化学学报 ›› 2023, Vol. 81 ›› Issue (8): 1015-1029.DOI: 10.6023/A23050244 上一篇    下一篇

所属专题: 庆祝《化学学报》创刊90周年合辑

综述

重氮化合物在高分子合成化学中的应用进展

于乐飞a, 姚兴奇a, 王剑波a,b,*()   

  1. a 北京大学化学与分子工程学院 北京分子科学国家研究中心 生物有机与分子工程教育部重点实验室 北京 100871
    b 中国科学院上海有机化学研究所 金属有机化学国家重点实验室 上海 200032
  • 投稿日期:2023-05-21 发布日期:2023-09-14
  • 作者简介:

    于乐飞, 2019年本科毕业于北京大学, 目前在北京大学化学与分子工程学院攻读博士学位(导师: 李子臣教授、王剑波教授). 主要从事基于卡宾以及重氮化合物的高分子聚合反应研究.

    姚兴奇, 2017年本科毕业于山东大学, 2022年博士毕业于北京大学化学与分子工程学院(导师: 王剑波教授). 主要从事基于金属卡宾的碳氢键插入与高分子聚合反应研究.

    王剑波, 1983年本科毕业于南京理工大学; 1990年获日本北海道大学博士学位; 1990年至1993年在瑞士日内瓦大学从事博士后研究; 1993年至1995年在美国威斯康星大学从事博士后研究; 1995年至今在北京大学化学与分子工程学院开展独立研究工作. 主要从事过渡金属催化的卡宾转移、卡宾偶联以及基于卡宾的高分子聚合等研究.

    庆祝《化学学报》创刊90周年.
  • 基金资助:
    项目受北京分子科学国家研究中心(8202200300)

Recent Advance of Diazo Compounds in Polymer Synthesis

Lefei Yua, Xing-Qi Yaoa, Jianbo Wanga,b()   

  1. a Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871
    b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032
  • Received:2023-05-21 Published:2023-09-14
  • Contact: *E-mail: wangjb@pku.edu.cn
  • About author:
    Dedicated to the 90th anniversary of Acta Chimica Sinica.
  • Supported by:
    Beijing National Laboratory of Molecular Sciences(8202200300)

重氮化合物的转化反应在有机合成中已经得到深入的发展, 人们基于此希望将其应用范围进一步延伸至高分子合成化学. 将重氮化合物的高效有机反应发展成高分子聚合方法, 对于实现结构新颖且具有应用价值的聚合物的合成具有重要的意义. 目前, 这一领域仍存在较大的发展空间, 本综述将对近年来重氮化合物在高分子合成化学中应用进行总结, 包括链式聚合、逐步聚合、聚合物末端官能化和聚合物后修饰等四个方面, 最后对重氮化合物在高分子合成领域所存在的挑战进行展望.

关键词: 重氮化合物, 卡宾聚合, 交叉偶联, 末端官能化, 聚合物后修饰

Based on the well development of diazo compound transformations in organic synthesis, it is expected to extend its applications to the field of polymer synthesis. It is of vital importance to transform efficient organic reactions of diazo compounds into new polymerization methodology in order to afford polymers with new structures and functions. Currently, there is still great development potential in the application of diazo compounds in polymer synthesis. This review highlights the recent advancements of polymer synthesis chemistry with diazo compounds, including chain-growth polymerization, step-growth polymerization, end-group functionalization and post-polymerization modification. Transition-metal-catalyzed chain-growth polymerization of diazoacetates constructs C—C main chain from one carbon unit. Through the development of catalytic diazoacetate polymerization, the synthesis of high molecular weight polymers, stereocontrol polymerization and living/controlled polymerization can be realized successively. The stepwise polymerization of diazo compounds originated from their efficient organic conversions. The insertion reaction of diazo compounds into O—H and N—H bonds can be extended to stepwise polymerization to afford polyethers, polyesters and polyamines that are not easily accessible through other synthetic methods, while cross-coupling polymerization of diazo compounds via metal carbene insertion-migration mechanism can realize the synthesis of polymers with novel structures. Diazoacetates and diazomalonates can be employed to regulate the terminal structures of polymers synthesized through metal-catalyzed vinyl addition polymerization or ring-opening metathesis polymerization of olefins, and successively end-capped by metal carbene. The post-polymerization modifications based on diazo compounds can be applied to the introduction of polar functional groups into polyolefin. Compared to the copolymerization of polar olefins, the post-polymerization functionalization strategy avoids the depressed reactivity of varied monomers, and can be applicable to a broad scope of functional groups. The thermal and mechanical properties of polymers can be improved by this method. Finally, the future challenges in expanding the approaches on polymer chemistry of diazo compounds are prospected in this review.

Key words: diazo compound, carbene polymerization, cross coupling, end group functionalization, post modification