1
|
Zhang X, Wang D, Chang M, Wang W, Shen Z, Xu X. CuBr-mediated synthesis of 1,4-naphthoquinones via ring expansion of 2-aryl-1,3-indandiones. Chem Commun (Camb) 2023; 59:12326-12329. [PMID: 37753616 DOI: 10.1039/d3cc03753c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
A CuBr-mediated direct insertion of alkenes into unstrained ring 2-aryl-1,3-indandiones is reported, which provides a one-carbon ring expansion strategy for the synthesis of 1,4-naphthoquinones. Entirely differing from the existing reports, the alkenes herein behave as C1 units to participate in annulation reactions. This transformation provides a facile route to access a class of highly functionalized 1,4-naphthoquinones with good yields, good functional-group tolerance and high atom-economy. Further research on the application of this reaction is currently underway in our laboratory.
Collapse
Affiliation(s)
- Xu Zhang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Di Wang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Mengfan Chang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Wanya Wang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Zhi Shen
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Xuefeng Xu
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
| |
Collapse
|
2
|
Rodríguez-Franco C, Ros A, Merino P, Fernández R, Lassaletta JM, Hornillos V. Dynamic Kinetic Resolution of Indole-Based Sulfenylated Heterobiaryls by Rhodium-Catalyzed Atroposelective Reductive Aldol Reaction. ACS Catal 2023; 13:12134-12141. [PMID: 37745194 PMCID: PMC10513111 DOI: 10.1021/acscatal.3c03422] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/26/2023] [Indexed: 09/26/2023]
Abstract
A highly enantio- and diastereoselective dynamic kinetic resolution (DKR) of configurationally labile 3-aryl indole-2-carbaldehydes is described. The DKR proceeds via a Rh-catalyzed intermolecular asymmetric reductive aldol reaction with acrylate esters, with simultaneous generation of three stereogenic elements. The strategy relies on the labilization of the stereogenic axis that takes place thanks to a transient Lewis acid-base interaction (LABI) between the formyl group and a thioether moiety strategically located at the ortho' position. The atropisomeric indole products present a high degree of functionalization and can be further converted to a series of axially chiral derivatives, thereby expanding their potential application in drug discovery and asymmetric catalysis.
Collapse
Affiliation(s)
- Carlos Rodríguez-Franco
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Abel Ros
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Pedro Merino
- Instituto
de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Rosario Fernández
- Departamento
de Química Orgánica, Universidad
de Sevilla and Centro de Innovación en Química Avanzada
(ORFEO−CINQA), C/Prof. García González, 1, 41012 Sevilla, Spain
| | - José M. Lassaletta
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Valentín Hornillos
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
- Departamento
de Química Orgánica, Universidad
de Sevilla and Centro de Innovación en Química Avanzada
(ORFEO−CINQA), C/Prof. García González, 1, 41012 Sevilla, Spain
| |
Collapse
|
3
|
Roos CB, Chiang CH, Murray LAM, Yang D, Schulert L, Narayan ARH. Stereodynamic Strategies to Induce and Enrich Chirality of Atropisomers at a Late Stage. Chem Rev 2023; 123:10641-10727. [PMID: 37639323 DOI: 10.1021/acs.chemrev.3c00327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Enantiomers, where chirality arises from restricted rotation around a single bond, are atropisomers. Due to the unique nature of the origins of their chirality, synthetic strategies to access these compounds in an enantioselective manner differ from those used to prepare enantioenriched compounds containing point chirality arising from an unsymmetrically substituted carbon center. In particular stereodynamic transformations, such as dynamic kinetic resolutions, thermodynamic dynamic resolutions, and deracemizations, which rely on the ability to racemize or interconvert enantiomers, are a promising set of transformations to prepare optically pure compounds in the late stage of a synthetic sequence. Translation of these synthetic approaches from compounds with point chirality to atropisomers requires an expanded toolbox for epimerization/racemization and provides an opportunity to develop a new conceptual framework for the enantioselective synthesis of these compounds.
Collapse
|
4
|
Dong Y, Luo LX, Hua C, He ZJ, Chen Y, Shi ZC, Li ZH, He B. 'On Water'-Promoted Three-Component Tandem Michael Addition/D-A Cycloaddition Reaction to Construct Polycyclic N-Heterocycles Derivatives. Chem Biodivers 2023; 20:e202300100. [PMID: 36930226 DOI: 10.1002/cbdv.202300100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/01/2023] [Indexed: 03/18/2023]
Abstract
'On Water'-promoted the three-component tandem Michael addition/D-A cycloaddition reaction in 80 °C at 3 h has been developed without employing any catalyst and organic solvent. The process allows facile access to polycyclic N-heterocycles derivatives contain indole and maleimide from easily accessible starting materials in moderate to high yields (up to 91 %). Compared with conventional reaction conditions, this reaction not only improves the reaction efficiency and rate but also minimizes the side reaction.
Collapse
Affiliation(s)
- Yu Dong
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Liang-Xian Luo
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Chen Hua
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Ze-Jing He
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Yong Chen
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Zhi-Chuan Shi
- Southwest Minzu University, Chengdu, 610041, P. R. China
| | - Zhong-Hui Li
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| | - Bing He
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, P. R. China
| |
Collapse
|
5
|
Zhang Q, Yang Y, Liu Y. Recognition mechanism of imidazo[1,5-α]pyridine-based fluorescence probe towards thiophenols with multi-mechanisms of PET and ESIPT. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
6
|
Pokidova OV, Novikova VO, Emel'yanova NS, Kormukhina AY, Kulikov AV, Utenyshev AN, Lazarenko VA, Ovanesyan NS, Starostina AA, Sanina NA. A nitrosyl iron complex with 3.4-dichlorothiophenolyl ligands: synthesis, structures and its reactions with targets - carriers of nitrogen oxide (NO) in vivo. Dalton Trans 2023; 52:2641-2662. [PMID: 36744818 DOI: 10.1039/d2dt04047f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In this work, a new binuclear nitrosyl complex with 3.4-dichlorothiophenolyl ligands [Fe2(SC6H3Cl2)2(NO)4] has been synthesized. Nitrosyl iron complexes (NICs) are systems for the storage and delivery of NO in the body. There is a dynamic equilibrium between dinitrosyl iron units bound to low molecular weight ligands and high molecular weight (protein) ligands in vivo. From this point of view, the transformation of the studied complex in DMSO and buffer, as well as in biological systems, has been analyzed. In DMSO, it decomposes into mononuclear NICs, which quickly decay in buffer solutions with NO release. The high molecular weight product is formed as a result of the binding of the complex to bovine serum albumin (the Stern-Volmer constant is 2.1 × 105 M-1). In this case, the complex becomes a prolonged NO-donor. Such a long-term effect has been observed for the first time. Similarly, in a system with oxyhemoglobin, NO generation is slower; the UV-vis spectra show a gradual formation of methemoglobin. On the other hand, reduced glutathione has little effect on the NO-donor properties of the complex despite the fact that ligand substitution is observed in the system and a binuclear product is formed. Mucin binds the complex, and the decomposition mechanism is different from that for buffer solutions. Thus, these proteins and glutathione are able to participate in the transformation of the complex and modulate its properties as a potential drug.
Collapse
Affiliation(s)
- Olesya V Pokidova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation.
| | - Veronika O Novikova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation.
| | - Nina S Emel'yanova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation.
| | - Alexandra Yu Kormukhina
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation. .,Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University M.V. Lomonosov, Leninskie gory, 1., 119991 Moscow, Russian Federation
| | - Alexander V Kulikov
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation. .,Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University M.V. Lomonosov, Leninskie gory, 1., 119991 Moscow, Russian Federation
| | - Andrey N Utenyshev
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation.
| | - Vladimir A Lazarenko
- National Research Center 'Kurchatov Institute', pl. Academician Kurchatov, 1, 123182, Moscow, Russian Federation
| | - Nikolai S Ovanesyan
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation.
| | - Arina A Starostina
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University M.V. Lomonosov, Leninskie gory, 1., 119991 Moscow, Russian Federation
| | - Natalya A Sanina
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, prosp. Akad. Semenova, 1., 142432 Chernogolovka, Moscow region, Russian Federation. .,Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University M.V. Lomonosov, Leninskie gory, 1., 119991 Moscow, Russian Federation.,Scientific and Educational Center "Medical Chemistry", Moscow State Regional Pedagogical University, st. Vera Voloshina, 24, 141014 Mytishchi, Moscow Region, Russian Federation
| |
Collapse
|
7
|
Hu W, Wang X, Peng Y, Luo S, Zhao J, Zhu Q. Synthesis of 7-Arylthiomethyl Dibenzo[ b, d]azepines through Imidoylative Heck Cyclization and CPA-Catalyzed Thio-Michael Addition/Enantioselective Protonation. Org Lett 2022; 24:3642-3646. [PMID: 35549333 DOI: 10.1021/acs.orglett.2c01217] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A chiral phosphoric acid-catalyzed thio-Michael addition/enantioselective protonation has been developed for the first time. The reaction applies 7-methylene-6-aryl-7H-dibenzo[b,d]azepines, products of Pd-catalyzed imidoylative Heck cyclization, as Michael acceptors in reactions with a wide range of aryl thiols. Diversified 7-[(arylthio)methyl]-7H-dibenzo[b,d]azepines bearing a benzylic stereocenter and a thermodynamically regulated biaryl axis were produced with good to excellent enantioselectivity and 14-25:1 diastereoisomeric ratios.
Collapse
Affiliation(s)
- Weiming Hu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Xilong Wang
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Yan Peng
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Shuang Luo
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Jiaji Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528400, China
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China.,Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| |
Collapse
|
8
|
|
9
|
Li J, Zhang S, Lao J, Zou H. Direct Transition-Metal Free Benzene C-H Functionalization by Intramolecular Non-Nitroarene Nucleophilic Aromatic Substitution of Hydrogen to Diverse AIEgens. CHEMSUSCHEM 2021; 14:3208-3218. [PMID: 34132487 DOI: 10.1002/cssc.202101109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/15/2021] [Indexed: 06/12/2023]
Abstract
Direct C(sp2 )-H functionalization through nitroarene-triggered nucleophilic aromatic substitution of hydrogen (SNArH ) has attracted growing attention, owing to its high efficiency and low carbon footprint. In this study, non-nitro-group-assisted SN ArH has been developed for direct benzene functionalization in one pot under mild conditions. The electron-withdrawing carbonyl group and the halide or trifluoromethyl group on the phenyl ring enable the σH adduct formation to fulfill the intramolecular C(sp2 )-C(sp3 ) bond construction. Notably, the cyano group serves as both the electron-withdrawing group to activate the C(sp3 )-H bond and the leaving group to fulfill the β-elimination. Three series of pyrrolo[1,2-b]isoquinolinones, as well as unexpected rearrangement products 3-(1H-pyrrol-2-yl)-1H-inden-1-ones are regioselectively obtained through a simple and efficient base-catalyzed one-pot strategy. Mechanistic studies indicate that the σH adduct from carbanion addition to hydrogen serves as the sole intermediate for all of the aforementioned transformations. These molecules show intense luminescence and the subsequent one-step structural modification results in the aggregation-induced emission (AIE) derivatives with redshifted full-color tunable fluorescence, large Stokes shifts, and good quantum yields. Further living cell imaging investigations suggest their potential application as specific bioprobes for lipid droplet localization and visualization.
Collapse
Affiliation(s)
- Jinbiao Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shuaizhong Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Jiaxin Lao
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Hongbin Zou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| |
Collapse
|
10
|
Sun X, Zhang F, Yan K, Feng W, Sun X, Yang J, Wen J. Electrochemical‐In‐Situ‐Oxidative Sulfonylation of Phenols with Sulfinic Acids as an Access to Sulfonylated Hydroquinones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xue Sun
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Fanjun Zhang
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Kelu Yan
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Wenfeng Feng
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Xuejun Sun
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Jianjing Yang
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Jiangwei Wen
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| |
Collapse
|
11
|
Zhu LH, Yuan HY, Zhang JP. Enantioselective synthesis of chiral tetrasubstituted allenes: harnessing electrostatic and noncovalent interactions in a bifunctional activation model for N-triflylphosphoramide catalysis. Org Chem Front 2021. [DOI: 10.1039/d0qo01250e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
DFT calculation reveals that the oxygen activation model is preferred than the nitrogen activation model due to the preferred chiral electrostatic environment.
Collapse
Affiliation(s)
- Li-Han Zhu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Hai-Yan Yuan
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Jing-Ping Zhang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| |
Collapse
|
12
|
Meng L, Zhang R, Guan Y, Chen T, Ding Z, Wang G, Reheman A, Chen Z, Hu J. One-pot access to sulfonylated naphthalenediols/hydroquinones from naphthols/phenols with sodium sulfinates in an aqueous medium. NEW J CHEM 2021. [DOI: 10.1039/d0nj05285j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free method towards sulfonylated hydroquinones/naphthalenediols under an ambient atmosphere has been developed with up to 97% yield.
Collapse
Affiliation(s)
- Lingxin Meng
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Ruike Zhang
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Yuqiu Guan
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Tian Chen
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Zhiqiang Ding
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Gongshu Wang
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Aikebaier Reheman
- Key Laboratory of Toxicology
- Medical College
- Ningde Normal University
- Ningde
- China
| | - Zhangpei Chen
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| | - Jianshe Hu
- Center for Molecular Science and Engineering
- College of Sciences
- Northeastern University
- Shenyang 110819
- P. R. China
| |
Collapse
|
13
|
Wang B, Xu H, Zhang H, Zhang GM, Li FY, He S, Shi ZC, Wang JY. B(C6F5)3-catalyzed three-component tandem reaction to construct novel polycyclic quinone derivatives: synthesis of a carbonate salt chromogenic chemosensor. Org Chem Front 2021. [DOI: 10.1039/d1qo01199e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series novel polycyclic quinone derivatives were constructed providing a carbonate salt chromogenic chemosensor.
Collapse
Affiliation(s)
- Bei Wang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hong Xu
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hua Zhang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Guo-Ming Zhang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Fu-Yu Li
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shuai He
- Southwest Minzu University, Chengdu 610041, PR China
| | - Zhi-Chuan Shi
- Southwest Minzu University, Chengdu 610041, PR China
| | - Ji-Yu Wang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, China
| |
Collapse
|
14
|
Bao X, Rodriguez J, Bonne D. Enantioselective Synthesis of Atropisomers with Multiple Stereogenic Axes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002518] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
| | - Jean Rodriguez
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
| | - Damien Bonne
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
| |
Collapse
|
15
|
Bao X, Rodriguez J, Bonne D. Enantioselective Synthesis of Atropisomers with Multiple Stereogenic Axes. Angew Chem Int Ed Engl 2020; 59:12623-12634. [DOI: 10.1002/anie.202002518] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
| | - Jean Rodriguez
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
| | - Damien Bonne
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
| |
Collapse
|
16
|
An X, Zhang B, Li X, Du T, Ai Z, Zhang C, Xu J, Sun F, Zhang Y, Du Y. Construction of 4-(Methylthio)isochromenones Skeleton through Regioselective Intramolecular Cyclization of 2-Alkynylbenzoate Mediated by DMSO/[D6
]DMSO and SOCl2. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901723] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xuechan An
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Beibei Zhang
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Xiaoxian Li
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Tianshu Du
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Zhenkang Ai
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Chenglin Zhang
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Jun Xu
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Fengxia Sun
- College of Chemical and Pharmaceutical Engineering; Hebei University of Science and Technology; Hebei Research Center of Pharmaceutical and Chemical Engineering; 050018 Shijiazhuang China
| | - Yilin Zhang
- C. Eugene Bennett Department of Chemistry; West Virginia University; 26506-6045 Morgantown West Virginia United States
| | - Yunfei Du
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); 300072 Tianjin China
| |
Collapse
|
17
|
Liang Y, Ji J, Zhang X, Jiang Q, Luo J, Zhao X. Enantioselective Construction of Axially Chiral Amino Sulfide Vinyl Arenes by Chiral Sulfide‐Catalyzed Electrophilic Carbothiolation of Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915470] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yaoyu Liang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic ChemistrySchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jieying Ji
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic ChemistrySchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Xiaoyan Zhang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic ChemistrySchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Quanbin Jiang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic ChemistrySchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jie Luo
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic ChemistrySchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Xiaodan Zhao
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic ChemistrySchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| |
Collapse
|
18
|
Liang Y, Ji J, Zhang X, Jiang Q, Luo J, Zhao X. Enantioselective Construction of Axially Chiral Amino Sulfide Vinyl Arenes by Chiral Sulfide-Catalyzed Electrophilic Carbothiolation of Alkynes. Angew Chem Int Ed Engl 2020; 59:4959-4964. [PMID: 31967383 DOI: 10.1002/anie.201915470] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Indexed: 01/07/2023]
Abstract
The enantioselective construction of axially chiral compounds by electrophilic carbothiolation of alkynes is disclosed for the first time. This enantioselective transformation is enabled by the use of a Ts-protected bifunctional sulfide catalyst and Ms-protected ortho-alkynylaryl amines (Ts=tosyl; Ms=mesyl). Both electrophilic arylthiolating and electrophilic trifluoromethylthiolating reagents are suitable for this reaction. The obtained products of axially chiral vinyl-aryl amino sulfides can be easily converted into biaryl amino sulfides, biaryl amino sulfoxides, biaryl amines, vinyl-aryl amines, and other valuable difunctionalized compounds.
Collapse
Affiliation(s)
- Yaoyu Liang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jieying Ji
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiaoyan Zhang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Quanbin Jiang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jie Luo
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiaodan Zhao
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| |
Collapse
|
19
|
Vaidya SD, Toenjes ST, Yamamoto N, Maddox SM, Gustafson JL. Catalytic Atroposelective Synthesis of N-Aryl Quinoid Compounds. J Am Chem Soc 2020; 142:2198-2203. [PMID: 31944689 DOI: 10.1021/jacs.9b12994] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Diarylamines and related scaffolds are among the most common chemotypes in modern drug discovery. While they can potentially possess two chiral axes, there are no studies on their enantioselective synthesis, as these axes typically possess lower stereochemical stabilities. Herein, we report a chiral phosphoric acid catalyzed atroposelective electrophilic halogenation of N-aryl quinoids, a class of compounds that are analogous to diarylamines. This chemistry yields a large range of stereochemically stable N-aryl quinoids in excellent yields and atroposelectivity. This work represents the first example of the atroposelective synthesis of a diarylamine-like scaffold and will serve as a gateway to fundamental and applied studies on the scarcely studied chirality of these ubiquitous chiral scaffolds.
Collapse
Affiliation(s)
- Sagar D Vaidya
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182-1030 , United States
| | - Sean T Toenjes
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182-1030 , United States
| | - Nobuyuki Yamamoto
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182-1030 , United States
| | - Sean M Maddox
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182-1030 , United States
| | - Jeffrey L Gustafson
- Department of Chemistry and Biochemistry , San Diego State University , 5500 Campanile Drive , San Diego , California 92182-1030 , United States
| |
Collapse
|
20
|
Bao X, Rodriguez J, Bonne D. Bidirectional enantioselective synthesis of bis-benzofuran atropisomeric oligoarenes featuring two distal C-C stereogenic axes. Chem Sci 2019; 11:403-408. [PMID: 32153755 PMCID: PMC7021203 DOI: 10.1039/c9sc04378k] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/11/2019] [Indexed: 12/18/2022] Open
Abstract
We report the bidirectional enantioselective synthesis of bis-benzofuran atropisomeric oligoarenes featuring two distal C–C stereogenic axes. These are controlled by a two-fold central-to-axial chirality conversion upon oxidative aromatization.
We report the bidirectional enantioselective synthesis of bis-benzofuran atropisomeric oligoarenes featuring two distal C–C stereogenic axes obtained by a two-fold central-to-axial chirality conversion upon oxidative aromatization. The key enantioenriched centrally chiral bis-dihydrobenzofuran precursors were synthesized via a bidirectional diastereo- and enantio-selective organocatalyzed domino reaction between simple achiral and easily accessible dihydroxylated aromatics and chloronitroalkenes. Moreover, the stereodivergent nature of the methodology was established by synthesizing both diastereomers of a non-symmetrically functionalized bis-axially chiral oligoarene.
Collapse
Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Jean Rodriguez
- Aix Marseille Université , CNRS , Centrale Marseille , iSm2 , Marseille , France . ;
| | - Damien Bonne
- Aix Marseille Université , CNRS , Centrale Marseille , iSm2 , Marseille , France . ;
| |
Collapse
|
21
|
Hao Y, Yin Q, Zhang Y, Xu M, Chen S. Recent Progress in the Development of Fluorescent Probes for Thiophenol. Molecules 2019; 24:E3716. [PMID: 31623065 PMCID: PMC6832550 DOI: 10.3390/molecules24203716] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 02/07/2023] Open
Abstract
Thiophenol (PhSH) belongs to a class of highly reactive and toxic aromatic thiols with widespread applications in the chemical industry for preparing pesticides, polymers, and pharmaceuticals. In this review, we comprehensively summarize recent progress in the development of fluorescent probes for detecting and imaging PhSH. These probes are classified according to recognition moieties and are detailed on the basis of their structures and sensing performances. In addition, prospects for future research are also discussed.
Collapse
Affiliation(s)
- Yuanqiang Hao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu 476000, China.
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Qianye Yin
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Yintang Zhang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu 476000, China.
| | - Maotian Xu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu 476000, China.
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Shu Chen
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| |
Collapse
|
22
|
Liu S, Qi Z, Zhang Z, Qian B. Iodine/Manganese Dual Catalysis for Oxidative Dehydrogenation Coupling of Amines with Thiols. Org Lett 2019; 21:7722-7725. [DOI: 10.1021/acs.orglett.9b02545] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Shengping Liu
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Zaojuan Qi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Zhang Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Bo Qian
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| |
Collapse
|
23
|
Hayashi Y, Takikawa A, Koshino S, Ishida K. Asymmetric Synthesis of Biaryl Atropisomers Using an Organocatalyst‐Mediated Domino Reaction as the Key Step. Chemistry 2019; 25:10319-10322. [DOI: 10.1002/chem.201902767] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry, Graduate School of ScienceTohoku University 6–3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Akira Takikawa
- Department of Chemistry, Graduate School of ScienceTohoku University 6–3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Seitaro Koshino
- Department of Chemistry, Graduate School of ScienceTohoku University 6–3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Keiichi Ishida
- Department of Chemistry, Graduate School of ScienceTohoku University 6–3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| |
Collapse
|
24
|
Zhou B, Liu Q, Wang H, Jin H, Liu Y. CuI/Cu(OTf)2/DMSO system-catalyzed intramolecular oxidative cyclization of (o-alkynyl)arylketones: Efficient synthesis of 1,4-naphthoquinones. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
25
|
Liu JY, Yang XC, Liu Z, Luo YC, Lu H, Gu YC, Fang R, Xu PF. An Atropo-enantioselective Synthesis of Benzo-Linked Axially Chiral Indoles via Hydrogen-Bond Catalysis. Org Lett 2019; 21:5219-5224. [PMID: 31247740 DOI: 10.1021/acs.orglett.9b01828] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A variety of axially chiral biaryldiols were synthesized in good yields with excellent atropo-enantioselectivities through construction of axially chiral indoles catalyzed by asymmetric hydrogen-bond donors. In addition, the new axially chiral compounds were proved to be efficient and practical catalysts for asymmetric catalysis. The strategy not only provides a novel method to synthesize axially chiral compounds but also extends the scope of chiral catalysts.
Collapse
Affiliation(s)
- Jin-Yu Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 . P. R. China
| | - Xie-Chao Yang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 . P. R. China
| | - Zhen Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 . P. R. China
| | - Yong-Chun Luo
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 . P. R. China
| | - Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science , Northwest University , Xi'an 710069 , P. R. China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre , Bracknell , Berkshire RG42 6EY , U.K
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 . P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 . P. R. China
| |
Collapse
|
26
|
Rajeshkumar V, Neelamegam C, Anandan S. A one-pot metal-free protocol for the synthesis of chalcogenated furans from 1,4-enediones and thiols. Org Biomol Chem 2019; 17:982-991. [DOI: 10.1039/c8ob03051k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition-metal-free synthesis of chalcogenated furans through the sequential thiol-Michael/Paal–Knorr reaction of 1,4-enediones in the presence of a catalytic amount of p-toluene sulfonic acid has been developed.
Collapse
Affiliation(s)
| | | | - Sambandam Anandan
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli
- India
| |
Collapse
|
27
|
Tang T, Moon NG, McKay L, Harned AM. New Strategy To Access Enantioenriched Cyclohexadienones: Kinetic Resolution of para-Quinols by Organocatalytic Thiol-Michael Addition Reactions. ACS OMEGA 2018; 3:15492-15500. [PMID: 31458205 PMCID: PMC6643461 DOI: 10.1021/acsomega.8b01787] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/31/2018] [Indexed: 06/10/2023]
Abstract
Existing stereoselective routes to 2,5-cyclohexadienones involve either desymmetrization of an achiral substrate or have attempted to perform an asymmetric dearomatization of a phenol. Herein, we report proof-of-principle experiments aimed at developing a kinetic resolution as an alternative method for accessing enantioenriched 2,5-cyclohexadienones. More specifically, chiral bifunctional thiourea catalysts were used to promote the addition of 2-thionapthalene into unsymmetric para-quinols. The selectivity of the kinetic resolution was found to be quite sensitive to substitution around the substrate.
Collapse
Affiliation(s)
- Ting Tang
- Department
of Chemistry & Biochemistry, Texas Tech
University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| | - Nicholas G. Moon
- Department
of Chemistry, University of Minnesota—Twin
Cities, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Lydia McKay
- Department
of Chemistry & Biochemistry, Texas Tech
University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| | - Andrew. M. Harned
- Department
of Chemistry & Biochemistry, Texas Tech
University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| |
Collapse
|
28
|
Dinh AN, Noorbehesht RR, Toenjes ST, Jackson AC, Saputra MA, Maddox SM, Gustafson JL. Towards a Catalytic Atroposelective Synthesis of Diaryl Ethers via C( sp 2)-H Alkylation Using Nitroalkanes. Synlett 2018; 29:2155-2160. [PMID: 31178629 DOI: 10.1055/s-0037-1609581] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein we report studies towards a small molecule catalytic approach to access atropisomeric diaryl ethers that proceeds via a C(sp 2)-H alkylation using nitroalkanes as the alkyl source. A quaternary ammonium salt derived from quinine containing a sterically hindered urea at the C-9 position was found to effect atroposelective C(sp 2)-H alkylation with moderate to good enantioselectivities across several naphthoquinone-containing diaryl ethers. Products can then be isolated in greater than 95:5 er after one round of trituration. For several substrates that were evaluated we observed a 'nitroethylated' product in similar yields and selectivities.
Collapse
Affiliation(s)
- Andrew N Dinh
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| | - Ryan R Noorbehesht
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| | - Sean T Toenjes
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| | - Amy C Jackson
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| | - Mirza A Saputra
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| | - Sean M Maddox
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| | - Jeffrey L Gustafson
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Dr, San Diego, CA, 92182-1030
| |
Collapse
|