27845-50-7Relevant articles and documents
Non-nanogold catalyzed aerobic oxidation of secondary amines to imines
Zhu, Bolin,Angelici, Robert J.
, p. 2157 - 2159 (2007)
Bulk gold powder (～103 nm particle size) is a highly active catalyst for the oxidative dehydrogenation of secondary amines to imines under the mild conditions of 1 atm O2 and 60-100°C. The Royal Society of Chemistry.
Aerobic oxidation of methanol by a Ni(II)-O2 reaction
Edison, Sara E.,Hotz, Richard P.,Baldwin, Michael J.
, p. 1212 - 1213 (2004)
An unusual oxygen-activating Ni(II)-oximate complex oxidizes two-hydrogen atom donating substrates, including the traditionally inert alcohol, methanol, as well as ethanol, benzyl alcohol, benzylamine, and N-methylbenzylamine.
Precise incorporation of transition metals into organolead oxyhalide crystalline materials for photocatalysis
Fang, Lei,Fei, Honghan,Ma, Wen,Song, Xueling,Sun, Chen,Zhang, Lu
, p. 11360 - 11364 (2021)
Organolead halide crystalline materials are an emerging class of high-performance photocatalysts. However, limited studies have been performed to tune their photoactive properties by precise introduction of transition metals. Herein, we report the success
Conjugated HCl-doped polyaniline for photocatalytic oxidative coupling of amines under visible light
Kong, Peng,Liu, Pei,Ge, Zhenyu,Tan, Hao,Pei, Linjuan,Wang, Jie,Zhu, Pengqi,Gu, Xianmo,Zheng, Zhanfeng,Li, Zhong
, p. 753 - 761 (2019)
HCl-Doped polyaniline (PANI-ES) and PANIs of different oxidation states were prepared by a typical oxidative polymerization and subsequent redox reaction, respectively. The photocatalytic performance of PANIs towards selective benzylamine oxidation reacti
Metal-Free Organocatalytic Oxidative Ugi Reaction Promoted by Hypervalent Iodine
Singh, Karandeep,Kaur, Amanpreet,Mithu, Venus Singh,Sharma, Siddharth
, p. 5285 - 5293 (2017)
We report here a novel IBX-promoted oxidative coupling of primary amines and its utilization to Ugi reaction. Advantageously, the reaction could be carried out in choline chloride urea as a natural deep eutectic solvent. A range of imines and bisamides fr
Visible-Light-Promoted [3 + 2] Cycloaddition of 2H-Azirines with Quinones: Access to Substituted Benzo[f]isoindole-4,9-diones
Wang, Lijia,Liu, Chuang,Li, Lei,Wang, Xin,Sun, Ran,Zhou, Ming-Dong,Wang, He
supporting information, p. 719 - 724 (2022/01/22)
A visible-light-promoteded [3 + 2] cycloaddition reaction of 2H-azirines with quinones has been developed under mild reaction conditions. The reaction provides a general and efficient strategy for the synthesis of the benzo[f]isoindole-4,9-diones scaffold
C70Fullerene Catalyzed Photoinduced Aerobic Oxidation of Benzylamines to Imines and Aldehydes
Kumar, Inder,Kumar, Rakesh,Gupta, Shiv Shankar,Sharma, Upendra
, p. 6449 - 6457 (2021/05/29)
C70 fullerene catalyzed photoinduced oxidation of benzylic amines at ambient conditions has been explored here. The developed strategy's main feature includes the additive/oxidant-free conversion of benzylic amine to corresponding imine and aldehydes. The reaction manifests broad substrate scope with excellent function group leniency and is applicable up to the gram scale. Further, symmetrical secondary amines can also be synthesized from benzylic amine in a one-pot two-step process. Various experiments and density functional theory studies revealed that the current reaction involves the generation of reactive oxygen species, single electron transfer reaction, and benzyl radical formation as key steps under photocatalytic conditions.
Covalent Organic Frameworks toward Diverse Photocatalytic Aerobic Oxidations
Liu, Shuyang,Tian, Miao,Bu, Xiubin,Tian, Hua,Yang, Xiaobo
supporting information, p. 7738 - 7744 (2021/05/07)
Photoactive two-dimensional covalent organic frameworks (2D-COFs) have become promising heterogenous photocatalysts in visible-light-driven organic transformations. Herein, a visible-light-driven selective aerobic oxidation of various small organic molecules by using 2D-COFs as the photocatalyst was developed. In this protocol, due to the remarkable photocatalytic capability of hydrazone-based 2D-COF-1 on molecular oxygen activation, a wide range of amides, quinolones, heterocyclic compounds, and sulfoxides were obtained with high efficiency and excellent functional group tolerance under very mild reaction conditions. Furthermore, benefiting from the inherent advantage of heterogenous photocatalysis, prominent sustainability and easy photocatalyst recyclability, a drug molecule (modafinil) and an oxidized mustard gas simulant (2-chloroethyl ethyl sulfoxide) were selectively and easily obtained in scale-up reactions. Mechanistic investigations were conducted using radical quenching experiments and in situ ESR spectroscopy, all corroborating the proposed role of 2D-COF-1 in photocatalytic cycle.
Thiazolo[5,4-d]thiazole-Based Donor–Acceptor Covalent Organic Framework for Sunlight-Driven Hydrogen Evolution
Li, Wenqian,Huang, Xiaofeng,Zeng, Tengwu,Liu, Yahu A.,Hu, Weibo,Yang, Hui,Zhang, Yue-Biao,Wen, Ke
supporting information, p. 1869 - 1874 (2020/12/30)
2D covalent organic frameworks (COFs) could have well-defined arrangements of photo- and electro-active units that serve as electron or hole transport channels for solar energy harvesting and conversion, but their insufficient charge transfer and rapid ch
Sulfur-stabilised copper nanoparticles for the aerobic oxidation of amines to imines under ambient conditions
Martín-García, Iris,Díaz-Reyes, Gloria,Sloan, George,Moglie, Yanina,Alonso, Francisco
supporting information, p. 11312 - 11322 (2021/05/19)
The stabilisation of metal nanoparticles and control of their oxidation state are crucial factors in nanocatalysis. Elemental sulfur has been found to be a cheap and effective stabilising agent for copper nanoparticles in the form of copper(i) oxide. The
