Ruthenium(II)-Catalyzed [4 + 2] Electro-Oxidative Annulation of C 6‑Arylpurines/Purine Nucleosides
A sustainable pathway for the synthesis of tetracyclic purinium salts via ruthenium-catalyzed electro-oxidative annulation of C 6-arylpurine nucleosides with alkynes without a stoichiometric metal oxidant has been developed. The protocol described herein exhibits high regioselectivity, broad scope,...
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Published in | Organic letters Vol. 25; no. 37; pp. 6796 - 6801 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
American Chemical Society
22.09.2023
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Abstract | A sustainable pathway for the synthesis of tetracyclic purinium salts via ruthenium-catalyzed electro-oxidative annulation of C 6-arylpurine nucleosides with alkynes without a stoichiometric metal oxidant has been developed. The protocol described herein exhibits high regioselectivity, broad scope, and wide functional group tolerance, allowing efficient coupling of various biologically important molecules including acyclic, ribosyl, arabinosyl, and deoxyribosyl purine nucleoside derivatives. A novel purinoisoquinolinium-coordinated ruthenium(0) sandwich intermediate has been isolated, crystallographically characterized, and electrochemically analyzed, offering direct mechanistic insight. |
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AbstractList | A sustainable pathway for the synthesis of tetracyclic purinium salts via ruthenium-catalyzed electro-oxidative annulation of C 6-arylpurine nucleosides with alkynes without a stoichiometric metal oxidant has been developed. The protocol described herein exhibits high regioselectivity, broad scope, and wide functional group tolerance, allowing efficient coupling of various biologically important molecules including acyclic, ribosyl, arabinosyl, and deoxyribosyl purine nucleoside derivatives. A novel purinoisoquinolinium-coordinated ruthenium(0) sandwich intermediate has been isolated, crystallographically characterized, and electrochemically analyzed, offering direct mechanistic insight. |
Author | Luo, Yi-Rui Yang, Qi-Liang Zhang, Bei-Ning Xu, Rong-Yi Zhang, Yan-Ni Guo, Hai-Ming |
AuthorAffiliation | State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering |
AuthorAffiliation_xml | – name: State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering |
Author_xml | – sequence: 1 givenname: Qi-Liang orcidid: 0000-0003-4734-5391 surname: Yang fullname: Yang, Qi-Liang email: yangqiliang@htu.edu.cn – sequence: 2 givenname: Yi-Rui surname: Luo fullname: Luo, Yi-Rui – sequence: 3 givenname: Rong-Yi surname: Xu fullname: Xu, Rong-Yi – sequence: 4 givenname: Bei-Ning surname: Zhang fullname: Zhang, Bei-Ning – sequence: 5 givenname: Yan-Ni surname: Zhang fullname: Zhang, Yan-Ni – sequence: 6 givenname: Hai-Ming orcidid: 0000-0003-0629-4524 surname: Guo fullname: Guo, Hai-Ming email: ghm@htu.edu.cn |
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