Results 231 to 240 of about 190,996 (323)

Two‐Step Synthesis of a Chiral Fluorinated Alcohol With Silica‐Supported Enzyme RrADH in Batch and Continuous Flow Mode

open access: yesChemistry – A European Journal, EarlyView.
A two‐step process was transferred from batch to flow mode for the synthesis of (R)‐2‐fluoro‐1‐phenylethanol as a benchmark, consisting of a decarboxylative fluorination in aqueous media, followed by an enantioselective biocatalytic reduction of the prochiral intermediate with RrADH immobilized on silica supraparticles.
Egzon Cermjani   +7 more
wiley   +1 more source

Simultaneous removal of estrogens and pathogens from secondary treated wastewater by solar photocatalytic treatment [PDF]

open access: yes, 2014
Chatzisymeon, E.   +4 more
core  

β‐Scission of Tertiary Alcohols on a Platinum‐Loaded Titanium Dioxide Photocatalyst for C─C Bond‐Forming Reactions

open access: yesChemistry – A European Journal, EarlyView.
A strategy for the Pt/TiO2‐photocatalyzed β‐scission of nonactivated 3° alcohols in the absence of external oxidants and additives was developed. A wide variety of C‐centered radicals were generated and subsequently engaged in C─C bond‐forming reactions.
Shu Sakurai   +3 more
wiley   +1 more source

Photochemical reduction of aryl chlorides, bromides, and iodides <i>via</i> ternary EDA complexes with guanidine bases. [PDF]

open access: yesChem Sci
Hannan RJ   +7 more
europepmc   +1 more source

Generation of a Ground‐State Electron Donor Utilizing Stored Light Energy

open access: yesChemistry – A European Journal, EarlyView.
Chemically stored light energy enables the generation of dianion reductants (∼−2.7 V) from vicinal diols derived from diaryl ketone photodimerization. These ground‐state electron donors efficiently reduce challenging substrates at room temperature, including aryl bromides, alkyl iodides, and sulfonamides.
Marc Taillefer   +2 more
wiley   +1 more source

Asymmetric Reduction of Unactivated Alkenes

open access: yesChemistry – A European Journal, EarlyView.
Unactivated alkenes rank among the most inert functional groups in synthesis and their selective reduction remains challenging. This Review charts the evolution from classical metal‐catalyzed hydrogenation to radical hydrogen atom transfer (HAT) and emerging biocatalytic concepts, highlighting how complementary mechanistic strategies, including the ...
Nico D. Fessner   +3 more
wiley   +1 more source

Insights into the Photocatalytic Arene Bromination Enabled by Cs2AgBiBr6 Microparticles

open access: yesChemistry – A European Journal, EarlyView.
A sustainable photocatalytic bromination of electron‐rich arenes is enabled by low‐toxicity Cs2AgBiBr6 double‐perovskite microparticles using HBr as an atom‐economical bromine source. Surface‐derived bromine radicals drive highly selective mono‐bromination under mild conditions.
Daniele Conelli   +8 more
wiley   +1 more source

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