1
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Jin S, Xu T, Tang Y, Wang JY, Wang Y, Pan J, Zhang S, Yuan Q, Rahman AU, Aquino AJA, Lischka H, Li G. A new chiral phenomenon of orientational chirality, its synthetic control and computational study. Front Chem 2023; 10:1110240. [PMID: 36688043 PMCID: PMC9850238 DOI: 10.3389/fchem.2022.1110240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 12/19/2022] [Indexed: 01/07/2023] Open
Abstract
A new type of chirality, orientational chirality, consisting of a tetrahedron center and a remotely anchored blocker, has been discovered. The key structural element of this chirality is characterized by multiple orientations directed by a through-space functional group. The multi-step synthesis of orientational chiral targets was conducted by taking advantage of asymmetric nucleophilic addition, Suzuki-Miyaura cross-coupling and Sonogashira coupling. An unprecedented catalytic species showing a five-membered ring consisting of C (sp2)-Br-Pd-C (sp2) bonds was isolated during performing Suzuki-Miyaura cross-coupling. X-ray diffraction analysis confirmed the species structure and absolute configuration of chiral orientation products. Based on X-ray structures, a model was proposed for the new chirality phenomenon to differentiate the present molecular framework from previous others. DFT computational study presented the relative stability of individual orientatiomers. This discovery would be anticipated to result in a new stereochemistry branch and to have a broad impact on chemical, biomedical, and material sciences in the future.
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Affiliation(s)
- Shengzhou Jin
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Ting Xu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Jia-Yin Wang
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu, China
| | - Yu Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Junyi Pan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Qingkai Yuan
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Anis Ur Rahman
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Adelia J. A. Aquino
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, United States
| | - Hans Lischka
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States,*Correspondence: Guigen Li, ; Hans Lischka,
| | - Guigen Li
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States,*Correspondence: Guigen Li, ; Hans Lischka,
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2
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Quintavalla A, Veronesi R, Zambardino D, Carboni D, Lombardo M. Diastereoselective Synthesis of Chiral Oxathiazine 2‐Oxide Scaffolds as Sulfinyl Transfer Agents. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Arianna Quintavalla
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Center for Chemical Catalysis-C3 Via Selmi 2 40126 Bologna Italy
| | - Ruben Veronesi
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Center for Chemical Catalysis-C3 Via Selmi 2 40126 Bologna Italy
| | - Demetra Zambardino
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Center for Chemical Catalysis-C3 Via Selmi 2 40126 Bologna Italy
| | - Davide Carboni
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Center for Chemical Catalysis-C3 Via Selmi 2 40126 Bologna Italy
| | - Marco Lombardo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Center for Chemical Catalysis-C3 Via Selmi 2 40126 Bologna Italy
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3
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Ushakov P, Ioffe S, Sukhorukov AY. Recent advances in the application of ylide-like species in [4+1]-annulation reactions: an update review. Org Chem Front 2022. [DOI: 10.1039/d2qo00698g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review, advances in [4+1]‐annulation reactions involving sulfonium, sulfoxonium and ammonium ylides, as well as diazo compounds and carbenes are summarized over the last 6 years. Newly emerged methods...
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4
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Jin S, Wang Y, Tang Y, Wang JY, Xu T, Pan J, Zhang S, Yuan Q, Rahman AU, McDonald JD, Wang GQ, Li S, Li G. Orientational Chirality, Its Asymmetric Control, and Computational Study. RESEARCH 2022. [DOI: 10.34133/research.0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Orientational chirality was discovered and characterized by a C(sp)–C(sp
3
) axis-anchored chiral center and a remotely anchored blocker. X-ray structural analysis proved that orientatiomers are stabilized by through-space functional groups, making it possible for 1
R
- or
S
-chiral center to exhibit 3 orientational isomers simply by rotating operations. A new model system was proposed, fundamentally different from the traditional Felkin–Ahn-type or Cram-type models. In these traditional models, chiral C(sp
3
) center and blocking C(sp
2
) carbons are connected adjacently, and there exist 6 energy barriers during rotating along the C(sp
2
)−C(sp
3
) axis. In comparison, the present orientational chirality model shows that a chiral C(sp)–C(sp
3
) carbon is remotely located from a blocking group. Thus, it is focused on the steric dialog between a chiral C(sp
3
) center and a remotely anchored functional group. There exist 3 energy barriers for either (
R
)– or (
S
)–C(sp)–C(sp
3
) stereogenicity in the new model. Chiral amide auxiliary was proven to be an excellent chiral auxiliary in controlling rotations of orientatiomers to give complete stereoselectivity. The asymmetric synthesis of individual orientatiomers was conducted via multistep synthesis by taking advantage of the Suzuki–Miyaura cross-coupling and Sonogashira coupling reactions. Density functional theory computational study presented optimized conformers and relative energies for individual orientatiomers. This discovery would be anticipated to result in a new stereochemistry topic and have a broad impact on chemical, biomedical, and material sciences in the future.
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Affiliation(s)
- Shengzhou Jin
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yu Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - Jia-Yin Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Ting Xu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Junyi Pan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - Qiankai Yuan
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - Anis Ur Rahman
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - James D. McDonald
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - Guo-Qiang Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Shuhua Li
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Guigen Li
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
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5
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Hellwig PS, Barcellos AM, Furst CG, Alberto EE, Perin G. Oxyselenocyclization of 2‐Allylphenols for the Synthesis of 2,3‐Dihydrobenzofuran Selenides. ChemistrySelect 2021. [DOI: 10.1002/slct.202104072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paola S. Hellwig
- Laboratório de Síntese Orgânica Limpa – LASOL CCQFA Universidade Federal de Pelotas – UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
| | - Angelita M. Barcellos
- Laboratório de Síntese Orgânica Limpa – LASOL CCQFA Universidade Federal de Pelotas – UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
| | - Carolina G. Furst
- Department of Chemistry Universidade Federal de Minas Gerais - UFMG Belo Horizonte MG Brazil
| | - Eduardo E. Alberto
- Department of Chemistry Universidade Federal de Minas Gerais - UFMG Belo Horizonte MG Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa – LASOL CCQFA Universidade Federal de Pelotas – UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
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Rouh H, Tang Y, Zhang S, Ali AIM, Surowiec K, Unruh D, Li G. Asymmetric [4 + 2] cycloaddition synthesis of 4 H-chromene derivatives facilitated by group-assisted-purification (GAP) chemistry. RSC Adv 2021; 11:39790-39796. [PMID: 35494146 PMCID: PMC9044656 DOI: 10.1039/d1ra08323f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/06/2021] [Indexed: 12/13/2022] Open
Abstract
In this work, we present a strategy for the preparation of functionalized 4H-chromene derivatives via a Cs2CO3-catalyzed [4 + 2] cycloaddition of enantiopure chiral salicyl N-phosphonyl imines with allenoates. Fifteen examples were achieved in excellent yields and diastereoselectivity. The products were purified simply by washing the crude mixture with hexanes following the Group-Assisted Purification (GAP) chemistry/technology to bypass traditional separation methods. The absolute configuration was unambiguously determined by X-ray structure analysis. A new asymmetric method for the synthesis of highly functionalized 4H-chromenes was developed via Group-Assisted Purification (GAP) chemistry and shown in good to high yield and excellent diastereoselectivity.![]()
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Affiliation(s)
- Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
| | - Ahmed I M Ali
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
| | - Kazimierz Surowiec
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University Lubbock Texas 79409-1061 USA
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7
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Rouh H, Tang Y, Zhang S, Ali AIM, Unruh D, Surowiec K, Li G. Asymmetric synthesis of functionalized 2,3-dihydrobenzofurans using salicyl N-phosphonyl imines facilitated by group-assisted purification (GAP) chemistry. Org Biomol Chem 2021; 19:10319-10325. [PMID: 34812831 DOI: 10.1039/d1ob02078a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this work, we present a strategy for the preparation of functionalized 2,3-dihydrobenzofuran derivatives via the Cs2CO3-catalyzed domino annulation of enantiopure chiral salicyl N-phosphonyl imines with bromo malonates, which offers an avenue for the construction of 2,3-dihydrobenzofurans. Nineteen examples were synthesized in impressive chemical yields and diastereoselectivity. The products were purified simply by washing the crude mixtures with hexanes following group-assisted purification chemistry/technology to bypass traditional separation methods which often result in a loss of product. The absolute configuration was unambiguously assigned by X-ray structural analysis.
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Affiliation(s)
- Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
| | - Ahmed I M Ali
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
| | - Kazimierz Surowiec
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.
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Man N, Li Y, Jie J, Li H, Yang H, Zhao Y, Fu H. Synthesis of Chiral Propargylamines, Chiral 1,2-Dihydronaphtho[2,1-b]furans and Naphtho[2,1-b]furans with C-Alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals and β-Naphthols. Chemistry 2021; 27:12884-12889. [PMID: 34133047 DOI: 10.1002/chem.202102040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 12/21/2022]
Abstract
Chiral phosphoric acid-catalyzed couplings of C-alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals with β-naphthols led to chiral propargylamines in moderate to high yields with high to excellent enantioselectivity, in which the reactions underwent sequential chiral phosphoric acid-catalyzed in situ formation of N-(tert-butoxycarbonyl)-imines (N-Boc-imines) from the aminals, and 1,2-addition of β-naphthols to the N-Boc-imines. Chiral 1,2-dihydronaphtho[2,1-b]furans and naphtho[2,1-b]furans were prepared with satisfactory results when 10 mol% AgOAc and 20 mol% 2,6-lutidine or 1.2 equiv. of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) were added to the resulting chiral propargylamines solution, respectively.
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Affiliation(s)
- Ningning Man
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuming Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiyang Jie
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongyun Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yufen Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
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9
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Korzhenko KS, Osipov DV, Osyanin VА, Demidov MR, Klimochkin YN. Oxidative rearrangement of 3-aryl-1H-benzo[f]chromenes into 2-aroyl-1,2-dihydronaphtho[2,1-b]furans. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02949-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Zhang YX, Chen LY, Wei BG. Diastereoconvergent synthesis of chiral sulfoxides containing vicinal amino alcohol framework. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Chen W, Luo F, Wu Y, Cen J, Shao J, Yu Y. Efficient access to fluorescent benzofuro[3,2-b]carbazoles via TFA-promoted cascade annulations of sulfur ylides, 2-hydroxy-β-nitrostyrenes and indoles. Org Chem Front 2020. [DOI: 10.1039/d0qo00137f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient, TFA-promoted cascade annulation of sulfur ylides, 2-hydroxy-β-nitrostyrenes and indoles was established.
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Affiliation(s)
- Wenteng Chen
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | - Feng Luo
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | - You Wu
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | - Jie Cen
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | - Jiaan Shao
- School of Medicine
- Zhejiang University City College
- Hangzhou
- P. R. China
| | - Yongping Yu
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
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