1
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Merino MR, Cook XAF, Blakemore DC, Moses IB, Sach NW, Shavnya A, Willis MC. Copper-Catalyzed Synthesis of Masked (Hetero)Aryl Sulfinates. Org Lett 2024; 26:2817-2820. [PMID: 38189248 PMCID: PMC11020165 DOI: 10.1021/acs.orglett.3c03621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/08/2023] [Accepted: 12/29/2023] [Indexed: 01/09/2024]
Abstract
Catalysis using substoichiometric copper facilitates the synthesis of masked (hetero)aryl sulfinates under mild, base-free conditions from aryl iodides and the commercial sulfonylation reagent sodium 1-methyl 3-sulfinopropanoate (SMOPS). The development of a tert-butyl ester variant of the SMOPS reagent allowed the use of aryl bromide substrates. The sulfones thus generated can be unmasked and functionalized in situ to form a variety of sulfonyl-containing functional groups.
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Affiliation(s)
- May R. Merino
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K.
| | - Xinlan A. F. Cook
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K.
| | - David C. Blakemore
- Medicine
Design, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ian B. Moses
- Pharmaceutical
Sciences, Pfizer Inc., Discovery Park, Ramsgate Road, Kent CT13 9ND, U.K.
| | - Neal W. Sach
- Medicine
Design, La Jolla Laboratories, Pfizer Inc., 10777 Science Center Drive, San Diego, California 92121, United States
| | - Andre Shavnya
- Medicine
Design, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Michael C. Willis
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K.
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2
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Zhang Y, Han B, Gu X, Wang K, Liang S. Mn(OAc) 3-Promoted Sulfonation- ipso-Cyclization Cascade via the SO 3- Radical: The Synthesis of Spirocyclic Sulfonates. J Org Chem 2023; 88:14140-14155. [PMID: 37718492 DOI: 10.1021/acs.joc.3c01684] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
A radical sulfonation-ipso-cyclization cascade promoted by Mn(OAc)3·2H2O using functionalized alkynes or alkenes and potassium metabisulfite (K2S2O5) is reported. A total of 30 spirocyclic sulfonates were synthesized under mild conditions. We also demonstrate a modular synthesis approach in multiple steps for the preparation of various azaspiro[4,5]-trienone-based sulfonamides and sulfonate esters.
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Affiliation(s)
- Yan Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
| | - Bingxu Han
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
| | - Xin Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Kaixuan Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
| | - Shuai Liang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
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3
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Song H, Zhang X, Chen G, He X, Lian Z. Copper-Catalyzed 1,4-Trifluoromethylthio-Arylsulfonylation of 1,3-Enynes via the Insertion of Sulfur Dioxide. Org Lett 2023; 25:5916-5921. [PMID: 37498155 DOI: 10.1021/acs.orglett.3c02293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
A copper-catalyzed trifluoromethylthio-arylsulfonylation between 1,3-enynes, AgSCF3, aryldiazonium tetrafluoroborates, and SO2 (from SOgen) is presented, which could introduce sulfone, SCF3, and allene moieties into one molecule simultaneously. This strategy features mild reaction conditions, good substrate compatibility, and excellent regioselectivity. The products obtained have the potential for further conversion into other valuable compounds. Initial investigations into the reaction mechanism suggest that it may proceed via a radical pathway. Notably, SOgen was proven as a uniquely effective SO2 surrogate in this transformation.
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Affiliation(s)
- Hongzhuo Song
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xuemei Zhang
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Gang Chen
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiaochun He
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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4
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Zhang KY, Long F, Peng CC, Liu JH, Wu LJ. Pd-Catalyzed Multicomponent Cross-Coupling of Allyl Esters with Alkyl Bromides and Potassium Metabisulfite: Access to Allylic Sulfones. Org Lett 2023; 25:5817-5821. [PMID: 37498112 DOI: 10.1021/acs.orglett.3c02066] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
A Pd-catalyzed multicomponent cross-coupling of allyl esters with alkyl bromides to synthesize allylic sulfones by using K2S2O5 as a connector is first reported. The reaction displays a broad range of substrate generality along with excellent functional group compatibility and produces the products with high regioselectivity (only E). Furthermore, the biologically active molecules with a late-stage modification, including aspirin, menthol, borneol, and estrone, are also highly compatible with the multicomponent cross-coupling reaction. Mechanistic studies indicate that the process of SO2 insertion into the C-Pd bond was involved in this transformation.
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Affiliation(s)
- Kai-Yi Zhang
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Fang Long
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
- Department of Hunan Cuisine, ChangSha Commerce & Tourism College, Changsha 410116, China
| | - Chuan-Chong Peng
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jin-Hui Liu
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Li-Jun Wu
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
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5
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Reddy RJ, Kumari AH, Krishna GR. Unified Radical Sulfonylative-Annulation of 1,6-Enynols with Sodium Sulfinates: A Modular Synthesis of 2,3-Disubstituted Benzoheteroles. J Org Chem 2023; 88:1635-1648. [PMID: 36650618 DOI: 10.1021/acs.joc.2c02696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Benzoheteroles are valuable scaffolds in medicinal chemistry, but the direct synthesis of 3-vinyl benzoheterole analogues remains unexplored. A rationally designed new class of 1,6-enyne-containing propargylic alcohols has been prepared for the modular synthesis of 3-alkenyl benzoheteroles. Ag-catalyzed cascade radical sulfonylative-cycloannulation of 1,6-enynols with sodium sulfinates is realized to access a wide variety of 2,3-disubstituted benzoheteroles in good to high yields. Moreover, a three-component coupling of 1,6-enynols, aryldiazonium salts, and Na2S2O5 (as an SO2 surrogate) has been achieved to deliver benzoheterole derivatives in moderate to good yields. Of note, a scalable reaction and late-stage synthetic transformations were successfully demonstrated. A plausible mechanism is also presented based on the existing experimental results and control experiments.
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Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India
| | - Arram Haritha Kumari
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India
| | - Gamidi Rama Krishna
- Centre for X-ray Crystallography, CSIR-National Chemical Laboratory, Pune 411 008, India
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6
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Han B, Ding X, Zhang Y, Gu X, Qi Y, Liang S. Mn(OAc) 3-Promoted Sulfonation-Cyclization Cascade via the SO 3– Radical: The Synthesis of Heterocyclic Sulfonates. Org Lett 2022; 24:8255-8260. [DOI: 10.1021/acs.orglett.2c03510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bingxu Han
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No. 1 Ningde Road, 266071 Qingdao, China
| | - Xuelu Ding
- Department of Pharmaceutical Analysis, School of Pharmacy, Qingdao University Medical College, No. 1 Ningde Road, 266071 Qingdao, China
| | - Yan Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No. 1 Ningde Road, 266071 Qingdao, China
| | - Xin Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Yunkun Qi
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No. 1 Ningde Road, 266071 Qingdao, China
| | - Shuai Liang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No. 1 Ningde Road, 266071 Qingdao, China
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7
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Lou TS, Kawamata Y, Ewing T, Correa‐Otero GA, Collins MR, Baran PS. Scalable, Chemoselective Nickel Electrocatalytic Sulfinylation of Aryl Halides with SO
2. Angew Chem Int Ed Engl 2022; 61:e202208080. [PMID: 35819400 PMCID: PMC9452475 DOI: 10.1002/anie.202208080] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Indexed: 11/16/2022]
Abstract
Simple access to aryl sulfinates from aryl iodides and bromides is reported using an inexpensive Ni‐electrocatalytic protocol. The reaction exhibits a broad scope, uses stock solution of simple SO2 as sulfur source, and can be scaled up in batch and recycle flow settings. The limitations of this reaction are clearly shown and put into context by benchmarking with state‐of‐the‐art Pd‐based methods.
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Affiliation(s)
- Terry Shing‐Bong Lou
- Department of Chemistry Scripps Research 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Yu Kawamata
- Department of Chemistry Scripps Research 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Tamara Ewing
- Department of Chemistry Scripps Research 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | | | - Michael R. Collins
- Oncology Medicinal Chemistry Department Pfizer Pharmaceuticals 10770 Science Center Drive San Diego CA 92121 USA
| | - Phil S. Baran
- Department of Chemistry Scripps Research 10550 North Torrey Pines Road La Jolla CA 92037 USA
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8
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Lou TSB, Kawamata Y, Ewing T, Correa-Otero GA, Collins MR, Baran PS. Scalable, Chemoselective Nickel Electrocatalytic Sulfinylation of Aryl Halides with SO2. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Yu Kawamata
- The Scripps Research Institute Chemistry 10950 N. Torrey Pines Rd 92037 La Jolla UNITED STATES
| | - Tamara Ewing
- The Scripps Research Institute chemistry UNITED STATES
| | | | - Michael R. Collins
- Pfizer Global Pharmaceuticals: Pfizer Inc Oncology Medicinal Chemistry Department UNITED STATES
| | - Phil S. Baran
- The Scripps Research Institute Department of Chemistry 10550 North Torrey pines RoadBCC-169 92037 La Jolla UNITED STATES
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9
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Han B, Gu X, Li K, Qi Y, Liang S. Homolytic Aromatic Sulfonation with K 2S 2O 5 Promoted by a Combination of Mn(OAc) 3·2H 2O and HFIP. J Org Chem 2022; 87:7124-7135. [PMID: 35584042 DOI: 10.1021/acs.joc.2c00321] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, we reported a so far unprecedented Mn(OAc)3·2H2O-promoted homolytic aromatic sulfonation. The reaction was performed under mild conditions with K2S2O5 employed as a green sulfonating reagent. Various arenes were successfully converted into desired sulfonic acids or sulfonates in high efficiency. Preliminary mechanistic studies demonstrated that the present reaction proceeds via a homolytic aromatic substitution-type mechanism involving an SO3- radical. The combination of Mn(OAc)3·2H2O and HFIP plays a crucial role.
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Affiliation(s)
- Bingxu Han
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
| | - Xin Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Ke Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
| | - Yunkun Qi
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
| | - Shuai Liang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, No.1 Ningde Road, 266071 Qingdao, China
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10
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Zhang Z, Song Q, Feng C, Wang Z, Zhao W, Ning Y, Wu Y. The Sulfinylsulfonation of alkynes for β-Sulfinyl alkenylsulfone. Chem Asian J 2022; 17:e202200299. [PMID: 35485489 DOI: 10.1002/asia.202200299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/18/2022] [Indexed: 11/10/2022]
Abstract
Here we report the first example of sulfinylsulfonation of alkynes to afford β-sulfinyl alkenylsulfone products with a broad substrate scope, excellent functional group compatibility, and high yield. Moreover, sulfinylsulfonation reaction of enyne can also be realized for constructing functionalized carbo- and heterocycles through a radical cascade cyclization process.
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Affiliation(s)
- Zhansong Zhang
- Northeast Normal University, Department of Chemistry, CHINA
| | - Qingmin Song
- Northeast Normal University, Department of Chemistry, CHINA
| | - Chengjie Feng
- Northeast Agricultural University, Department of Chemicstry, Collge of Art and Science, CHINA
| | - Zikun Wang
- Northeast Normal University, Department of Chemistry, CHINA
| | - Wanjun Zhao
- Northeast Normal University, Department of Chemistry, CHINA
| | - Yongquan Ning
- Northeast Normal University, Department of Chemistry, Renmin Road, Changchun, JL, 431, Changchun, CHINA
| | - Yong Wu
- Northeast Normal University, Department of Chemistry, CHINA
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11
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Golagani D, Ghouse AM, Ajmeera S, Akondi SM. Divergent cyanoalkylation/cyanoalkylsulfonylation of enamides under organophotoredox catalytic conditions. Org Biomol Chem 2022; 20:8599-8604. [DOI: 10.1039/d2ob01775j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An organophotoredox catalyzed divergent cyanoalkylation/cyanoalkylsulfonylation of enamides is described.
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Affiliation(s)
- Durga Golagani
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Abuthayir Mohamathu Ghouse
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sriram Ajmeera
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Srirama Murthy Akondi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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12
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Li Y, Zhang X, Lian Z. Copper catalyzed cyano-sulfonylation of allenes via the insertion of sulfur dioxide toward the synthesis of ( E)-α-cyanomethyl vinylsulfones. Org Chem Front 2022. [DOI: 10.1039/d2qo01063a] [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
An efficient and practical method for highly regio- and stereo-selective cyanosulfonylation of allenes by inserting sulfur dioxide to synthesize useful (E)-α-cyanomethyl vinylsulfones has been explored.
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Affiliation(s)
- Yue Li
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Xuemei Zhang
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
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13
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Andrews JA, Pantaine LRE, Palmer CF, Poole DL, Willis MC. Sulfinates from Amines: A Radical Approach to Alkyl Sulfonyl Derivatives via Donor-Acceptor Activation of Pyridinium Salts. Org Lett 2021; 23:8488-8493. [PMID: 34648294 DOI: 10.1021/acs.orglett.1c03194] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Synthetically versatile alkyl sulfinates can be prepared from readily available amines, using Katritzky pyridinium salt intermediates. In a catalyst-free procedure, primary, secondary, and benzylic alkyl radicals are generated by photoinduced or thermally induced single-electron transfer (SET) from an electron donor-acceptor (EDA) complex, and trapped by SO2 to generate sulfonyl radicals. Hydrogen atom transfer (HAT) from Hantzsch ester gives alkyl sulfinate products, which are used to prepare a selection of medicinal chemistry relevant sulfonyl-containing motifs.
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Affiliation(s)
- Jonathan A Andrews
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, U.K
| | - Loïc R E Pantaine
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, U.K
| | - Christopher F Palmer
- Evotec (U.K.) Limited, 114 Innovation Drive, Milton Park, Abingdon, OX14 4RZ, U.K
| | - Darren L Poole
- GlaxoSmithKline Medicines Research Centre, Gunnells Wood Road, Stevenage, SG1 2NY, U.K
| | - Michael C Willis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, U.K
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