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  1. Article ; Online: Synthesis of <i>ortho</i>-Phosphated (Hetero)Arylamines through Cascade Atherton-Todd Reaction/[3,3]-Rearrangement from Arylhydroxylamines and Dialkyl Phosphites.

    Liu, Xiao / Pei, Jingtai / Gao, Zhiwei / Gao, Hongyin

    Organic letters

    2022  Volume 24, Issue 41, Page(s) 7690–7695

    Abstract: A practical and facile strategy for the synthesis of ... ortho ... -phosphated (hetero)arylamines from readily available arylhydroxylamines and dialkyl phosphites via cascade Atherton-Todd reaction/[3,3]-rearrangement was developed. This method is amenable ...

    Abstract A practical and facile strategy for the synthesis of ortho-phosphated (hetero)arylamines from readily available arylhydroxylamines and dialkyl phosphites via cascade Atherton-Todd reaction/[3,3]-rearrangement was developed. This method is amenable to various arylhydroxylamines such as phenylhydroxylamines, naphthylhydroxylamines, and pyridylhydroxylamines, has mild reaction conditions, is oxidant-free, and has good functional-group compatibility and excellent regioselectivity.
    MeSH term(s) Phosphites ; Amines
    Chemical Substances Phosphites ; Amines
    Language English
    Publishing date 2022-10-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/acs.orglett.2c03269
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Transition-Metal-Free Cascade Approach for the Synthesis of Functionalized Biaryls by S

    Xu, Gaofei / Han, Zongtao / Guo, Lirong / Lu, Haifeng / Gao, Hongyin

    The Journal of organic chemistry

    2022  Volume 87, Issue 15, Page(s) 10449–10453

    Abstract: We report a transition-metal-free protocol for the synthesis of functionalized biaryls through nucleophilic aromatic substitution ( ... ...

    Abstract We report a transition-metal-free protocol for the synthesis of functionalized biaryls through nucleophilic aromatic substitution (S
    Language English
    Publishing date 2022-07-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.2c00990
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  3. Article ; Online: Rapid Access to Fluorinated Anilides via DAST-Mediated Deoxyfluorination of Arylhydroxylamines.

    Zhang, Zhuyong / Luo, Junfei / Gao, Hongyin

    Organic letters

    2021  Volume 23, Issue 23, Page(s) 9332–9336

    Abstract: A new strategy for the synthesis of fluorinated anilides in the absence of metals and oxidants has been developed. This deoxyfluorination ... ...

    Abstract A new strategy for the synthesis of fluorinated anilides in the absence of metals and oxidants has been developed. This deoxyfluorination of
    Language English
    Publishing date 2021-11-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/acs.orglett.1c03779
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Desulfurdioxidative N-N Coupling of N-Arylhydroxylamines and N-Sulfinylanilines: Reaction Development and Mechanism.

    Li, Linwei / Zhou, Yi / Xi, Zhenguo / Guo, Zhaoquan / Duan, Ji-Cheng / Yu, Zhi-Xiang / Gao, Hongyin

    Angewandte Chemie (International ed. in English)

    2024  , Page(s) e202406478

    Abstract: A highly efficient and chemoselective approach for the divergent assembling of unsymmetrical hydrazines through an unprecedented intermolecular desulfurdioxidative N-N coupling is developed. This metal free protocol employs readily accessible N- ... ...

    Abstract A highly efficient and chemoselective approach for the divergent assembling of unsymmetrical hydrazines through an unprecedented intermolecular desulfurdioxidative N-N coupling is developed. This metal free protocol employs readily accessible N-arylhydroxylamines and N-sulfinylanilines to provide highly valuable hydrazine products with good yields and excellent functional group tolerance under simple conditions. Computational studies suggest that the in situ generated O-sulfenylated arylhydroxylamine intermediate undergoes a retro-[2π+2σ] cycloaddition via a stepwise diradical mechanism to form the N-N bond and release SO2.
    Language English
    Publishing date 2024-04-18
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202406478
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Rapid Access to Fluorinated Anilides via DAST-Mediated Deoxyfluorination of Arylhydroxylamines

    Zhang, Zhuyong / Luo, Junfei / Gao, Hongyin

    Organic letters. 2021 Nov. 19, v. 23, no. 23

    2021  

    Abstract: A new strategy for the synthesis of fluorinated anilides in the absence of metals and oxidants has been developed. This deoxyfluorination of N-arylhydroxylamines with diethylaminosulfur trifluoride (DAST) proceeded smoothly under mild conditions, and the ...

    Abstract A new strategy for the synthesis of fluorinated anilides in the absence of metals and oxidants has been developed. This deoxyfluorination of N-arylhydroxylamines with diethylaminosulfur trifluoride (DAST) proceeded smoothly under mild conditions, and the ortho- or para-fluorinated aromatic amine products were prepared in moderate to good yields. Structurally diverse fluorinated anilides, including heterocyclic and pharmaceutically relevant molecules, can be efficiently constructed by this protocol.
    Keywords anilides ; aromatic amines ; heterocyclic compounds ; metals ; oxidants
    Language English
    Dates of publication 2021-1119
    Size p. 9332-9336.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1523-7052
    DOI 10.1021/acs.orglett.1c03779
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: [2,3]-Sigmatropic Rearrangement of Arylhydroxylamines: Rapid Access to ortho-Sulfonylated Anilines

    Liu, Yue / Xu, Gaofei / Gao, Hongyin

    Synlett

    2022  Volume 33, Issue 17, Page(s) 1675–1680

    Abstract: In the absence of transition-metal catalysts and additional oxidants, arylhydroxylamines can undergo an unconventional O -sulfinylation/[2,3]-sigmatropic rearrangement/rearomatization cascade with trifluoromethylsulfinyl chloride to rapidly and ... ...

    Abstract In the absence of transition-metal catalysts and additional oxidants, arylhydroxylamines can undergo an unconventional O -sulfinylation/[2,3]-sigmatropic rearrangement/rearomatization cascade with trifluoromethylsulfinyl chloride to rapidly and efficiently synthesize versatile ortho -sulfonylated aromatic amines. This Synpacts article describes the discovery, further study, and practical application of the rearrangement reactions in arylhydroxylamine compounds and highlights our recent advances in this area. 1

    Introduction 2

    Discovery of a New Reaction 3

    O -Sulfinylation of Arylhydroxylamines Followed by [2,3]-σ Rearrangement 4

    Conclusion
    Keywords arylhydroxylamines ; -sulfonylated anilines ; sigmatropic rearrangement ; trifluoromethanesulfonylation ; DFT calculation
    Language English
    Publishing date 2022-05-30
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 2042012-2
    ISSN 1437-2096 ; 0936-5214
    ISSN (online) 1437-2096
    ISSN 0936-5214
    DOI 10.1055/a-1863-9090
    Database Thieme publisher's database

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  7. Article ; Online: Synthesis of non-C

    Liu, Fengting / Wang, Min / Qu, Jiatong / Lu, Haifeng / Gao, Hongyin

    Organic & biomolecular chemistry

    2021  Volume 19, Issue 33, Page(s) 7246–7251

    Abstract: We developed herein a regioselective construction of non- ... ...

    Abstract We developed herein a regioselective construction of non-C
    Language English
    Publishing date 2021-08-13
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2097583-1
    ISSN 1477-0539 ; 1477-0520
    ISSN (online) 1477-0539
    ISSN 1477-0520
    DOI 10.1039/d1ob00636c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Expeditious and Efficient ortho-Selective Trifluoromethane-sulfonylation of Arylhydroxylamines.

    Liu, Yue / Bai, Songlin / Du, Yuanbo / Qi, Xiangbing / Gao, Hongyin

    Angewandte Chemie (International ed. in English)

    2021  Volume 61, Issue 6, Page(s) e202115611

    Abstract: A metal- and oxidant-free, practical and efficient method for the synthesis of highly versatile and synthetically useful ortho-trifluoromethanesulfonylated anilines from arylhydroxylamines and trifluoromethanesulfinic chloride was developed. This rapid ... ...

    Abstract A metal- and oxidant-free, practical and efficient method for the synthesis of highly versatile and synthetically useful ortho-trifluoromethanesulfonylated anilines from arylhydroxylamines and trifluoromethanesulfinic chloride was developed. This rapid transformation proceeded smoothly with good yields and excellent ortho-selectivity in the absence of any metals or ligands. Mechanistically, the reaction comprised a noncanonical O-trifluoromethanesulfinylation of the arylhydroxylamine, and the subsequent [2,3]-sigmatropic rearrangement to afford ortho-trifluoromethanesulfonylated aniline derivatives. The practical application of this reaction was demonstrated by further conversion into a series of functional molecules under different reaction conditions.
    Language English
    Publishing date 2021-12-23
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202115611
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Compressive Mechanical Properties and Shock-Induced Reaction Behavior of Zr/PTFE and Ti/PTFE Reactive Materials.

    Zhang, Zhenwei / He, Yong / He, Yuan / Guo, Lei / Ge, Chao / Wang, Haifu / Ma, Yue / Gao, Hongyin / Tian, Weixi / Wang, Chuanting

    Materials (Basel, Switzerland)

    2022  Volume 15, Issue 19

    Abstract: Existing research on PTFE-based reactive materials (RMs) mostly focuses on Al/PTFE RMs. To explore further possibilities of formulation, the reactive metal components in the RMs can be replaced. In this paper, Zr/PTFE and Ti/PTFE RMs were prepared by ... ...

    Abstract Existing research on PTFE-based reactive materials (RMs) mostly focuses on Al/PTFE RMs. To explore further possibilities of formulation, the reactive metal components in the RMs can be replaced. In this paper, Zr/PTFE and Ti/PTFE RMs were prepared by cold isostatic pressing and vacuum sintering. The static and dynamic compressive mechanical properties of Zr/PTFE and Ti/PTFE RMs were investigated at different strain rates. The results show that the introduction of zirconium powder and titanium powder can increase the strength of the material under dynamic loading. Meanwhile, a modified J-C model considering strain and strain rate coupling was proposed. The parameters of the modified J-C model of Zr/PTFE and Ti/PTFE RMs were determined, which can describe and predict plastic flow stress. To characterize the impact-induced reaction behavior of Zr/PTFE and Ti/PTFE RMs, a quasi-sealed test chamber was used to measure the over-pressure induced by the exothermic reaction. The energy release characteristics of both materials were more intense under the higher impact.
    Language English
    Publishing date 2022-09-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma15196524
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Antimicrobial activity of a natural compound and analogs against multi-drug-resistant Gram-positive pathogens.

    Shah, Kush N / Shah, Parth N / Agobe, Francesca O / Lovato, Kaitlyn / Gao, Hongyin / Ogun, Oluwadara / Hoffman, Cason / Yabe-Gill, Marium / Chen, Qingquan / Sweatt, Jordan / Chirra, Bhagath / Muñoz-Medina, Ricardo / Farmer, Delaney E / Kürti, László / Cannon, Carolyn L

    Microbiology spectrum

    2024  Volume 12, Issue 3, Page(s) e0151522

    Abstract: The increasing prevalence of methicillin-resistant : Importance: The rapid emergence of methicillin- ... ...

    Abstract The increasing prevalence of methicillin-resistant
    Importance: The rapid emergence of methicillin-resistant
    MeSH term(s) Humans ; Vancomycin/pharmacology ; Linezolid/pharmacology ; Methicillin-Resistant Staphylococcus aureus ; Microbial Sensitivity Tests ; Anti-Bacterial Agents/pharmacology ; Staphylococcal Infections/epidemiology ; Polybrominated Biphenyls
    Chemical Substances Vancomycin (6Q205EH1VU) ; Linezolid (ISQ9I6J12J) ; 3,3',5,5'-tetrabromo-2,2'-biphenyldiol ; Anti-Bacterial Agents ; Polybrominated Biphenyls
    Language English
    Publishing date 2024-01-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.01515-22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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