Results 131 to 140 of about 59,417 (298)

Recent Advances in Porphyrin‐Based Magnetic Nanocomposites: Preparation, Characterization, and Catalytic Application in the Epoxidation of Olefins

Nano Select, EarlyView.
This article reviews the recent advances in the strategies of preparation, characterizations, catalytic efficiency, and plausible mechanisms of metalloporphyrin‐based magnetic nanocatalysts focused on the oxidation of olefins during 2013–2024. ABSTRACT Catalytic oxidation of olefins is a vital class of reaction that has drawn huge interest in both ...
Sara Payamifar, Amin Foroozandeh, Fatemeh Nejabat, Majid Abdouss, Saeed Rayati, Rasoul Esmaeely Neisiany   +5 more
wiley   +1 more source

Asymmetric Aziridination of Allylic Carbamates Using Ion‐Paired Rhodium Complexes and Extrapolation to C─H Amination of Phenethyl Carbamates

Angewandte Chemie, Volume 137, Issue 29, July 14, 2025.
Aziridination of alkenes is an important route to chiral nitrogen‐containing building blocks. We report that carbamate‐functionalized allylic alcohols undergo highly enantioselective aziridination using achiral dimeric Rh complexes ion‐paired with cinchona alkaloid‐derived chiral cations.
Arthur R. Lit, Shotaro Takano, Christian Zachau, Ioana Băltărețu, Robert J. Phipps   +4 more
wiley   +2 more sources

Extra hands to help you in epoxidation or other reactions with SOLVAY HYDROGEN PEROXIDE [PDF]

, 1960

openalex   +1 more source

Exploring Unspecific Peroxygenase Selectivity with Diverse Hydrocarbon Substrates

ChemistryOpen, EarlyView.
Unspecific peroxygenases (UPOs) are versatile enzymes that can be used for different reactions. However, selectivity of UPOs needs to be evaluated for the desired application. Thus, the selectivity of a panel of UPOs was evaluated in this work, and it revealed diverse reactivity profiles depending on the enzyme and substrate.
Essi Rytkönen, Nina Hakulinen, Janne Jänis, Juha Rouvinen   +3 more
wiley   +1 more source

Ag-Cu alloy surfaces in an oxidizing environment: a first-principles study

, 2008
Recent experiments on model catalysts have shown that Ag-Cu alloys have improved selectivity with respect to pure silver for ethylene epoxidation. In this paper we review our first-principles investigations on the (111) surface of this alloy and present ...
Bocquet, Boer, Catherine Stampfl, Christensen, Ertl, Greeley, Greeley, Han, Hendriksen, Hohenberg, Hu, Huber, Jankowiak, Kim, Kitchin, Klikovits, Kohn, Kokalj, Li, Lindgren, Linic, Linic, Linic, Liu, Marzari, Matthias Scheffler, Maurel, Michaelides, Monkhorst, Neugebauer, Oppo, Perdew, Piccinin, Pleth Nielsen, Reuter, Reuter, Reuter, Reuter, Reuter, Reuter, Rogal, Røder, Schmid, Schnadt, Seriani, Simone Piccinin, Sinfelt, Soon, Stampfl, Stampfl, Stull, Tersoff, Torres, van Santen, Vanderbilt, Wang, Weinert   +56 more
core   +1 more source

The Atmospheric Pressure Capillary Plasma Jet Is Well‐Suited to Supply H2O2 for Plasma‐Driven Biocatalysis

ChemistryOpen, EarlyView.
A capillary plasma jet is used to generate H2O2 in situ to fuel enzymatic hydroxylation reactions. H2O2 production is tuned by adjusting the water vapor in the feed gas to accommodate unspecific peroxygenase from Agrocybe aegerita. Together, enzyme immobilization and an active prevention of product inhibition and H2O2 buildup increase enzyme ...
Tim Dirks, Davina Stoesser, Steffen Schüttler, Frank Hollmann, Judith Golda, Julia E. Bandow   +5 more
wiley   +1 more source

Essential Oil Profiles of Lippia turbinata (Verbenaceae) from Argentina: Insights from a Systematic Review and Meta‐Analysis

ChemistryOpen, EarlyView.
This study systematically reviews essential oil (EO) profiles of Lippia turbinata (Verbenaceae) populations from Argentina. A meta‐analysis reveals significant chemical variability and distinct chemotypes, primarily defined by limonene, carvone, β‐caryophyllene, and caryophyllene oxide.
Fernando Livio Corzo, Franco Emmanuel Calvo, Emilio Fernando Lizarraga, Guillermo Emilio Marcial, Maria Ines Mercado   +4 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

Sustainable Photochromic Wearables With Excellent Retention and Superior Stability for Customizable Patterns and Information Security Encryption

SusMat, EarlyView.
A fiber‐based photochromic wearable is developed by covalently bonding MM nanoparticles with a sheath‐core structure into pristine cotton fabrics. The photochromic wearable exhibits remarkable fatigue resistance (>40 cycles), rapid light response, and outstanding color retention duration (>60 days).
Junze Zhang, Xinlong Liu, Tiandi Chen, Jing Han, Taosif Ahmed, Xin Wang, Qian Wang, Cuiqin Fang, Bingang Xu   +8 more
wiley   +1 more source

Safranal epoxide – A potential source for diverse therapeutic applications

Saudi Pharmaceutical Journal, 2018
Safranal is an organic compound isolated from saffron oil. Photo epoxidation and thermal reactions of safranal can be a significant tool for the design of drugs to act as anticancer agents and potent chemoprevention.
Suzan Khayyat, Eman Elgendy
doaj