Acta Chimica Sinica ›› 2025, Vol. 83 ›› Issue (4): 390-400.DOI: 10.6023/A25010005 Previous Articles     Next Articles

Review

饱和C(sp3)—H键肟化反应

徐安佗a,b, 李骏一a, 刘强a,*()   

  1. a 兰州大学 天然产物化学全国重点实验室 兰州 730000
    b 南通诺泰生物医药技术有限公司 南通 226133
  • 投稿日期:2025-01-02 发布日期:2025-03-12
  • 作者简介:

    徐安佗, 2001年毕业于兰州大学化学系, 获得学士学位, 自2002年起, 一直在制药行业从事药物化学研发和管理工作. 目前经营一家医药研发公司.

    李骏一, 2024年毕业于兰州大学, 获学士学位. 目前在兰州大学攻读硕士学位. 研究兴趣为N-亚硝胺类化合物键均裂反应.

    刘强, 2001年和2006年分别在兰州大学获得学士和博士学位. 2009年~至今, 历任兰州大学讲师、副教授、教授. 2009年~2011年, 中国科学院理化技术研究所超分子光化学研究组从事博士后研究. 现为兰州大学天然产物化学全国重点实验室教授, 博士生导师, 中国化学会光化学专业委员会委员. 主要研究领域涉及有机光化学和自由基合成化学.

    † 共同第一作者.
  • 基金资助:
    甘肃省科技重大专项(22ZD6FA006); 及国家自然科学基金(21871123); 及国家自然科学基金(22171120)

C(sp3)—H Bond Oximinylation

Antuo Xua,b, Junyi Lia, Qiang Liua()   

  1. a State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000
    b Nantong Noatic Bio-Pharm Technology Co., Ltd., Nantong 226133
  • Received:2025-01-02 Published:2025-03-12
  • Contact: E-mail: liuqiang@lzu.edu.cn
  • About author:† These authors contributed equally to this work.
  • Supported by:
    Science and Technology Major Program of Gansu Province of China(22ZD6FA006); National Natural Science Foundation of China(21871123); National Natural Science Foundation of China(22171120)

Oxime is a widely used organic compound with numerous applications in chemistry, biology, environmental science, medicine, pesticides, materials, and related industrial production. Among the various synthetic methods, directly converting carbon-hydrogen bonds in hydrocarbon compounds into oximes is the most straightforward and practical approach for synthesizing oximes. The oximinylations of reactive methylene and methyl C(sp3)—H bonds often involve oximinylating reagents such as nitrous acid, nitrosyl halides, nitrite, and nitrosyl esters, with the nitrosyl cation as a crucial intermediate. In contrast, radical-mediated oximinylations have a broader substrate scope and can even be applied to substrates containing only unactivated C(sp3)—H bonds. Mechanistically, the reactions involve the homolytic cleavage of a nitroso compound via light irradiation or heating, generating a heteroatom-centered radical and a nitric oxide radical. The heteroatom-centered radical subsequently abstracts a hydrogen atom from the substrate to form an alkyl radical, which then undergoes subsequent radical reactions and finally couples with the nitric oxide radical. This coupling produces a nitroso intermediate, which isomerizes to oxime. This paper reviews the oximinylations of saturated C(sp3)—H bonds from the early 20th century to the present. It categorizes the reactions based on their mechanisms, including the oximinylations of reactive methylene and methyl C(sp3)—H bonds, radical-mediated oximinylations of C(sp3)—H bonds, and metal-mediated oximinylations of C(sp3)—H bonds. Additionally, this paper not only elucidates the development of the C(sp3)—H oximinylation reaction but also discusses the challenges in this field and offers future perspectives with the aim of providing insights for innovative applications in synthetic chemistry and industrial processes.

Key words: C—H bond activation, oxime, oximinylation, nitric oxide, nitrosyl cation