An efficient protocol for the preparation of aldehydes/ketones and imines by an inorganic-ligand supported iron catalyst

2018 ◽  
Vol 5 (23) ◽  
pp. 3454-3459 ◽  
Author(s):  
Yongyan Zhai ◽  
Mengqi Zhang ◽  
Haibin Fang ◽  
Shi Ru ◽  
Han Yu ◽  
...  
Keyword(s):  
Iron Catalyst ◽  
Aerobic Oxidation ◽  
High Yield ◽  
Inorganic Ligand ◽  
Organic Halides ◽  
Supported Iron

An efficient aerobic oxidation protocol of organic halides/amines promoted by an inorganic-ligand supported iron catalyst with O2 (1 atm) as the sole oxidant is reported, which can afford aldehydes/ketones and imines in high yield and good selectivity, respectively.

Aldehydes as potential acylating reagents for oxidative esterification by inorganic ligand-supported iron catalysis

2019 ◽  
Vol 21 (16) ◽  
pp. 4550-4554 ◽  
Author(s):  
Han Yu ◽  
Jingjing Wang ◽  
Zhikang Wu ◽  
Qixin Zhao ◽  
Demin Dan ◽  
...  
Keyword(s):  
Iron Catalyst ◽  
Iron Catalysis ◽  
Oxidative Esterification ◽  
Inorganic Ligand ◽  
Supported Iron

An inorganic ligand-supported iron catalyst which can effectively catalyze oxidative esterification of various aldehydes and alcohols with excellent yields.

Highly selective and efficient olefin epoxidation with pure inorganic-ligand supported iron catalysts

2019 ◽  
Vol 48 (37) ◽  
pp. 14201-14205 ◽  
Author(s):  
Zhuohong Zhou ◽  
Guoyong Dai ◽  
Shi Ru ◽  
Han Yu ◽  
Yongge Wei
Keyword(s):  
Iron Catalyst ◽  
Iron Catalysts ◽  
Olefin Epoxidation ◽  
Inorganic Ligand ◽  
Supported Iron

An inorganic ligand-supported iron catalyst, which can effectively catalyze olefin epoxidation with excellent yields.

Study of aerobic oxidation of phenyl PtII complexes (dpms)PtIIPh(L) (dpms = di(2-pyridyl)methanesulfonate; L = water, methanol, or aniline)

2009 ◽  
Vol 87 (1) ◽  
pp. 110-120 ◽  
Author(s):  
Julia R Khusnutdinova ◽  
Peter Y Zavalij ◽  
Andrei N Vedernikov
Keyword(s):  
Aqueous Solution ◽  
Aerobic Oxidation ◽  
Reductive Elimination ◽  
High Yield ◽  
Ambient Conditions ◽  
Activation Barriers ◽  
Methanol Solutions ◽  
Anionic Species ◽  
Mechanism Of Oxidation ◽  
Solution Mechanism

Oxidation of phenyl PtII complexes K[(dpms)PtIIPh2], 1, (dpms)PtIIPh(MeOH), 2, (dpms)PtIIPh(OH2), 3, and methyl PtII complex (dpms)PtIIMe(NH2Ph), 6, with O2 in aqueous or methanol solutions under ambient conditions leads to corresponding (dpms)PtIVR(X)OH complexes (R = X = Ph, 7; R = Ph, X = OH, 8; R = Ph, X = OMe, 9; R = Me, X = NHPh; 11; dpms = di(2-pyridyl)methanesulfonate). Complexes 7–9 could be isolated in high yield. Complex 11 as well as its phenyl analogue (dpms)PtIVPh(NHPh)OH, 10 can be prepared in high yield by oxidation of corresponding (dpms)PtIIR(NH2Ph) with H2O2 in methanol. Phenyl PtII complexes (dpms)PtIIPh(HX) derived from HX = aniline and DMSO, 4 and 5, respectively, are inert toward O2. The rate of oxidation of 1–5 with O2 decreases in the order 1 > 3 ~ 2 » 4, and 5 is unreactive. Methyl analogues are significantly more reactive compared with their phenyl counterparts. Proposed mechanism of oxidation with O2 includes formation of anionic species (dpms)PtIIR(X)– responsible for reaction with dioxygen. Attempts at C–O and C–N reductive elimination from phenyl PtIV complexes 7–10 do not lead to phenyl derivatives PhX at 80–100 °C, consistent with the results of the DFT estimates of corresponding activation barriers, ΔG0 exceeding 28 kcal/mol.Key words: platinum phenyl complexes, oxidation, dioxygen, aqueous solution, mechanism.

Mesoporous Silica Nanoparticles Supported Atomically Precise Palladium Nanoclusters Catalyzed Aerobic Oxidation of Alcohols in Water

2021 ◽  
Vol 43 (2) ◽  
pp. 193-193
Author(s):  
Taiping Gao Taiping Gao ◽  
Xiaolin Ma Xiaolin Ma ◽  
Xin Li Xin Li ◽  
Qiang Xu and Yubao Wang Qiang Xu and Yubao Wang
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Aerobic Oxidation ◽  
Alcohol Oxidation ◽  
High Yield ◽  
Impregnation Method ◽  
Oxidation Reactions ◽  
Clean System ◽  
Aqueous Conditions

The first mesoporous silica nanoparticles (MSNs) supported atomically precise palladium nanoclusters catalyzed alcohol oxidation reactions in water have been achieved. The catalysts was synthesized with simple impregnation method and well characterized by TEM, FT-IR, XPS anddiffuse reflectance optical spectrum and the results proved that the Pd nanoclustersimmobilized into the pores of MSNs.The as-prepared catalyst show excellent activity for the alcohol oxidation reactions with high yield under extremely mild aqueous conditions utilizes 1 atmosphere of molecular oxygen as sole oxidant. The features of clean system, gram-scale oxidation and easy recovery catalyst make this method cost effectively and environmentally benign.

scholarly journals Nanocatalysis in continuous flow: supported iron oxide nanoparticles for the heterogeneous aerobic oxidation of benzyl alcohol

2013 ◽  
Vol 15 (6) ◽  
pp. 1530 ◽  
Author(s):  
David Obermayer ◽  
Alina M. Balu ◽  
Antonio A. Romero ◽  
Walter Goessler ◽  
Rafael Luque ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Benzyl Alcohol ◽  
Iron Oxide Nanoparticles ◽  
Continuous Flow ◽  
Aerobic Oxidation ◽  
Oxide Nanoparticles ◽  
Oxidation Of Benzyl Alcohol ◽  
Supported Iron
Sign in / Sign up

Export Citation Format

Share Document