Mechanistic Studies on the Epoxidation of Alkenes by Macrocyclic Manganese Porphyrin Catalysts
Sign Up to like & getrecommendations! Published in 2022 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.202200280
Abstract: Abstract Macrocyclic metal porphyrin complexes can act as shape‐selective catalysts mimicking the action of enzymes. To achieve enzyme‐like reactivity, a mechanistic understanding of the reaction at the molecular level is needed. We report a mechanistic… read more here.
Keywords: epoxidation alkenes; cage; mechanistic studies; oxo ligand ... See more keywords
Preparation and characterization of micro-spherical poly-organo-silsesquioxane immobilized ligand systems to support MoO2(acac)2 and investigation of their catalytic properties in epoxidation of alkenes
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sol-Gel Science and Technology"
DOI: 10.1007/s10971-018-4592-3
Abstract: AbstractPoly(chloropropyl-methyl)silsesquioxanes (PCMSQ) were prepared using the base catalyzed sol–gel processing on methyltrimethoxysilane (MTMS) and 3-chloropropyltriethoxysilane (CPTES) with 5:5, 6:4, and 7:3 molar ratios in methanol and water. The PCMSQ with 6:4 molar ratio of MTMS:CPTES,… read more here.
Keywords: support moo2; epoxidation alkenes; micro spherical; spherical poly ... See more keywords
Highly efficient epoxidation of alkenes with m-chloroperbenzoic acid catalyzed by nanomagnetic Co(III)@Fe3O4/SiO2 salen complex
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Chemical Sciences"
DOI: 10.1007/s12039-017-1229-y
Abstract: AbstractA new type of heterogeneous Co(III) complex was synthesized by covalent grafting of homogeneous Co(III) salen complex onto the surface of Fe3O4/SiO2 nanoparticle (NP). The heterogeneous nanocatalyst was characterized by X-ray diffraction (XRD), thermogravimetric analysis… read more here.
Keywords: iii; microscopy; fe3o4 sio2; epoxidation ... See more keywords
High surface area, nanostructured boehmite and alumina catalysts: Synthesis and application in the sustainable epoxidation of alkenes
Sign Up to like & getrecommendations! Published in 2019 at "Applied Catalysis A: General"
DOI: 10.1016/j.apcata.2018.12.017
Abstract: We report a new, straightforward and inexpensive sol-gel route to prepare boehmite nanorods [gamma-AlO(OH)-NR] with an average length of 23 nm +/- 3 nm, an average diameter of 2 nm +/- 0.3 nm and a… read more here.
Keywords: area; high surface; alumina catalysts; surface area ... See more keywords
Hierarchical Ti-containing hollownest-structured zeolite synthesized by seed-assisted method for catalytic epoxidation of alkenes efficiently
Sign Up to like & getrecommendations! Published in 2019 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2019.121754
Abstract: Abstract Recently, a Ti-containing hollownest-structured zeolite (Ti-HSZ) material with the shell constructed by randomly intergrown MWW (framework type code) flaky crystals has been synthesized through one-step rotating hydrothermal method within 3.5 days, which shows predominant… read more here.
Keywords: containing hollownest; structured zeolite; hollownest structured; seed ... See more keywords
Biomimetic Aerobic Epoxidation of Alkenes Catalyzed by Cobalt Porphyrin under Ambient Conditions in the Presence of Sunflower Seeds Oil as a Co-Substrate
Sign Up to like & getrecommendations! Published in 2020 at "ACS Omega"
DOI: 10.1021/acsomega.9b03714
Abstract: In this work, a mild and sustainable catalytic aerobic epoxidation of alkenes catalyzed by cobalt porphyrin was performed in the presence of sunflower seeds oil. Under ambient conditions, the conversion rate of trans-stilbene reached 99%,… read more here.
Keywords: alkenes catalyzed; aerobic epoxidation; epoxidation; epoxidation alkenes ... See more keywords
Modulating Charges of Dual Sites in Multivariate Metal-Organic Frameworks for Boosting Selective Aerobic Epoxidation of Alkenes.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.3c00460
Abstract: Selective aerobic epoxidation of alkenes without any additives is of great industrial importance but still challenging because the competitive side reactions including C═C bond cleavage and isomerization are difficult to avoid. Here, we show fabricating… read more here.
Keywords: selective aerobic; epoxidation alkenes; epoxidation; multivariate metal ... See more keywords
Epoxidation of Alkenes with Molecular Oxygen as the Oxidant in the Presence of Nano-Al2O3
Sign Up to like & getrecommendations! Published in 2020 at "Synlett"
DOI: 10.1055/s-0040-1707264
Abstract: The nano-Al2O3-promoted epoxidation of alkenes with molecular oxygen as the oxidant has been developed, providing an efficient route to a variety of epoxides in moderate to excellent yields. The environmentally friendly and efficient nano-Al2O3 catalyst… read more here.
Keywords: oxygen oxidant; epoxidation alkenes; molecular oxygen; alkenes molecular ... See more keywords