Results 151 to 160 of about 84,237 (324)

Chiral imidazolium and triazolium salts as NHC and aNHC ligand precursors: A promising framework for asymmetric epoxidation catalysis

Results in Chemistry
Two chiral imidazolium salts and one chiral triazolium salt were synthesized containing a chiral cyclohexane bridge based on the salen ligand framework of the Jacobsen-Katsuki epoxidation catalysts.
Tim P. Schlachta, Leon F. Richter, Fritz E. Kühn   +2 more
doaj   +1 more source

Unraveling the mechanism of the manganese-salen epoxidation [PDF]

, 2014
Chiral salen-type complexes are valuable catalysts for the antioselective epoxidation of unfunctionlized olefins. The mechanism of this reaction with the manganese-salen complex has always been the subject of an intense debate [1, 2].
Bogaerts, Thomas, Van Der Voort, Pascal, Van Neck, Dimitri, Van Speybroeck, Veronique, Van Yperen-De Deyne, Andy, Wouters, Sebastian   +5 more
core   +1 more source

Kinetics of (Porphyrin)manganese(III)‐Catalyzed Olefin Epoxidation with a Soluble Iodosylbenzene Derivative [PDF]

, 2006
James P. Collman, Li Zeng, Hong J. H. Wang, Aiwen Lei, John I. Brauman   +4 more
openalex   +1 more source

Greener route to 4-vinyl-1-cyclohexane 1,2-epoxide synthesis using batch and continuous reactors

Green Processing and Synthesis, 2014
Polystyrene 2-(aminomethyl)pyridine (Ps.AMP) supported molybdenum (Mo)(VI) complex (Ps.AMP.Mo) was prepared, characterized and assessed as a catalyst for batch and continuous epoxidation of 4-vinyl-1-cyclohexene (4-VCH) using tert-butyl hydroperoxide ...
Mohammed Misbahu L., Mbeleck Rene, Patel Dipesh, Sherrington David C., Saha Basudeb   +4 more
doaj   +1 more source

Recent Applications of the Simple Hydrocarbon Cyclooctatetrene as a Starting Material for Complex Molecule Synthesis [PDF]

, 2012
Cyclooctatetraene [COT], a simple non-aromatic cyclic polyene, is capable of undergoing a variety of oxidation and cycloaddition reactions to afford polycyclic structures.
Donaldson, William, Glaeske, Kevin W
core   +2 more sources

Grafting of Molecularly Ordered Mesoporous Phenylene‐Silica with Molybdenum Carbonyl Complexes: Efficient Heterogeneous Catalysts for the Epoxidation of Olefins [PDF]

, 2010
Ana C. Coelho, Salete S. Balula, Sofia M. Bruno, João C. Alonso, Nicolas Bion, Paula Ferreira, Martyn Pillinger, Anabela A. Valente, João Rocha, Isabel S. Gonçalves   +9 more
openalex   +1 more source

Rational Design of Hyoscyamine 6β‐Hydroxylase for the Efficient Production of Scopolamine

Plant Biotechnology Journal, EarlyView.
Yong Meng, Yicheng Wang, Wentang Chen, Junnan Li, Siyuan Liao, Chunxian Yang, Lingjiang Zeng, Xiaozhong Lan, Min Chen, Zhihua Liao, Junlan Zeng   +10 more
wiley   +1 more source

Impact of Limonene Dioxide Incorporation Into DGEBA Epoxy Resins: Effect on Thermal, Rheological, Mechanical, and Dynamic Mechanical Properties

Journal of Applied Polymer Science, Volume 143, Issue 4, January 20, 2026.
Scheme illustrating the evolution of mechanical, thermal, and rheological properties from the 100% LDO sample to the 100% DGEBA resin sample across six studied compositions with varying LDO:DGEBA ratios. ABSTRACT This study investigates the incorporation of limonene dioxide (LDO), a bio‐based epoxide, into bisphenol A diglycidyl ether (DGEBA) epoxy ...
Francine B. Takamoto, Otávio Bianchi, Sandro C. Amico, Cesar L. Petzhold, Maurício C. D. F. Xavier, Daiane Romanzini   +5 more
wiley   +1 more source

Highly Efficient Organocatalytic House‐Meinwald Rearrangement for the Facile Synthesis of Aldehydes: Swift Access to Ibuprofen

Chemistry – A European Journal, Volume 32, Issue 2, 9 January 2026.
We use readily available epoxides and 0.5 mol% bis(trifluoromethane)sulfonimide (Tf2N) as a catalyst to synthesize a broad range of aldehydes in yields ranging from 89% to 97%. Furthermore, we identified aldehyde dimerization intermediates at lower temperatures and observed their cleavage at 55 °C.
Friedemann Dressler, Ihssane El Fdali, Luisa L. Ciezarek, Peter R. Schreiner   +3 more
wiley   +1 more source

The In-Situ Epoxidation of Rubber Seed Oil (Hevea brasiliensis) by Peroxyacids

Engineering Proceedings
This paper adds to the sustainable materials field by in-situ epoxidation of rubber seed oil (RSO), a highly underutilized resource that has been sporadically used, using an optimized combination of 30% hydrogen peroxide and acetic/formic acid sulfuric ...
Eni Budiyati, Auliya Rahmah, Nur Ahmad Fauzi   +2 more
doaj   +1 more source