56148-65-3Relevant academic research and scientific papers
Iron-catalyzed domino decarboxylation-oxidation of α,β-unsaturated carboxylic acids enabled aldehyde C-H methylation
Gong, Pei-Xue,Xu, Fangning,Cheng, Lu,Gong, Xu,Zhang, Jie,Gu, Wei-Jin,Han, Wei
supporting information, p. 5905 - 5908 (2021/06/18)
A practical and general iron-catalyzed domino decarboxylation-oxidation of α,β-unsaturated carboxylic acids enabling aldehyde C-H methylation for the synthesis of methyl ketones has been developed. This mild, operationally simple method uses ambient air as the sole oxidant and tolerates sensitive functional groups for the late-stage functionalization of complex natural-product-derived and polyfunctionalized molecules.
Reusable, magnetic Raney nickel based palladium catalysts for the Heck coupling in aqueous media
Bumagin, N. A.
, p. 2034 - 2040 (2021/11/05)
Hybrid materials based on Pd- and Cu-doped Raney nickel appeared to be highly efficient catalysts for the Heck reaction in aqueous media in the absence of organic cosolvents. The catalysts can be easily removed by an external magnet and reused without losing catalytic activity.
Triptycene carbene palladium compound and application thereof
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Paragraph 0092-0099, (2021/05/08)
The invention discloses a triptycene carbene palladium compound and an application thereof, the structural formula of the triptycene carbene palladium compound is represented by a formula I or a formula II; compared with a conventional metal palladium catalyst, the triptycene carbene palladium compound is simple and convenient to prepare, high in yield and suitable for various substrates, the usage amount of the catalyst can be reduced to one ten thousandth, and the triptycene carbene palladium compound has a good catalytic effect on various metal palladium catalytic reactions; and the triptycene carbene palladium compound has important application value for researching the progress and application of catalytic reaction.
Triptycene carbene allyl palladium compound and application thereof
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Paragraph 0054-0061, (2021/06/02)
The invention relates to a triptycene carbene allyl palladium compound and application thereof. The structural formula of the triptycene carbene allyl palladium compound is a formula I or a fotmula II. Compared with a conventional metal palladium catalyst, the triptycene carbene allyl palladium compound is easy and convenient to prepare, high in yield and suitable for various substrates, the use amount of a catalyst can be reduced to one ten thousandth, and the compound has a good catalytic effect on various metal palladium catalytic reactions. The compound has important application value for researching the progress and application of catalytic reaction.
Triptycene carbene palladium pyridine complex and application thereof
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Paragraph 0052-0058, (2021/06/12)
The invention relates to a triptycene carbene palladium pyridine complex and application thereof. The structural formula of the triptycene carbene palladium pyridine complex is shown as a formula I. The complex provided by the invention is correct in detection. Based on the defects that a metal catalyst used for organic reaction at the present stage cannot be suitable for various substrates, the catalyst in use amount and cost and is difficult to preserve for a long time, the invention provides the triptycene carbene palladium pyridine complex used as a catalyst, wherein the preparation is simple and convenient, the yield is high, the triptycene carbene palladium pyridine complex is suitable for various substrates, the usage amount of the catalyst can be reduced to one ten thousandth, and the triptycene carbene palladium pyridine complex has a better catalytic effect on various metal palladium catalytic reactions. The triptycene carbene palladium pyridine complex has important application value for researching the progress and application of catalytic reaction.
Triptycene carbene tridentate metal coordination compound and application thereof
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Paragraph 0059-0067, (2021/06/22)
The invention relates to a triptycene carbene tridentate metal coordination compound, wherein the structural formula of the triptycene carbene tridentate metal coordination compound is shown in the specification. According to the invention, the compound is correct in detection; based on the problems that a metal catalyst used in an organic reaction at the present stage cannot be suitable for various substrates, the catalyst content is high, the cost is high, long-time storage is difficult, and the like, the triptycene carbene tridentate metal coordination compound provided by the invention is used as a catalyst, the preparation is simple and convenient, the yield is high, the triptycene carbene tridentate metal coordination compound is suitable for various substrates, the usage amount of the catalyst can be reduced to one ten thousandth, and the triptycene carbene tridentate metal coordination compound has a better catalytic effect on various metal catalytic reactions, and has important application value for researching the progress and application of catalytic reaction.
Oxime-derived palladacycle Immobilized in an Ionic Liquid Brush as an Efficient and Reusable Catalyst for Mozoroki-Heck Reaction in Neat Water
Wang, Rong,Li, Shan,Li, Jing,Wei, Junfa
, (2019/09/17)
An efficient and reusable heterogeneous catalyst with oxime-derived palladacycle immobilized in an ionic liquid brush has been synthesized and an environmentally-friendly procedure have been developed for coupling aryl iodides and bromides with acrylic acid. These reactions were conducted in neat water under aerobic conditions with water-insoluble or even solid aryl halides and they proceeded smoothly and cleanly without any organic co-solvent or other additives. The ionic liquid brush could be easily recovered and reused at least five times without significant loss of activity. The protocol has the advantages of excellent yields, environmental friendliness, and catalyst recyclability.
Transition-metal-free C-P bond formation via decarboxylative phosphorylation of cinnamic acids with P(O)H compounds
Liu, Lixin,Zhou, Dan,Dong, Jianyu,Zhou, Yongbo,Yin, Shuang-Feng,Han, Li-Biao
, p. 4190 - 4196 (2018/04/14)
A novel, transition-metal-free phosphorylation of cinnamic acids with P(O)H compounds has been developed via radical-promoted decarboxylation under mild conditions. This method provides simple, efficient, and versatile access to valuable (E)-alkenylphosphine oxides in satisfactory yields with a wide variety of substrates.
Noble metal-free catalytic decarboxylation of oleic acid to n-heptadecane on nickel-based metal-organic frameworks (MOFs)
Yang,McNichols,Davidson,Schweitzer,Gómez-Gualdrón,Trewyn,Sellinger,Carreon
, p. 3027 - 3035 (2017/08/01)
Nickel based metal organic frameworks (Ni-MOFs) were successfully synthesized using new conjugated carboxylic acid linkers. These conjugated carboxylic acid linkers were synthesized using mild Heck coupling that led to the incorporation of functional groups not possible by traditional synthetic methods. Control of linker size allows for porosity tuning of the crystalline network and high surface area, that, in theory, results in the increased accessibility to Ni metal centers for catalysis. The resultant crystalline Ni-MOFs displayed BET areas as high as ～314 m2 g-1. To investigate their catalytic activity for conversion of oleic acid to liquid hydrocarbons, Ni-MOFs were grown on zeolite 5A beads that served as catalytic supports. The resultant catalysts displayed heptadecane selectivity as high as ～77% at mild reaction conditions, one of the highest yields for non-noble metal containing catalysts. The catalytic activity correlated to the concentration of acid sites. A slight decrease in catalytic activity was observed after catalysts recycling.
Recyclable glucose-derived palladium(0) nanoparticles as in situ-formed catalysts for cross-coupling reactions in aqueous media
Camp, Jason E.,Dunsford, Jay J.,Dacosta, Oliver S. G.,Blundell, Rebecca K.,Adams, James,Britton, Joshua,Smith, Robert J.,Bousfield, Thomas W.,Fay, Michael W.
, p. 16115 - 16121 (2016/02/20)
In situ-generated, glucose-derived palladium(0) nanoparticles were shown to be convenient and effective catalysts for aqueous Mizoroki-Heck, Sonogashira and Suzuki-Miyaura cross-coupling reactions. The addition of only 4-10 mol% glucose to the reaction mixture lead to a significant increase in yield of the desired products in comparison to processes that omitted the renewable sugar. Interestingly, the Mizoroki-Heck reaction was observed to proceed in good yield even as the reaction reached acidic pH levels. Extensive analysis of the size and morphology of the in situ-formed palladium nanoparticles using advanced analytical techniques showed that the zero valent metal was surrounded by hydrophilic hydroxyl groups. The increased aqueous phase affinity afforded by these groups allowed for facile recycling of the catalyst.
