via DBU‐Catalyzed Diastereoselective Vinylogous Aldol‐Michael Cascade Reaction. ChemCatChem 2020. [DOI: 10.1002/cctc.202000463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Dandan Liu
- Chemistry and Environment Engineering CollegePingdingshan University Pingdingshan 475000 P. R. China
| | - Jiansheng Wang
- Chemistry and Environment Engineering CollegePingdingshan University Pingdingshan 475000 P. R. China
| | - Wenqin Liu
- School of Chemistry Chemical Engineering and Life SciencesWuhan University of Technology Wuhan 430070 P. R. China
| | - Fang‐Lin Zhang
- School of Chemistry Chemical Engineering and Life SciencesWuhan University of Technology Wuhan 430070 P. R. China
| | - Yirong Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy Tongji Medical CollegeHuazhong University of Science and Technology Wuhan 430030 P. R. China
| |
Collapse
|
3
|
An F, Maji B, Min E, Ofial AR, Mayr H. Basicities and Nucleophilicities of Pyrrolidines and Imidazolidinones Used as Organocatalysts. J Am Chem Soc 2020; 142:1526-1547. [DOI: 10.1021/jacs.9b11877] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Feng An
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Biplab Maji
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Elizabeth Min
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Armin R. Ofial
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Herbert Mayr
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| |
Collapse
|
4
|
Earla A, Walter ED, Braslau R. Synthesis and spin trapping properties of polystyrene supported trifluoromethylated cyclic nitrones. Free Radic Res 2019; 53:1084-1100. [PMID: 31739700 PMCID: PMC10805450 DOI: 10.1080/10715762.2019.1683171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/08/2019] [Accepted: 10/10/2019] [Indexed: 01/21/2023]
Abstract
Polystyrene supported fluorinated cyclic nitrone spin-traps: Resin-2-HFDMPO (2-hydroxymethyl-2-methyl-5-(trifluoromethyl)-3,4-dihydro-2H-pyrrole-1-oxide) and Resin-2-PFDMPO (2-(3-hydroxypropyl)-2-methyl-5-(trifluoromethyl)-3,4-dihydro-2H-pyrrole 1-oxide) containing a trifluoromethyl pyrroline-N-oxide core were developed to detect free radicals under flow conditions. A continuous flow EPR technique was used to evaluate the spin trapping properties of these tethered nitrones. While both resins trapped radicals, polymer supported nitrone Resin-2-PFDMPO with a longer and more flexible linker showed a more information rich spectrum than Resin-2-HFDMPO.
Collapse
Affiliation(s)
- Aruna Earla
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Eric D. Walter
- Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Rebecca Braslau
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| |
Collapse
|
5
|
Pei JP, Chen YH, Liu YK. Asymmetric Organocatalytic Sequential Reaction of Structurally Complex Cyclic Hemiacetals and Functionalized Nitro-olefins To Synthesize Diverse Heterocycles. Org Lett 2018; 20:3609-3612. [PMID: 29863888 DOI: 10.1021/acs.orglett.8b01386] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Structurally complex cyclic hemiacetals bearing a racemic tetrasubstituted stereocenter have been prepared in a concise manner and were successfully used in an organocatalytic enantioselective sequence to react with functionalized nitro-olefins, providing bicyclic acetal-containing compounds as two separable epimers with excellent stereoselectivity. The reaction showed broad substrate scope, with respect to the starting hemiacetals. Moreover, this protocol allows the synthetic transformation of the products to various interesting heterocyclic compounds with substantial structural diversity and broad functionality.
Collapse
Affiliation(s)
- Jun-Ping Pei
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Ying-Han Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Yan-Kai Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266003 , People's Republic of China
| |
Collapse
|
6
|
Vetica F, Chauhan P, Dochain S, Enders D. Asymmetric organocatalytic methods for the synthesis of tetrahydropyrans and their application in total synthesis. Chem Soc Rev 2018; 46:1661-1674. [PMID: 28262863 DOI: 10.1039/c6cs00757k] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advancement in the area of asymmetric organocatalysis led to the development of new methodologies for the construction of valuable enantiopure molecules, including various heterocycles. As one of the latter class of compounds tetrahydropyrans (THPs) constitute a core structure of a wide array of bioactive natural products. A noticeable growth has been observed in the asymmetric synthesis of THPs using small organic molecules as catalysts. This Tutorial Review describes the organocatalytic methods available to furnish THPs as well as the application of these methodologies in the total synthesis of THP-based natural products.
Collapse
Affiliation(s)
- Fabrizio Vetica
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Pankaj Chauhan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Simon Dochain
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| |
Collapse
|
7
|
Zhou Y, Yang Q, Shen J, Chen X, Peng Y, Gong Y. Merging Asymmetric Henry Reaction with Organocatalytic Cascade Reaction for the Construction of a Chiral Indolizidine Alkaloid Skeleton. J Org Chem 2015; 80:1446-56. [DOI: 10.1021/jo502379v] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yirong Zhou
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Qin Yang
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Jian Shen
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Xin Chen
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Yiyuan Peng
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| |
Collapse
|
8
|
Gurubrahamam R, Cheng YS, Chen K. Control of Five Contiguous Stereogenic Centers in an Organocatalytic Kinetic Resolution via Michael/Acetalization Sequence: Synthesis of Fully Substituted Tetrahydropyranols. Org Lett 2015; 17:430-3. [DOI: 10.1021/ol5033656] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ramani Gurubrahamam
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - You-Song Cheng
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| |
Collapse
|
9
|
Hu J, Deng Z, Zhang X, Zhang F, Zheng H. Synthesis of benzofuro[2,3-c]pyridines via a one-pot three-component reaction. Org Biomol Chem 2014; 12:4885-9. [DOI: 10.1039/c4ob00670d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient one-pot synthesis of polysubstituted benzofuro[2,3-c]pyridines by three-component is developed. It provides a flexible and rapid synthetic route for the construction of benzofuro[2,3-c]pyridines under mild and metal-free reaction conditions in moderate to good yields (up to 83%).
Collapse
Affiliation(s)
- Jiaxing Hu
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Wuhan University of Technology
- Wuhan, China
| | - Zhihong Deng
- Key Laboratory of Functional Small organic molecule
- Ministry of Education
- Jiangxi Normal University
- Nanchang, China
| | - Xueqiong Zhang
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Wuhan University of Technology
- Wuhan, China
| | - Fanglin Zhang
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Wuhan University of Technology
- Wuhan, China
- Key Laboratory of Functional Small organic molecule
| | - Hua Zheng
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Wuhan University of Technology
- Wuhan, China
| |
Collapse
|
10
|
Goudedranche S, Bugaut X, Constantieux T, Bonne D, Rodriguez J. α,β-Unsaturated Acyl Cyanides as New Bis-Electrophiles for Enantioselective Organocatalyzed Formal [3+3]Spiroannulation. Chemistry 2013; 20:410-5. [DOI: 10.1002/chem.201303613] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Indexed: 11/05/2022]
|
11
|
Asymmetric organocatalytic Michael–hemiacetalization reaction: access to chiral spiro cis-δ-lactones by in situ oxidation of spiro δ-lactols. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
12
|
Wang Y, Zhu S, Ma D. Organocatalytic Approach to Polysubstituted Piperidines and Tetrahydropyrans. Org Lett 2011; 13:1602-5. [DOI: 10.1021/ol200004s] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- You Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China, and State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Shaolin Zhu
- Department of Chemistry, Fudan University, Shanghai 200433, China, and State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Dawei Ma
- Department of Chemistry, Fudan University, Shanghai 200433, China, and State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| |
Collapse
|