Results 161 to 170 of about 24,300 (226)

Cryogenic Efficient Phase Separation of Oil-water Emulsions with Amphiphilic Hyperbranched Poly(amido-amine)

Journal of Materials Chemistry A, 2023
To improve the extraction efficiency of practical components of crude oil emulsions, n-hexadecanoyl hyperbranched poly(amido-amine) (CHPAMAM), with HPAMAM as the structural core and palmitic acid chain as the decorated shell,...
Shu Yan, Pengfei Jiang, Xinghong Zhang, Yongsheng Guo, Wenjun Fang   +4 more
semanticscholar   +1 more source

A Parent Iron Amido Complex in Catalysis of Ammonia Oxidation.

Journal of the American Chemical Society, 2022
Parent amido complexes are crucial intermediates in ammonia-based transformations. We report a well-defined ferric ammine system [Cp*Fe(1,2-Ph2PC6H4NH)(NH3)]+ ([1-NH3]+), which processes electrocatalytic ammonia oxidation to N2 and H2 at a mild potential.
Yongxian Li, Jiayi Chen, Qiyi Miao, Xin-Meng Yu, Lei Feng, Rong-zhen Liao, Shengfa Ye, C. Tung, Wenguang Wang   +8 more
semanticscholar   +1 more source

Hyperbranched Poly(amido amine) Demulsifiers Using Diaminonaphthalene as the Central Core and Their Demulsification Performance in Oil-in-Water and Water-in-Oil Emulsions

, 2021
Hyperbranched poly(amido amine) demulsifiers (PNDA-1 or PNDA-2) were synthesized with 1,5-diaminonaphthalene or 1,8-diaminonaphthalene as the central core by an improved “one-pot” method.
Zejun Zhang, Xuening Feng, Guanxin Zeng, Huanyu Liu, Liwei Shen, Ying Yang, Huaikui Yuan, Xuemin Yan, Yuanzhu Mi   +8 more
semanticscholar   +1 more source

Crystal Packing Modulation of the Strength of Resonance-Assisted Hydrogen Bonds and the Role of Resonance-Assisted Pseudoring Stacking in Geminal Amido Esters: Study Based on Crystallography and Theoretical Calculations

Crystal Growth & Design, 2020
A detailed experimental and theoretical investigation of a series of substituted geminal amido esters (ethyl (2E)-3-(arylamino)-2-(arylcarbamoyl)prop-2-enoate, AME-1–8) leading to the identificatio...
P. Venkatesan, S. Thamotharan, M. Percino, A. Ilangovan   +3 more
semanticscholar   +1 more source

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO2 Nanoparticles

Photochemistry and Photobiology, 2018
Titanium oxide nanoparticles were doped with copper and characterized by XRD, FT‐IR, TEM, and SEM. The surface morphology was spherical with 15–26 nm as particle size. The doped titanium oxide (Co/TiO2) nanomaterial was used for photodegradation of amido
I. Ali, Omar M. L. Alharbi, Z. Alothman, Ahmad Yacine Badjah   +3 more
semanticscholar   +1 more source

C3-Chiral Tripodal Amido Complexes

Chemistry - A European Journal, 2001
A comprehensive study into the coordination chemistry of two C3-chiral tripodal amido ligands has been carried out. The amido ligands contain a trisilylmethane backbone and chiral peripheral substituents. The amine precursors. HC(SiMe2NH[(S)-1-phenylethyl]]3 (1) and HC[SiMe2NH[(R)-1-indanyl]]3 (2) were found to be in equilibrium in solution with the ...
L H, Gade, P, Renner, H, Memmler, F, Fecher, C H, Galka, M, Laubender, S, Radojevic, M, McPartlin, J W, Lauher   +8 more
openaire   +4 more sources

Chemo- and Enantioselective Hydrogenation of ɑ-Formyl Enamides: An Efficient Access to Chiral ɑ-Amido Aldehydes.

Angewandte Chemie, 2019
In order to effectively synthesize chiral ɑ-amino aldehydes, which have a wide range of potential applications in organic synthesis and medicinal chemistry, a highly chemo- and enantioselective hydrogenation of ɑ-formyl enamides has been developed ...
Jian Zhang, J. Jia, Xincheng Zeng, Yuanhao Wang, Zhenfeng Zhang, I. Gridnev, Wanbin Zhang   +6 more
semanticscholar   +1 more source

Cyclic and Linear Polyhydroxylbutyrates from Ring-Opening Polymerization of β-Butyrolactone with Amido-Oxazolinate Zinc Catalysts

Macromolecules, 2019
A series of amido-oxazolinate zinc complexes have been employed for the ring-opening polymerization of rac-β-butyrolactone (BBL).
Muneer Shaik, J. Peterson, G. Du
semanticscholar   +1 more source

Amidyl Radicals by Oxidation of α-Amido-oxy Acids: Transition-Metal-Free Amidofluorination of Unactivated Alkenes.

Angewandte Chemie, 2018
A three-component transition-metal-free amidofluorination of unactivated alkenes and styrenes is presented. α-Amido-oxy acids are introduced as efficient and easily accessible amidyl radical precursors that are oxidized by a photoexcited organic ...
Heng Jiang, A. Studer
semanticscholar   +1 more source

The Hafnium-Pyridyl Amido-Catalyzed Copolymerization of Ethene and 1-Octene: How Small Amounts of Ethene Impact Catalysis

ACS Catalysis, 2019
Copolymerization of ethene and 1-octene is catalyzed by the Hf-pyridyl amido complex used in chain-shuttling polymerization. Active site counts and the molar mass distribution of catalyst-bound polymeryls are determined by chromophore quench-labeling ...
Eric S. Cueny, C. Landis
semanticscholar   +1 more source