Journal ArticleDOI
Organocatalytic Oxidation. Asymmetric Epoxidation of Olefins Catalyzed by Chiral Ketones and Iminium Salts
O. Andrea Wong,Yian Shi +1 more
TLDR
Ketones with an Attached Chiral Moiety, Chiral Iminium Salt-Catalyzed Epoxidation, and Other Carbohydrate-Based Catalysts 3976 2.8.2.Abstract:
2.6.4. Other Carbohydrate-Based Catalysts 3976 2.7. Carbocyclic Ketones 3977 2.8. Ketones with an Attached Chiral Moiety 3979 3. Chiral Iminium Salt-Catalyzed Epoxidation 3979 3.read more
Citations
More filters
Journal ArticleDOI
Electrochemical Oxidative Csp3—H/S—H Cross‐Coupling with Hydrogen Evolution for Synthesis of Tetrasubstituted Olefins
Journal ArticleDOI
Highly enantioselective epoxidation of olefins by H 2 O 2 catalyzed by a non-heme Fe(ii) catalyst of a chiral tetradentate ligand
Mainak Mitra,Olaf Cussó,Satish S. Bhat,Mingzhe Sun,Marco Cianfanelli,Miquel Costas,Ebbe Nordlander +6 more
TL;DR: The catalysis results indicate that the Fe(ii) complex is capable of effecting comparatively high enantioselectivities (>80%) in the epoxidation reactions of olefins with H2O2.
Journal ArticleDOI
Aldehyde-catalyzed epoxidation of unactivated alkenes with aqueous hydrogen peroxide
Ierasia Triandafillidi,Ierasia Triandafillidi,Maroula G. Kokotou,Dominik Lotter,Christof Sparr,Christoforos G. Kokotos +5 more
TL;DR: In this paper, an atropisomeric two-axis aldehyde capable of catalytic turnover was identified for high-yielding epoxidations of cyclic and acyclic alkenes.
Journal ArticleDOI
Oxidation of olefins using molecular oxygen catalyzed by a part per million level of recyclable copper catalyst under mild conditions
TL;DR: Copper catalysts with an imidazole salt tag ([Cu-Imace-R-H][X], X− = F−, Cl−, Br−, I−, CF3CO2−, HSO4−, NO3−, PF6− or BF4−; R = H or CH3] show quite high reactivity for the oxidation of non-aromatic olefins with good selectivity for epoxides as mentioned in this paper.
Journal ArticleDOI
Recent Advances in Iminium-Salt-Catalysed Asymmetric Epoxidation
David P. Day,Philip B. Sellars +1 more
TL;DR: The research in this thesis depicts some of the most current developments in the area of asymmetric epoxidation of alkenes using chiral iminium salt catalysts using Page's dihydroisoquinolinium im inium salt catalyst.
References
More filters
Journal ArticleDOI
Metal-Catalyzed Epoxidations of Alkenes with Hydrogen Peroxide
Benjamin S. Lane,Kevin Burgess +1 more
TL;DR: Metal Oxides Generated in Situ 2461 4.1.
Journal ArticleDOI
Advances in Homogeneous and Heterogeneous Catalytic Asymmetric Epoxidation
TL;DR: This paper presents results of aalysis experiment conducted at the Dalian Institute of Chemical Physics of Chinese Academy of Sciences (Dalian 116023) and Jingmen Technological College (Jingmen 448000) using gas chromatography for the recovery of Na6(CO3) from Na2SO4.
Journal ArticleDOI
Green oxidation with aqueous hydrogen peroxide
TL;DR: Aqueous H2O2 is an ideal oxidant, when coupled with a tungstate complex and a quaternary ammonium hydrogensulfate as an acidic phase-transfer catalyst in an economically, technically, and environmentally satisfying manner.