Results 191 to 200 of about 238,779 (294)

Copper Complexes with Arylated Triethylenetetramine Ligands: Reactivity Toward Dioxygen and Peroxides

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Here, we describe new Cu(I)/Cu(II) complexes based on arylated tren ligands and investigate their reactivity toward O2 and peroxides. Low‐temperature–stopped flow studies revealed the formation of transient copper–oxygen species, including superoxido, hydroperoxido, and alkylperoxido intermediates.
Chiara Eleonora Campi   +2 more
wiley   +1 more source

Total Synthesis of rac‐Keramamine C Enabled by Intrinsic H‐Bond‐Induced Conformational Fixation of Amides

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The total synthesis of the manzamine alkaloid keramamine C (2) in its racemic form was achieved in 5 steps, with ring‐closing metathesis as the key step. The metathesis is strongly improved by an intramolecular H‐bond‐induced conformational fixation of the amide bond, inducing close proximity of the terminal double bonds in the precursor molecule.
Jana Ganzmann   +4 more
wiley   +1 more source

1,2‐Diazetidines − Structure, Synthesis, and Functionalization

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
1,2‐Diazetidines are saturated four‐membered heterocycles featuring two adjacent nitrogen atoms. Despite recent advances in their synthesis and promising potential in medicinal chemistry, the chemistry of these cyclic hydrazines remains underexplored.
Stefan Roesner
wiley   +1 more source

Fatal Opioid Overdoses by Historical and Contemporary Neighborhood-Level Structural Racism.

open access: yesJAMA Health Forum
Uzzi M   +7 more
europepmc   +1 more source

State-Level Structural Racism and Children's Dental Care Access and Oral Health. [PDF]

open access: yesJDR Clin Trans Res
Kranz AM   +3 more
europepmc   +1 more source

Pd‐Catalyzed Cyclotrimerization and Cycloaddition of 5,6‐Didehydrobenzo[8]annulenes (BenzoCOTynes): Formation of Nonplanar Tri[8]annulenes and Diels–Alder Cycloadducts

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A Pd(0)‐catalyzed cyclotrimerization of benzoCOTynes to form tri(benzo[8]annulenes) was developed. Three distinct isomers were isolated and structurally characterized by single‐crystal X‐ray diffraction. Ligand modulation proved crucial for enhancing regioselectivity: P(4‐OMePh), and (S)‐tBu‐Phox promoted the formation of the symmetric isomers.
Jesús Bello‐García   +2 more
wiley   +1 more source

Allyship Motives and Their Differential Associations With Identity and Collective Action

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT Across three studies (N = 785) in the context of anti‐racist collective action in the United States and Germany, we empirically validate a theoretical framework of four motives for advantaged group allyship: outgroup‐focused, ingroup‐focused, personal and morality. We investigate the types of identification these motives stem from and how they
Lea Hartwich, Julia C. Becker
wiley   +1 more source

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