Chinese Journal of Applied Chemistry ›› 2023, Vol. 40 ›› Issue (3): 413-419.DOI: 10.19894/j.issn.1000-0518.220212

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Rongalite Promoted Arylation of Benzoquinone

Min-Xiao XU1, Liang WANG2(), Cheng-Fang CHEN3   

  1. 1.Security Clearance Lab,Jiangsu Police Institute,Nanjing 210031,China
    2.School of Chemical and Pharmaceutical Engineering,Changzhou Vocational Institute of Engineering,Changzhou 213164,China
    3.Shandong Tian Bao Chemical Co. LTD,Pingyi 273300,China
  • Received:2022-06-14 Accepted:2022-11-10 Published:2023-03-01 Online:2023-03-27
  • Contact: Liang WANG
  • About author:lwcczu@126.com
  • Supported by:
    China Postdoctoral Science Foundation(2018M632289);the “333” High-level Talents Training Project in Jiangsu Province of China

Abstract:

The arylation reaction of benzoquinone using aryl iodides as the arylating reagent and rongalite (hydroxymethanesulfinic acid monosodium salt dihydrate) as the super electron donor has been developed under mild conditions. The reaction conditions are optimized using 4-iodonitrobenzene and benzoquinone as the model substrates. The effects of base, solvent, reaction temperature and substrate ratio on the reaction are investigated. Results show that the optimum reaction condition is as follows: 4-iodonitrobenzene (0.2 mmol), benzoquinone (1 mmol), rongalite (0.4 mmol), potassium hydroxide (0.6 mmol), DMSO (1 mL), nitrogen atmosphere, 80 ℃ 24 h. Under this condition, the yield of the target product could reach up to 82%. Other aryl iodides and quinones also show good compatibilities, affording the corresponding products in 62%~84% yields.

Key words: Radical reaction, Arylation, Benzoquinone, Aryl iodides, Rongalite

CLC Number: