Review
Chemistry, Organic
Kai Sun, Qi-Yan Lv, Ying-Wu Lin, Bing Yu, Wei-Min He
Summary: The cyano group as a radical acceptor in cascade reactions offers diverse opportunities for the convenient construction of various important heterocycles and carbocycles, leading to the rapid buildup of molecular complexity. This review focuses on summarizing the dynamic field of radical cascade processes using the cyano group as a radical acceptor, which has not been well documented so far.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Environmental Sciences
Linjun Qin, Lili Yang, Xiaoyun Liu, Cui Li, Bingcheng Lin, Minghui Zheng, Guorui Liu
Summary: This study unveiled the mechanism of EPFR formation from catechol during heating and the influence of metal oxides on this process, providing crucial information for better control of EPFR formation from anthropogenic activities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Pannan Miao, Ruining Li, Xianfeng Lin, Liangming Rao, Zhankui Sun
Summary: Cascade reactions are efficient and environmentally friendly methods for constructing multiple carbon-carbon bonds in one step. This method involves a relay olefination and radical addition process induced by visible light, offering mild conditions, robustness, and excellent functionality compatibility. The synthetic utility of this approach is demonstrated by a two-step synthesis of indolizidine 209D.
Article
Chemistry, Multidisciplinary
Shangwei Feng, Qiuqin Huang, Shuming Yang, Zhenghuan Lin, Qidan Ling
Summary: This study introduces two metal-free 2D layered ammonium halides that promote organic room temperature phosphorescence through energy transfer, achieving full-color and even white ultra-long RTP. These doped halides can be used to create information ink and complex anti-counterfeiting and chemical sensors.
Article
Chemistry, Multidisciplinary
Lin Wang, Shu-Rong Li, Yu-Zhen Chen, Hai-Long Jiang
Summary: In this work, nanocrystals of Cu2O were encapsulated by metal-organic frameworks (MOFs) through a simple strategy, resulting in the successful fabrication of Cu@HKUST-1 composites with uniform morphology and controlled MOF thickness. The integration of Cu NCs properties with MOF advantages helped to create a multifunctional catalyst, exhibiting cooperative catalytic activity and improved recyclability.
Article
Chemistry, Inorganic & Nuclear
Anupam Sarkar, Subhradeep Mistry, Saurav Bhattacharya, Srinivasan Natarajan
Summary: NewMOF compounds [Zn-2(SDBA)(3-ATZ)(2)]& BULL;solvent I and II were found to effectively convert benzaldehyde dimethyl acetal to 1-(1,3-dinitropropan-2-yl)benzene through a 4-step cascade reaction. This reaction utilized the tetrahedral Zn centers of the MOF compounds as Lewis acidic sites and the free amino groups of the 3-amino triazole ligand as strong Lewis base centers. The importance of spatially separated functional groups in multistep tandem catalysis was highlighted.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Jin Wang, Haitao Liu, Yaohui Liu, Wanting Hao, Yingqi Yang, Yanan Sun, Xianxiu Xu
Summary: An efficient and environmentally friendly aerobic radical cascade reaction has been developed for the synthesis of a diverse range of 2-thio-substituted quinolines using o-vinylphenylisocyanides and thiols, without the need for additional catalysts or oxidants. Mechanistic investigations revealed that the reaction is initiated by a thiyl radical generated under aerobic conditions, which then undergoes radical annulation with a vinyl substituent.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Analytical
Parthasarathy Srinivasan, Soumadri Samanta, John Bosco Balaguru Rayappan, Kamalakannan Kailasam
Summary: In this study, metal-free 2D mesoporous g-C3N4 nanosheets were synthesized for the highly selective and sensitive detection of ethanol at ambient temperature. The nanosheets exhibited a significantly large surface area and excellent sensing characteristics, showing promise for applications in gas sensing technology.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Chemistry, Multidisciplinary
Guo-Qiang Xu, Peng-Fei Xu
Summary: In recent years, impressive progress has been made in the development of organic photoredox catalytic cascade reactions without the need for expensive and toxic transition metals, leading to the synthesis of chemically and biomedically valuable building blocks. This review highlights the recent advancements in this blooming area by introducing new catalytic cascade reactions mediated by organic photoredox catalysts and discussing their mechanisms and applications as reported in recent literature.
CHEMICAL COMMUNICATIONS
(2021)
Review
Chemistry, Organic
Sishi Zhong, Lei Xu, Yunfei Cai
Summary: The Piancatelli reaction is a significant organic synthesis reaction, which can construct diversified functionalized cyclopentenones and polycyclic cyclopentanones. In addition, there have been developments in chiral catalytic reactions in this field.
SYNTHESIS-STUTTGART
(2022)
Review
Energy & Fuels
Mingming Hao, Zhaohui Li
Summary: One-pot synergistic/cascade reactions are a promising direction for future catalysis, with increasing attention on utilizing solar light to initiate these reactions. Metal-organic frameworks (MOFs) are considered as promising multifunctional catalysts for light-initiated synergistic/cascade reactions due to their excellent photoactive activity and unique structural characteristics. This review summarizes recent developments on using MOFs for light-initiated one-pot synergistic/cascade reactions, highlighting the challenges and future prospects in developing smart multifunctional MOFs for these reactions.
Article
Engineering, Environmental
Mingxia Sun, Hongjie Song, Xiaobo Xie, Wenxi Yang, Yingying Su, Yi Lv
Summary: A specific luminescent probe was developed to selectively detect hydroxyl radicals, providing insights into the dynamic processes of hydroxyl radical generation and consumption.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Organic
Mohammad A. Ranjbari, Hossein Tavakol
Summary: Various benzofuran derivatives were synthesized through a catalyst-free reaction between nitroepoxides and salicylaldehydes under K2CO3 and DMF at 110 degrees C, resulting in yields ranging from 33-84% after 12 hours. The highest yields were achieved using 3-nitrosalicylaldehyde. A plausible mechanism was proposed for the reaction, supported by evidence such as the detection of released acetate anion using FTIR and the isolation and structure determination of a critical intermediate.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Huan Xia, Na Li, Wenquan Huang, Yang Song, Yanbin Jiang
Summary: This study synthesized Imitative NH₂-MIL-101 with highly efficient peroxidase-like activity, which served as an excellent catalyst for oxidations of various peroxidase substrates and provided potential matrix for enzyme immobilization. The material also showed synergistic effect in enzymatic cascade reactions, enhancing the catalytic activity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Zhipeng Huang, Yang Yang, Junju Mu, Genheng Li, Jianyu Han, Puning Ren, Jian Zhang, Nengchao Luo, Ke-Li Han, Feng Wang
Summary: Radicals are key intermediates in reactions and their reactivity poses challenges to controlling reactions over heterogeneous catalysts. Metal nanoparticles can stabilize and manipulate free radical species generated from photo-excited TiO2, facilitating controlled radical reactions on catalyst surfaces. These insights are crucial for designing advanced heterogeneous catalytic systems.
CHINESE JOURNAL OF CATALYSIS
(2023)
