Results 271 to 280 of about 166,370 (359)

A Radical Cascade with Double Intramolecular Hydrogen Atom Transfer for the Generation of Bisfunctionalized Cyclopentanes from Linear Alkynes

open access: yesAngewandte Chemie, Volume 138, Issue 5, 28 January 2026.
A radical cascade process involving the activation of two aliphatic C–H bonds in a series of five elementary steps converts readily available terminal alkynes into functionalized cyclopentylmethyl arylsulfones. The methodology delivers flexible synthetic intermediates and was applied to the preparation of diquinanes and triquinanes possessing a rare ...
Lise Benoist   +4 more
wiley   +2 more sources

Stereoselectivity in the Synthesis of 5'-Alkylated Nicotines

open access: diamond, 1986
Makoto Shibagaki   +2 more
openalex   +1 more source

Exploring the influence of lid region residues on fatty acid selectivity in a lipase originating from Rhizopus oryzae

open access: yesThe FEBS Journal, Volume 293, Issue 3, Page 878-893, February 2026.
Lipases are vital in modifying lipid substrates across industries such as food, cosmetics, and pharmaceuticals. Among their features, fatty acid selectivity is particularly important for industrial applications. Rhizopus oryzae lipase (ROL) stands out for its high selectivity and broad applicability.
Zehui Dong   +3 more
wiley   +1 more source

Harnessing Photoenzymatic Systems for Intermolecular C–H Fluorination

open access: yesAngewandte Chemie, Volume 138, Issue 5, 28 January 2026.
Despite the remarkable versatility of enzymes for catalyzing complex organic transformations under mild aqueous conditions, no biocatalytic system has been reported for intermolecular C–H fluorination. A radical photoenzymatic approach is introduced that leverages a designed de novo protein scaffold with an unnatural amino acid to achieve precise ...
Yu Zhou   +7 more
wiley   +2 more sources

Computational rational design of unspecific peroxygenase for C-H oxidation. [PDF]

open access: yesSci Adv
Gao R   +9 more
europepmc   +1 more source

Thiophene Derivatives as Versatile Precursors for (Hetero)Arene and Natural Product Synthesis

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 5, 28 January 2026.
Hidden but Powerful: Thiophenes and their saturated analogues have been demonstrated to be versatile C4‐building blocks that can be rapidly applied to natural product synthesis and the construction of functionalized (hetero)arenes. This minireview aims to provide a concise overview of the strategies and implementations of these sulfur‐containing ...
Anna Keimer, Franz‐Lucas Haut
wiley   +1 more source

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