Results 201 to 210 of about 455,246 (392)

Dual Photoredox/Cu‐Catalysis Enables Diastereoselective Synthesis of 3‐β‐Ethynyltropanes via Decarboxylative Alkynylation

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 13, July 23, 2025.
A copper‐catalyzed decarboxylative alkynylation of tropanes is developed. This approach works under mild conditions and selectively produces a range of 3‐β‐alkynylated tropanes. Moreover, it provides a versatile and convergent platform for further functionalization of the triple bond.
Mayssa Zayene   +6 more
wiley   +1 more source

The Failing Heart Relies on Ketone Bodies as a Fuel

open access: yesCirculation, 2016
G. Aubert   +13 more
semanticscholar   +1 more source

Synergistic Visible Light Nanophotocatalysis and Asymmetric Organocatalysis for the Stereoselective α‐Alkylation of Aldehydes

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 13, July 23, 2025.
An unprecedent dual catalytic nanophotocatalytic and asymmetric organocatalytic system for the α‐functionalization of aldehydes is developed using carbon nanodots as photosensitizers. The optimized methodology yields the alkylated products with up to 94% yield and up to 98:2 e.r., evidencing the possible recycling of the nanocatalysts.
Antonio Di Sabato   +9 more
wiley   +1 more source

Three‐Component Synthesis of γ‐Amino Esters with α‐Quaternary Carbon Centers via NHC/Photoredox Dual Catalysis

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
γ‐Amino acid derivatives with an α‐quaternary center are prevalent in medicinally important compounds. A dual N‐heterocyclic carbene/photocatalytic pathway is developed for the three‐component synthesis of α, α ‐disubstituted γ‐amino esters. This methodology allows for the rapid synthesis of diverse libraries of γ‐amino esters in good yields.
Adam X. Wayment, Karl A. Scheidt
wiley   +1 more source

Heterogeneous Copper‐Catalyzed 1,4‐Conjugate Additions of Grignard Reagents to Cyclic and Linear Enones

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
The 1,4‐conjugate addition of Grignard reagents to various cyclic and linear enones using a heterogeneous catalyst is reported. Recyclable copper nanoparticles immobilized on polysaccharide support (e.g., cellulose, chitosan) enable high chemo‐ and regioselectivity.
Luca Deiana   +5 more
wiley   +1 more source

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